diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 84a1e902ace668fbee40346cf71e3c4c7a519f2e..63fda17212cf97f2857ac1891dfad9dd052cbe6a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -23,7 +23,7 @@ build_ubuntu_gcc:
- mkdir debug
- cd debug
- cmake -DCMAKE_BUILD_TYPE=Debug ..
- - cmake --build .
+ - cmake --build . -j 4
artifacts:
name: "Documentation - $CI_PIPELINE_ID"
paths:
@@ -49,7 +49,7 @@ build_win10_msvc:
- mkdir debug
- cd debug
- cmake -DCMAKE_BUILD_TYPE=Debug ..
- - cmake --build .
+ - cmake --build . -j 4
build_win10_mingw:
only:
@@ -66,7 +66,7 @@ build_win10_mingw:
- mkdir debug
- cd debug
- cmake --no-warn-unused-cli -DCMAKE_EXPORT_COMPILE_COMMANDS:BOOL=TRUE -DCMAKE_BUILD_TYPE:STRING=Debug -DCMAKE_C_COMPILER:FILEPATH=C:\msys64\mingw64\bin\x86_64-w64-mingw32-gcc.exe -DCMAKE_CXX_COMPILER:FILEPATH=C:\msys64\mingw64\bin\x86_64-w64-mingw32-g++.exe .. -G "Unix Makefiles"
- - cmake --build . -j 8
+ - cmake --build . -j 4
build_mac_clang:
only:
@@ -85,7 +85,7 @@ build_mac_clang:
- export LDFLAGS="-L/usr/local/opt/llvm/lib"
- export CPPFLAGS="-I/usr/local/opt/llvm/include"
- cmake -DCMAKE_C_COMPILER="/usr/local/opt/llvm/bin/clang" -DCMAKE_CXX_COMPILER="/usr/local/opt/llvm/bin/clang++" -DCMAKE_BUILD_TYPE=Debug ..
- - cmake --build .
+ - cmake --build . -j 4
deploy_doc_develop:
only:
diff --git a/.gitmodules b/.gitmodules
index 1e5c26deddea8cb725aae8c84513d1dcd18e4cfb..cc3bf1fcd2e1eb8117cbcc7222b04f7041fea520 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -22,9 +22,6 @@
[submodule "modules/gui/lib/imgui"]
path = modules/gui/lib/imgui
url = https://github.com/ocornut/imgui.git
-[submodule "lib/VulkanMemoryAllocator"]
- path = lib/VulkanMemoryAllocator
- url = https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator.git
[submodule "lib/VulkanMemoryAllocator-Hpp"]
path = lib/VulkanMemoryAllocator-Hpp
url = https://github.com/malte-v/VulkanMemoryAllocator-Hpp.git
diff --git a/include/vkcv/Buffer.hpp b/include/vkcv/Buffer.hpp
index ae935ba9501d4d7776cad7e3ba190a2dd02e5e38..f5cd183d21c4ae9a5849ff09fc54af70667c12c6 100644
--- a/include/vkcv/Buffer.hpp
+++ b/include/vkcv/Buffer.hpp
@@ -76,8 +76,8 @@ namespace vkcv {
{}
[[nodiscard]]
- static Buffer<T> create(BufferManager* manager, BufferType type, size_t count, BufferMemoryType memoryType) {
- return Buffer<T>(manager, manager->createBuffer(type, count * sizeof(T), memoryType), type, count, memoryType);
+ static Buffer<T> create(BufferManager* manager, BufferType type, size_t count, BufferMemoryType memoryType, bool supportIndirect) {
+ return Buffer<T>(manager, manager->createBuffer(type, count * sizeof(T), memoryType, supportIndirect), type, count, memoryType);
}
};
diff --git a/include/vkcv/BufferManager.hpp b/include/vkcv/BufferManager.hpp
index c7f32d9f134108bafa87ff493bca4e113d53003a..7bec33d8c4fa752be2487a849c16eaeeea0e6237 100644
--- a/include/vkcv/BufferManager.hpp
+++ b/include/vkcv/BufferManager.hpp
@@ -70,7 +70,7 @@ namespace vkcv
* @param memoryType Type of buffers memory
* @return New buffer handle
*/
- BufferHandle createBuffer(BufferType type, size_t size, BufferMemoryType memoryType);
+ BufferHandle createBuffer(BufferType type, size_t size, BufferMemoryType memoryType, bool supportIndirect);
/**
* Returns the Vulkan buffer handle of a buffer
diff --git a/include/vkcv/Core.hpp b/include/vkcv/Core.hpp
index e7f6688b3d1d1237fbe9d177cd976ec55da85fb8..2d5dcd0f5e00e0870ea3b9cb4ea8d20f2f623c3d 100644
--- a/include/vkcv/Core.hpp
+++ b/include/vkcv/Core.hpp
@@ -185,8 +185,8 @@ namespace vkcv
* return Buffer-Object
*/
template<typename T>
- Buffer<T> createBuffer(vkcv::BufferType type, size_t count, BufferMemoryType memoryType = BufferMemoryType::DEVICE_LOCAL) {
- return Buffer<T>::create(m_BufferManager.get(), type, count, memoryType);
+ Buffer<T> createBuffer(vkcv::BufferType type, size_t count, BufferMemoryType memoryType = BufferMemoryType::DEVICE_LOCAL, bool supportIndirect = false) {
+ return Buffer<T>::create(m_BufferManager.get(), type, count, memoryType, supportIndirect);
}
/**
@@ -271,6 +271,14 @@ namespace vkcv
const std::vector<DescriptorSetUsage> &descriptorSetUsages,
const PushConstants& pushConstants);
+ void recordComputeIndirectDispatchToCmdStream(
+ const CommandStreamHandle cmdStream,
+ const PipelineHandle computePipeline,
+ const vkcv::BufferHandle buffer,
+ const size_t bufferArgOffset,
+ const std::vector<DescriptorSetUsage>& descriptorSetUsages,
+ const PushConstants& pushConstants);
+
/**
* @brief end recording and present image
*/
diff --git a/include/vkcv/DescriptorConfig.hpp b/include/vkcv/DescriptorConfig.hpp
index 767492eb2b27bd8dff56ef2aeb4769c08eed7200..f2a089fd624c02c57db4a65c4a101c4acff371b1 100644
--- a/include/vkcv/DescriptorConfig.hpp
+++ b/include/vkcv/DescriptorConfig.hpp
@@ -1,7 +1,5 @@
#pragma once
-#include <vulkan/vulkan.hpp>
-
#include "vkcv/Handles.hpp"
#include "vkcv/ShaderStage.hpp"
@@ -41,12 +39,12 @@ namespace vkcv
uint32_t bindingID,
DescriptorType descriptorType,
uint32_t descriptorCount,
- ShaderStage shaderStage
+ ShaderStages shaderStages
) noexcept;
uint32_t bindingID;
DescriptorType descriptorType;
uint32_t descriptorCount;
- ShaderStage shaderStage;
+ ShaderStages shaderStages;
};
}
diff --git a/include/vkcv/DrawcallRecording.hpp b/include/vkcv/DrawcallRecording.hpp
index 260fbbc6a2a577d0d333656a1eff4f7f3f88cd69..37cf02d9102fcab5abd10ada711f67b721bcb52b 100644
--- a/include/vkcv/DrawcallRecording.hpp
+++ b/include/vkcv/DrawcallRecording.hpp
@@ -29,8 +29,19 @@ namespace vkcv {
};
struct Mesh {
- inline Mesh(std::vector<VertexBufferBinding> vertexBufferBindings, vk::Buffer indexBuffer, size_t indexCount, IndexBitCount indexBitCount = IndexBitCount::Bit16) noexcept
- : vertexBufferBindings(vertexBufferBindings), indexBuffer(indexBuffer), indexCount(indexCount), indexBitCount(indexBitCount){}
+
+ inline Mesh(){}
+
+ inline Mesh(
+ std::vector<VertexBufferBinding> vertexBufferBindings,
+ vk::Buffer indexBuffer,
+ size_t indexCount,
+ IndexBitCount indexBitCount = IndexBitCount::Bit16) noexcept
+ :
+ vertexBufferBindings(vertexBufferBindings),
+ indexBuffer(indexBuffer),
+ indexCount(indexCount),
+ indexBitCount(indexBitCount) {}
std::vector<VertexBufferBinding> vertexBufferBindings;
vk::Buffer indexBuffer;
diff --git a/include/vkcv/Logger.hpp b/include/vkcv/Logger.hpp
index 1ae0f211e1a3255d624cf78985b0797e9d90c634..bb60561e80baadfcac4956223d9313893547068f 100644
--- a/include/vkcv/Logger.hpp
+++ b/include/vkcv/Logger.hpp
@@ -53,9 +53,10 @@ namespace vkcv {
VKCV_DEBUG_MESSAGE_LEN, \
__VA_ARGS__ \
); \
+ auto output = getLogOutput(level); \
if (level != vkcv::LogLevel::RAW_INFO) { \
fprintf( \
- getLogOutput(level), \
+ output, \
"[%s]: %s [%s, line %d: %s]\n", \
vkcv::getLogName(level), \
output_message, \
@@ -65,12 +66,13 @@ namespace vkcv {
); \
} else { \
fprintf( \
- getLogOutput(level), \
+ output, \
"[%s]: %s\n", \
vkcv::getLogName(level), \
output_message \
); \
} \
+ fflush(output); \
}
#else
diff --git a/include/vkcv/ShaderProgram.hpp b/include/vkcv/ShaderProgram.hpp
index 78b1f02169fe630427b9f66150e32078d42b7b3f..c7d67b19148b3c9ec19ce1b539f9661797d1b38f 100644
--- a/include/vkcv/ShaderProgram.hpp
+++ b/include/vkcv/ShaderProgram.hpp
@@ -13,8 +13,8 @@
#include <vulkan/vulkan.hpp>
#include <spirv_cross.hpp>
#include "VertexLayout.hpp"
-#include "ShaderStage.hpp"
#include "DescriptorConfig.hpp"
+#include "ShaderStage.hpp"
namespace vkcv {
diff --git a/include/vkcv/ShaderStage.hpp b/include/vkcv/ShaderStage.hpp
index 3893bdf5f73408847ceb2b076abfb7d0902bb2f9..52ba5a7e56ed40efda96c27dfd92734880b88f18 100644
--- a/include/vkcv/ShaderStage.hpp
+++ b/include/vkcv/ShaderStage.hpp
@@ -1,19 +1,39 @@
#pragma once
-namespace vkcv {
-
- enum class ShaderStage
- {
- VERTEX,
- TESS_CONTROL,
- TESS_EVAL,
- GEOMETRY,
- FRAGMENT,
- COMPUTE,
- TASK,
- MESH
- };
-
+#include <vulkan/vulkan.hpp>
+namespace vkcv {
+ enum class ShaderStage : VkShaderStageFlags {
+ VERTEX = static_cast<VkShaderStageFlags>(vk::ShaderStageFlagBits::eVertex),
+ TESS_CONTROL = static_cast<VkShaderStageFlags>(vk::ShaderStageFlagBits::eTessellationControl),
+ TESS_EVAL = static_cast<VkShaderStageFlags>(vk::ShaderStageFlagBits::eTessellationEvaluation),
+ GEOMETRY = static_cast<VkShaderStageFlags>(vk::ShaderStageFlagBits::eGeometry),
+ FRAGMENT = static_cast<VkShaderStageFlags>(vk::ShaderStageFlagBits::eFragment),
+ COMPUTE = static_cast<VkShaderStageFlags>(vk::ShaderStageFlagBits::eCompute),
+ TASK = static_cast<VkShaderStageFlags>(vk::ShaderStageFlagBits::eTaskNV),
+ MESH = static_cast<VkShaderStageFlags>(vk::ShaderStageFlagBits::eMeshNV)
+ };
+
+ using ShaderStages = vk::Flags<ShaderStage>;
+
+ constexpr vk::ShaderStageFlags getShaderStageFlags(ShaderStages shaderStages) noexcept {
+ return vk::ShaderStageFlags(static_cast<VkShaderStageFlags>(shaderStages));
+ }
+
+ constexpr ShaderStages operator|(ShaderStage stage0, ShaderStage stage1) noexcept {
+ return ShaderStages(stage0) | stage1;
+ }
+
+ constexpr ShaderStages operator&(ShaderStage stage0, ShaderStage stage1) noexcept {
+ return ShaderStages(stage0) & stage1;
+ }
+
+ constexpr ShaderStages operator^(ShaderStage stage0, ShaderStage stage1) noexcept {
+ return ShaderStages(stage0) ^ stage1;
+ }
+
+ constexpr ShaderStages operator~(ShaderStage stage) noexcept {
+ return ~(ShaderStages(stage));
+ }
}
diff --git a/modules/asset_loader/CMakeLists.txt b/modules/asset_loader/CMakeLists.txt
index c5a1fd0eb9620d3a95af1c52a9e7456337047c7b..870c16279b1578224a966a4a123a465413333555 100644
--- a/modules/asset_loader/CMakeLists.txt
+++ b/modules/asset_loader/CMakeLists.txt
@@ -31,10 +31,10 @@ include(config/FX_GLTF.cmake)
include(config/STB.cmake)
# link the required libraries to the module
-target_link_libraries(vkcv_asset_loader ${vkcv_asset_loader_libraries} vkcv)
+target_link_libraries(vkcv_asset_loader ${vkcv_asset_loader_libraries} vkcv ${vkcv_libraries})
# including headers of dependencies and the VkCV framework
-target_include_directories(vkcv_asset_loader SYSTEM BEFORE PRIVATE ${vkcv_asset_loader_includes})
+target_include_directories(vkcv_asset_loader SYSTEM BEFORE PRIVATE ${vkcv_asset_loader_includes} ${vkcv_includes})
# add the own include directory for public headers
target_include_directories(vkcv_asset_loader BEFORE PUBLIC ${vkcv_asset_loader_include})
diff --git a/modules/asset_loader/include/vkcv/asset/asset_loader.hpp b/modules/asset_loader/include/vkcv/asset/asset_loader.hpp
index 471870fb1e5af3d3c448a66611d9754db9597f85..25d7d5b36d00bad8587fbe082f8ebd041d84fde6 100644
--- a/modules/asset_loader/include/vkcv/asset/asset_loader.hpp
+++ b/modules/asset_loader/include/vkcv/asset/asset_loader.hpp
@@ -11,17 +11,7 @@
#include <cstdint>
#include <filesystem>
-/** These macros define limits of the following structs. Implementations can
- * test against these limits when performing sanity checks. The main constraint
- * expressed is that of the data type: Material indices are identified by a
- * uint8_t in the VertexGroup struct, so there can't be more than UINT8_MAX
- * materials in the mesh. Should these limits be too narrow, the data type has
- * to be changed, but the current ones should be generous enough for most use
- * cases. */
-#define MAX_MATERIALS_PER_MESH UINT8_MAX
-#define MAX_VERTICES_PER_VERTEX_GROUP UINT32_MAX
-
-/** LOADING MESHES
+/* LOADING MESHES
* The description of meshes is a hierarchy of structures with the Mesh at the
* top.
*
@@ -46,53 +36,89 @@
namespace vkcv::asset {
-/** This enum matches modes in fx-gltf, the library returns a standard mode
- * (TRIANGLES) if no mode is given in the file. */
+/**
+ * These return codes are limited to the asset loader module. If unified return
+ * codes are defined for the vkcv framework, these will be used instead.
+ */
+#define ASSET_ERROR 0
+#define ASSET_SUCCESS 1
+
+/**
+ * This enum matches modes in fx-gltf, the library returns a standard mode
+ * (TRIANGLES) if no mode is given in the file.
+ */
enum class PrimitiveMode : uint8_t {
- POINTS=0, LINES, LINELOOP, LINESTRIP, TRIANGLES, TRIANGLESTRIP,
- TRIANGLEFAN
+ POINTS = 0,
+ LINES = 1,
+ LINELOOP = 2,
+ LINESTRIP = 3,
+ TRIANGLES = 4,
+ TRIANGLESTRIP = 5,
+ TRIANGLEFAN = 6
};
-/** The indices in the index buffer can be of different bit width. */
-enum class IndexType : uint8_t { UNDEFINED=0, UINT8=1, UINT16=2, UINT32=3 };
-
-typedef struct {
- // TODO define struct for samplers (low priority)
- // NOTE: glTF defines samplers based on OpenGL, which can not be
- // directly translated to Vulkan. Specifically, OpenGL (and glTF)
- // define a different set of Min/Mag-filters than Vulkan.
-} Sampler;
-
-/** struct for defining the loaded texture */
-typedef struct {
- int sampler; // index into the sampler array of the Scene
- uint8_t channels; // number of channels
- uint16_t w, h; // width and height of the texture
- std::vector<uint8_t> data; // binary data of the decoded texture
-} Texture;
+/**
+ * The indices in the index buffer can be of different bit width.
+ */
+enum class IndexType : uint8_t {
+ UNDEFINED=0,
+ UINT8=1,
+ UINT16=2,
+ UINT32=3
+};
-/** The asset loader module only supports the PBR-MetallicRoughness model for
- * materials.*/
-typedef struct {
- uint16_t textureMask; // bit mask with active texture targets
- // Indices into the Array.textures array
- int baseColor, metalRough, normal, occlusion, emissive;
- // Scaling factors for each texture target
- struct { float r, g, b, a; } baseColorFactor;
- float metallicFactor, roughnessFactor;
- float normalScale;
- float occlusionStrength;
- struct { float r, g, b; } emissiveFactor;
-} Material;
+/**
+ * This struct defines a sampler for a texture object. All values here can
+ * directly be passed to VkSamplerCreateInfo.
+ * NOTE that glTF defines samplers based on OpenGL, which can not be directly
+ * translated to Vulkan. The vkcv::asset::Sampler struct defined here adheres
+ * to the Vulkan spec, having alerady translated the flags from glTF to Vulkan.
+ * Since glTF does not specify border sampling for more than two dimensions,
+ * the addressModeW is hardcoded to a default: VK_SAMPLER_ADDRESS_MODE_REPEAT.
+ */
+struct Sampler {
+ int minFilter, magFilter;
+ int mipmapMode;
+ float minLOD, maxLOD;
+ int addressModeU, addressModeV, addressModeW;
+};
-/** Flags for the bit-mask in the Material struct. To check if a material has a
+/**
+ * This struct describes a (partially) loaded texture.
+ * The data member is not populated after calling probeScene() but only when
+ * calling loadMesh(), loadScene() or loadTexture(). Note that textures are
+ * currently always loaded with 4 channels as RGBA, even if the image has just
+ * RGB or is grayscale. In the case where the glTF-file does not provide a URI
+ * but references a buffer view for the raw data, the path member will be empty
+ * even though the rest is initialized properly.
+ * NOTE: Loading textures without URI is untested.
+ */
+struct Texture {
+ std::filesystem::path path; // URI to the encoded texture data
+ int sampler; // index into the sampler array of the Scene
+
+ union { int width; int w; };
+ union { int height; int h; };
+ int channels;
+
+ std::vector<uint8_t> data; // binary data of the decoded texture
+};
+
+/**
+ * Flags for the bit-mask in the Material struct. To check if a material has a
* certain texture target, you can use the hasTexture() function below, passing
- * the material struct and the enum. */
+ * the material struct and the enum.
+ */
enum class PBRTextureTarget {
- baseColor=1, metalRough=2, normal=4, occlusion=8, emissive=16
+ baseColor=1,
+ metalRough=2,
+ normal=4,
+ occlusion=8,
+ emissive=16
};
-/** This macro translates the index of an enum in the defined order to an
+/**
+ * This macro translates the index of an enum in the defined order to an
* integer with a single bit set in the corresponding place. It is used for
* working with the bitmask of texture targets ("textureMask") in the Material
* struct:
@@ -103,100 +129,196 @@ enum class PBRTextureTarget {
* contact with bit-level operations. */
#define bitflag(ENUM) (0x1u << ((unsigned)(ENUM)))
-/** To signal that a certain texture target is active in a Material struct, its
- * bit is set in the textureMask. You can use this function to check that:
- * Material mat = ...;
- * if (materialHasTexture(&mat, baseColor)) {...} */
-bool materialHasTexture(const Material *const m, const PBRTextureTarget t);
+/**
+ * The asset loader module only supports the PBR-MetallicRoughness model for
+ * materials.
+ */
+struct Material {
+ uint16_t textureMask; // bit mask with active texture targets
+
+ // Indices into the Scene.textures vector
+ int baseColor, metalRough, normal, occlusion, emissive;
+
+ // Scaling factors for each texture target
+ struct { float r, g, b, a; } baseColorFactor;
+ float metallicFactor, roughnessFactor;
+ float normalScale;
+ float occlusionStrength;
+ struct { float r, g, b; } emissiveFactor;
+
+ /**
+ * To signal that a certain texture target is active in this Material
+ * struct, its bit is set in the textureMask. You can use this function
+ * to check that:
+ * if (myMaterial.hasTexture(baseColor)) {...}
+ *
+ * @param t The target to query for
+ * @return Boolean to signal whether the texture target is active in
+ * the material.
+ */
+ bool hasTexture(PBRTextureTarget target) const;
+};
-/** With these enums, 0 is reserved to signal uninitialized or invalid data. */
+/* With these enums, 0 is reserved to signal uninitialized or invalid data. */
enum class PrimitiveType : uint32_t {
UNDEFINED = 0,
POSITION = 1,
NORMAL = 2,
TEXCOORD_0 = 3,
TEXCOORD_1 = 4,
- TANGENT = 5
+ TANGENT = 5,
+ COLOR_0 = 6,
+ COLOR_1 = 7,
+ JOINTS_0 = 8,
+ WEIGHTS_0 = 9
};
-/** These integer values are used the same way in OpenGL, Vulkan and glTF. This
+/**
+ * These integer values are used the same way in OpenGL, Vulkan and glTF. This
* enum is not needed for translation, it's only for the programmers
* convenience (easier to read in if/switch statements etc). While this enum
* exists in (almost) the same definition in the fx-gltf library, we want to
- * avoid exposing that dependency, thus it is re-defined here. */
+ * avoid exposing that dependency, thus it is re-defined here.
+ */
enum class ComponentType : uint16_t {
- NONE = 0, INT8 = 5120, UINT8 = 5121, INT16 = 5122, UINT16 = 5123,
- UINT32 = 5125, FLOAT32 = 5126
+ NONE = 0,
+ INT8 = 5120,
+ UINT8 = 5121,
+ INT16 = 5122,
+ UINT16 = 5123,
+ UINT32 = 5125,
+ FLOAT32 = 5126
};
-/** This struct describes one vertex attribute of a vertex buffer. */
-typedef struct {
+/**
+ * This struct describes one vertex attribute of a vertex buffer.
+ */
+struct VertexAttribute {
PrimitiveType type; // POSITION, NORMAL, ...
+
uint32_t offset; // offset in bytes
uint32_t length; // length of ... in bytes
uint32_t stride; // stride in bytes
- ComponentType componentType; // eg. 5126 for float
- uint8_t componentCount; // eg. 3 for vec3
-} VertexAttribute;
+
+ ComponentType componentType; // eg. 5126 for float
+ uint8_t componentCount; // eg. 3 for vec3
+};
-/** This struct represents one (possibly the only) part of a mesh. There is
+/**
+ * This struct represents one (possibly the only) part of a mesh. There is
* always one vertexBuffer and zero or one indexBuffer (indexed rendering is
* common but not always used). If there is no index buffer, this is indicated
* by indexBuffer.data being empty. Each vertex buffer can have one or more
- * vertex attributes. */
-typedef struct {
+ * vertex attributes.
+ */
+struct VertexGroup {
enum PrimitiveMode mode; // draw as points, lines or triangle?
- size_t numIndices, numVertices;
+ size_t numIndices;
+ size_t numVertices;
+
struct {
enum IndexType type; // data type of the indices
std::vector<uint8_t> data; // binary data of the index buffer
} indexBuffer;
+
struct {
std::vector<uint8_t> data; // binary data of the vertex buffer
std::vector<VertexAttribute> attributes; // description of one
} vertexBuffer;
+
struct { float x, y, z; } min; // bounding box lower left
struct { float x, y, z; } max; // bounding box upper right
+
int materialIndex; // index to one of the materials
-} VertexGroup;
+};
-/** This struct represents a single mesh as it was loaded from a glTF file. It
+/**
+ * This struct represents a single mesh as it was loaded from a glTF file. It
* consists of at least one VertexGroup, which then references other resources
- * such as Materials. */
-typedef struct {
+ * such as Materials.
+ */
+struct Mesh {
std::string name;
std::array<float, 16> modelMatrix;
std::vector<int> vertexGroups;
-} Mesh;
+};
-/** The scene struct is simply a collection of objects in the scene as well as
+/**
+ * The scene struct is simply a collection of objects in the scene as well as
* the resources used by those objects.
- * For now the only type of object are the meshes and they are represented in a
- * flat array.
- * Note that parent-child relations are not yet possible. */
-typedef struct {
+ * Note that parent-child relations are not yet possible.
+ */
+struct Scene {
std::vector<Mesh> meshes;
std::vector<VertexGroup> vertexGroups;
std::vector<Material> materials;
std::vector<Texture> textures;
std::vector<Sampler> samplers;
-} Scene;
+ std::vector<std::string> uris;
+};
/**
- * Load every mesh from the glTF file, as well as materials and textures.
+ * Parse the given glTF file and create a shallow description of the content.
+ * Only the meta-data of the objects in the scene is loaded, not the binary
+ * content. The rationale is to provide a means of probing the content of a
+ * glTF file without the costly process of loading and decoding large amounts
+ * of data. The returned Scene struct can be used to search for specific meshes
+ * in the scene, that can then be loaded on their own using the loadMesh()
+ * function. Note that the Scene struct received as output argument will be
+ * overwritten by this function.
+ * After this function completes, the returned Scene struct is completely
+ * initialized and all information is final, except for the missing binary
+ * data. This means that indices to vectors will remain valid even when the
+ * shallow scene struct is filled with data by loadMesh().
+ * Note that for URIs only (local) filesystem paths are supported, no
+ * URLs using network protocols etc.
*
- * @param path must be the path to a glTF or glb file.
+ * @param path must be the path to a glTF- or glb-file.
+ * @param scene is a reference to a Scene struct that will be filled with the
+ * meta-data of all objects described in the glTF file.
+ * @return ASSET_ERROR on failure, otherwise ASSET_SUCCESS
+ */
+int probeScene(const std::filesystem::path &path, Scene &scene);
+
+/**
+ * This function loads a single mesh from the given file and adds it to the
+ * given scene. The scene must already be initialized (via probeScene()).
+ * The mesh_index refers to the Scenes meshes array and identifies the mesh to
+ * load. To find the mesh you want, iterate over the probed scene and check the
+ * meshes details (eg. name).
+ * Besides the mesh, this function will also add any associated data to the
+ * Scene struct such as Materials and Textures required by the Mesh.
+ *
+ * @param path must be the path to a glTF- or glb-file.
+ * @param scene is the scene struct to which the results will be written.
+ * @return ASSET_ERROR on failure, otherwise ASSET_SUCCESS
+ */
+int loadMesh(Scene &scene, int mesh_index);
+
+/**
+ * Load every mesh from the glTF file, as well as materials, textures and other
+ * associated objects.
+ *
+ * @param path must be the path to a glTF- or glb-file.
* @param scene is a reference to a Scene struct that will be filled with the
* content of the glTF file being loaded.
- * */
-int loadScene(const std::string &path, Scene &scene);
-
-struct TextureData {
- int width;
- int height;
- int componentCount;
- std::vector<char*> data;
-};
-TextureData loadTexture(const std::filesystem::path& path);
+ * @return ASSET_ERROR on failure, otherwise ASSET_SUCCESS
+ */
+int loadScene(const std::filesystem::path &path, Scene &scene);
+
+/**
+ * Simply loads a single image at the given path and returns a Texture
+ * struct describing it. This is for special use cases only (eg.
+ * loading a font atlas) and not meant to be used for regular assets.
+ * The sampler is set to -1, signalling that this Texture was loaded
+ * outside the context of a glTF-file.
+ * If there was an error loading or decoding the image, the returned struct
+ * will be cleared to all 0 with path and data being empty; make sure to always
+ * check that !data.empty() before using the struct.
+ *
+ * @param path must be the path to an image file.
+ * @return Texture struct describing the loaded image.
+ */
+Texture loadTexture(const std::filesystem::path& path);
-}
+} // end namespace vkcv::asset
diff --git a/modules/asset_loader/src/vkcv/asset/asset_loader.cpp b/modules/asset_loader/src/vkcv/asset/asset_loader.cpp
index e3d3072543bd33e1f5a67ae7dac61d229005947a..571d965a400de7197b6fb46f163c4099a5b353f1 100644
--- a/modules/asset_loader/src/vkcv/asset/asset_loader.cpp
+++ b/modules/asset_loader/src/vkcv/asset/asset_loader.cpp
@@ -1,387 +1,784 @@
#include "vkcv/asset/asset_loader.hpp"
#include <iostream>
#include <string.h> // memcpy(3)
+#include <set>
#include <stdlib.h> // calloc(3)
+#include <vulkan/vulkan.hpp>
#include <fx/gltf.h>
#include <stb_image.h>
#include <vkcv/Logger.hpp>
#include <algorithm>
+
namespace vkcv::asset {
-/**
-* convert the accessor type from the fx-gltf library to an unsigned int
-* @param type
-* @return unsigned integer representation
-*/
-// TODO Return proper error code (we need to define those as macros or enums,
-// will discuss during the next core meeting if that should happen on the scope
-// of the vkcv framework or just this module)
-uint8_t convertTypeToInt(const fx::gltf::Accessor::Type type) {
- switch (type) {
- case fx::gltf::Accessor::Type::None :
- return 0;
- case fx::gltf::Accessor::Type::Scalar :
- return 1;
- case fx::gltf::Accessor::Type::Vec2 :
- return 2;
- case fx::gltf::Accessor::Type::Vec3 :
- return 3;
- case fx::gltf::Accessor::Type::Vec4 :
- return 4;
- default: return 10; // TODO add cases for matrices (or maybe change the type in the struct itself)
+ /**
+ * This function unrolls nested exceptions via recursion and prints them
+ * @param e The exception being thrown
+ * @param path The path to the file that was responsible for the exception
+ */
+ static void recurseExceptionPrint(const std::exception& e, const std::string &path) {
+ vkcv_log(LogLevel::ERROR, "Loading file %s: %s", path.c_str(), e.what());
+
+ try {
+ std::rethrow_if_nested(e);
+ } catch (const std::exception& nested) {
+ recurseExceptionPrint(nested, path);
+ }
}
-}
-/**
- * This function unrolls nested exceptions via recursion and prints them
- * @param e error code
- * @param path path to file that is responsible for error
- */
-void print_what (const std::exception& e, const std::string &path) {
- vkcv_log(LogLevel::ERROR, "Loading file %s: %s",
- path.c_str(), e.what());
+ /**
+ * Returns the component count for an accessor type of the fx-gltf library.
+ * @param type The accessor type
+ * @return An unsigned integer count
+ */
+ static uint32_t getComponentCount(const fx::gltf::Accessor::Type type) {
+ switch (type) {
+ case fx::gltf::Accessor::Type::Scalar:
+ return 1;
+ case fx::gltf::Accessor::Type::Vec2:
+ return 2;
+ case fx::gltf::Accessor::Type::Vec3:
+ return 3;
+ case fx::gltf::Accessor::Type::Vec4:
+ case fx::gltf::Accessor::Type::Mat2:
+ return 4;
+ case fx::gltf::Accessor::Type::Mat3:
+ return 9;
+ case fx::gltf::Accessor::Type::Mat4:
+ return 16;
+ case fx::gltf::Accessor::Type::None:
+ default:
+ return 0;
+ }
+ }
- try {
- std::rethrow_if_nested(e);
- } catch (const std::exception& nested) {
- print_what(nested, path);
+ static uint32_t getComponentSize(ComponentType type) {
+ switch (type) {
+ case ComponentType::INT8:
+ case ComponentType::UINT8:
+ return 1;
+ case ComponentType::INT16:
+ case ComponentType::UINT16:
+ return 2;
+ case ComponentType::UINT32:
+ case ComponentType::FLOAT32:
+ return 4;
+ default:
+ return 0;
+ }
}
-}
-/** Translate the component type used in the index accessor of fx-gltf to our
- * enum for index type. The reason we have defined an incompatible enum that
- * needs translation is that only a subset of component types is valid for
- * indices and we want to catch these incompatibilities here. */
-enum IndexType getIndexType(const enum fx::gltf::Accessor::ComponentType &t)
-{
- switch (t) {
- case fx::gltf::Accessor::ComponentType::UnsignedByte:
- return IndexType::UINT8;
- case fx::gltf::Accessor::ComponentType::UnsignedShort:
- return IndexType::UINT16;
- case fx::gltf::Accessor::ComponentType::UnsignedInt:
- return IndexType::UINT32;
- default:
- vkcv_log(LogLevel::ERROR, "Index type not supported: %u", static_cast<uint16_t>(t));
- return IndexType::UNDEFINED;
+ /**
+ * Translate the component type used in the index accessor of fx-gltf to our
+ * enum for index type. The reason we have defined an incompatible enum that
+ * needs translation is that only a subset of component types is valid for
+ * indices and we want to catch these incompatibilities here.
+ * @param t The component type
+ * @return The vkcv::IndexType enum representation
+ */
+ enum IndexType getIndexType(const enum fx::gltf::Accessor::ComponentType &type) {
+ switch (type) {
+ case fx::gltf::Accessor::ComponentType::UnsignedByte:
+ return IndexType::UINT8;
+ case fx::gltf::Accessor::ComponentType::UnsignedShort:
+ return IndexType::UINT16;
+ case fx::gltf::Accessor::ComponentType::UnsignedInt:
+ return IndexType::UINT32;
+ default:
+ vkcv_log(LogLevel::ERROR, "Index type not supported: %u", static_cast<uint16_t>(type));
+ return IndexType::UNDEFINED;
+ }
}
-}
-
-/**
- * This function computes the modelMatrix out of the data given in the gltf file. It also checks, whether a modelMatrix was given.
- * @param translation possible translation vector (default 0,0,0)
- * @param scale possible scale vector (default 1,1,1)
- * @param rotation possible rotation, given in quaternion (default 0,0,0,1)
- * @param matrix possible modelmatrix (default identity)
- * @return model Matrix as an array of floats
- */
-std::array<float, 16> computeModelMatrix(std::array<float, 3> translation, std::array<float, 3> scale, std::array<float, 4> rotation, std::array<float, 16> matrix){
- std::array<float, 16> modelMatrix = {1,0,0,0,
- 0,1,0,0,
- 0,0,1,0,
- 0,0,0,1};
- if (matrix != modelMatrix){
- return matrix;
- } else {
- // translation
- modelMatrix[3] = translation[0];
- modelMatrix[7] = translation[1];
- modelMatrix[11] = translation[2];
- // rotation and scale
- auto a = rotation[0];
- auto q1 = rotation[1];
- auto q2 = rotation[2];
- auto q3 = rotation[3];
-
- modelMatrix[0] = (2 * (a * a + q1 * q1) - 1) * scale[0];
- modelMatrix[1] = (2 * (q1 * q2 - a * q3)) * scale[1];
- modelMatrix[2] = (2 * (q1 * q3 + a * q2)) * scale[2];
-
- modelMatrix[4] = (2 * (q1 * q2 + a * q3)) * scale[0];
- modelMatrix[5] = (2 * (a * a + q2 * q2) - 1) * scale[1];
- modelMatrix[6] = (2 * (q2 * q3 - a * q1)) * scale[2];
-
- modelMatrix[8] = (2 * (q1 * q3 - a * q2)) * scale[0];
- modelMatrix[9] = (2 * (q2 * q3 + a * q1)) * scale[1];
- modelMatrix[10] = (2 * (a * a + q3 * q3) - 1) * scale[2];
-
- // flip y, because GLTF uses y up, but vulkan -y up
- modelMatrix[5] *= -1;
-
- return modelMatrix;
- }
-
-}
-
-bool materialHasTexture(const Material *const m, const PBRTextureTarget t)
-{
- return m->textureMask & bitflag(t);
-}
-
-int loadScene(const std::string &path, Scene &scene){
- fx::gltf::Document sceneObjects;
-
- try {
- if (path.rfind(".glb", (path.length()-4)) != std::string::npos) {
- sceneObjects = fx::gltf::LoadFromBinary(path);
- } else {
- sceneObjects = fx::gltf::LoadFromText(path);
- }
- } catch (const std::system_error &err) {
- print_what(err, path);
- return 0;
- } catch (const std::exception &e) {
- print_what(e, path);
- return 0;
- }
- size_t pos = path.find_last_of("/");
- auto dir = path.substr(0, pos);
-
- // file has to contain at least one mesh
- if (sceneObjects.meshes.size() == 0) return 0;
-
- fx::gltf::Accessor posAccessor;
- std::vector<VertexAttribute> vertexAttributes;
- std::vector<Material> materials;
- std::vector<Texture> textures;
- std::vector<Sampler> samplers;
- std::vector<Mesh> meshes;
- std::vector<VertexGroup> vertexGroups;
- int groupCount = 0;
-
- Mesh mesh = {};
-
- for(int i = 0; i < sceneObjects.meshes.size(); i++){
- std::vector<int> vertexGroupsIndices;
- fx::gltf::Mesh const &objectMesh = sceneObjects.meshes[i];
-
- for(int j = 0; j < objectMesh.primitives.size(); j++){
- fx::gltf::Primitive const &objectPrimitive = objectMesh.primitives[j];
- vertexAttributes.clear();
- vertexAttributes.reserve(objectPrimitive.attributes.size());
-
- for (auto const & attrib : objectPrimitive.attributes) {
-
- fx::gltf::Accessor accessor = sceneObjects.accessors[attrib.second];
- VertexAttribute attribute;
-
- if (attrib.first == "POSITION") {
- attribute.type = PrimitiveType::POSITION;
- posAccessor = accessor;
- } else if (attrib.first == "NORMAL") {
- attribute.type = PrimitiveType::NORMAL;
- } else if (attrib.first == "TEXCOORD_0") {
- attribute.type = PrimitiveType::TEXCOORD_0;
- }
- else if (attrib.first == "TEXCOORD_1") {
- attribute.type = PrimitiveType::TEXCOORD_1;
- } else if (attrib.first == "TANGENT") {
- attribute.type = PrimitiveType::TANGENT;
- } else {
- return 0;
- }
-
- attribute.offset = sceneObjects.bufferViews[accessor.bufferView].byteOffset;
- attribute.length = sceneObjects.bufferViews[accessor.bufferView].byteLength;
- attribute.stride = sceneObjects.bufferViews[accessor.bufferView].byteStride;
- attribute.componentType = static_cast<ComponentType>(accessor.componentType);
-
- if (convertTypeToInt(accessor.type) != 10) {
- attribute.componentCount = convertTypeToInt(accessor.type);
- } else {
- return 0;
- }
-
- vertexAttributes.push_back(attribute);
- }
-
- IndexType indexType;
- std::vector<uint8_t> indexBufferData = {};
- if (objectPrimitive.indices >= 0){ // if there is no index buffer, -1 is returned from fx-gltf
- const fx::gltf::Accessor &indexAccessor = sceneObjects.accessors[objectPrimitive.indices];
- const fx::gltf::BufferView &indexBufferView = sceneObjects.bufferViews[indexAccessor.bufferView];
- const fx::gltf::Buffer &indexBuffer = sceneObjects.buffers[indexBufferView.buffer];
-
- indexBufferData.resize(indexBufferView.byteLength);
- {
- const size_t off = indexBufferView.byteOffset;
- const void *const ptr = ((char*)indexBuffer.data.data()) + off;
- if (!memcpy(indexBufferData.data(), ptr, indexBufferView.byteLength)) {
- vkcv_log(LogLevel::ERROR, "Copying index buffer data");
- return 0;
- }
- }
-
- indexType = getIndexType(indexAccessor.componentType);
- if (indexType == IndexType::UNDEFINED){
- vkcv_log(LogLevel::ERROR, "Index Type undefined.");
- return 0;
- }
- }
-
- const fx::gltf::BufferView& vertexBufferView = sceneObjects.bufferViews[posAccessor.bufferView];
- const fx::gltf::Buffer& vertexBuffer = sceneObjects.buffers[vertexBufferView.buffer];
-
- // only copy relevant part of vertex data
- uint32_t relevantBufferOffset = std::numeric_limits<uint32_t>::max();
- uint32_t relevantBufferEnd = 0;
- for (const auto &attribute : vertexAttributes) {
- relevantBufferOffset = std::min(attribute.offset, relevantBufferOffset);
- const uint32_t attributeEnd = attribute.offset + attribute.length;
- relevantBufferEnd = std::max(relevantBufferEnd, attributeEnd); // TODO: need to incorporate stride?
- }
- const uint32_t relevantBufferSize = relevantBufferEnd - relevantBufferOffset;
-
- // FIXME: This only works when all vertex attributes are in one buffer
- std::vector<uint8_t> vertexBufferData;
- vertexBufferData.resize(relevantBufferSize);
- {
- const void *const ptr = ((char*)vertexBuffer.data.data()) + relevantBufferOffset;
- if (!memcpy(vertexBufferData.data(), ptr, relevantBufferSize)) {
- vkcv_log(LogLevel::ERROR, "Copying vertex buffer data");
- return 0;
- }
- }
-
- // make vertex attributes relative to copied section
- for (auto &attribute : vertexAttributes) {
- attribute.offset -= relevantBufferOffset;
- }
-
- const size_t numVertexGroups = objectMesh.primitives.size();
- vertexGroups.reserve(numVertexGroups);
-
- vertexGroups.push_back({
- static_cast<PrimitiveMode>(objectPrimitive.mode),
- sceneObjects.accessors[objectPrimitive.indices].count,
- posAccessor.count,
- {indexType, indexBufferData},
- {vertexBufferData, vertexAttributes},
- {posAccessor.min[0], posAccessor.min[1], posAccessor.min[2]},
- {posAccessor.max[0], posAccessor.max[1], posAccessor.max[2]},
- static_cast<uint8_t>(objectPrimitive.material)
- });
-
- vertexGroupsIndices.push_back(groupCount);
- groupCount++;
- }
-
- mesh.name = sceneObjects.meshes[i].name;
- mesh.vertexGroups = vertexGroupsIndices;
- meshes.push_back(mesh);
- }
-
- for(int m = 0; m < sceneObjects.nodes.size(); m++) {
- meshes[sceneObjects.nodes[m].mesh].modelMatrix = computeModelMatrix(sceneObjects.nodes[m].translation,
- sceneObjects.nodes[m].scale,
- sceneObjects.nodes[m].rotation,
- sceneObjects.nodes[m].matrix);
- }
-
- if (sceneObjects.textures.size() > 0){
- textures.reserve(sceneObjects.textures.size());
-
- for(int k = 0; k < sceneObjects.textures.size(); k++){
- const fx::gltf::Texture &tex = sceneObjects.textures[k];
- const fx::gltf::Image &img = sceneObjects.images[tex.source];
- std::string img_uri = dir + "/" + img.uri;
- int w, h, c;
- uint8_t *data = stbi_load(img_uri.c_str(), &w, &h, &c, 4);
- c = 4; // FIXME hardcoded to always have RGBA channel layout
- if (!data) {
- vkcv_log(LogLevel::ERROR, "Loading texture image data.")
- return 0;
- }
- const size_t byteLen = w * h * c;
-
- std::vector<uint8_t> imgdata;
- imgdata.resize(byteLen);
- if (!memcpy(imgdata.data(), data, byteLen)) {
- vkcv_log(LogLevel::ERROR, "Copying texture image data")
- free(data);
- return 0;
- }
- free(data);
+ /**
+ * This function fills the array of vertex attributes of a VertexGroup (usually
+ * part of a vkcv::asset::Mesh) object based on the description of attributes
+ * for a fx::gltf::Primitive.
+ *
+ * @param src The description of attribute objects from the fx-gltf library
+ * @param gltf The main glTF document
+ * @param dst The array of vertex attributes stored in an asset::Mesh object
+ * @return ASSET_ERROR when at least one VertexAttribute could not be
+ * constructed properly, otherwise ASSET_SUCCESS
+ */
+ static int loadVertexAttributes(const fx::gltf::Attributes &src,
+ const std::vector<fx::gltf::Accessor> &accessors,
+ const std::vector<fx::gltf::BufferView> &bufferViews,
+ std::vector<VertexAttribute> &dst) {
+ for (const auto &attrib : src) {
+ VertexAttribute att;
+
+ if (attrib.first == "POSITION") {
+ att.type = PrimitiveType::POSITION;
+ } else if (attrib.first == "NORMAL") {
+ att.type = PrimitiveType::NORMAL;
+ } else if (attrib.first == "TANGENT") {
+ att.type = PrimitiveType::TANGENT;
+ } else if (attrib.first == "TEXCOORD_0") {
+ att.type = PrimitiveType::TEXCOORD_0;
+ } else if (attrib.first == "TEXCOORD_1") {
+ att.type = PrimitiveType::TEXCOORD_1;
+ } else if (attrib.first == "COLOR_0") {
+ att.type = PrimitiveType::COLOR_0;
+ } else if (attrib.first == "COLOR_1") {
+ att.type = PrimitiveType::COLOR_1;
+ } else if (attrib.first == "JOINTS_0") {
+ att.type = PrimitiveType::JOINTS_0;
+ } else if (attrib.first == "WEIGHTS_0") {
+ att.type = PrimitiveType::WEIGHTS_0;
+ } else {
+ att.type = PrimitiveType::UNDEFINED;
+ }
+
+ if (att.type != PrimitiveType::UNDEFINED) {
+ const fx::gltf::Accessor &accessor = accessors[attrib.second];
+ const fx::gltf::BufferView &buf = bufferViews[accessor.bufferView];
+
+ att.offset = buf.byteOffset;
+ att.length = buf.byteLength;
+ att.stride = buf.byteStride;
+ att.componentType = static_cast<ComponentType>(accessor.componentType);
+ att.componentCount = getComponentCount(accessor.type);
+
+ /* Assume tightly packed stride as not explicitly provided */
+ if (att.stride == 0) {
+ att.stride = att.componentCount * getComponentSize(att.componentType);
+ }
+ }
+
+ if ((att.type == PrimitiveType::UNDEFINED) ||
+ (att.componentCount == 0)) {
+ return ASSET_ERROR;
+ }
+
+ dst.push_back(att);
+ }
+
+ return ASSET_SUCCESS;
+ }
- textures.push_back({
- 0,
- static_cast<uint8_t>(c),
- static_cast<uint16_t>(w),
- static_cast<uint16_t>(h),
- imgdata
- });
+ /**
+ * This function calculates the modelMatrix out of the data given in the gltf file.
+ * It also checks, whether a modelMatrix was given.
+ *
+ * @param translation possible translation vector (default 0,0,0)
+ * @param scale possible scale vector (default 1,1,1)
+ * @param rotation possible rotation, given in quaternion (default 0,0,0,1)
+ * @param matrix possible modelmatrix (default identity)
+ * @return model Matrix as an array of floats
+ */
+ static std::array<float, 16> calculateModelMatrix(const std::array<float, 3>& translation,
+ const std::array<float, 3>& scale,
+ const std::array<float, 4>& rotation,
+ const std::array<float, 16>& matrix){
+ std::array<float, 16> modelMatrix = {
+ 1,0,0,0,
+ 0,1,0,0,
+ 0,0,1,0,
+ 0,0,0,1
+ };
+
+ if (matrix != modelMatrix){
+ return matrix;
+ } else {
+ // translation
+ modelMatrix[3] = translation[0];
+ modelMatrix[7] = translation[1];
+ modelMatrix[11] = translation[2];
+
+ // rotation and scale
+ auto a = rotation[0];
+ auto q1 = rotation[1];
+ auto q2 = rotation[2];
+ auto q3 = rotation[3];
+
+ modelMatrix[0] = (2 * (a * a + q1 * q1) - 1) * scale[0];
+ modelMatrix[1] = (2 * (q1 * q2 - a * q3)) * scale[1];
+ modelMatrix[2] = (2 * (q1 * q3 + a * q2)) * scale[2];
+
+ modelMatrix[4] = (2 * (q1 * q2 + a * q3)) * scale[0];
+ modelMatrix[5] = (2 * (a * a + q2 * q2) - 1) * scale[1];
+ modelMatrix[6] = (2 * (q2 * q3 - a * q1)) * scale[2];
+
+ modelMatrix[8] = (2 * (q1 * q3 - a * q2)) * scale[0];
+ modelMatrix[9] = (2 * (q2 * q3 + a * q1)) * scale[1];
+ modelMatrix[10] = (2 * (a * a + q3 * q3) - 1) * scale[2];
+
+ // flip y, because GLTF uses y up, but vulkan -y up
+ modelMatrix[5] *= -1;
+
+ return modelMatrix;
+ }
+ }
- }
- }
+ bool Material::hasTexture(const PBRTextureTarget target) const {
+ return textureMask & bitflag(target);
+ }
- if (sceneObjects.materials.size() > 0){
- materials.reserve(sceneObjects.materials.size());
+ /**
+ * This function translates a given fx-gltf-sampler-wrapping-mode-enum to its vulkan sampler-adress-mode counterpart.
+ * @param mode: wrapping mode of a sampler given as fx-gltf-enum
+ * @return int vulkan-enum representing the same wrapping mode
+ */
+ static int translateSamplerMode(const fx::gltf::Sampler::WrappingMode mode) {
+ switch (mode) {
+ case fx::gltf::Sampler::WrappingMode::ClampToEdge:
+ return VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
+ case fx::gltf::Sampler::WrappingMode::MirroredRepeat:
+ return VK_SAMPLER_ADDRESS_MODE_MIRRORED_REPEAT;
+ case fx::gltf::Sampler::WrappingMode::Repeat:
+ default:
+ return VK_SAMPLER_ADDRESS_MODE_REPEAT;
+ }
+ }
- for (int l = 0; l < sceneObjects.materials.size(); l++){
- fx::gltf::Material material = sceneObjects.materials[l];
- // TODO I think we shouldn't set the index for a texture target if
- // it isn't defined. So we need to test first if there is a normal
- // texture before assigning material.normalTexture.index.
- // About the bitmask: If a normal texture is there, modify the
- // materials textureMask like this:
- // mat.textureMask |= bitflag(asset::normal);
- materials.push_back({
- 0,
- material.pbrMetallicRoughness.baseColorTexture.index,
- material.pbrMetallicRoughness.metallicRoughnessTexture.index,
- material.normalTexture.index,
- material.occlusionTexture.index,
- material.emissiveTexture.index,
- {
- material.pbrMetallicRoughness.baseColorFactor[0],
- material.pbrMetallicRoughness.baseColorFactor[1],
- material.pbrMetallicRoughness.baseColorFactor[2],
- material.pbrMetallicRoughness.baseColorFactor[3]
- },
- material.pbrMetallicRoughness.metallicFactor,
- material.pbrMetallicRoughness.roughnessFactor,
- material.normalTexture.scale,
- material.occlusionTexture.strength,
- {
- material.emissiveFactor[0],
- material.emissiveFactor[1],
- material.emissiveFactor[2]
- }
+ /**
+ * If the glTF doesn't define samplers, we use the defaults defined by fx-gltf.
+ * The following are details about the glTF/OpenGL to Vulkan translation.
+ * magFilter (VkFilter?):
+ * GL_NEAREST -> VK_FILTER_NEAREST
+ * GL_LINEAR -> VK_FILTER_LINEAR
+ * minFilter (VkFilter?):
+ * mipmapMode (VkSamplerMipmapMode?):
+ * Vulkans minFilter and mipmapMode combined correspond to OpenGLs
+ * GL_minFilter_MIPMAP_mipmapMode:
+ * GL_NEAREST_MIPMAP_NEAREST:
+ * minFilter=VK_FILTER_NEAREST
+ * mipmapMode=VK_SAMPLER_MIPMAP_MODE_NEAREST
+ * GL_LINEAR_MIPMAP_NEAREST:
+ * minFilter=VK_FILTER_LINEAR
+ * mipmapMode=VK_SAMPLER_MIPMAP_MODE_NEAREST
+ * GL_NEAREST_MIPMAP_LINEAR:
+ * minFilter=VK_FILTER_NEAREST
+ * mipmapMode=VK_SAMPLER_MIPMAP_MODE_LINEAR
+ * GL_LINEAR_MIPMAP_LINEAR:
+ * minFilter=VK_FILTER_LINEAR
+ * mipmapMode=VK_SAMPLER_MIPMAP_MODE_LINEAR
+ * The modes of GL_LINEAR and GL_NEAREST have to be emulated using
+ * mipmapMode=VK_SAMPLER_MIPMAP_MODE_NEAREST with specific minLOD and maxLOD:
+ * GL_LINEAR:
+ * minFilter=VK_FILTER_LINEAR
+ * mipmapMode=VK_SAMPLER_MIPMAP_MODE_NEAREST
+ * minLOD=0, maxLOD=0.25
+ * GL_NEAREST:
+ * minFilter=VK_FILTER_NEAREST
+ * mipmapMode=VK_SAMPLER_MIPMAP_MODE_NEAREST
+ * minLOD=0, maxLOD=0.25
+ * Setting maxLOD=0 causes magnification to always be performed (using
+ * the defined magFilter), this may be valid if the min- and magFilter
+ * are equal, otherwise it won't be the expected behaviour from OpenGL
+ * and glTF; instead using maxLod=0.25 allows the minFilter to be
+ * performed while still always rounding to the base level.
+ * With other modes, minLOD and maxLOD default to:
+ * minLOD=0
+ * maxLOD=VK_LOD_CLAMP_NONE
+ * wrapping:
+ * gltf has wrapS, wrapT with {clampToEdge, MirroredRepeat, Repeat} while
+ * Vulkan has addressModeU, addressModeV, addressModeW with values
+ * VK_SAMPLER_ADDRESS_MODE_{REPEAT,MIRRORED_REPEAT,CLAMP_TO_EDGE,
+ * CAMP_TO_BORDER,MIRROR_CLAMP_TO_EDGE}
+ * Translation from glTF to Vulkan is straight forward for the 3 existing
+ * modes, default is repeat, the other modes aren't available.
+ */
+ static vkcv::asset::Sampler loadSampler(const fx::gltf::Sampler &src) {
+ Sampler dst;
+
+ dst.minLOD = 0;
+ dst.maxLOD = VK_LOD_CLAMP_NONE;
+
+ switch (src.minFilter) {
+ case fx::gltf::Sampler::MinFilter::None:
+ case fx::gltf::Sampler::MinFilter::Nearest:
+ dst.minFilter = VK_FILTER_NEAREST;
+ dst.mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST;
+ dst.maxLOD = 0.25;
+ break;
+ case fx::gltf::Sampler::MinFilter::Linear:
+ dst.minFilter = VK_FILTER_LINEAR;
+ dst.mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST;
+ dst.maxLOD = 0.25;
+ break;
+ case fx::gltf::Sampler::MinFilter::NearestMipMapNearest:
+ dst.minFilter = VK_FILTER_NEAREST;
+ dst.mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST;
+ break;
+ case fx::gltf::Sampler::MinFilter::LinearMipMapNearest:
+ dst.minFilter = VK_FILTER_LINEAR;
+ dst.mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST;
+ break;
+ case fx::gltf::Sampler::MinFilter::NearestMipMapLinear:
+ dst.minFilter = VK_FILTER_NEAREST;
+ dst.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
+ break;
+ case fx::gltf::Sampler::MinFilter::LinearMipMapLinear:
+ dst.minFilter = VK_FILTER_LINEAR;
+ dst.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
+ break;
+ default:
+ break;
+ }
+
+ switch (src.magFilter) {
+ case fx::gltf::Sampler::MagFilter::None:
+ case fx::gltf::Sampler::MagFilter::Nearest:
+ dst.magFilter = VK_FILTER_NEAREST;
+ break;
+ case fx::gltf::Sampler::MagFilter::Linear:
+ dst.magFilter = VK_FILTER_LINEAR;
+ break;
+ default:
+ break;
+ }
+
+ dst.addressModeU = translateSamplerMode(src.wrapS);
+ dst.addressModeV = translateSamplerMode(src.wrapT);
+
+ // There is no information about wrapping for a third axis in glTF and
+ // we have to hardcode this value.
+ dst.addressModeW = VK_SAMPLER_ADDRESS_MODE_REPEAT;
+
+ return dst;
+ }
- });
- }
- }
+ /**
+ * Initializes vertex groups of a Mesh, including copying the data to
+ * index- and vertex-buffers.
+ */
+ static int loadVertexGroups(const fx::gltf::Mesh &objectMesh,
+ const fx::gltf::Document &sceneObjects,
+ Scene &scene, Mesh &mesh) {
+ mesh.vertexGroups.reserve(objectMesh.primitives.size());
+
+ for (const auto &objectPrimitive : objectMesh.primitives) {
+ VertexGroup vertexGroup;
+
+ vertexGroup.vertexBuffer.attributes.reserve(
+ objectPrimitive.attributes.size()
+ );
+
+ if (ASSET_SUCCESS != loadVertexAttributes(
+ objectPrimitive.attributes,
+ sceneObjects.accessors,
+ sceneObjects.bufferViews,
+ vertexGroup.vertexBuffer.attributes)) {
+ vkcv_log(LogLevel::ERROR, "Failed to get vertex attributes of '%s'",
+ mesh.name.c_str());
+ return ASSET_ERROR;
+ }
+
+ // The accessor for the position attribute is used for
+ // 1) getting the vertex buffer view which is only needed to get
+ // the vertex buffer
+ // 2) getting the vertex count for the VertexGroup
+ // 3) getting the min/max of the bounding box for the VertexGroup
+ fx::gltf::Accessor posAccessor;
+ bool noPosition = true;
+
+ for (auto const& attrib : objectPrimitive.attributes) {
+ if (attrib.first == "POSITION") {
+ posAccessor = sceneObjects.accessors[attrib.second];
+ noPosition = false;
+ break;
+ }
+ }
+
+ if (noPosition) {
+ vkcv_log(LogLevel::ERROR, "Position attribute not found from '%s'",
+ mesh.name.c_str());
+ return ASSET_ERROR;
+ }
+
+ const fx::gltf::Accessor& indexAccessor = sceneObjects.accessors[objectPrimitive.indices];
+
+ int indexBufferURI;
+ if (objectPrimitive.indices >= 0) { // if there is no index buffer, -1 is returned from fx-gltf
+ const fx::gltf::BufferView& indexBufferView = sceneObjects.bufferViews[indexAccessor.bufferView];
+ const fx::gltf::Buffer& indexBuffer = sceneObjects.buffers[indexBufferView.buffer];
+
+ // Because the buffers are already preloaded into the memory by the gltf-library,
+ // it makes no sense to load them later on manually again into memory.
+ vertexGroup.indexBuffer.data.resize(indexBufferView.byteLength);
+ memcpy(vertexGroup.indexBuffer.data.data(),
+ indexBuffer.data.data() + indexBufferView.byteOffset,
+ indexBufferView.byteLength);
+ } else {
+ indexBufferURI = -1;
+ }
+
+ vertexGroup.indexBuffer.type = getIndexType(indexAccessor.componentType);
+
+ if (IndexType::UNDEFINED == vertexGroup.indexBuffer.type) {
+ vkcv_log(LogLevel::ERROR, "Index Type undefined or not supported.");
+ return ASSET_ERROR;
+ }
+
+ if (posAccessor.bufferView >= sceneObjects.bufferViews.size()) {
+ vkcv_log(LogLevel::ERROR, "Access to bufferView out of bounds: %lu",
+ posAccessor.bufferView);
+ return ASSET_ERROR;
+ }
+ const fx::gltf::BufferView& vertexBufferView = sceneObjects.bufferViews[posAccessor.bufferView];
+ if (vertexBufferView.buffer >= sceneObjects.buffers.size()) {
+ vkcv_log(LogLevel::ERROR, "Access to buffer out of bounds: %lu",
+ vertexBufferView.buffer);
+ return ASSET_ERROR;
+ }
+ const fx::gltf::Buffer& vertexBuffer = sceneObjects.buffers[vertexBufferView.buffer];
+
+ // only copy relevant part of vertex data
+ uint32_t relevantBufferOffset = std::numeric_limits<uint32_t>::max();
+ uint32_t relevantBufferEnd = 0;
+
+ for (const auto& attribute : vertexGroup.vertexBuffer.attributes) {
+ relevantBufferOffset = std::min(attribute.offset, relevantBufferOffset);
+ relevantBufferEnd = std::max(relevantBufferEnd, attribute.offset + attribute.length);
+ }
+
+ const uint32_t relevantBufferSize = relevantBufferEnd - relevantBufferOffset;
+
+ vertexGroup.vertexBuffer.data.resize(relevantBufferSize);
+ memcpy(vertexGroup.vertexBuffer.data.data(),
+ vertexBuffer.data.data() + relevantBufferOffset,
+ relevantBufferSize);
+
+ // make vertex attributes relative to copied section
+ for (auto& attribute : vertexGroup.vertexBuffer.attributes) {
+ attribute.offset -= relevantBufferOffset;
+ }
+
+ vertexGroup.mode = static_cast<PrimitiveMode>(objectPrimitive.mode);
+ vertexGroup.numIndices = sceneObjects.accessors[objectPrimitive.indices].count;
+ vertexGroup.numVertices = posAccessor.count;
+
+ memcpy(&(vertexGroup.min), posAccessor.min.data(), sizeof(vertexGroup.min));
+ memcpy(&(vertexGroup.max), posAccessor.max.data(), sizeof(vertexGroup.max));
+
+ vertexGroup.materialIndex = static_cast<uint8_t>(objectPrimitive.material);
+
+ mesh.vertexGroups.push_back(static_cast<int>(scene.vertexGroups.size()));
+ scene.vertexGroups.push_back(vertexGroup);
+ }
+
+ return ASSET_SUCCESS;
+ }
- scene = {
- meshes,
- vertexGroups,
- materials,
- textures,
- samplers
- };
+ /**
+ * Returns an integer with specific bits set corresponding to the
+ * textures that appear in the given material. This mask is used in the
+ * vkcv::asset::Material struct and can be tested via the hasTexture
+ * method.
+ */
+ static uint16_t generateTextureMask(fx::gltf::Material &material) {
+ uint16_t textureMask = 0;
+
+ if (material.pbrMetallicRoughness.baseColorTexture.index >= 0) {
+ textureMask |= bitflag(asset::PBRTextureTarget::baseColor);
+ }
+ if (material.pbrMetallicRoughness.metallicRoughnessTexture.index >= 0) {
+ textureMask |= bitflag(asset::PBRTextureTarget::metalRough);
+ }
+ if (material.normalTexture.index >= 0) {
+ textureMask |= bitflag(asset::PBRTextureTarget::normal);
+ }
+ if (material.occlusionTexture.index >= 0) {
+ textureMask |= bitflag(asset::PBRTextureTarget::occlusion);
+ }
+ if (material.emissiveTexture.index >= 0) {
+ textureMask |= bitflag(asset::PBRTextureTarget::emissive);
+ }
+
+ return textureMask;
+ }
- return 1;
-}
+ int probeScene(const std::filesystem::path& path, Scene& scene) {
+ fx::gltf::Document sceneObjects;
+
+ try {
+ if (path.extension() == ".glb") {
+ sceneObjects = fx::gltf::LoadFromBinary(path.string());
+ } else {
+ sceneObjects = fx::gltf::LoadFromText(path.string());
+ }
+ } catch (const std::system_error& err) {
+ recurseExceptionPrint(err, path.string());
+ return ASSET_ERROR;
+ } catch (const std::exception& e) {
+ recurseExceptionPrint(e, path.string());
+ return ASSET_ERROR;
+ }
+
+ const auto directory = path.parent_path();
+
+ scene.meshes.clear();
+ scene.vertexGroups.clear();
+ scene.materials.clear();
+ scene.textures.clear();
+ scene.samplers.clear();
+
+ // file has to contain at least one mesh
+ if (sceneObjects.meshes.empty()) {
+ vkcv_log(LogLevel::ERROR, "No meshes found! (%s)", path.c_str());
+ return ASSET_ERROR;
+ } else {
+ scene.meshes.reserve(sceneObjects.meshes.size());
+
+ for (size_t i = 0; i < sceneObjects.meshes.size(); i++) {
+ Mesh mesh;
+ mesh.name = sceneObjects.meshes[i].name;
+
+ if (loadVertexGroups(sceneObjects.meshes[i], sceneObjects, scene, mesh) != ASSET_SUCCESS) {
+ vkcv_log(LogLevel::ERROR, "Failed to load vertex groups of '%s'! (%s)",
+ mesh.name.c_str(), path.c_str());
+ return ASSET_ERROR;
+ }
+
+ scene.meshes.push_back(mesh);
+ }
+
+ // This only works if the node has a mesh and it only loads the meshes and ignores cameras and lights
+ for (const auto& node : sceneObjects.nodes) {
+ if ((node.mesh >= 0) && (node.mesh < scene.meshes.size())) {
+ scene.meshes[node.mesh].modelMatrix = calculateModelMatrix(
+ node.translation,
+ node.scale,
+ node.rotation,
+ node.matrix
+ );
+ }
+ }
+ }
+
+ if (sceneObjects.samplers.empty()) {
+ vkcv_log(LogLevel::WARNING, "No samplers found! (%s)", path.c_str());
+ } else {
+ scene.samplers.reserve(sceneObjects.samplers.size());
+
+ for (const auto &samplerObject : sceneObjects.samplers) {
+ scene.samplers.push_back(loadSampler(samplerObject));
+ }
+ }
+
+ if (sceneObjects.textures.empty()) {
+ vkcv_log(LogLevel::WARNING, "No textures found! (%s)", path.c_str());
+ } else {
+ scene.textures.reserve(sceneObjects.textures.size());
+
+ for (const auto& textureObject : sceneObjects.textures) {
+ Texture texture;
+
+ if (textureObject.sampler < 0) {
+ texture.sampler = -1;
+ } else
+ if (static_cast<size_t>(textureObject.sampler) >= scene.samplers.size()) {
+ vkcv_log(LogLevel::ERROR, "Sampler of texture '%s' missing (%s) %d",
+ textureObject.name.c_str(), path.c_str());
+ return ASSET_ERROR;
+ } else {
+ texture.sampler = textureObject.sampler;
+ }
+
+ if ((textureObject.source < 0) ||
+ (static_cast<size_t>(textureObject.source) >= sceneObjects.images.size())) {
+ vkcv_log(LogLevel::ERROR, "Failed to load texture '%s' (%s)",
+ textureObject.name.c_str(), path.c_str());
+ return ASSET_ERROR;
+ }
+
+ const auto& image = sceneObjects.images[textureObject.source];
+
+ if (image.uri.empty()) {
+ const fx::gltf::BufferView bufferView = sceneObjects.bufferViews[image.bufferView];
+
+ texture.path.clear();
+ texture.data.resize(bufferView.byteLength);
+ memcpy(texture.data.data(),
+ sceneObjects.buffers[bufferView.buffer].data.data() + bufferView.byteOffset,
+ bufferView.byteLength);
+ } else {
+ texture.path = directory / image.uri;
+ }
+
+ scene.textures.push_back(texture);
+ }
+ }
+
+ if (sceneObjects.materials.empty()) {
+ vkcv_log(LogLevel::WARNING, "No materials found! (%s)", path.c_str());
+ } else {
+ scene.materials.reserve(sceneObjects.materials.size());
+
+ for (auto material : sceneObjects.materials) {
+ scene.materials.push_back({
+ generateTextureMask(material),
+ material.pbrMetallicRoughness.baseColorTexture.index,
+ material.pbrMetallicRoughness.metallicRoughnessTexture.index,
+ material.normalTexture.index,
+ material.occlusionTexture.index,
+ material.emissiveTexture.index,
+ {
+ material.pbrMetallicRoughness.baseColorFactor[0],
+ material.pbrMetallicRoughness.baseColorFactor[1],
+ material.pbrMetallicRoughness.baseColorFactor[2],
+ material.pbrMetallicRoughness.baseColorFactor[3]
+ },
+ material.pbrMetallicRoughness.metallicFactor,
+ material.pbrMetallicRoughness.roughnessFactor,
+ material.normalTexture.scale,
+ material.occlusionTexture.strength,
+ {
+ material.emissiveFactor[0],
+ material.emissiveFactor[1],
+ material.emissiveFactor[2]
+ }
+ });
+ }
+ }
+
+ return ASSET_SUCCESS;
+ }
+
+ /**
+ * Loads and decodes the textures data based on the textures file path.
+ * The path member is the only one that has to be initialized before
+ * calling this function, the others (width, height, channels, data)
+ * are set by this function and the sampler is of no concern here.
+ */
+ static int loadTextureData(Texture& texture) {
+ if ((texture.width > 0) && (texture.height > 0) && (texture.channels > 0) &&
+ (!texture.data.empty())) {
+ return ASSET_SUCCESS; // Texture data was loaded already!
+ }
+
+ uint8_t* data;
+
+ if (texture.path.empty()) {
+ data = stbi_load_from_memory(
+ reinterpret_cast<uint8_t*>(texture.data.data()),
+ static_cast<int>(texture.data.size()),
+ &texture.width,
+ &texture.height,
+ &texture.channels, 4
+ );
+ } else {
+ data = stbi_load(
+ texture.path.string().c_str(),
+ &texture.width,
+ &texture.height,
+ &texture.channels, 4
+ );
+ }
+
+ if (!data) {
+ vkcv_log(LogLevel::ERROR, "Texture could not be loaded from '%s'",
+ texture.path.c_str());
+
+ texture.width = 0;
+ texture.height = 0;
+ texture.channels = 0;
+ return ASSET_ERROR;
+ }
+
+ texture.data.resize(texture.width * texture.height * 4);
+ memcpy(texture.data.data(), data, texture.data.size());
+ stbi_image_free(data);
+
+ return ASSET_SUCCESS;
+ }
-TextureData loadTexture(const std::filesystem::path& path) {
- TextureData texture;
-
- uint8_t* data = stbi_load(path.string().c_str(), &texture.width, &texture.height, &texture.componentCount, 4);
-
- if (!data) {
- vkcv_log(LogLevel::ERROR, "Texture could not be loaded from '%s'", path.c_str());
-
- texture.width = 0;
- texture.height = 0;
- texture.componentCount = 0;
- return texture;
- }
-
- texture.data.resize(texture.width * texture.height * 4);
- memcpy(texture.data.data(), data, texture.data.size());
- return texture;
-}
+ int loadMesh(Scene &scene, int index) {
+ if ((index < 0) || (static_cast<size_t>(index) >= scene.meshes.size())) {
+ vkcv_log(LogLevel::ERROR, "Mesh index out of range: %d", index);
+ return ASSET_ERROR;
+ }
+
+ const Mesh &mesh = scene.meshes[index];
+
+ for (const auto& vg : mesh.vertexGroups) {
+ const VertexGroup &vertexGroup = scene.vertexGroups[vg];
+ const Material& material = scene.materials[vertexGroup.materialIndex];
+
+ if (material.hasTexture(PBRTextureTarget::baseColor)) {
+ const int result = loadTextureData(scene.textures[material.baseColor]);
+ if (ASSET_SUCCESS != result) {
+ vkcv_log(LogLevel::ERROR, "Failed loading baseColor texture of mesh '%s'",
+ mesh.name.c_str())
+ return result;
+ }
+ }
+
+ if (material.hasTexture(PBRTextureTarget::metalRough)) {
+ const int result = loadTextureData(scene.textures[material.metalRough]);
+ if (ASSET_SUCCESS != result) {
+ vkcv_log(LogLevel::ERROR, "Failed loading metalRough texture of mesh '%s'",
+ mesh.name.c_str())
+ return result;
+ }
+ }
+
+ if (material.hasTexture(PBRTextureTarget::normal)) {
+ const int result = loadTextureData(scene.textures[material.normal]);
+ if (ASSET_SUCCESS != result) {
+ vkcv_log(LogLevel::ERROR, "Failed loading normal texture of mesh '%s'",
+ mesh.name.c_str())
+ return result;
+ }
+ }
+
+ if (material.hasTexture(PBRTextureTarget::occlusion)) {
+ const int result = loadTextureData(scene.textures[material.occlusion]);
+ if (ASSET_SUCCESS != result) {
+ vkcv_log(LogLevel::ERROR, "Failed loading occlusion texture of mesh '%s'",
+ mesh.name.c_str())
+ return result;
+ }
+ }
+
+ if (material.hasTexture(PBRTextureTarget::emissive)) {
+ const int result = loadTextureData(scene.textures[material.emissive]);
+ if (ASSET_SUCCESS != result) {
+ vkcv_log(LogLevel::ERROR, "Failed loading emissive texture of mesh '%s'",
+ mesh.name.c_str())
+ return result;
+ }
+ }
+ }
+
+ return ASSET_SUCCESS;
+ }
+
+ int loadScene(const std::filesystem::path &path, Scene &scene) {
+ int result = probeScene(path, scene);
+
+ if (result != ASSET_SUCCESS) {
+ vkcv_log(LogLevel::ERROR, "Loading scene failed '%s'",
+ path.c_str());
+ return result;
+ }
+
+ for (size_t i = 0; i < scene.meshes.size(); i++) {
+ result = loadMesh(scene, static_cast<int>(i));
+
+ if (result != ASSET_SUCCESS) {
+ vkcv_log(LogLevel::ERROR, "Loading mesh with index %d failed '%s'",
+ static_cast<int>(i), path.c_str());
+ return result;
+ }
+ }
+
+ return ASSET_SUCCESS;
+ }
+
+ Texture loadTexture(const std::filesystem::path& path) {
+ Texture texture;
+ texture.path = path;
+ texture.sampler = -1;
+ if (loadTextureData(texture) != ASSET_SUCCESS) {
+ texture.path.clear();
+ texture.w = texture.h = texture.channels = 0;
+ texture.data.clear();
+ }
+ return texture;
+ }
}
diff --git a/modules/camera/include/vkcv/camera/PilotCameraController.hpp b/modules/camera/include/vkcv/camera/PilotCameraController.hpp
index 2b64cdc0dd3045714aba7b3b7c6241af2337c706..67388818a59b66775598e9d4257fa4c36646332a 100644
--- a/modules/camera/include/vkcv/camera/PilotCameraController.hpp
+++ b/modules/camera/include/vkcv/camera/PilotCameraController.hpp
@@ -29,42 +29,6 @@ namespace vkcv::camera {
float m_fov_min;
float m_fov_max;
- /**
- * @brief Indicates forward movement of the camera depending on the performed @p action.
- * @param[in] action The performed action.
- */
- void moveForward(int action);
-
- /**
- * @brief Indicates backward movement of the camera depending on the performed @p action.
- * @param[in] action The performed action.
- */
- void moveBackward(int action);
-
- /**
- * @brief Indicates left movement of the camera depending on the performed @p action.
- * @param[in] action The performed action.
- */
- void moveLeft(int action);
-
- /**
- * @brief Indicates right movement of the camera depending on the performed @p action.
- * @param[in] action The performed action.
- */
- void moveRight(int action);
-
- /**
- * @brief Indicates upward movement of the camera depending on the performed @p action.
- * @param[in] action The performed action.
- */
- void moveUpward(int action);
-
- /**
- * @brief Indicates downward movement of the camera depending on the performed @p action.
- * @param[in] action The performed action.
- */
- void moveDownward(int action);
-
public:
/**
diff --git a/modules/camera/src/vkcv/camera/CameraManager.cpp b/modules/camera/src/vkcv/camera/CameraManager.cpp
index f129f3a248325957cb56470e2547a0146bc7c971..c8aa4f7e0e493a2aaf5bfd6d93768e169cd255b9 100644
--- a/modules/camera/src/vkcv/camera/CameraManager.cpp
+++ b/modules/camera/src/vkcv/camera/CameraManager.cpp
@@ -52,8 +52,8 @@ namespace vkcv::camera {
}
void CameraManager::mouseMoveCallback(double x, double y){
- auto xoffset = static_cast<float>(x - m_lastX);
- auto yoffset = static_cast<float>(y - m_lastY);
+ auto xoffset = static_cast<float>(x - m_lastX) / m_window.getWidth();
+ auto yoffset = static_cast<float>(y - m_lastY) / m_window.getHeight();
m_lastX = x;
m_lastY = y;
getActiveController().mouseMoveCallback(xoffset, yoffset, getActiveCamera());
diff --git a/modules/camera/src/vkcv/camera/PilotCameraController.cpp b/modules/camera/src/vkcv/camera/PilotCameraController.cpp
index 28ef7c6943428078589047497fc2d3b44fde5fd7..1c7bb12679e57c9221465452f2fc41a539b6b2a0 100644
--- a/modules/camera/src/vkcv/camera/PilotCameraController.cpp
+++ b/modules/camera/src/vkcv/camera/PilotCameraController.cpp
@@ -50,11 +50,11 @@ namespace vkcv::camera {
}
// handle yaw rotation
- float yaw = camera.getYaw() + static_cast<float>(xOffset) * m_cameraSpeed;
+ float yaw = camera.getYaw() + static_cast<float>(xOffset) * 90.0f * m_cameraSpeed;
camera.setYaw(yaw);
// handle pitch rotation
- float pitch = camera.getPitch() - static_cast<float>(yOffset) * m_cameraSpeed;
+ float pitch = camera.getPitch() - static_cast<float>(yOffset) * 90.0f * m_cameraSpeed;
pitch = glm::clamp(pitch, -89.0f, 89.0f);
camera.setPitch(pitch);
}
@@ -82,22 +82,22 @@ namespace vkcv::camera {
void PilotCameraController::keyCallback(int key, int scancode, int action, int mods, Camera &camera) {
switch (key) {
case GLFW_KEY_W:
- moveForward(action);
+ m_forward = static_cast<bool>(action);
break;
case GLFW_KEY_S:
- moveBackward(action);
+ m_backward = static_cast<bool>(action);
break;
case GLFW_KEY_A:
- moveLeft(action);
+ m_left = static_cast<bool>(action);
break;
case GLFW_KEY_D:
- moveRight(action);
+ m_right = static_cast<bool>(action);
break;
case GLFW_KEY_E:
- moveUpward(action);
+ m_upward = static_cast<bool>(action);
break;
case GLFW_KEY_Q:
- moveDownward(action);
+ m_downward = static_cast<bool>(action);
break;
default:
break;
@@ -109,31 +109,25 @@ namespace vkcv::camera {
}
void PilotCameraController::mouseMoveCallback(double xoffset, double yoffset, Camera &camera) {
- if(!m_rotationActive){
- return;
- }
-
- float sensitivity = 0.05f;
- xoffset *= sensitivity;
- yoffset *= sensitivity;
+ xoffset *= static_cast<float>(m_rotationActive);
+ yoffset *= static_cast<float>(m_rotationActive);
panView(xoffset , yoffset, camera);
}
void PilotCameraController::mouseButtonCallback(int button, int action, int mods, Camera &camera) {
- if(button == GLFW_MOUSE_BUTTON_2 && m_rotationActive == false && action == GLFW_PRESS){
- m_rotationActive = true;
- }
- else if(button == GLFW_MOUSE_BUTTON_2 && m_rotationActive == true && action == GLFW_RELEASE){
- m_rotationActive = false;
- }
+ if (button == GLFW_MOUSE_BUTTON_2) {
+ if (m_rotationActive != (action == GLFW_PRESS)) {
+ m_rotationActive = (action == GLFW_PRESS);
+ }
+ }
}
void PilotCameraController::gamepadCallback(int gamepadIndex, Camera &camera, double frametime) {
GLFWgamepadstate gamepadState;
glfwGetGamepadState(gamepadIndex, &gamepadState);
- float sensitivity = 100.0f;
+ float sensitivity = 1.0f;
double threshold = 0.1;
// handle rotations
@@ -162,29 +156,4 @@ namespace vkcv::camera {
* -copysign(1.0, stickLeftX);
}
-
- void PilotCameraController::moveForward(int action){
- m_forward = static_cast<bool>(action);
- }
-
- void PilotCameraController::moveBackward(int action){
- m_backward = static_cast<bool>(action);
- }
-
- void PilotCameraController::moveLeft(int action){
- m_left = static_cast<bool>(action);
- }
-
- void PilotCameraController::moveRight(int action){
- m_right = static_cast<bool>(action);
- }
-
- void PilotCameraController::moveUpward(int action){
- m_upward = static_cast<bool>(action);
- }
-
- void PilotCameraController::moveDownward(int action){
- m_downward = static_cast<bool>(action);
- }
-
}
\ No newline at end of file
diff --git a/modules/camera/src/vkcv/camera/TrackballCameraController.cpp b/modules/camera/src/vkcv/camera/TrackballCameraController.cpp
index b149a168f061125c08103ba63fcd7a97fa13ccc3..8de2beb87d8f29415db611bfe0d17c5efd57a2a3 100644
--- a/modules/camera/src/vkcv/camera/TrackballCameraController.cpp
+++ b/modules/camera/src/vkcv/camera/TrackballCameraController.cpp
@@ -23,10 +23,10 @@ namespace vkcv::camera {
}
// handle yaw rotation
- m_yaw = m_yaw + static_cast<float>(xOffset) * m_cameraSpeed;
+ m_yaw = m_yaw + static_cast<float>(xOffset) * 90.0f * m_cameraSpeed;
// handle pitch rotation
- m_pitch = m_pitch + static_cast<float>(yOffset) * m_cameraSpeed;
+ m_pitch = m_pitch + static_cast<float>(yOffset) * 90.0f * m_cameraSpeed;
}
void TrackballCameraController::updateRadius(double offset, Camera &camera) {
@@ -67,15 +67,10 @@ namespace vkcv::camera {
}
void TrackballCameraController::mouseMoveCallback(double xoffset, double yoffset, Camera &camera) {
- if(!m_rotationActive){
- return;
- }
-
- float sensitivity = 0.025f;
- xoffset *= sensitivity;
- yoffset *= sensitivity;
+ xoffset *= static_cast<float>(m_rotationActive);
+ yoffset *= static_cast<float>(m_rotationActive);
- panView(xoffset , yoffset, camera);
+ panView(xoffset, yoffset, camera);
}
void TrackballCameraController::mouseButtonCallback(int button, int action, int mods, Camera &camera) {
@@ -91,7 +86,7 @@ namespace vkcv::camera {
GLFWgamepadstate gamepadState;
glfwGetGamepadState(gamepadIndex, &gamepadState);
- float sensitivity = 100.0f;
+ float sensitivity = 1.0f;
double threshold = 0.1;
// handle rotations
diff --git a/modules/shader_compiler/CMakeLists.txt b/modules/shader_compiler/CMakeLists.txt
index 6fee42bfb571168cd2371e21e231ce417efa41f0..11c1e460575709dd9c9c16fdd02b6b923cc33045 100644
--- a/modules/shader_compiler/CMakeLists.txt
+++ b/modules/shader_compiler/CMakeLists.txt
@@ -31,7 +31,7 @@ include(config/GLSLANG.cmake)
target_link_libraries(vkcv_shader_compiler ${vkcv_shader_compiler_libraries} vkcv)
# including headers of dependencies and the VkCV framework
-target_include_directories(vkcv_shader_compiler SYSTEM BEFORE PRIVATE ${vkcv_shader_compiler_includes} ${vkcv_include})
+target_include_directories(vkcv_shader_compiler SYSTEM BEFORE PRIVATE ${vkcv_shader_compiler_includes} ${vkcv_include} ${vkcv_includes})
# add the own include directory for public headers
target_include_directories(vkcv_shader_compiler BEFORE PUBLIC ${vkcv_shader_compiler_include})
diff --git a/modules/shader_compiler/src/vkcv/shader/GLSLCompiler.cpp b/modules/shader_compiler/src/vkcv/shader/GLSLCompiler.cpp
index c8878513bf99054e357f1b076dfe12664be763b3..16067aebedfda8793a0096803ba5344275bcbbcd 100644
--- a/modules/shader_compiler/src/vkcv/shader/GLSLCompiler.cpp
+++ b/modules/shader_compiler/src/vkcv/shader/GLSLCompiler.cpp
@@ -2,7 +2,7 @@
#include "vkcv/shader/GLSLCompiler.hpp"
#include <fstream>
-#include <strstream>
+#include <sstream>
#include <glslang/SPIRV/GlslangToSpv.h>
#include <glslang/StandAlone/DirStackFileIncluder.h>
@@ -219,12 +219,10 @@ namespace vkcv::shader {
std::string source (shaderSource);
if (!m_defines.empty()) {
- std::strstream defines;
+ std::ostringstream defines;
for (const auto& define : m_defines) {
defines << "#define " << define.first << " " << define.second << std::endl;
}
-
- defines << '\0';
size_t pos = source.find("#version") + 8;
if (pos >= source.length()) {
@@ -236,8 +234,10 @@ namespace vkcv::shader {
pos = epos;
}
+ const auto defines_str = defines.str();
+
pos = source.find('\n', pos) + 1;
- source = source.insert(pos, defines.str());
+ source = source.insert(pos, defines_str);
}
const char *shaderStrings [1];
diff --git a/projects/CMakeLists.txt b/projects/CMakeLists.txt
index c4fde45438e5c8446c6a1d50ceec16f830e8ebfd..8010718447b8e72aed8eab42c8eac3e9591986ee 100644
--- a/projects/CMakeLists.txt
+++ b/projects/CMakeLists.txt
@@ -6,3 +6,4 @@ add_subdirectory(first_scene)
add_subdirectory(particle_simulation)
add_subdirectory(voxelization)
add_subdirectory(mesh_shader)
+add_subdirectory(indirect_dispatch)
diff --git a/projects/first_mesh/src/main.cpp b/projects/first_mesh/src/main.cpp
index 8f0e2d1cac253418d278e10382e36e12040cea7f..2ad76e8f78c5870f6b582a1970caac306026166f 100644
--- a/projects/first_mesh/src/main.cpp
+++ b/projects/first_mesh/src/main.cpp
@@ -165,7 +165,6 @@ int main(int argc, const char** argv) {
vkcv::camera::CameraManager cameraManager(window);
uint32_t camIndex0 = cameraManager.addCamera(vkcv::camera::ControllerType::PILOT);
- uint32_t camIndex1 = cameraManager.addCamera(vkcv::camera::ControllerType::TRACKBALL);
cameraManager.getCamera(camIndex0).setPosition(glm::vec3(0, 0, -3));
diff --git a/projects/first_triangle/src/main.cpp b/projects/first_triangle/src/main.cpp
index 78a7db62f6ffd6d2e3dbd41ea1dace89209315f8..76e860dea27126c943fa6b6a7d5a01f174203920 100644
--- a/projects/first_triangle/src/main.cpp
+++ b/projects/first_triangle/src/main.cpp
@@ -25,8 +25,6 @@ int main(int argc, const char** argv) {
{ VK_KHR_SWAPCHAIN_EXTENSION_NAME }
);
- const auto& context = core.getContext();
-
auto triangleIndexBuffer = core.createBuffer<uint16_t>(vkcv::BufferType::INDEX, 3, vkcv::BufferMemoryType::DEVICE_LOCAL);
uint16_t indices[3] = { 0, 1, 2 };
triangleIndexBuffer.fill(&indices[0], sizeof(indices));
diff --git a/projects/indirect_dispatch/.gitignore b/projects/indirect_dispatch/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..5f18d9c205e538dabeb0282640bede0359edc33d
--- /dev/null
+++ b/projects/indirect_dispatch/.gitignore
@@ -0,0 +1 @@
+indirect_dispatch
diff --git a/projects/indirect_dispatch/CMakeLists.txt b/projects/indirect_dispatch/CMakeLists.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7bc86cbc8470352f13bbfcc62f793b0a99d92884
--- /dev/null
+++ b/projects/indirect_dispatch/CMakeLists.txt
@@ -0,0 +1,44 @@
+cmake_minimum_required(VERSION 3.16)
+project(indirect_dispatch)
+
+# setting c++ standard for the project
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+# this should fix the execution path to load local files from the project
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
+
+# adding source files to the project
+add_executable(indirect_dispatch src/main.cpp)
+
+target_sources(indirect_dispatch PRIVATE
+ src/App.hpp
+ src/App.cpp
+
+ src/AppConfig.hpp
+ src/MotionBlurConfig.hpp
+
+ src/AppSetup.hpp
+ src/AppSetup.cpp
+
+ src/MotionBlur.hpp
+ src/MotionBlur.cpp
+
+ src/MotionBlurSetup.hpp
+ src/MotionBlurSetup.cpp)
+
+# this should fix the execution path to load local files from the project (for MSVC)
+if(MSVC)
+ set_target_properties(indirect_dispatch PROPERTIES RUNTIME_OUTPUT_DIRECTORY_DEBUG ${CMAKE_RUNTIME_OUTPUT_DIRECTORY})
+ set_target_properties(indirect_dispatch PROPERTIES RUNTIME_OUTPUT_DIRECTORY_RELEASE ${CMAKE_RUNTIME_OUTPUT_DIRECTORY})
+
+ # in addition to setting the output directory, the working directory has to be set
+ # by default visual studio sets the working directory to the build directory, when using the debugger
+ set_target_properties(indirect_dispatch PROPERTIES VS_DEBUGGER_WORKING_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY})
+endif()
+
+# including headers of dependencies and the VkCV framework
+target_include_directories(indirect_dispatch SYSTEM BEFORE PRIVATE ${vkcv_include} ${vkcv_includes} ${vkcv_testing_include} ${vkcv_camera_include} ${vkcv_shader_compiler_include} ${vkcv_gui_include})
+
+# linking with libraries from all dependencies and the VkCV framework
+target_link_libraries(indirect_dispatch vkcv ${vkcv_libraries} vkcv_asset_loader ${vkcv_asset_loader_libraries} vkcv_testing vkcv_camera vkcv_shader_compiler vkcv_gui)
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/models/cube.bin b/projects/indirect_dispatch/resources/models/cube.bin
new file mode 100644
index 0000000000000000000000000000000000000000..728d38cd39cd10c30a93c15eef021cb0cf7dda74
--- /dev/null
+++ b/projects/indirect_dispatch/resources/models/cube.bin
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ccc59e0be3552b4347457bc935d8e548b52f12ca91716a0f0dc37d5bac65f123
+size 840
diff --git a/projects/indirect_dispatch/resources/models/cube.gltf b/projects/indirect_dispatch/resources/models/cube.gltf
new file mode 100644
index 0000000000000000000000000000000000000000..ef975c326c71ec1a2fa650a422989534f1c32191
--- /dev/null
+++ b/projects/indirect_dispatch/resources/models/cube.gltf
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0072448af64bdebffe8eec5a7f32f110579b1a256cd97438bf227e4cc4a87328
+size 2571
diff --git a/projects/indirect_dispatch/resources/models/grid.png b/projects/indirect_dispatch/resources/models/grid.png
new file mode 100644
index 0000000000000000000000000000000000000000..5f40eee62f7f9dba3dc156ff6a3653ea2e7f5391
--- /dev/null
+++ b/projects/indirect_dispatch/resources/models/grid.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a11c33e4935d93723ab11f597f2aca1ca1ff84af66f2e2d10a01580eb0b7831a
+size 40135
diff --git a/projects/indirect_dispatch/resources/models/ground.bin b/projects/indirect_dispatch/resources/models/ground.bin
new file mode 100644
index 0000000000000000000000000000000000000000..e29e4f18552def1ac64c167d994be959f82e35c7
--- /dev/null
+++ b/projects/indirect_dispatch/resources/models/ground.bin
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f8e20cd1c62da3111536283517b63a149f258ea82b1dff8ddafdb79020065b7c
+size 140
diff --git a/projects/indirect_dispatch/resources/models/ground.gltf b/projects/indirect_dispatch/resources/models/ground.gltf
new file mode 100644
index 0000000000000000000000000000000000000000..6935d3e21a06da1629087c9b0b7f957c57feaf6e
--- /dev/null
+++ b/projects/indirect_dispatch/resources/models/ground.gltf
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0a12b8d7cca8110d4ffa9bc4a2223286d1ccfd9c087739a75294e0a3fbfb65c5
+size 2840
diff --git a/projects/indirect_dispatch/resources/shaders/gammaCorrection.comp b/projects/indirect_dispatch/resources/shaders/gammaCorrection.comp
new file mode 100644
index 0000000000000000000000000000000000000000..7a6e129d7f8658d3ea424d35b809a3384d12bccc
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/gammaCorrection.comp
@@ -0,0 +1,24 @@
+#version 440
+#extension GL_GOOGLE_include_directive : enable
+
+layout(set=0, binding=0) uniform texture2D inTexture;
+layout(set=0, binding=1) uniform sampler textureSampler;
+layout(set=0, binding=2, rgba8) uniform image2D outImage;
+
+layout(local_size_x = 8, local_size_y = 8, local_size_z = 1) in;
+
+void main(){
+
+ ivec2 outImageRes = imageSize(outImage);
+ ivec2 coord = ivec2(gl_GlobalInvocationID.xy);
+
+ if(any(greaterThanEqual(coord, outImageRes)))
+ return;
+
+ vec2 uv = vec2(coord) / outImageRes;
+ vec3 linearColor = texture(sampler2D(inTexture, textureSampler), uv).rgb;
+
+ vec3 gammaCorrected = pow(linearColor, vec3(1 / 2.2));
+
+ imageStore(outImage, coord, vec4(gammaCorrected, 0.f));
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/mesh.frag b/projects/indirect_dispatch/resources/shaders/mesh.frag
new file mode 100644
index 0000000000000000000000000000000000000000..531c9cbf8b5e097af618d2ca639821a62a30611d
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/mesh.frag
@@ -0,0 +1,17 @@
+#version 450
+#extension GL_ARB_separate_shader_objects : enable
+
+layout(location = 0) in vec3 passNormal;
+layout(location = 1) in vec2 passUV;
+
+layout(location = 0) out vec3 outColor;
+
+layout(set=0, binding=0) uniform texture2D albedoTexture;
+layout(set=0, binding=1) uniform sampler textureSampler;
+
+void main() {
+ vec3 albedo = texture(sampler2D(albedoTexture, textureSampler), passUV).rgb;
+ vec3 N = normalize(passNormal);
+ float light = max(N.y * 0.5 + 0.5, 0);
+ outColor = light * albedo;
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/mesh.vert b/projects/indirect_dispatch/resources/shaders/mesh.vert
new file mode 100644
index 0000000000000000000000000000000000000000..734fd63cdee66e5fbf61cc427ca21fae18a31d82
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/mesh.vert
@@ -0,0 +1,20 @@
+#version 450
+#extension GL_ARB_separate_shader_objects : enable
+
+layout(location = 0) in vec3 inPosition;
+layout(location = 1) in vec3 inNormal;
+layout(location = 2) in vec2 inUV;
+
+layout(location = 0) out vec3 passNormal;
+layout(location = 1) out vec2 passUV;
+
+layout( push_constant ) uniform constants{
+ mat4 mvp;
+ mat4 model;
+};
+
+void main() {
+ gl_Position = mvp * vec4(inPosition, 1.0);
+ passNormal = (model * vec4(inNormal, 0)).xyz;
+ passUV = inUV;
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/motionBlur.comp b/projects/indirect_dispatch/resources/shaders/motionBlur.comp
new file mode 100644
index 0000000000000000000000000000000000000000..091c21aa7ddfe9db1780aa64adc77fd5457a3843
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/motionBlur.comp
@@ -0,0 +1,194 @@
+#version 440
+#extension GL_GOOGLE_include_directive : enable
+
+#include "motionBlur.inc"
+#include "motionBlurConfig.inc"
+#include "motionBlurWorkTile.inc"
+
+layout(set=0, binding=0) uniform texture2D inColor;
+layout(set=0, binding=1) uniform texture2D inDepth;
+layout(set=0, binding=2) uniform texture2D inMotionFullRes;
+layout(set=0, binding=3) uniform texture2D inMotionNeighbourhoodMax;
+layout(set=0, binding=4) uniform sampler nearestSampler;
+layout(set=0, binding=5, r11f_g11f_b10f) uniform image2D outImage;
+
+layout(set=0, binding=6) buffer WorkTileBuffer {
+ WorkTiles workTiles;
+};
+
+layout(local_size_x = motionTileSize, local_size_y = motionTileSize, local_size_z = 1) in;
+
+layout( push_constant ) uniform constants{
+ // computed from delta time and shutter speed
+ float motionScaleFactor;
+ // camera planes are needed to linearize depth
+ float cameraNearPlane;
+ float cameraFarPlane;
+ float motionTileOffsetLength;
+};
+
+float linearizeDepth(float depth, float near, float far){
+ return near * far / (far + depth * (near - far));
+}
+
+struct SampleData{
+ vec3 color;
+ float depthLinear;
+ vec2 coordinate;
+ vec2 motion;
+ float velocityPixels;
+};
+
+struct PointSpreadCompare{
+ float foreground;
+ float background;
+};
+
+// results in range [0, 1]
+// computes if the sample pixel in the foreground would blur over the main pixel and if the sample pixel in the background would be part of the main pixel background
+// contribution depends on if the distance between pixels is smaller than it's velocity
+// note that compared to the constant falloff used in McGuire's papers this function from Jimenez is constant until the last pixel
+// this is important for the later gradient computation
+PointSpreadCompare samplePointSpreadCompare(SampleData mainPixel, SampleData samplePixel){
+
+ float sampleOffset = distance(mainPixel.coordinate, samplePixel.coordinate);
+
+ PointSpreadCompare pointSpread;
+ pointSpread.foreground = clamp(1 - sampleOffset + samplePixel.velocityPixels, 0, 1);
+ pointSpread.background = clamp(1 - sampleOffset + mainPixel.velocityPixels, 0, 1);
+
+ return pointSpread;
+}
+
+struct DepthClassification{
+ float foreground;
+ float background;
+};
+
+// classifies depthSample compared to depthMain in regards to being in the fore- or background
+// the range is [0, 1] and sums to 1
+DepthClassification sampleDepthClassification(SampleData mainPixel, SampleData samplePixel){
+
+ const float softDepthExtent = 0.1;
+
+ DepthClassification classification;
+ // only the sign is different, so the latter term will cancel out on addition, so only two times 0.5 remains which sums to one
+ classification.foreground = clamp(0.5 + (mainPixel.depthLinear - samplePixel.depthLinear) / softDepthExtent, 0, 1);
+ classification.background = clamp(0.5 - (mainPixel.depthLinear - samplePixel.depthLinear) / softDepthExtent, 0, 1);
+ return classification;
+}
+
+// reconstruction filter and helper functions from "Next Generation Post Processing in Call of Duty Advanced Warfare", Jimenez
+// returns value in range [0, 1]
+float computeSampleWeigth(SampleData mainPixel, SampleData samplePixel){
+
+ PointSpreadCompare pointSpread = samplePointSpreadCompare( mainPixel, samplePixel);
+ DepthClassification depthClassification = sampleDepthClassification(mainPixel, samplePixel);
+
+ return
+ depthClassification.foreground * pointSpread.foreground +
+ depthClassification.background * pointSpread.background;
+}
+
+SampleData loadSampleData(vec2 uv){
+
+ SampleData data;
+ data.color = texture(sampler2D(inColor, nearestSampler), uv).rgb;
+ data.coordinate = ivec2(uv * imageSize(outImage));
+ data.motion = processMotionVector(texture(sampler2D(inMotionFullRes, nearestSampler), uv).rg, motionScaleFactor, imageSize(outImage));
+ data.velocityPixels = length(data.motion * imageSize(outImage));
+ data.depthLinear = texture(sampler2D(inDepth, nearestSampler), uv).r;
+ data.depthLinear = linearizeDepth(data.depthLinear, cameraNearPlane, cameraFarPlane);
+
+ return data;
+}
+
+void main(){
+
+ uint tileIndex = gl_WorkGroupID.x;
+ ivec2 tileCoordinates = workTiles.tileXY[tileIndex];
+ ivec2 coord = ivec2(tileCoordinates * motionTileSize + gl_LocalInvocationID.xy);
+
+ if(any(greaterThanEqual(coord, imageSize(outImage))))
+ return;
+
+ ivec2 textureRes = textureSize(sampler2D(inColor, nearestSampler), 0);
+ vec2 uv = vec2(coord + 0.5) / textureRes; // + 0.5 to shift uv into pixel center
+
+ // the motion tile lookup is jittered, so the hard edges in the blur are replaced by noise
+ // dither is shifted, so it does not line up with motion tiles
+ float motionOffset = motionTileOffsetLength * (dither(coord + ivec2(ditherSize / 2)) * 2 - 1);
+ vec2 motionNeighbourhoodMax = processMotionVector(texelFetch(sampler2D(inMotionNeighbourhoodMax, nearestSampler), ivec2(coord + motionOffset) / motionTileSize, 0).rg, motionScaleFactor, imageSize(outImage));
+
+ SampleData mainPixel = loadSampleData(uv);
+
+ // early out on movement less than half a pixel
+ if(length(motionNeighbourhoodMax * imageSize(outImage)) <= 0.5){
+ imageStore(outImage, coord, vec4(mainPixel.color, 0.f));
+ return;
+ }
+
+ vec3 color = vec3(0);
+ float weightSum = 0;
+
+ // clamping start and end points avoids artifacts at image borders
+ // the sampler clamps the sample uvs anyways, but without clamping here, many samples can be stuck at the border
+ vec2 uvStart = clamp(uv - motionNeighbourhoodMax, 0, 1);
+ vec2 uvEnd = clamp(uv + motionNeighbourhoodMax, 0, 1);
+
+ // samples are placed evenly, but the entire filter is jittered
+ // dither returns either 0 or 1
+ // the sampleUV code expects an offset in range [-0.5, 0.5], so the dither is rescaled to a binary -0.25/0.25
+ float random = dither(coord) * 0.5 - 0.25;
+
+ const int sampleCountHalf = 8;
+
+ // two samples are processed at a time to allow for mirrored background reconstruction
+ for(int i = 0; i < sampleCountHalf; i++){
+
+ vec2 sampleUV1 = mix(uv, uvEnd, (i + random + 1) / float(sampleCountHalf + 1));
+ vec2 sampleUV2 = mix(uv, uvStart, (i + random + 1) / float(sampleCountHalf + 1));
+
+ SampleData sample1 = loadSampleData(sampleUV1);
+ SampleData sample2 = loadSampleData(sampleUV2);
+
+ float weight1 = computeSampleWeigth(mainPixel, sample1);
+ float weight2 = computeSampleWeigth(mainPixel, sample2);
+
+ bool mirroredBackgroundReconstruction = true;
+ if(mirroredBackgroundReconstruction){
+ // see Jimenez paper for details and comparison
+ // problem is that in the foreground the background is reconstructed, which is blurry
+ // in the background the background is obviously known, so it is sharper
+ // at the border between fore- and background this causes a discontinuity
+ // to fix this the weights are mirrored on this border, effectively reconstructing the background, even though it is known
+
+ // these bools check if sample1 is an affected background pixel (further away and slower moving than sample2)
+ bool inBackground = sample1.depthLinear > sample2.depthLinear;
+ bool blurredOver = sample1.velocityPixels < sample2.velocityPixels;
+
+ // this mirrors the weights depending on the results:
+ // if both conditions are true, then weight2 is mirrored to weight1
+ // if both conditions are false, then weight1 is mirrored to weight2, as sample2 is an affected background pixel
+ // if only one condition is true, then the weights are kept as is
+ weight1 = inBackground && blurredOver ? weight2 : weight1;
+ weight2 = inBackground || blurredOver ? weight2 : weight1;
+ }
+
+ weightSum += weight1;
+ weightSum += weight2;
+
+ color += sample1.color * weight1;
+ color += sample2.color * weight2;
+ }
+
+ // normalize color and weight
+ weightSum /= sampleCountHalf * 2;
+ color /= sampleCountHalf * 2;
+
+ // the main color is considered the background
+ // the weight sum can be interpreted as the alpha of the combined samples, see Jimenez paper
+ color += (1 - weightSum) * mainPixel.color;
+
+ imageStore(outImage, coord, vec4(color, 0.f));
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/motionBlur.inc b/projects/indirect_dispatch/resources/shaders/motionBlur.inc
new file mode 100644
index 0000000000000000000000000000000000000000..6fdaf4c5f5e4b07a3111946b0732137f42f295ef
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/motionBlur.inc
@@ -0,0 +1,35 @@
+#ifndef MOTION_BLUR
+#define MOTION_BLUR
+
+#include "motionBlurConfig.inc"
+
+// see "A Reconstruction Filter for Plausible Motion Blur", section 2.2
+vec2 processMotionVector(vec2 motion, float motionScaleFactor, ivec2 imageResolution){
+ // every frame a pixel should blur over the distance it moves
+ // as we blur in two directions (where it was and where it will be) we must half the motion
+ vec2 motionHalf = motion * 0.5;
+ vec2 motionScaled = motionHalf * motionScaleFactor; // scale factor contains shutter speed and delta time
+
+ // pixels are anisotropic, so the ratio for clamping the velocity is computed in pixels instead of uv coordinates
+ vec2 motionPixel = motionScaled * imageResolution;
+ float velocityPixels = length(motionPixel);
+
+ float epsilon = 0.0001;
+
+ // this clamps the motion to not exceed the radius given by the motion tile size
+ return motionScaled * max(0.5, min(velocityPixels, motionTileSize)) / (velocityPixels + epsilon);
+}
+
+const int ditherSize = 4;
+
+// simple binary dither pattern
+// could be optimized to avoid modulo and branch
+float dither(ivec2 coord){
+
+ bool x = coord.x % ditherSize < (ditherSize / 2);
+ bool y = coord.y % ditherSize < (ditherSize / 2);
+
+ return x ^^ y ? 1 : 0;
+}
+
+#endif // #ifndef MOTION_BLUR
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/motionBlurColorCopy.comp b/projects/indirect_dispatch/resources/shaders/motionBlurColorCopy.comp
new file mode 100644
index 0000000000000000000000000000000000000000..1d8f210c86c2670241fa1d011835b120a39eddc0
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/motionBlurColorCopy.comp
@@ -0,0 +1,29 @@
+#version 440
+#extension GL_GOOGLE_include_directive : enable
+
+#include "motionBlurConfig.inc"
+#include "motionBlurWorkTile.inc"
+
+layout(set=0, binding=0) uniform texture2D inColor;
+layout(set=0, binding=1) uniform sampler nearestSampler;
+layout(set=0, binding=2, r11f_g11f_b10f) uniform image2D outImage;
+
+layout(set=0, binding=3) buffer WorkTileBuffer {
+ WorkTiles workTiles;
+};
+
+layout(local_size_x = motionTileSize, local_size_y = motionTileSize, local_size_z = 1) in;
+
+void main(){
+
+ uint tileIndex = gl_WorkGroupID.x;
+ ivec2 tileCoordinates = workTiles.tileXY[tileIndex];
+ ivec2 coordinate = ivec2(tileCoordinates * motionTileSize + gl_LocalInvocationID.xy);
+
+ if(any(greaterThanEqual(coordinate, imageSize(outImage))))
+ return;
+
+ vec3 color = texelFetch(sampler2D(inColor, nearestSampler), coordinate, 0).rgb;
+
+ imageStore(outImage, coordinate, vec4(color, 0.f));
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/motionBlurConfig.inc b/projects/indirect_dispatch/resources/shaders/motionBlurConfig.inc
new file mode 100644
index 0000000000000000000000000000000000000000..5b8679da119d84242c55d7d89de80ed8b64e5cc9
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/motionBlurConfig.inc
@@ -0,0 +1,8 @@
+#ifndef MOTION_BLUR_CONFIG
+#define MOTION_BLUR_CONFIG
+
+const int motionTileSize = 16;
+const int maxMotionBlurWidth = 3840;
+const int maxMotionBlurHeight = 2160;
+
+#endif // #ifndef MOTION_BLUR_CONFIG
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/motionBlurFastPath.comp b/projects/indirect_dispatch/resources/shaders/motionBlurFastPath.comp
new file mode 100644
index 0000000000000000000000000000000000000000..2e27ebedcc4be1da93ff89a187fe1d3e992e8d22
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/motionBlurFastPath.comp
@@ -0,0 +1,68 @@
+#version 440
+#extension GL_GOOGLE_include_directive : enable
+
+#include "motionBlur.inc"
+#include "motionBlurConfig.inc"
+#include "motionBlurWorkTile.inc"
+
+layout(set=0, binding=0) uniform texture2D inColor;
+layout(set=0, binding=1) uniform texture2D inMotionNeighbourhoodMax;
+layout(set=0, binding=2) uniform sampler nearestSampler;
+layout(set=0, binding=3, r11f_g11f_b10f) uniform image2D outImage;
+
+layout(set=0, binding=4) buffer WorkTileBuffer {
+ WorkTiles workTiles;
+};
+
+layout(local_size_x = motionTileSize, local_size_y = motionTileSize, local_size_z = 1) in;
+
+layout( push_constant ) uniform constants{
+ // computed from delta time and shutter speed
+ float motionScaleFactor;
+};
+
+void main(){
+
+ uint tileIndex = gl_WorkGroupID.x;
+ ivec2 tileCoordinates = workTiles.tileXY[tileIndex];
+ ivec2 coord = ivec2(tileCoordinates * motionTileSize + gl_LocalInvocationID.xy);
+
+ if(any(greaterThanEqual(coord, imageSize(outImage))))
+ return;
+
+ ivec2 textureRes = textureSize(sampler2D(inColor, nearestSampler), 0);
+ vec2 uv = vec2(coord + 0.5) / textureRes; // + 0.5 to shift uv into pixel center
+
+ vec2 motionNeighbourhoodMax = processMotionVector(texelFetch(sampler2D(inMotionNeighbourhoodMax, nearestSampler), coord / motionTileSize, 0).rg, motionScaleFactor, imageSize(outImage));
+
+ // early out on movement less than half a pixel
+ if(length(motionNeighbourhoodMax * imageSize(outImage)) <= 0.5){
+ vec3 color = texture(sampler2D(inColor, nearestSampler), uv).rgb;
+ imageStore(outImage, coord, vec4(color, 0.f));
+ return;
+ }
+
+ vec3 color = vec3(0);
+
+ // clamping start and end points avoids artifacts at image borders
+ // the sampler clamps the sample uvs anyways, but without clamping here, many samples can be stuck at the border
+ vec2 uvStart = clamp(uv - motionNeighbourhoodMax, 0, 1);
+ vec2 uvEnd = clamp(uv + motionNeighbourhoodMax, 0, 1);
+
+ // samples are placed evenly, but the entire filter is jittered
+ // dither returns either 0 or 1
+ // the sampleUV code expects an offset in range [-0.5, 0.5], so the dither is rescaled to a binary -0.25/0.25
+ float random = dither(coord) * 0.5 - 0.25;
+
+ const int sampleCount = 16;
+
+ for(int i = 0; i < sampleCount; i++){
+
+ vec2 sampleUV = mix(uvStart, uvEnd, (i + random + 1) / float(sampleCount + 1));
+ color += texture(sampler2D(inColor, nearestSampler), sampleUV).rgb;
+ }
+
+ color /= sampleCount;
+
+ imageStore(outImage, coord, vec4(color, 0.f));
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/motionBlurTileClassification.comp b/projects/indirect_dispatch/resources/shaders/motionBlurTileClassification.comp
new file mode 100644
index 0000000000000000000000000000000000000000..3c6f9e3715951ac4fe6770725c3314590cbbff47
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/motionBlurTileClassification.comp
@@ -0,0 +1,58 @@
+#version 440
+#extension GL_GOOGLE_include_directive : enable
+
+#include "motionBlurWorkTile.inc"
+
+layout(set=0, binding=0) uniform texture2D inMotionMax;
+layout(set=0, binding=1) uniform texture2D inMotionMin;
+layout(set=0, binding=2) uniform sampler nearestSampler;
+
+layout(set=0, binding=3) buffer FullPathTileBuffer {
+ WorkTiles fullPathTiles;
+};
+
+layout(set=0, binding=4) buffer CopyPathTileBuffer {
+ WorkTiles copyPathTiles;
+};
+
+layout(set=0, binding=5) buffer FastPathTileBuffer {
+ WorkTiles fastPathTiles;
+};
+
+layout(local_size_x = 8, local_size_y = 8, local_size_z = 1) in;
+
+layout( push_constant ) uniform constants{
+ uint width;
+ uint height;
+ float fastPathThreshold;
+};
+
+void main(){
+
+ ivec2 tileCoord = ivec2(gl_GlobalInvocationID.xy);
+
+ if(any(greaterThanEqual(gl_GlobalInvocationID.xy, textureSize(sampler2D(inMotionMax, nearestSampler), 0))))
+ return;
+
+ vec2 motionMax = texelFetch(sampler2D(inMotionMax, nearestSampler), tileCoord, 0).rg;
+ vec2 motionMin = texelFetch(sampler2D(inMotionMin, nearestSampler), tileCoord, 0).rg;
+
+ vec2 motionPixelMax = motionMax * vec2(width, height);
+ vec2 motionPixelMin = motionMin * vec2(width, height);
+
+ float velocityPixelMax = length(motionPixelMax);
+ float minMaxDistance = distance(motionPixelMin, motionPixelMax);
+
+ if(velocityPixelMax <= 0.5){
+ uint index = atomicAdd(copyPathTiles.tileCount, 1);
+ copyPathTiles.tileXY[index] = tileCoord;
+ }
+ else if(minMaxDistance <= fastPathThreshold){
+ uint index = atomicAdd(fastPathTiles.tileCount, 1);
+ fastPathTiles.tileXY[index] = tileCoord;
+ }
+ else{
+ uint index = atomicAdd(fullPathTiles.tileCount, 1);
+ fullPathTiles.tileXY[index] = tileCoord;
+ }
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/motionBlurTileClassificationVis.comp b/projects/indirect_dispatch/resources/shaders/motionBlurTileClassificationVis.comp
new file mode 100644
index 0000000000000000000000000000000000000000..3382ff5ef0b407b9a3a7785eda0d19efe5a8f96e
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/motionBlurTileClassificationVis.comp
@@ -0,0 +1,56 @@
+#version 440
+#extension GL_GOOGLE_include_directive : enable
+
+#include "motionBlurConfig.inc"
+#include "motionBlurWorkTile.inc"
+
+layout(set=0, binding=0) uniform texture2D inColor;
+layout(set=0, binding=1) uniform sampler nearestSampler;
+layout(set=0, binding=2, r11f_g11f_b10f) uniform image2D outImage;
+
+layout(set=0, binding=3) buffer FullPathTileBuffer {
+ WorkTiles fullPathTiles;
+};
+
+layout(set=0, binding=4) buffer CopyPathTileBuffer {
+ WorkTiles copyPathTiles;
+};
+
+layout(set=0, binding=5) buffer FastPathTileBuffer {
+ WorkTiles fastPathTiles;
+};
+
+layout(local_size_x = motionTileSize, local_size_y = motionTileSize, local_size_z = 1) in;
+
+void main(){
+
+ uint tileIndexFullPath = gl_WorkGroupID.x;
+ uint tileIndexCopyPath = gl_WorkGroupID.x - fullPathTiles.tileCount;
+ uint tileIndexFastPath = gl_WorkGroupID.x - fullPathTiles.tileCount - copyPathTiles.tileCount;
+
+ vec3 debugColor;
+ ivec2 tileCoordinates;
+
+ if(tileIndexFullPath < fullPathTiles.tileCount){
+ debugColor = vec3(1, 0, 0);
+ tileCoordinates = fullPathTiles.tileXY[tileIndexFullPath];
+ }
+ else if(tileIndexCopyPath < copyPathTiles.tileCount){
+ debugColor = vec3(0, 1, 0);
+ tileCoordinates = copyPathTiles.tileXY[tileIndexCopyPath];
+ }
+ else if(tileIndexFastPath < fastPathTiles.tileCount){
+ debugColor = vec3(0, 0, 1);
+ tileCoordinates = fastPathTiles.tileXY[tileIndexFastPath];
+ }
+ else{
+ return;
+ }
+
+ ivec2 coordinate = ivec2(tileCoordinates * motionTileSize + gl_LocalInvocationID.xy);
+ vec3 color = texelFetch(sampler2D(inColor, nearestSampler), coordinate, 0).rgb;
+
+ color = mix(color, debugColor, 0.5);
+
+ imageStore(outImage, coordinate, vec4(color, 0));
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/motionBlurWorkTile.inc b/projects/indirect_dispatch/resources/shaders/motionBlurWorkTile.inc
new file mode 100644
index 0000000000000000000000000000000000000000..8577f100aac524b93eecac406606a962bc52d222
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/motionBlurWorkTile.inc
@@ -0,0 +1,19 @@
+#ifndef MOTION_BLUR_WORK_TILE
+#define MOTION_BLUR_WORK_TILE
+
+#include "motionBlurConfig.inc"
+
+const int maxTileCount =
+ (maxMotionBlurWidth + motionTileSize - 1) / motionTileSize *
+ (maxMotionBlurHeight + motionTileSize - 1) / motionTileSize;
+
+struct WorkTiles{
+ uint tileCount;
+ // dispatch Y/Z are here so the buffer can be used directly as an indirect dispatch argument buffer
+ uint dispatchY;
+ uint dispatchZ;
+
+ ivec2 tileXY[maxTileCount];
+};
+
+#endif // #ifndef MOTION_BLUR_WORK_TILE
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/motionBlurWorkTileReset.comp b/projects/indirect_dispatch/resources/shaders/motionBlurWorkTileReset.comp
new file mode 100644
index 0000000000000000000000000000000000000000..d4b55582a0a18c0c6a3fecf1dd6ce69ed49ca2c1
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/motionBlurWorkTileReset.comp
@@ -0,0 +1,32 @@
+#version 440
+#extension GL_GOOGLE_include_directive : enable
+
+#include "motionBlurWorkTile.inc"
+
+layout(set=0, binding=0) buffer FullPathTileBuffer {
+ WorkTiles fullPathTiles;
+};
+
+layout(set=0, binding=1) buffer CopyPathTileBuffer {
+ WorkTiles copyPathTiles;
+};
+
+layout(set=0, binding=2) buffer FastPathTileBuffer {
+ WorkTiles fastPathTiles;
+};
+
+layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
+
+void main(){
+ fullPathTiles.tileCount = 0;
+ fullPathTiles.dispatchY = 1;
+ fullPathTiles.dispatchZ = 1;
+
+ copyPathTiles.tileCount = 0;
+ copyPathTiles.dispatchY = 1;
+ copyPathTiles.dispatchZ = 1;
+
+ fastPathTiles.tileCount = 0;
+ fastPathTiles.dispatchY = 1;
+ fastPathTiles.dispatchZ = 1;
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/motionVector.inc b/projects/indirect_dispatch/resources/shaders/motionVector.inc
new file mode 100644
index 0000000000000000000000000000000000000000..498478cbc38b9666366eaa3d3e1a715dfc30236b
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/motionVector.inc
@@ -0,0 +1,9 @@
+vec2 computeMotionVector(vec4 NDC, vec4 NDCPrevious){
+ vec2 ndc = NDC.xy / NDC.w;
+ vec2 ndcPrevious = NDCPrevious.xy / NDCPrevious.w;
+
+ vec2 uv = ndc * 0.5 + 0.5;
+ vec2 uvPrevious = ndcPrevious * 0.5 + 0.5;
+
+ return uvPrevious - uv;
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/motionVectorMinMax.comp b/projects/indirect_dispatch/resources/shaders/motionVectorMinMax.comp
new file mode 100644
index 0000000000000000000000000000000000000000..4ad350b0d5300aa63a66d7aceb00ea0b642d07ee
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/motionVectorMinMax.comp
@@ -0,0 +1,48 @@
+#version 440
+#extension GL_GOOGLE_include_directive : enable
+#include "motionBlurConfig.inc"
+
+layout(set=0, binding=0) uniform texture2D inMotion;
+layout(set=0, binding=1) uniform sampler textureSampler;
+layout(set=0, binding=2, rg16) uniform image2D outMotionMax;
+layout(set=0, binding=3, rg16) uniform image2D outMotionMin;
+
+layout(local_size_x = 8, local_size_y = 8, local_size_z = 1) in;
+
+void main(){
+
+ ivec2 outImageRes = imageSize(outMotionMax);
+ ivec2 motionTileCoord = ivec2(gl_GlobalInvocationID.xy);
+
+ if(any(greaterThanEqual(motionTileCoord, outImageRes)))
+ return;
+
+ float velocityMax = 0;
+ vec2 motionMax = vec2(0);
+
+ float velocityMin = 100000;
+ vec2 motionMin = vec2(0);
+
+ ivec2 motionBufferBaseCoord = motionTileCoord * motionTileSize;
+
+ for(int x = 0; x < motionTileSize; x++){
+ for(int y = 0; y < motionTileSize; y++){
+ ivec2 sampleCoord = motionBufferBaseCoord + ivec2(x, y);
+ vec2 motionSample = texelFetch(sampler2D(inMotion, textureSampler), sampleCoord, 0).rg;
+ float velocitySample = length(motionSample);
+
+ if(velocitySample > velocityMax){
+ velocityMax = velocitySample;
+ motionMax = motionSample;
+ }
+
+ if(velocitySample < velocityMin){
+ velocityMin = velocitySample;
+ motionMin = motionSample;
+ }
+ }
+ }
+
+ imageStore(outMotionMax, motionTileCoord, vec4(motionMax, 0, 0));
+ imageStore(outMotionMin, motionTileCoord, vec4(motionMin, 0, 0));
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/motionVectorMinMaxNeighbourhood.comp b/projects/indirect_dispatch/resources/shaders/motionVectorMinMaxNeighbourhood.comp
new file mode 100644
index 0000000000000000000000000000000000000000..4d6e7c0af6115e816ba087570e5585ffde23b1e6
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/motionVectorMinMaxNeighbourhood.comp
@@ -0,0 +1,51 @@
+#version 440
+#extension GL_GOOGLE_include_directive : enable
+
+layout(set=0, binding=0) uniform texture2D inMotionMax;
+layout(set=0, binding=1) uniform texture2D inMotionMin;
+layout(set=0, binding=2) uniform sampler textureSampler;
+layout(set=0, binding=3, rg16) uniform image2D outMotionMaxNeighbourhood;
+layout(set=0, binding=4, rg16) uniform image2D outMotionMinNeighbourhood;
+
+layout(local_size_x = 8, local_size_y = 8, local_size_z = 1) in;
+
+void main(){
+
+ ivec2 outImageRes = imageSize(outMotionMaxNeighbourhood);
+ ivec2 motionTileCoord = ivec2(gl_GlobalInvocationID.xy);
+
+ if(any(greaterThanEqual(motionTileCoord, outImageRes)))
+ return;
+
+ float velocityMax = 0;
+ vec2 motionMax = vec2(0);
+
+ float velocityMin = 10000;
+ vec2 motionMin = vec2(0);
+
+ for(int x = -1; x <= 1; x++){
+ for(int y = -1; y <= 1; y++){
+ ivec2 sampleCoord = motionTileCoord + ivec2(x, y);
+
+ vec2 motionSampleMax = texelFetch(sampler2D(inMotionMax, textureSampler), sampleCoord, 0).rg;
+ float velocitySampleMax = length(motionSampleMax);
+
+ if(velocitySampleMax > velocityMax){
+ velocityMax = velocitySampleMax;
+ motionMax = motionSampleMax;
+ }
+
+
+ vec2 motionSampleMin = texelFetch(sampler2D(inMotionMin, textureSampler), sampleCoord, 0).rg;
+ float velocitySampleMin = length(motionSampleMin);
+
+ if(velocitySampleMin < velocityMin){
+ velocityMin = velocitySampleMin;
+ motionMin = motionSampleMin;
+ }
+ }
+ }
+
+ imageStore(outMotionMaxNeighbourhood, motionTileCoord, vec4(motionMax, 0, 0));
+ imageStore(outMotionMinNeighbourhood, motionTileCoord, vec4(motionMin, 0, 0));
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/motionVectorVisualisation.comp b/projects/indirect_dispatch/resources/shaders/motionVectorVisualisation.comp
new file mode 100644
index 0000000000000000000000000000000000000000..1cfb09c87e8288b8ea80c6ddfbe5f0d4918b7f2e
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/motionVectorVisualisation.comp
@@ -0,0 +1,30 @@
+#version 440
+#extension GL_GOOGLE_include_directive : enable
+
+#include "motionBlurConfig.inc"
+
+layout(set=0, binding=0) uniform texture2D inMotion;
+layout(set=0, binding=1) uniform sampler textureSampler;
+layout(set=0, binding=2, r11f_g11f_b10f) uniform image2D outImage;
+
+layout(local_size_x = 8, local_size_y = 8, local_size_z = 1) in;
+
+layout( push_constant ) uniform constants{
+ float range;
+};
+
+void main(){
+
+ ivec2 outImageRes = imageSize(outImage);
+ ivec2 coord = ivec2(gl_GlobalInvocationID.xy);
+
+ if(any(greaterThanEqual(coord, outImageRes)))
+ return;
+
+ vec2 motionVector = texelFetch(sampler2D(inMotion, textureSampler), coord / motionTileSize, 0).rg;
+ vec2 motionVectorNormalized = clamp(motionVector / range, -1, 1);
+
+ vec2 color = motionVectorNormalized * 0.5 + 0.5;
+
+ imageStore(outImage, coord, vec4(color, 0.5, 0));
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/prepass.frag b/projects/indirect_dispatch/resources/shaders/prepass.frag
new file mode 100644
index 0000000000000000000000000000000000000000..ccfc84d982253f7b89551c099a92b5686a811163
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/prepass.frag
@@ -0,0 +1,14 @@
+#version 450
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_GOOGLE_include_directive : enable
+
+#include "motionVector.inc"
+
+layout(location = 0) in vec4 passNDC;
+layout(location = 1) in vec4 passNDCPrevious;
+
+layout(location = 0) out vec2 outMotion;
+
+void main() {
+ outMotion = computeMotionVector(passNDC, passNDCPrevious);
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/prepass.vert b/projects/indirect_dispatch/resources/shaders/prepass.vert
new file mode 100644
index 0000000000000000000000000000000000000000..230346208007fae0bb7724b5b6d05f62726c4ded
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/prepass.vert
@@ -0,0 +1,18 @@
+#version 450
+#extension GL_ARB_separate_shader_objects : enable
+
+layout(location = 0) in vec3 inPosition;
+
+layout(location = 0) out vec4 passNDC;
+layout(location = 1) out vec4 passNDCPrevious;
+
+layout( push_constant ) uniform constants{
+ mat4 mvp;
+ mat4 mvpPrevious;
+};
+
+void main() {
+ gl_Position = mvp * vec4(inPosition, 1.0);
+ passNDC = gl_Position;
+ passNDCPrevious = mvpPrevious * vec4(inPosition, 1.0);
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/sky.frag b/projects/indirect_dispatch/resources/shaders/sky.frag
new file mode 100644
index 0000000000000000000000000000000000000000..efc0e03b2d6ee1c71930c866293da66857bd56c7
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/sky.frag
@@ -0,0 +1,8 @@
+#version 450
+#extension GL_ARB_separate_shader_objects : enable
+
+layout(location = 0) out vec3 outColor;
+
+void main() {
+ outColor = vec3(0, 0.2, 0.9);
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/sky.vert b/projects/indirect_dispatch/resources/shaders/sky.vert
new file mode 100644
index 0000000000000000000000000000000000000000..44b48cd7f3bfc44e2e43edef0d474581d50608de
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/sky.vert
@@ -0,0 +1,13 @@
+#version 450
+#extension GL_ARB_separate_shader_objects : enable
+
+layout(location = 0) in vec3 inPosition;
+
+layout( push_constant ) uniform constants{
+ mat4 viewProjection;
+};
+
+void main() {
+ gl_Position = viewProjection * vec4(inPosition, 0.0);
+ gl_Position.w = gl_Position.z;
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/skyPrepass.frag b/projects/indirect_dispatch/resources/shaders/skyPrepass.frag
new file mode 100644
index 0000000000000000000000000000000000000000..64ec4f18bbcf89153d70019ace570da53d44a505
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/skyPrepass.frag
@@ -0,0 +1,14 @@
+#version 450
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_GOOGLE_include_directive : enable
+
+#include "motionVector.inc"
+
+layout(location = 0) out vec2 outMotion;
+
+layout(location = 0) in vec4 passNDC;
+layout(location = 1) in vec4 passNDCPrevious;
+
+void main() {
+ outMotion = computeMotionVector(passNDC, passNDCPrevious);
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/resources/shaders/skyPrepass.vert b/projects/indirect_dispatch/resources/shaders/skyPrepass.vert
new file mode 100644
index 0000000000000000000000000000000000000000..31b9016a592d097825a09e1daa888cb7b72b2cbc
--- /dev/null
+++ b/projects/indirect_dispatch/resources/shaders/skyPrepass.vert
@@ -0,0 +1,22 @@
+#version 450
+#extension GL_ARB_separate_shader_objects : enable
+
+layout(location = 0) in vec3 inPosition;
+
+layout( push_constant ) uniform constants{
+ mat4 viewProjection;
+ mat4 viewProjectionPrevious;
+};
+
+layout(location = 0) out vec4 passNDC;
+layout(location = 1) out vec4 passNDCPrevious;
+
+void main() {
+ gl_Position = viewProjection * vec4(inPosition, 0.0);
+ gl_Position.w = gl_Position.z;
+
+ passNDC = gl_Position;
+
+ passNDCPrevious = viewProjectionPrevious * vec4(inPosition, 0.0);
+ passNDCPrevious.w = passNDCPrevious.z;
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/src/App.cpp b/projects/indirect_dispatch/src/App.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..92d548acde9c5a27e69c6daf4d92ca1da9d50a2c
--- /dev/null
+++ b/projects/indirect_dispatch/src/App.cpp
@@ -0,0 +1,369 @@
+#include "App.hpp"
+#include "AppConfig.hpp"
+#include <chrono>
+#include <vkcv/gui/GUI.hpp>
+#include <functional>
+
+App::App() :
+ m_applicationName("Indirect Dispatch"),
+ m_windowWidth(AppConfig::defaultWindowWidth),
+ m_windowHeight(AppConfig::defaultWindowHeight),
+ m_window(vkcv::Window::create(
+ m_applicationName,
+ m_windowWidth,
+ m_windowHeight,
+ true)),
+ m_core(vkcv::Core::create(
+ m_window,
+ m_applicationName,
+ VK_MAKE_VERSION(0, 0, 1),
+ { vk::QueueFlagBits::eGraphics ,vk::QueueFlagBits::eCompute , vk::QueueFlagBits::eTransfer },
+ {},
+ { "VK_KHR_swapchain" })),
+ m_cameraManager(m_window){}
+
+bool App::initialize() {
+
+ if (!loadMeshPass(m_core, &m_meshPass))
+ return false;
+
+ if (!loadSkyPass(m_core, &m_skyPass))
+ return false;
+
+ if (!loadPrePass(m_core, &m_prePass))
+ return false;
+
+ if (!loadSkyPrePass(m_core, &m_skyPrePass))
+ return false;
+
+ if (!loadComputePass(m_core, "resources/shaders/gammaCorrection.comp", &m_gammaCorrectionPass))
+ return false;
+
+ if (!loadMesh(m_core, "resources/models/cube.gltf", &m_cubeMesh))
+ return false;
+
+ if (!loadMesh(m_core, "resources/models/ground.gltf", &m_groundMesh))
+ return false;
+
+ if(!loadImage(m_core, "resources/models/grid.png", &m_gridTexture))
+ return false;
+
+ if (!m_motionBlur.initialize(&m_core, m_windowWidth, m_windowHeight))
+ return false;
+
+ m_linearSampler = m_core.createSampler(
+ vkcv::SamplerFilterType::LINEAR,
+ vkcv::SamplerFilterType::LINEAR,
+ vkcv::SamplerMipmapMode::LINEAR,
+ vkcv::SamplerAddressMode::CLAMP_TO_EDGE);
+
+ m_renderTargets = createRenderTargets(m_core, m_windowWidth, m_windowHeight);
+
+ const int cameraIndex = m_cameraManager.addCamera(vkcv::camera::ControllerType::PILOT);
+ m_cameraManager.getCamera(cameraIndex).setPosition(glm::vec3(0, 1, -3));
+ m_cameraManager.getCamera(cameraIndex).setNearFar(0.1f, 30.f);
+
+ vkcv::DescriptorWrites meshPassDescriptorWrites;
+ meshPassDescriptorWrites.sampledImageWrites = { vkcv::SampledImageDescriptorWrite(0, m_gridTexture) };
+ meshPassDescriptorWrites.samplerWrites = { vkcv::SamplerDescriptorWrite(1, m_linearSampler) };
+ m_core.writeDescriptorSet(m_meshPass.descriptorSet, meshPassDescriptorWrites);
+
+ return true;
+}
+
+void App::run() {
+
+ auto frameStartTime = std::chrono::system_clock::now();
+ const auto appStartTime = std::chrono::system_clock::now();
+ const vkcv::ImageHandle swapchainInput = vkcv::ImageHandle::createSwapchainImageHandle();
+ const vkcv::DrawcallInfo skyDrawcall(m_cubeMesh.mesh, {}, 1);
+
+ vkcv::gui::GUI gui(m_core, m_window);
+
+ eMotionVectorVisualisationMode motionVectorVisualisationMode = eMotionVectorVisualisationMode::None;
+ eMotionBlurMode motionBlurMode = eMotionBlurMode::Default;
+
+ bool freezeFrame = false;
+ float motionBlurTileOffsetLength = 3;
+ float objectVerticalSpeed = 5;
+ float objectAmplitude = 0;
+ float objectMeanHeight = 1;
+ float objectRotationSpeedX = 5;
+ float objectRotationSpeedY = 5;
+ int cameraShutterSpeedInverse = 24;
+ float motionVectorVisualisationRange = 0.008;
+ float motionBlurFastPathThreshold = 1;
+
+ glm::mat4 viewProjection = m_cameraManager.getActiveCamera().getMVP();
+ glm::mat4 viewProjectionPrevious = m_cameraManager.getActiveCamera().getMVP();
+
+ struct Object {
+ MeshResources meshResources;
+ glm::mat4 modelMatrix = glm::mat4(1.f);
+ glm::mat4 mvp = glm::mat4(1.f);
+ glm::mat4 mvpPrevious = glm::mat4(1.f);
+ std::function<void(float, Object&)> modelMatrixUpdate;
+ };
+ std::vector<Object> sceneObjects;
+
+ Object ground;
+ ground.meshResources = m_groundMesh;
+ sceneObjects.push_back(ground);
+
+ Object sphere;
+ sphere.meshResources = m_cubeMesh;
+ sphere.modelMatrixUpdate = [&](float time, Object& obj) {
+ const float currentHeight = objectMeanHeight + objectAmplitude * glm::sin(time * objectVerticalSpeed);
+ const glm::mat4 translation = glm::translate(glm::mat4(1), glm::vec3(0, currentHeight, 0));
+ const glm::mat4 rotationX = glm::rotate(glm::mat4(1), objectRotationSpeedX * time, glm::vec3(1, 0, 0));
+ const glm::mat4 rotationY = glm::rotate(glm::mat4(1), objectRotationSpeedY * time, glm::vec3(0, 1, 0));
+ obj.modelMatrix = translation * rotationX * rotationY;
+ };
+ sceneObjects.push_back(sphere);
+
+ bool spaceWasPressed = false;
+
+ m_window.e_key.add([&](int key, int scancode, int action, int mods) {
+ if (key == GLFW_KEY_SPACE) {
+ if (action == GLFW_PRESS) {
+ if (!spaceWasPressed) {
+ freezeFrame = !freezeFrame;
+ }
+ spaceWasPressed = true;
+ }
+ else if (action == GLFW_RELEASE) {
+ spaceWasPressed = false;
+ }
+ }
+ });
+
+ auto frameEndTime = std::chrono::system_clock::now();
+
+ while (m_window.isWindowOpen()) {
+
+ vkcv::Window::pollEvents();
+
+ if (!freezeFrame) {
+
+ frameStartTime = frameEndTime;
+ viewProjectionPrevious = viewProjection;
+
+ for (Object& obj : sceneObjects) {
+ obj.mvpPrevious = obj.mvp;
+ }
+ }
+
+ if (m_window.getHeight() == 0 || m_window.getWidth() == 0)
+ continue;
+
+ uint32_t swapchainWidth, swapchainHeight;
+ if (!m_core.beginFrame(swapchainWidth, swapchainHeight))
+ continue;
+
+ const bool hasResolutionChanged = (swapchainWidth != m_windowWidth) || (swapchainHeight != m_windowHeight);
+ if (hasResolutionChanged) {
+ m_windowWidth = swapchainWidth;
+ m_windowHeight = swapchainHeight;
+
+ m_renderTargets = createRenderTargets(m_core, m_windowWidth, m_windowHeight);
+ m_motionBlur.setResolution(m_windowWidth, m_windowHeight);
+ }
+
+ if(!freezeFrame)
+ frameEndTime = std::chrono::system_clock::now();
+
+ const float microsecondToSecond = 0.000001;
+ const float fDeltaTimeSeconds = microsecondToSecond * std::chrono::duration_cast<std::chrono::microseconds>(frameEndTime - frameStartTime).count();
+
+ m_cameraManager.update(fDeltaTimeSeconds);
+
+ const auto time = frameEndTime - appStartTime;
+ const float fCurrentTime = std::chrono::duration_cast<std::chrono::milliseconds>(time).count() * 0.001f;
+
+ // update matrices
+ if (!freezeFrame) {
+
+ viewProjection = m_cameraManager.getActiveCamera().getMVP();
+
+ for (Object& obj : sceneObjects) {
+ if (obj.modelMatrixUpdate) {
+ obj.modelMatrixUpdate(fCurrentTime, obj);
+ }
+ obj.mvp = viewProjection * obj.modelMatrix;
+ }
+ }
+
+ const vkcv::CommandStreamHandle cmdStream = m_core.createCommandStream(vkcv::QueueType::Graphics);
+
+ // prepass
+ vkcv::PushConstants prepassPushConstants(sizeof(glm::mat4) * 2);
+
+ for (const Object& obj : sceneObjects) {
+ glm::mat4 prepassMatrices[2] = { obj.mvp, obj.mvpPrevious };
+ prepassPushConstants.appendDrawcall(prepassMatrices);
+ }
+
+ const std::vector<vkcv::ImageHandle> prepassRenderTargets = {
+ m_renderTargets.motionBuffer,
+ m_renderTargets.depthBuffer };
+
+ std::vector<vkcv::DrawcallInfo> prepassSceneDrawcalls;
+ for (const Object& obj : sceneObjects) {
+ prepassSceneDrawcalls.push_back(vkcv::DrawcallInfo(obj.meshResources.mesh, {}));
+ }
+
+ m_core.recordDrawcallsToCmdStream(
+ cmdStream,
+ m_prePass.renderPass,
+ m_prePass.pipeline,
+ prepassPushConstants,
+ prepassSceneDrawcalls,
+ prepassRenderTargets);
+
+ // sky prepass
+ glm::mat4 skyPrepassMatrices[2] = {
+ viewProjection,
+ viewProjectionPrevious };
+ vkcv::PushConstants skyPrepassPushConstants(sizeof(glm::mat4) * 2);
+ skyPrepassPushConstants.appendDrawcall(skyPrepassMatrices);
+
+ m_core.recordDrawcallsToCmdStream(
+ cmdStream,
+ m_skyPrePass.renderPass,
+ m_skyPrePass.pipeline,
+ skyPrepassPushConstants,
+ { skyDrawcall },
+ prepassRenderTargets);
+
+ // main pass
+ const std::vector<vkcv::ImageHandle> renderTargets = {
+ m_renderTargets.colorBuffer,
+ m_renderTargets.depthBuffer };
+
+ vkcv::PushConstants meshPushConstants(2 * sizeof(glm::mat4));
+ for (const Object& obj : sceneObjects) {
+ glm::mat4 matrices[2] = { obj.mvp, obj.modelMatrix };
+ meshPushConstants.appendDrawcall(matrices);
+ }
+
+ std::vector<vkcv::DrawcallInfo> forwardSceneDrawcalls;
+ for (const Object& obj : sceneObjects) {
+ forwardSceneDrawcalls.push_back(vkcv::DrawcallInfo(
+ obj.meshResources.mesh,
+ { vkcv::DescriptorSetUsage(0, m_core.getDescriptorSet(m_meshPass.descriptorSet).vulkanHandle) }));
+ }
+
+ m_core.recordDrawcallsToCmdStream(
+ cmdStream,
+ m_meshPass.renderPass,
+ m_meshPass.pipeline,
+ meshPushConstants,
+ forwardSceneDrawcalls,
+ renderTargets);
+
+ // sky
+ vkcv::PushConstants skyPushConstants(sizeof(glm::mat4));
+ skyPushConstants.appendDrawcall(viewProjection);
+
+ m_core.recordDrawcallsToCmdStream(
+ cmdStream,
+ m_skyPass.renderPass,
+ m_skyPass.pipeline,
+ skyPushConstants,
+ { skyDrawcall },
+ renderTargets);
+
+ // motion blur
+ vkcv::ImageHandle motionBlurOutput;
+
+ if (motionVectorVisualisationMode == eMotionVectorVisualisationMode::None) {
+ float cameraNear;
+ float cameraFar;
+ m_cameraManager.getActiveCamera().getNearFar(cameraNear, cameraFar);
+
+ motionBlurOutput = m_motionBlur.render(
+ cmdStream,
+ m_renderTargets.motionBuffer,
+ m_renderTargets.colorBuffer,
+ m_renderTargets.depthBuffer,
+ motionBlurMode,
+ cameraNear,
+ cameraFar,
+ fDeltaTimeSeconds,
+ cameraShutterSpeedInverse,
+ motionBlurTileOffsetLength,
+ motionBlurFastPathThreshold);
+ }
+ else {
+ motionBlurOutput = m_motionBlur.renderMotionVectorVisualisation(
+ cmdStream,
+ m_renderTargets.motionBuffer,
+ motionVectorVisualisationMode,
+ motionVectorVisualisationRange);
+ }
+
+ // gamma correction
+ vkcv::DescriptorWrites gammaCorrectionDescriptorWrites;
+ gammaCorrectionDescriptorWrites.sampledImageWrites = {
+ vkcv::SampledImageDescriptorWrite(0, motionBlurOutput) };
+ gammaCorrectionDescriptorWrites.samplerWrites = {
+ vkcv::SamplerDescriptorWrite(1, m_linearSampler) };
+ gammaCorrectionDescriptorWrites.storageImageWrites = {
+ vkcv::StorageImageDescriptorWrite(2, swapchainInput) };
+
+ m_core.writeDescriptorSet(m_gammaCorrectionPass.descriptorSet, gammaCorrectionDescriptorWrites);
+
+ m_core.prepareImageForSampling(cmdStream, motionBlurOutput);
+ m_core.prepareImageForStorage (cmdStream, swapchainInput);
+
+ const uint32_t fullScreenImageDispatch[3] = {
+ static_cast<uint32_t>((m_windowWidth + 7) / 8),
+ static_cast<uint32_t>((m_windowHeight + 7) / 8),
+ static_cast<uint32_t>(1) };
+
+ m_core.recordComputeDispatchToCmdStream(
+ cmdStream,
+ m_gammaCorrectionPass.pipeline,
+ fullScreenImageDispatch,
+ { vkcv::DescriptorSetUsage(0, m_core.getDescriptorSet(m_gammaCorrectionPass.descriptorSet).vulkanHandle) },
+ vkcv::PushConstants(0));
+
+ m_core.prepareSwapchainImageForPresent(cmdStream);
+ m_core.submitCommandStream(cmdStream);
+
+ gui.beginGUI();
+ ImGui::Begin("Settings");
+
+ ImGui::Checkbox("Freeze frame", &freezeFrame);
+ ImGui::InputFloat("Motion tile offset length", &motionBlurTileOffsetLength);
+ ImGui::InputFloat("Motion blur fast path threshold", &motionBlurFastPathThreshold);
+
+ ImGui::Combo(
+ "Motion blur mode",
+ reinterpret_cast<int*>(&motionBlurMode),
+ MotionBlurModeLabels,
+ static_cast<int>(eMotionBlurMode::OptionCount));
+
+ ImGui::Combo(
+ "Debug view",
+ reinterpret_cast<int*>(&motionVectorVisualisationMode),
+ MotionVectorVisualisationModeLabels,
+ static_cast<int>(eMotionVectorVisualisationMode::OptionCount));
+
+ if (motionVectorVisualisationMode != eMotionVectorVisualisationMode::None)
+ ImGui::InputFloat("Motion vector visualisation range", &motionVectorVisualisationRange);
+
+ ImGui::InputInt("Camera shutter speed inverse", &cameraShutterSpeedInverse);
+
+ ImGui::InputFloat("Object movement speed", &objectVerticalSpeed);
+ ImGui::InputFloat("Object movement amplitude", &objectAmplitude);
+ ImGui::InputFloat("Object mean height", &objectMeanHeight);
+ ImGui::InputFloat("Object rotation speed X", &objectRotationSpeedX);
+ ImGui::InputFloat("Object rotation speed Y", &objectRotationSpeedY);
+
+ ImGui::End();
+ gui.endGUI();
+
+ m_core.endFrame();
+ }
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/src/App.hpp b/projects/indirect_dispatch/src/App.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..d580793b0fdc4e7dc8c8654d29a75f04e14ea422
--- /dev/null
+++ b/projects/indirect_dispatch/src/App.hpp
@@ -0,0 +1,38 @@
+#pragma once
+#include <vkcv/Core.hpp>
+#include <vkcv/camera/CameraManager.hpp>
+#include "AppSetup.hpp"
+#include "MotionBlur.hpp"
+
+class App {
+public:
+ App();
+ bool initialize();
+ void run();
+private:
+ const char* m_applicationName;
+
+ int m_windowWidth;
+ int m_windowHeight;
+
+ vkcv::Window m_window;
+ vkcv::Core m_core;
+ vkcv::camera::CameraManager m_cameraManager;
+
+ MotionBlur m_motionBlur;
+
+ vkcv::ImageHandle m_gridTexture;
+
+ MeshResources m_cubeMesh;
+ MeshResources m_groundMesh;
+
+ GraphicPassHandles m_meshPass;
+ GraphicPassHandles m_skyPass;
+ GraphicPassHandles m_prePass;
+ GraphicPassHandles m_skyPrePass;
+
+ ComputePassHandles m_gammaCorrectionPass;
+
+ AppRenderTargets m_renderTargets;
+ vkcv::SamplerHandle m_linearSampler;
+};
\ No newline at end of file
diff --git a/projects/indirect_dispatch/src/AppConfig.hpp b/projects/indirect_dispatch/src/AppConfig.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..c89c34ea8e3c0c45708ca998a642faffb31403d3
--- /dev/null
+++ b/projects/indirect_dispatch/src/AppConfig.hpp
@@ -0,0 +1,10 @@
+#pragma once
+#include "vulkan/vulkan.hpp"
+
+namespace AppConfig{
+ const int defaultWindowWidth = 1280;
+ const int defaultWindowHeight = 720;
+ const vk::Format depthBufferFormat = vk::Format::eD32Sfloat;
+ const vk::Format colorBufferFormat = vk::Format::eB10G11R11UfloatPack32;
+ const vk::Format motionBufferFormat = vk::Format::eR16G16Sfloat;
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/src/AppSetup.cpp b/projects/indirect_dispatch/src/AppSetup.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..267ac6bd8ef44dcee9b3a05d7204e8d33fbe86a7
--- /dev/null
+++ b/projects/indirect_dispatch/src/AppSetup.cpp
@@ -0,0 +1,301 @@
+#include "AppSetup.hpp"
+#include "AppConfig.hpp"
+#include <vkcv/asset/asset_loader.hpp>
+#include <vkcv/shader/GLSLCompiler.hpp>
+
+bool loadMesh(vkcv::Core& core, const std::filesystem::path& path, MeshResources* outMesh) {
+ assert(outMesh);
+
+ vkcv::asset::Scene scene;
+ const int meshLoadResult = vkcv::asset::loadScene(path.string(), scene);
+
+ if (meshLoadResult != 1) {
+ vkcv_log(vkcv::LogLevel::ERROR, "Mesh loading failed");
+ return false;
+ }
+
+ if (scene.meshes.size() < 1) {
+ vkcv_log(vkcv::LogLevel::ERROR, "Cube mesh scene does not contain any vertex groups");
+ return false;
+ }
+ assert(!scene.vertexGroups.empty());
+
+ auto& vertexData = scene.vertexGroups[0].vertexBuffer;
+ auto& indexData = scene.vertexGroups[0].indexBuffer;
+
+ vkcv::Buffer vertexBuffer = core.createBuffer<uint8_t>(
+ vkcv::BufferType::VERTEX,
+ vertexData.data.size(),
+ vkcv::BufferMemoryType::DEVICE_LOCAL);
+
+ vkcv::Buffer indexBuffer = core.createBuffer<uint8_t>(
+ vkcv::BufferType::INDEX,
+ indexData.data.size(),
+ vkcv::BufferMemoryType::DEVICE_LOCAL);
+
+ vertexBuffer.fill(vertexData.data);
+ indexBuffer.fill(indexData.data);
+
+ outMesh->vertexBuffer = vertexBuffer.getHandle();
+ outMesh->indexBuffer = indexBuffer.getHandle();
+
+ auto& attributes = vertexData.attributes;
+
+ std::sort(attributes.begin(), attributes.end(),
+ [](const vkcv::asset::VertexAttribute& x, const vkcv::asset::VertexAttribute& y) {
+ return static_cast<uint32_t>(x.type) < static_cast<uint32_t>(y.type);
+ });
+
+ const std::vector<vkcv::VertexBufferBinding> vertexBufferBindings = {
+ vkcv::VertexBufferBinding(static_cast<vk::DeviceSize>(attributes[0].offset), vertexBuffer.getVulkanHandle()),
+ vkcv::VertexBufferBinding(static_cast<vk::DeviceSize>(attributes[1].offset), vertexBuffer.getVulkanHandle()),
+ vkcv::VertexBufferBinding(static_cast<vk::DeviceSize>(attributes[2].offset), vertexBuffer.getVulkanHandle()) };
+
+ outMesh->mesh = vkcv::Mesh(vertexBufferBindings, indexBuffer.getVulkanHandle(), scene.vertexGroups[0].numIndices);
+
+ return true;
+}
+
+bool loadImage(vkcv::Core& core, const std::filesystem::path& path, vkcv::ImageHandle* outImage) {
+
+ assert(outImage);
+
+ const vkcv::asset::Texture textureData = vkcv::asset::loadTexture(path);
+
+ if (textureData.channels != 4) {
+ vkcv_log(vkcv::LogLevel::ERROR, "Expecting image with four components");
+ return false;
+ }
+
+ vkcv::Image image = core.createImage(
+ vk::Format::eR8G8B8A8Srgb,
+ textureData.width,
+ textureData.height,
+ 1,
+ true);
+
+ image.fill(textureData.data.data(), textureData.data.size());
+ image.generateMipChainImmediate();
+ image.switchLayout(vk::ImageLayout::eReadOnlyOptimalKHR);
+
+ *outImage = image.getHandle();
+ return true;
+}
+
+bool loadGraphicPass(
+ vkcv::Core& core,
+ const std::filesystem::path vertexPath,
+ const std::filesystem::path fragmentPath,
+ const vkcv::PassConfig& passConfig,
+ const vkcv::DepthTest depthTest,
+ GraphicPassHandles* outPassHandles) {
+
+ assert(outPassHandles);
+
+ outPassHandles->renderPass = core.createPass(passConfig);
+
+ if (!outPassHandles->renderPass) {
+ vkcv_log(vkcv::LogLevel::ERROR, "Error: Could not create renderpass");
+ return false;
+ }
+
+ vkcv::ShaderProgram shaderProgram;
+ vkcv::shader::GLSLCompiler compiler;
+
+ compiler.compile(vkcv::ShaderStage::VERTEX, vertexPath,
+ [&shaderProgram](vkcv::ShaderStage shaderStage, const std::filesystem::path& path) {
+ shaderProgram.addShader(shaderStage, path);
+ });
+
+ compiler.compile(vkcv::ShaderStage::FRAGMENT, fragmentPath,
+ [&shaderProgram](vkcv::ShaderStage shaderStage, const std::filesystem::path& path) {
+ shaderProgram.addShader(shaderStage, path);
+ });
+
+ const std::vector<vkcv::VertexAttachment> vertexAttachments = shaderProgram.getVertexAttachments();
+ std::vector<vkcv::VertexBinding> bindings;
+ for (size_t i = 0; i < vertexAttachments.size(); i++) {
+ bindings.push_back(vkcv::VertexBinding(i, { vertexAttachments[i] }));
+ }
+
+ const vkcv::VertexLayout vertexLayout(bindings);
+
+ const auto descriptorBindings = shaderProgram.getReflectedDescriptors();
+ const bool hasDescriptor = descriptorBindings.size() > 0;
+ if (hasDescriptor)
+ outPassHandles->descriptorSet = core.createDescriptorSet(descriptorBindings[0]);
+
+ std::vector<vk::DescriptorSetLayout> descriptorLayouts;
+ if (hasDescriptor)
+ descriptorLayouts.push_back(core.getDescriptorSet(outPassHandles->descriptorSet).layout);
+
+ vkcv::PipelineConfig pipelineConfig{
+ shaderProgram,
+ UINT32_MAX,
+ UINT32_MAX,
+ outPassHandles->renderPass,
+ { vertexLayout },
+ descriptorLayouts,
+ true };
+ pipelineConfig.m_depthTest = depthTest;
+ outPassHandles->pipeline = core.createGraphicsPipeline(pipelineConfig);
+
+ if (!outPassHandles->pipeline) {
+ vkcv_log(vkcv::LogLevel::ERROR, "Error: Could not create graphics pipeline");
+ return false;
+ }
+
+ return true;
+}
+
+bool loadMeshPass(vkcv::Core& core, GraphicPassHandles* outHandles) {
+
+ assert(outHandles);
+
+ vkcv::AttachmentDescription colorAttachment(
+ vkcv::AttachmentOperation::STORE,
+ vkcv::AttachmentOperation::DONT_CARE,
+ AppConfig::colorBufferFormat);
+
+ vkcv::AttachmentDescription depthAttachment(
+ vkcv::AttachmentOperation::STORE,
+ vkcv::AttachmentOperation::LOAD,
+ AppConfig::depthBufferFormat);
+
+ return loadGraphicPass(
+ core,
+ "resources/shaders/mesh.vert",
+ "resources/shaders/mesh.frag",
+ vkcv::PassConfig({ colorAttachment, depthAttachment }),
+ vkcv::DepthTest::Equal,
+ outHandles);
+}
+
+bool loadSkyPass(vkcv::Core& core, GraphicPassHandles* outHandles) {
+
+ assert(outHandles);
+
+ vkcv::AttachmentDescription colorAttachment(
+ vkcv::AttachmentOperation::STORE,
+ vkcv::AttachmentOperation::LOAD,
+ AppConfig::colorBufferFormat);
+
+ vkcv::AttachmentDescription depthAttachment(
+ vkcv::AttachmentOperation::STORE,
+ vkcv::AttachmentOperation::LOAD,
+ AppConfig::depthBufferFormat);
+
+ return loadGraphicPass(
+ core,
+ "resources/shaders/sky.vert",
+ "resources/shaders/sky.frag",
+ vkcv::PassConfig({ colorAttachment, depthAttachment }),
+ vkcv::DepthTest::Equal,
+ outHandles);
+}
+
+bool loadPrePass(vkcv::Core& core, GraphicPassHandles* outHandles) {
+ assert(outHandles);
+
+ vkcv::AttachmentDescription motionAttachment(
+ vkcv::AttachmentOperation::STORE,
+ vkcv::AttachmentOperation::CLEAR,
+ AppConfig::motionBufferFormat);
+
+ vkcv::AttachmentDescription depthAttachment(
+ vkcv::AttachmentOperation::STORE,
+ vkcv::AttachmentOperation::CLEAR,
+ AppConfig::depthBufferFormat);
+
+ return loadGraphicPass(
+ core,
+ "resources/shaders/prepass.vert",
+ "resources/shaders/prepass.frag",
+ vkcv::PassConfig({ motionAttachment, depthAttachment }),
+ vkcv::DepthTest::LessEqual,
+ outHandles);
+}
+
+bool loadSkyPrePass(vkcv::Core& core, GraphicPassHandles* outHandles) {
+ assert(outHandles);
+
+ vkcv::AttachmentDescription motionAttachment(
+ vkcv::AttachmentOperation::STORE,
+ vkcv::AttachmentOperation::LOAD,
+ AppConfig::motionBufferFormat);
+
+ vkcv::AttachmentDescription depthAttachment(
+ vkcv::AttachmentOperation::STORE,
+ vkcv::AttachmentOperation::LOAD,
+ AppConfig::depthBufferFormat);
+
+ return loadGraphicPass(
+ core,
+ "resources/shaders/skyPrepass.vert",
+ "resources/shaders/skyPrepass.frag",
+ vkcv::PassConfig({ motionAttachment, depthAttachment }),
+ vkcv::DepthTest::LessEqual,
+ outHandles);
+}
+
+bool loadComputePass(vkcv::Core& core, const std::filesystem::path& path, ComputePassHandles* outComputePass) {
+
+ assert(outComputePass);
+ vkcv::ShaderProgram shaderProgram;
+ vkcv::shader::GLSLCompiler compiler;
+
+ compiler.compile(vkcv::ShaderStage::COMPUTE, path,
+ [&](vkcv::ShaderStage shaderStage, const std::filesystem::path& path) {
+ shaderProgram.addShader(shaderStage, path);
+ });
+
+ if (shaderProgram.getReflectedDescriptors().size() < 1) {
+ vkcv_log(vkcv::LogLevel::ERROR, "Compute shader has no descriptor set");
+ return false;
+ }
+
+ outComputePass->descriptorSet = core.createDescriptorSet(shaderProgram.getReflectedDescriptors()[0]);
+
+ outComputePass->pipeline = core.createComputePipeline(
+ shaderProgram,
+ { core.getDescriptorSet(outComputePass->descriptorSet).layout });
+
+ if (!outComputePass->pipeline) {
+ vkcv_log(vkcv::LogLevel::ERROR, "Compute shader pipeline creation failed");
+ return false;
+ }
+
+ return true;
+}
+
+AppRenderTargets createRenderTargets(vkcv::Core& core, const uint32_t width, const uint32_t height) {
+
+ AppRenderTargets targets;
+
+ targets.depthBuffer = core.createImage(
+ AppConfig::depthBufferFormat,
+ width,
+ height,
+ 1,
+ false).getHandle();
+
+ targets.colorBuffer = core.createImage(
+ AppConfig::colorBufferFormat,
+ width,
+ height,
+ 1,
+ false,
+ false,
+ true).getHandle();
+
+ targets.motionBuffer = core.createImage(
+ AppConfig::motionBufferFormat,
+ width,
+ height,
+ 1,
+ false,
+ false,
+ true).getHandle();
+
+ return targets;
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/src/AppSetup.hpp b/projects/indirect_dispatch/src/AppSetup.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..3125bc516b553de715d6e51bbda259e3e16f758f
--- /dev/null
+++ b/projects/indirect_dispatch/src/AppSetup.hpp
@@ -0,0 +1,47 @@
+#pragma once
+#include <vkcv/Core.hpp>
+
+struct AppRenderTargets {
+ vkcv::ImageHandle depthBuffer;
+ vkcv::ImageHandle colorBuffer;
+ vkcv::ImageHandle motionBuffer;
+};
+
+struct GraphicPassHandles {
+ vkcv::PipelineHandle pipeline;
+ vkcv::PassHandle renderPass;
+ vkcv::DescriptorSetHandle descriptorSet;
+};
+
+struct ComputePassHandles {
+ vkcv::PipelineHandle pipeline;
+ vkcv::DescriptorSetHandle descriptorSet;
+};
+
+struct MeshResources {
+ vkcv::Mesh mesh;
+ vkcv::BufferHandle vertexBuffer;
+ vkcv::BufferHandle indexBuffer;
+};
+
+// loads position, uv and normal of the first mesh in a scene
+bool loadMesh(vkcv::Core& core, const std::filesystem::path& path, MeshResources* outMesh);
+
+bool loadImage(vkcv::Core& core, const std::filesystem::path& path, vkcv::ImageHandle* outImage);
+
+bool loadGraphicPass(
+ vkcv::Core& core,
+ const std::filesystem::path vertexPath,
+ const std::filesystem::path fragmentPath,
+ const vkcv::PassConfig& passConfig,
+ const vkcv::DepthTest depthTest,
+ GraphicPassHandles* outPassHandles);
+
+bool loadMeshPass (vkcv::Core& core, GraphicPassHandles* outHandles);
+bool loadSkyPass (vkcv::Core& core, GraphicPassHandles* outHandles);
+bool loadPrePass (vkcv::Core& core, GraphicPassHandles* outHandles);
+bool loadSkyPrePass(vkcv::Core& core, GraphicPassHandles* outHandles);
+
+bool loadComputePass(vkcv::Core& core, const std::filesystem::path& path, ComputePassHandles* outComputePass);
+
+AppRenderTargets createRenderTargets(vkcv::Core& core, const uint32_t width, const uint32_t height);
\ No newline at end of file
diff --git a/projects/indirect_dispatch/src/MotionBlur.cpp b/projects/indirect_dispatch/src/MotionBlur.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..49f650a97e2fea5821959ae53f468e6fe7de6ffe
--- /dev/null
+++ b/projects/indirect_dispatch/src/MotionBlur.cpp
@@ -0,0 +1,437 @@
+#include "MotionBlur.hpp"
+#include "MotionBlurConfig.hpp"
+#include "MotionBlurSetup.hpp"
+#include <array>
+
+std::array<uint32_t, 3> computeFullscreenDispatchSize(
+ const uint32_t imageWidth,
+ const uint32_t imageHeight,
+ const uint32_t localGroupSize) {
+
+ // optimized divide and ceil
+ return std::array<uint32_t, 3>{
+ static_cast<uint32_t>(imageWidth + (localGroupSize - 1)) / localGroupSize,
+ static_cast<uint32_t>(imageHeight + (localGroupSize - 1)) / localGroupSize,
+ static_cast<uint32_t>(1) };
+}
+
+bool MotionBlur::initialize(vkcv::Core* corePtr, const uint32_t targetWidth, const uint32_t targetHeight) {
+
+ if (!corePtr) {
+ vkcv_log(vkcv::LogLevel::ERROR, "MotionBlur got invalid corePtr")
+ return false;
+ }
+
+ m_core = corePtr;
+
+ if (!loadComputePass(*m_core, "resources/shaders/motionBlur.comp", &m_motionBlurPass))
+ return false;
+
+ if (!loadComputePass(*m_core, "resources/shaders/motionVectorMinMax.comp", &m_motionVectorMinMaxPass))
+ return false;
+
+ if (!loadComputePass(*m_core, "resources/shaders/motionVectorMinMaxNeighbourhood.comp", &m_motionVectorMinMaxNeighbourhoodPass))
+ return false;
+
+ if (!loadComputePass(*m_core, "resources/shaders/motionVectorVisualisation.comp", &m_motionVectorVisualisationPass))
+ return false;
+
+ if (!loadComputePass(*m_core, "resources/shaders/motionBlurColorCopy.comp", &m_colorCopyPass))
+ return false;
+
+ if (!loadComputePass(*m_core, "resources/shaders/motionBlurTileClassification.comp", &m_tileClassificationPass))
+ return false;
+
+ if (!loadComputePass(*m_core, "resources/shaders/motionBlurWorkTileReset.comp", &m_tileResetPass))
+ return false;
+
+ if (!loadComputePass(*m_core, "resources/shaders/motionBlurTileClassificationVis.comp", &m_tileVisualisationPass))
+ return false;
+
+ if (!loadComputePass(*m_core, "resources/shaders/motionBlurFastPath.comp", &m_motionBlurFastPathPass))
+ return false;
+
+ // work tile buffers and descriptors
+ const uint32_t workTileBufferSize = static_cast<uint32_t>(2 * sizeof(uint32_t)) * (3 +
+ ((MotionBlurConfig::maxWidth + MotionBlurConfig::maxMotionTileSize - 1) / MotionBlurConfig::maxMotionTileSize) *
+ ((MotionBlurConfig::maxHeight + MotionBlurConfig::maxMotionTileSize - 1) / MotionBlurConfig::maxMotionTileSize));
+
+ m_copyPathWorkTileBuffer = m_core->createBuffer<uint32_t>(
+ vkcv::BufferType::STORAGE,
+ workTileBufferSize,
+ vkcv::BufferMemoryType::DEVICE_LOCAL,
+ true).getHandle();
+
+ m_fullPathWorkTileBuffer = m_core->createBuffer<uint32_t>(
+ vkcv::BufferType::STORAGE,
+ workTileBufferSize,
+ vkcv::BufferMemoryType::DEVICE_LOCAL,
+ true).getHandle();
+
+ m_fastPathWorkTileBuffer = m_core->createBuffer<uint32_t>(
+ vkcv::BufferType::STORAGE,
+ workTileBufferSize,
+ vkcv::BufferMemoryType::DEVICE_LOCAL,
+ true).getHandle();
+
+ vkcv::DescriptorWrites tileResetDescriptorWrites;
+ tileResetDescriptorWrites.storageBufferWrites = {
+ vkcv::BufferDescriptorWrite(0, m_fullPathWorkTileBuffer),
+ vkcv::BufferDescriptorWrite(1, m_copyPathWorkTileBuffer),
+ vkcv::BufferDescriptorWrite(2, m_fastPathWorkTileBuffer) };
+
+ m_core->writeDescriptorSet(m_tileResetPass.descriptorSet, tileResetDescriptorWrites);
+
+
+ m_renderTargets = MotionBlurSetup::createRenderTargets(targetWidth, targetHeight, *m_core);
+
+ m_nearestSampler = m_core->createSampler(
+ vkcv::SamplerFilterType::NEAREST,
+ vkcv::SamplerFilterType::NEAREST,
+ vkcv::SamplerMipmapMode::NEAREST,
+ vkcv::SamplerAddressMode::CLAMP_TO_EDGE);
+
+ return true;
+}
+
+void MotionBlur::setResolution(const uint32_t targetWidth, const uint32_t targetHeight) {
+ m_renderTargets = MotionBlurSetup::createRenderTargets(targetWidth, targetHeight, *m_core);
+}
+
+vkcv::ImageHandle MotionBlur::render(
+ const vkcv::CommandStreamHandle cmdStream,
+ const vkcv::ImageHandle motionBufferFullRes,
+ const vkcv::ImageHandle colorBuffer,
+ const vkcv::ImageHandle depthBuffer,
+ const eMotionBlurMode mode,
+ const float cameraNear,
+ const float cameraFar,
+ const float deltaTimeSeconds,
+ const float cameraShutterSpeedInverse,
+ const float motionTileOffsetLength,
+ const float fastPathThreshold) {
+
+ computeMotionTiles(cmdStream, motionBufferFullRes);
+
+ // work tile reset
+ const uint32_t dispatchSizeOne[3] = { 1, 1, 1 };
+
+ m_core->recordComputeDispatchToCmdStream(
+ cmdStream,
+ m_tileResetPass.pipeline,
+ dispatchSizeOne,
+ { vkcv::DescriptorSetUsage(0, m_core->getDescriptorSet(m_tileResetPass.descriptorSet).vulkanHandle) },
+ vkcv::PushConstants(0));
+
+ m_core->recordBufferMemoryBarrier(cmdStream, m_fullPathWorkTileBuffer);
+ m_core->recordBufferMemoryBarrier(cmdStream, m_copyPathWorkTileBuffer);
+ m_core->recordBufferMemoryBarrier(cmdStream, m_fastPathWorkTileBuffer);
+
+ // work tile classification
+ vkcv::DescriptorWrites tileClassificationDescriptorWrites;
+ tileClassificationDescriptorWrites.sampledImageWrites = {
+ vkcv::SampledImageDescriptorWrite(0, m_renderTargets.motionMaxNeighbourhood),
+ vkcv::SampledImageDescriptorWrite(1, m_renderTargets.motionMinNeighbourhood) };
+ tileClassificationDescriptorWrites.samplerWrites = {
+ vkcv::SamplerDescriptorWrite(2, m_nearestSampler) };
+ tileClassificationDescriptorWrites.storageBufferWrites = {
+ vkcv::BufferDescriptorWrite(3, m_fullPathWorkTileBuffer),
+ vkcv::BufferDescriptorWrite(4, m_copyPathWorkTileBuffer),
+ vkcv::BufferDescriptorWrite(5, m_fastPathWorkTileBuffer) };
+
+ m_core->writeDescriptorSet(m_tileClassificationPass.descriptorSet, tileClassificationDescriptorWrites);
+
+ const auto tileClassificationDispatch = computeFullscreenDispatchSize(
+ m_core->getImageWidth(m_renderTargets.motionMaxNeighbourhood),
+ m_core->getImageHeight(m_renderTargets.motionMaxNeighbourhood),
+ 8);
+
+ struct ClassificationConstants {
+ uint32_t width;
+ uint32_t height;
+ float fastPathThreshold;
+ };
+ ClassificationConstants classificationConstants;
+ classificationConstants.width = m_core->getImageWidth(m_renderTargets.outputColor);
+ classificationConstants.height = m_core->getImageHeight(m_renderTargets.outputColor);
+ classificationConstants.fastPathThreshold = fastPathThreshold;
+
+ vkcv::PushConstants classificationPushConstants(sizeof(ClassificationConstants));
+ classificationPushConstants.appendDrawcall(classificationConstants);
+
+ m_core->prepareImageForSampling(cmdStream, m_renderTargets.motionMaxNeighbourhood);
+ m_core->prepareImageForSampling(cmdStream, m_renderTargets.motionMinNeighbourhood);
+
+ m_core->recordComputeDispatchToCmdStream(
+ cmdStream,
+ m_tileClassificationPass.pipeline,
+ tileClassificationDispatch.data(),
+ { vkcv::DescriptorSetUsage(0, m_core->getDescriptorSet(m_tileClassificationPass.descriptorSet).vulkanHandle) },
+ classificationPushConstants);
+
+ m_core->recordBufferMemoryBarrier(cmdStream, m_fullPathWorkTileBuffer);
+ m_core->recordBufferMemoryBarrier(cmdStream, m_copyPathWorkTileBuffer);
+ m_core->recordBufferMemoryBarrier(cmdStream, m_fastPathWorkTileBuffer);
+
+ vkcv::DescriptorWrites motionBlurDescriptorWrites;
+ motionBlurDescriptorWrites.sampledImageWrites = {
+ vkcv::SampledImageDescriptorWrite(0, colorBuffer),
+ vkcv::SampledImageDescriptorWrite(1, depthBuffer),
+ vkcv::SampledImageDescriptorWrite(2, motionBufferFullRes),
+ vkcv::SampledImageDescriptorWrite(3, m_renderTargets.motionMaxNeighbourhood) };
+ motionBlurDescriptorWrites.samplerWrites = {
+ vkcv::SamplerDescriptorWrite(4, m_nearestSampler) };
+ motionBlurDescriptorWrites.storageImageWrites = {
+ vkcv::StorageImageDescriptorWrite(5, m_renderTargets.outputColor) };
+ motionBlurDescriptorWrites.storageBufferWrites = {
+ vkcv::BufferDescriptorWrite(6, m_fullPathWorkTileBuffer)};
+
+ m_core->writeDescriptorSet(m_motionBlurPass.descriptorSet, motionBlurDescriptorWrites);
+
+
+ vkcv::DescriptorWrites colorCopyDescriptorWrites;
+ colorCopyDescriptorWrites.sampledImageWrites = {
+ vkcv::SampledImageDescriptorWrite(0, colorBuffer) };
+ colorCopyDescriptorWrites.samplerWrites = {
+ vkcv::SamplerDescriptorWrite(1, m_nearestSampler) };
+ colorCopyDescriptorWrites.storageImageWrites = {
+ vkcv::StorageImageDescriptorWrite(2, m_renderTargets.outputColor) };
+ colorCopyDescriptorWrites.storageBufferWrites = {
+ vkcv::BufferDescriptorWrite(3, m_copyPathWorkTileBuffer) };
+
+ m_core->writeDescriptorSet(m_colorCopyPass.descriptorSet, colorCopyDescriptorWrites);
+
+
+ vkcv::DescriptorWrites fastPathDescriptorWrites;
+ fastPathDescriptorWrites.sampledImageWrites = {
+ vkcv::SampledImageDescriptorWrite(0, colorBuffer),
+ vkcv::SampledImageDescriptorWrite(1, m_renderTargets.motionMaxNeighbourhood) };
+ fastPathDescriptorWrites.samplerWrites = {
+ vkcv::SamplerDescriptorWrite(2, m_nearestSampler) };
+ fastPathDescriptorWrites.storageImageWrites = {
+ vkcv::StorageImageDescriptorWrite(3, m_renderTargets.outputColor) };
+ fastPathDescriptorWrites.storageBufferWrites = {
+ vkcv::BufferDescriptorWrite(4, m_fastPathWorkTileBuffer) };
+
+ m_core->writeDescriptorSet(m_motionBlurFastPathPass.descriptorSet, fastPathDescriptorWrites);
+
+ // must match layout in "motionBlur.comp"
+ struct MotionBlurConstantData {
+ float motionFactor;
+ float cameraNearPlane;
+ float cameraFarPlane;
+ float motionTileOffsetLength;
+ };
+ MotionBlurConstantData motionBlurConstantData;
+
+ const float deltaTimeMotionBlur = deltaTimeSeconds;
+
+ motionBlurConstantData.motionFactor = 1 / (deltaTimeMotionBlur * cameraShutterSpeedInverse);
+ motionBlurConstantData.cameraNearPlane = cameraNear;
+ motionBlurConstantData.cameraFarPlane = cameraFar;
+ motionBlurConstantData.motionTileOffsetLength = motionTileOffsetLength;
+
+ vkcv::PushConstants motionBlurPushConstants(sizeof(motionBlurConstantData));
+ motionBlurPushConstants.appendDrawcall(motionBlurConstantData);
+
+ struct FastPathConstants {
+ float motionFactor;
+ };
+ FastPathConstants fastPathConstants;
+ fastPathConstants.motionFactor = motionBlurConstantData.motionFactor;
+
+ vkcv::PushConstants fastPathPushConstants(sizeof(FastPathConstants));
+ fastPathPushConstants.appendDrawcall(fastPathConstants);
+
+ m_core->prepareImageForStorage(cmdStream, m_renderTargets.outputColor);
+ m_core->prepareImageForSampling(cmdStream, colorBuffer);
+ m_core->prepareImageForSampling(cmdStream, depthBuffer);
+ m_core->prepareImageForSampling(cmdStream, m_renderTargets.motionMaxNeighbourhood);
+
+ if (mode == eMotionBlurMode::Default) {
+ m_core->recordComputeIndirectDispatchToCmdStream(
+ cmdStream,
+ m_motionBlurPass.pipeline,
+ m_fullPathWorkTileBuffer,
+ 0,
+ { vkcv::DescriptorSetUsage(0, m_core->getDescriptorSet(m_motionBlurPass.descriptorSet).vulkanHandle) },
+ motionBlurPushConstants);
+
+ m_core->recordComputeIndirectDispatchToCmdStream(
+ cmdStream,
+ m_colorCopyPass.pipeline,
+ m_copyPathWorkTileBuffer,
+ 0,
+ { vkcv::DescriptorSetUsage(0, m_core->getDescriptorSet(m_colorCopyPass.descriptorSet).vulkanHandle) },
+ vkcv::PushConstants(0));
+
+ m_core->recordComputeIndirectDispatchToCmdStream(
+ cmdStream,
+ m_motionBlurFastPathPass.pipeline,
+ m_fastPathWorkTileBuffer,
+ 0,
+ { vkcv::DescriptorSetUsage(0, m_core->getDescriptorSet(m_motionBlurFastPathPass.descriptorSet).vulkanHandle) },
+ fastPathPushConstants);
+ }
+ else if(mode == eMotionBlurMode::Disabled) {
+ return colorBuffer;
+ }
+ else if (mode == eMotionBlurMode::TileVisualisation) {
+
+ vkcv::DescriptorWrites visualisationDescriptorWrites;
+ visualisationDescriptorWrites.sampledImageWrites = {
+ vkcv::SampledImageDescriptorWrite(0, colorBuffer) };
+ visualisationDescriptorWrites.samplerWrites = {
+ vkcv::SamplerDescriptorWrite(1, m_nearestSampler) };
+ visualisationDescriptorWrites.storageImageWrites = {
+ vkcv::StorageImageDescriptorWrite(2, m_renderTargets.outputColor)};
+ visualisationDescriptorWrites.storageBufferWrites = {
+ vkcv::BufferDescriptorWrite(3, m_fullPathWorkTileBuffer),
+ vkcv::BufferDescriptorWrite(4, m_copyPathWorkTileBuffer),
+ vkcv::BufferDescriptorWrite(5, m_fastPathWorkTileBuffer) };
+
+ m_core->writeDescriptorSet(m_tileVisualisationPass.descriptorSet, visualisationDescriptorWrites);
+
+ const uint32_t tileCount =
+ (m_core->getImageWidth(m_renderTargets.outputColor) + MotionBlurConfig::maxMotionTileSize - 1) / MotionBlurConfig::maxMotionTileSize *
+ (m_core->getImageHeight(m_renderTargets.outputColor) + MotionBlurConfig::maxMotionTileSize - 1) / MotionBlurConfig::maxMotionTileSize;
+
+ const uint32_t dispatchCounts[3] = {
+ tileCount,
+ 1,
+ 1 };
+
+ m_core->recordComputeDispatchToCmdStream(
+ cmdStream,
+ m_tileVisualisationPass.pipeline,
+ dispatchCounts,
+ { vkcv::DescriptorSetUsage(0, m_core->getDescriptorSet(m_tileVisualisationPass.descriptorSet).vulkanHandle) },
+ vkcv::PushConstants(0));
+ }
+ else {
+ vkcv_log(vkcv::LogLevel::ERROR, "Unknown eMotionBlurMode enum option");
+ return colorBuffer;
+ }
+
+ return m_renderTargets.outputColor;
+}
+
+vkcv::ImageHandle MotionBlur::renderMotionVectorVisualisation(
+ const vkcv::CommandStreamHandle cmdStream,
+ const vkcv::ImageHandle motionBuffer,
+ const eMotionVectorVisualisationMode mode,
+ const float velocityRange) {
+
+ computeMotionTiles(cmdStream, motionBuffer);
+
+ vkcv::ImageHandle visualisationInput;
+ if ( mode == eMotionVectorVisualisationMode::FullResolution)
+ visualisationInput = motionBuffer;
+ else if (mode == eMotionVectorVisualisationMode::MaxTile)
+ visualisationInput = m_renderTargets.motionMax;
+ else if (mode == eMotionVectorVisualisationMode::MaxTileNeighbourhood)
+ visualisationInput = m_renderTargets.motionMaxNeighbourhood;
+ else if (mode == eMotionVectorVisualisationMode::MinTile)
+ visualisationInput = m_renderTargets.motionMin;
+ else if (mode == eMotionVectorVisualisationMode::MinTileNeighbourhood)
+ visualisationInput = m_renderTargets.motionMinNeighbourhood;
+ else if (mode == eMotionVectorVisualisationMode::None) {
+ vkcv_log(vkcv::LogLevel::ERROR, "renderMotionVectorVisualisation called with visualisation mode 'None'");
+ return motionBuffer;
+ }
+ else {
+ vkcv_log(vkcv::LogLevel::ERROR, "Unknown eDebugView enum value");
+ return motionBuffer;
+ }
+
+ vkcv::DescriptorWrites motionVectorVisualisationDescriptorWrites;
+ motionVectorVisualisationDescriptorWrites.sampledImageWrites = {
+ vkcv::SampledImageDescriptorWrite(0, visualisationInput) };
+ motionVectorVisualisationDescriptorWrites.samplerWrites = {
+ vkcv::SamplerDescriptorWrite(1, m_nearestSampler) };
+ motionVectorVisualisationDescriptorWrites.storageImageWrites = {
+ vkcv::StorageImageDescriptorWrite(2, m_renderTargets.outputColor) };
+
+ m_core->writeDescriptorSet(
+ m_motionVectorVisualisationPass.descriptorSet,
+ motionVectorVisualisationDescriptorWrites);
+
+ m_core->prepareImageForSampling(cmdStream, visualisationInput);
+ m_core->prepareImageForStorage(cmdStream, m_renderTargets.outputColor);
+
+ vkcv::PushConstants motionVectorVisualisationPushConstants(sizeof(float));
+ motionVectorVisualisationPushConstants.appendDrawcall(velocityRange);
+
+ const auto dispatchSizes = computeFullscreenDispatchSize(
+ m_core->getImageWidth(m_renderTargets.outputColor),
+ m_core->getImageHeight(m_renderTargets.outputColor),
+ 8);
+
+ m_core->recordComputeDispatchToCmdStream(
+ cmdStream,
+ m_motionVectorVisualisationPass.pipeline,
+ dispatchSizes.data(),
+ { vkcv::DescriptorSetUsage(0, m_core->getDescriptorSet(m_motionVectorVisualisationPass.descriptorSet).vulkanHandle) },
+ motionVectorVisualisationPushConstants);
+
+ return m_renderTargets.outputColor;
+}
+
+void MotionBlur::computeMotionTiles(
+ const vkcv::CommandStreamHandle cmdStream,
+ const vkcv::ImageHandle motionBufferFullRes) {
+
+ // motion vector min max tiles
+ vkcv::DescriptorWrites motionVectorMaxTilesDescriptorWrites;
+ motionVectorMaxTilesDescriptorWrites.sampledImageWrites = {
+ vkcv::SampledImageDescriptorWrite(0, motionBufferFullRes) };
+ motionVectorMaxTilesDescriptorWrites.samplerWrites = {
+ vkcv::SamplerDescriptorWrite(1, m_nearestSampler) };
+ motionVectorMaxTilesDescriptorWrites.storageImageWrites = {
+ vkcv::StorageImageDescriptorWrite(2, m_renderTargets.motionMax),
+ vkcv::StorageImageDescriptorWrite(3, m_renderTargets.motionMin) };
+
+ m_core->writeDescriptorSet(m_motionVectorMinMaxPass.descriptorSet, motionVectorMaxTilesDescriptorWrites);
+
+ m_core->prepareImageForSampling(cmdStream, motionBufferFullRes);
+ m_core->prepareImageForStorage(cmdStream, m_renderTargets.motionMax);
+ m_core->prepareImageForStorage(cmdStream, m_renderTargets.motionMin);
+
+ const std::array<uint32_t, 3> motionTileDispatchCounts = computeFullscreenDispatchSize(
+ m_core->getImageWidth( m_renderTargets.motionMax),
+ m_core->getImageHeight(m_renderTargets.motionMax),
+ 8);
+
+ m_core->recordComputeDispatchToCmdStream(
+ cmdStream,
+ m_motionVectorMinMaxPass.pipeline,
+ motionTileDispatchCounts.data(),
+ { vkcv::DescriptorSetUsage(0, m_core->getDescriptorSet(m_motionVectorMinMaxPass.descriptorSet).vulkanHandle) },
+ vkcv::PushConstants(0));
+
+ // motion vector min max neighbourhood
+ vkcv::DescriptorWrites motionVectorMaxNeighbourhoodDescriptorWrites;
+ motionVectorMaxNeighbourhoodDescriptorWrites.sampledImageWrites = {
+ vkcv::SampledImageDescriptorWrite(0, m_renderTargets.motionMax),
+ vkcv::SampledImageDescriptorWrite(1, m_renderTargets.motionMin) };
+ motionVectorMaxNeighbourhoodDescriptorWrites.samplerWrites = {
+ vkcv::SamplerDescriptorWrite(2, m_nearestSampler) };
+ motionVectorMaxNeighbourhoodDescriptorWrites.storageImageWrites = {
+ vkcv::StorageImageDescriptorWrite(3, m_renderTargets.motionMaxNeighbourhood),
+ vkcv::StorageImageDescriptorWrite(4, m_renderTargets.motionMinNeighbourhood) };
+
+ m_core->writeDescriptorSet(m_motionVectorMinMaxNeighbourhoodPass.descriptorSet, motionVectorMaxNeighbourhoodDescriptorWrites);
+
+ m_core->prepareImageForSampling(cmdStream, m_renderTargets.motionMax);
+ m_core->prepareImageForSampling(cmdStream, m_renderTargets.motionMin);
+
+ m_core->prepareImageForStorage(cmdStream, m_renderTargets.motionMaxNeighbourhood);
+ m_core->prepareImageForStorage(cmdStream, m_renderTargets.motionMinNeighbourhood);
+
+ m_core->recordComputeDispatchToCmdStream(
+ cmdStream,
+ m_motionVectorMinMaxNeighbourhoodPass.pipeline,
+ motionTileDispatchCounts.data(),
+ { vkcv::DescriptorSetUsage(0, m_core->getDescriptorSet(m_motionVectorMinMaxNeighbourhoodPass.descriptorSet).vulkanHandle) },
+ vkcv::PushConstants(0));
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/src/MotionBlur.hpp b/projects/indirect_dispatch/src/MotionBlur.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..b50f0af60d566dc0e4fc00c31b7b834e11679bf5
--- /dev/null
+++ b/projects/indirect_dispatch/src/MotionBlur.hpp
@@ -0,0 +1,84 @@
+#pragma once
+#include <vkcv/Core.hpp>
+#include "AppSetup.hpp"
+#include "MotionBlurSetup.hpp"
+
+// selection for motion blur input and visualisation
+enum class eMotionVectorVisualisationMode : int {
+ None = 0,
+ FullResolution = 1,
+ MaxTile = 2,
+ MaxTileNeighbourhood = 3,
+ MinTile = 4,
+ MinTileNeighbourhood = 5,
+ OptionCount = 6 };
+
+static const char* MotionVectorVisualisationModeLabels[6] = {
+ "None",
+ "Full resolution",
+ "Max tile",
+ "Tile neighbourhood max",
+ "Min Tile",
+ "Tile neighbourhood min"};
+
+enum class eMotionBlurMode : int {
+ Default = 0,
+ Disabled = 1,
+ TileVisualisation = 2,
+ OptionCount = 3 };
+
+static const char* MotionBlurModeLabels[3] = {
+ "Default",
+ "Disabled",
+ "Tile visualisation" };
+
+class MotionBlur {
+public:
+
+ bool initialize(vkcv::Core* corePtr, const uint32_t targetWidth, const uint32_t targetHeight);
+ void setResolution(const uint32_t targetWidth, const uint32_t targetHeight);
+
+ vkcv::ImageHandle render(
+ const vkcv::CommandStreamHandle cmdStream,
+ const vkcv::ImageHandle motionBufferFullRes,
+ const vkcv::ImageHandle colorBuffer,
+ const vkcv::ImageHandle depthBuffer,
+ const eMotionBlurMode mode,
+ const float cameraNear,
+ const float cameraFar,
+ const float deltaTimeSeconds,
+ const float cameraShutterSpeedInverse,
+ const float motionTileOffsetLength,
+ const float fastPathThreshold);
+
+ vkcv::ImageHandle renderMotionVectorVisualisation(
+ const vkcv::CommandStreamHandle cmdStream,
+ const vkcv::ImageHandle motionBuffer,
+ const eMotionVectorVisualisationMode mode,
+ const float velocityRange);
+
+private:
+ // computes max per tile and neighbourhood tile max
+ void computeMotionTiles(
+ const vkcv::CommandStreamHandle cmdStream,
+ const vkcv::ImageHandle motionBufferFullRes);
+
+ vkcv::Core* m_core;
+
+ MotionBlurRenderTargets m_renderTargets;
+ vkcv::SamplerHandle m_nearestSampler;
+
+ ComputePassHandles m_motionBlurPass;
+ ComputePassHandles m_motionVectorMinMaxPass;
+ ComputePassHandles m_motionVectorMinMaxNeighbourhoodPass;
+ ComputePassHandles m_motionVectorVisualisationPass;
+ ComputePassHandles m_colorCopyPass;
+ ComputePassHandles m_tileClassificationPass;
+ ComputePassHandles m_tileResetPass;
+ ComputePassHandles m_tileVisualisationPass;
+ ComputePassHandles m_motionBlurFastPathPass;
+
+ vkcv::BufferHandle m_fullPathWorkTileBuffer;
+ vkcv::BufferHandle m_copyPathWorkTileBuffer;
+ vkcv::BufferHandle m_fastPathWorkTileBuffer;
+};
\ No newline at end of file
diff --git a/projects/indirect_dispatch/src/MotionBlurConfig.hpp b/projects/indirect_dispatch/src/MotionBlurConfig.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..7552abd246ca8d2e7489c5065f43ef8b48af7cd2
--- /dev/null
+++ b/projects/indirect_dispatch/src/MotionBlurConfig.hpp
@@ -0,0 +1,10 @@
+#pragma once
+#include "vulkan/vulkan.hpp"
+
+namespace MotionBlurConfig {
+ const vk::Format motionVectorTileFormat = vk::Format::eR16G16Sfloat;
+ const vk::Format outputColorFormat = vk::Format::eB10G11R11UfloatPack32;
+ const uint32_t maxMotionTileSize = 16; // must match "motionTileSize" in motionBlurConfig.inc
+ const uint32_t maxWidth = 3840;
+ const uint32_t maxHeight = 2160;
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/src/MotionBlurSetup.cpp b/projects/indirect_dispatch/src/MotionBlurSetup.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..82d2593a5b976f9389b58dddac43e3a45d1db303
--- /dev/null
+++ b/projects/indirect_dispatch/src/MotionBlurSetup.cpp
@@ -0,0 +1,57 @@
+#include "MotionBlurSetup.hpp"
+#include "MotionBlurConfig.hpp"
+
+namespace MotionBlurSetup {
+
+MotionBlurRenderTargets createRenderTargets(const uint32_t width, const uint32_t height, vkcv::Core& core) {
+
+ MotionBlurRenderTargets targets;
+
+ // divide and ceil to int
+ const uint32_t motionMaxWidth = (width + (MotionBlurConfig::maxMotionTileSize - 1)) / MotionBlurConfig::maxMotionTileSize;
+ const uint32_t motionMaxheight = (height + (MotionBlurConfig::maxMotionTileSize - 1)) / MotionBlurConfig::maxMotionTileSize;
+
+ targets.motionMax = core.createImage(
+ MotionBlurConfig::motionVectorTileFormat,
+ motionMaxWidth,
+ motionMaxheight,
+ 1,
+ false,
+ true).getHandle();
+
+ targets.motionMaxNeighbourhood = core.createImage(
+ MotionBlurConfig::motionVectorTileFormat,
+ motionMaxWidth,
+ motionMaxheight,
+ 1,
+ false,
+ true).getHandle();
+
+ targets.motionMin = core.createImage(
+ MotionBlurConfig::motionVectorTileFormat,
+ motionMaxWidth,
+ motionMaxheight,
+ 1,
+ false,
+ true).getHandle();
+
+ targets.motionMinNeighbourhood = core.createImage(
+ MotionBlurConfig::motionVectorTileFormat,
+ motionMaxWidth,
+ motionMaxheight,
+ 1,
+ false,
+ true).getHandle();
+
+ targets.outputColor = core.createImage(
+ MotionBlurConfig::outputColorFormat,
+ width,
+ height,
+ 1,
+ false,
+ true).getHandle();
+
+ return targets;
+}
+
+} // namespace MotionBlurSetup
\ No newline at end of file
diff --git a/projects/indirect_dispatch/src/MotionBlurSetup.hpp b/projects/indirect_dispatch/src/MotionBlurSetup.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..ca169d7c6b04aa152d42ba36c3d2e02e563bbd91
--- /dev/null
+++ b/projects/indirect_dispatch/src/MotionBlurSetup.hpp
@@ -0,0 +1,14 @@
+#pragma once
+#include <vkcv/Core.hpp>
+
+struct MotionBlurRenderTargets {
+ vkcv::ImageHandle outputColor;
+ vkcv::ImageHandle motionMax;
+ vkcv::ImageHandle motionMaxNeighbourhood;
+ vkcv::ImageHandle motionMin;
+ vkcv::ImageHandle motionMinNeighbourhood;
+};
+
+namespace MotionBlurSetup {
+ MotionBlurRenderTargets createRenderTargets(const uint32_t width, const uint32_t height, vkcv::Core& core);
+}
\ No newline at end of file
diff --git a/projects/indirect_dispatch/src/main.cpp b/projects/indirect_dispatch/src/main.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..b27e0bcb8f1991d76b570b79da9cc4734cf52950
--- /dev/null
+++ b/projects/indirect_dispatch/src/main.cpp
@@ -0,0 +1,13 @@
+#include "App.hpp"
+
+int main(int argc, const char** argv) {
+
+ App app;
+ if (!app.initialize()) {
+ std::cerr << "Application initialization failed, exiting" << std::endl;
+ return 1;
+ }
+ app.run();
+
+ return 0;
+}
diff --git a/projects/mesh_shader/src/main.cpp b/projects/mesh_shader/src/main.cpp
index 18d705ecb6b4e1817d32695eeeaf55406c95dab4..15aaf527619b4fb06d89bccc78cffe843cc723b7 100644
--- a/projects/mesh_shader/src/main.cpp
+++ b/projects/mesh_shader/src/main.cpp
@@ -105,11 +105,6 @@ int main(int argc, const char** argv) {
vkcv::gui::GUI gui (core, window);
- const auto& context = core.getContext();
- const vk::Instance& instance = context.getInstance();
- const vk::PhysicalDevice& physicalDevice = context.getPhysicalDevice();
- const vk::Device& device = context.getDevice();
-
vkcv::asset::Scene mesh;
const char* path = argc > 1 ? argv[1] : "resources/Bunny/Bunny.glb";
vkcv::asset::loadScene(path, mesh);
diff --git a/src/vkcv/BufferManager.cpp b/src/vkcv/BufferManager.cpp
index cfa233290b89702f196ed97c706254e002a0551b..f22d56650654f66dd1fea4141a449004dcad88cc 100644
--- a/src/vkcv/BufferManager.cpp
+++ b/src/vkcv/BufferManager.cpp
@@ -19,7 +19,7 @@ namespace vkcv {
return;
}
- m_stagingBuffer = createBuffer(BufferType::STAGING, 1024 * 1024, BufferMemoryType::HOST_VISIBLE);
+ m_stagingBuffer = createBuffer(BufferType::STAGING, 1024 * 1024, BufferMemoryType::HOST_VISIBLE, false);
}
BufferManager::~BufferManager() noexcept {
@@ -28,7 +28,7 @@ namespace vkcv {
}
}
- BufferHandle BufferManager::createBuffer(BufferType type, size_t size, BufferMemoryType memoryType) {
+ BufferHandle BufferManager::createBuffer(BufferType type, size_t size, BufferMemoryType memoryType, bool supportIndirect) {
vk::BufferCreateFlags createFlags;
vk::BufferUsageFlags usageFlags;
@@ -49,13 +49,15 @@ namespace vkcv {
usageFlags = vk::BufferUsageFlagBits::eIndexBuffer;
break;
default:
- // TODO: maybe an issue
+ vkcv_log(LogLevel::WARNING, "Unknown buffer type");
break;
}
if (memoryType == BufferMemoryType::DEVICE_LOCAL) {
usageFlags |= vk::BufferUsageFlagBits::eTransferDst;
}
+ if (supportIndirect)
+ usageFlags |= vk::BufferUsageFlagBits::eIndirectBuffer;
const vma::Allocator& allocator = m_core->getContext().getAllocator();
@@ -81,6 +83,10 @@ namespace vkcv {
break;
}
+ if (type == BufferType::STAGING) {
+ memoryUsage = vma::MemoryUsage::eCpuToGpu;
+ }
+
auto bufferAllocation = allocator.createBuffer(
vk::BufferCreateInfo(createFlags, size, usageFlags),
vma::AllocationCreateInfo(
diff --git a/src/vkcv/Core.cpp b/src/vkcv/Core.cpp
index 1ae1c3164054107b6bd9f7dec822f45180a07577..851f08a4c0894b6f6753270ba068e9b2dd544574 100644
--- a/src/vkcv/Core.cpp
+++ b/src/vkcv/Core.cpp
@@ -502,6 +502,42 @@ namespace vkcv
recordCommandsToStream(cmdStreamHandle, submitFunction, nullptr);
}
+ void Core::recordComputeIndirectDispatchToCmdStream(
+ const CommandStreamHandle cmdStream,
+ const PipelineHandle computePipeline,
+ const vkcv::BufferHandle buffer,
+ const size_t bufferArgOffset,
+ const std::vector<DescriptorSetUsage>& descriptorSetUsages,
+ const PushConstants& pushConstants) {
+
+ auto submitFunction = [&](const vk::CommandBuffer& cmdBuffer) {
+
+ const auto pipelineLayout = m_PipelineManager->getVkPipelineLayout(computePipeline);
+
+ cmdBuffer.bindPipeline(vk::PipelineBindPoint::eCompute, m_PipelineManager->getVkPipeline(computePipeline));
+ for (const auto& usage : descriptorSetUsages) {
+ cmdBuffer.bindDescriptorSets(
+ vk::PipelineBindPoint::eCompute,
+ pipelineLayout,
+ usage.setLocation,
+ { usage.vulkanHandle },
+ usage.dynamicOffsets
+ );
+ }
+ if (pushConstants.getSizePerDrawcall() > 0) {
+ cmdBuffer.pushConstants(
+ pipelineLayout,
+ vk::ShaderStageFlagBits::eCompute,
+ 0,
+ pushConstants.getSizePerDrawcall(),
+ pushConstants.getData());
+ }
+ cmdBuffer.dispatchIndirect(m_BufferManager->getBuffer(buffer), bufferArgOffset);
+ };
+
+ recordCommandsToStream(cmdStream, submitFunction, nullptr);
+ }
+
void Core::endFrame() {
if (m_currentSwapchainImageIndex == std::numeric_limits<uint32_t>::max()) {
return;
diff --git a/src/vkcv/DescriptorConfig.cpp b/src/vkcv/DescriptorConfig.cpp
index 54e879ac7e6ec7825a4c003899e3c264454c547f..a9a127fe608472682c1cbc8d32ca466fba860c72 100644
--- a/src/vkcv/DescriptorConfig.cpp
+++ b/src/vkcv/DescriptorConfig.cpp
@@ -5,11 +5,11 @@ namespace vkcv {
uint32_t bindingID,
DescriptorType descriptorType,
uint32_t descriptorCount,
- ShaderStage shaderStage) noexcept
+ ShaderStages shaderStages) noexcept
:
bindingID(bindingID),
descriptorType(descriptorType),
descriptorCount(descriptorCount),
- shaderStage(shaderStage) {}
+ shaderStages(shaderStages) {}
}
diff --git a/src/vkcv/DescriptorManager.cpp b/src/vkcv/DescriptorManager.cpp
index 0df359a15883847c132c429ed2945ac7624fb865..76f2dae74420804c9ce168bea76e7c1bdef0fbc0 100644
--- a/src/vkcv/DescriptorManager.cpp
+++ b/src/vkcv/DescriptorManager.cpp
@@ -54,7 +54,7 @@ namespace vkcv
binding.bindingID,
convertDescriptorTypeFlag(binding.descriptorType),
binding.descriptorCount,
- convertShaderStageFlag(binding.shaderStage));
+ getShaderStageFlags(binding.shaderStages));
setBindings.push_back(descriptorSetLayoutBinding);
}
@@ -273,26 +273,6 @@ namespace vkcv
return vk::DescriptorType::eUniformBuffer;
}
}
-
- vk::ShaderStageFlagBits DescriptorManager::convertShaderStageFlag(ShaderStage stage) {
- switch (stage)
- {
- case ShaderStage::VERTEX:
- return vk::ShaderStageFlagBits::eVertex;
- case ShaderStage::FRAGMENT:
- return vk::ShaderStageFlagBits::eFragment;
- case ShaderStage::TESS_CONTROL:
- return vk::ShaderStageFlagBits::eTessellationControl;
- case ShaderStage::TESS_EVAL:
- return vk::ShaderStageFlagBits::eTessellationEvaluation;
- case ShaderStage::GEOMETRY:
- return vk::ShaderStageFlagBits::eGeometry;
- case ShaderStage::COMPUTE:
- return vk::ShaderStageFlagBits::eCompute;
- default:
- return vk::ShaderStageFlagBits::eAll;
- }
- }
void DescriptorManager::destroyDescriptorSetById(uint64_t id) {
if (id >= m_DescriptorSets.size()) {
diff --git a/src/vkcv/DescriptorManager.hpp b/src/vkcv/DescriptorManager.hpp
index d18be64f3b069af68cecce68f6fa623c81f8dfa4..df58daa56c26a0432f365a4ed0d9df56adc4cd0e 100644
--- a/src/vkcv/DescriptorManager.hpp
+++ b/src/vkcv/DescriptorManager.hpp
@@ -51,12 +51,6 @@ namespace vkcv
* @return vk flag of the DescriptorType
*/
static vk::DescriptorType convertDescriptorTypeFlag(DescriptorType type);
- /**
- * Converts the flags of the shader stages from VulkanCV (vkcv) to Vulkan (vk).
- * @param[in] vkcv flag of the ShaderStage (see ShaderProgram.hpp)
- * @return vk flag of the ShaderStage
- */
- static vk::ShaderStageFlagBits convertShaderStageFlag(ShaderStage stage);
/**
* Destroys a specific resource description
diff --git a/src/vkcv/ImageManager.cpp b/src/vkcv/ImageManager.cpp
index 1cb6ad3a1187c08cf1aa014ae4ae259591f5c786..4ddd7f8c44c6023a80831bc8b4b092692e84ec86 100644
--- a/src/vkcv/ImageManager.cpp
+++ b/src/vkcv/ImageManager.cpp
@@ -387,7 +387,7 @@ namespace vkcv {
const size_t max_size = std::min(size, image_size);
BufferHandle bufferHandle = m_bufferManager.createBuffer(
- BufferType::STAGING, max_size, BufferMemoryType::HOST_VISIBLE
+ BufferType::STAGING, max_size, BufferMemoryType::HOST_VISIBLE, false
);
m_bufferManager.fillBuffer(bufferHandle, data, max_size, 0);
diff --git a/src/vkcv/ShaderProgram.cpp b/src/vkcv/ShaderProgram.cpp
index 971797d9a42d071a1730ebf31a0b554f92fa361f..134ba7afd203d3222b37dfaf627a9d4fd3ede1c7 100644
--- a/src/vkcv/ShaderProgram.cpp
+++ b/src/vkcv/ShaderProgram.cpp
@@ -195,7 +195,25 @@ namespace vkcv {
if (maxSetID != -1) {
if((int32_t)m_DescriptorSets.size() <= maxSetID) m_DescriptorSets.resize(maxSetID + 1);
for (const auto &binding : bindings) {
- m_DescriptorSets[binding.first].push_back(binding.second);
+ //checking if descriptor has already been reflected in another shader stage
+ bool bindingFound = false;
+ uint32_t pos = 0;
+ for (const auto& descriptor : m_DescriptorSets[binding.first]) {
+ if (binding.second.bindingID == descriptor.bindingID) {
+ if (binding.second.descriptorType == descriptor.descriptorType && binding.second.descriptorCount == descriptor.descriptorCount) {
+ //updating descriptor binding with another shader stage
+ ShaderStages updatedShaders = descriptor.shaderStages | shaderStage;
+ DescriptorBinding newBinding = DescriptorBinding(binding.second.bindingID, binding.second.descriptorType, binding.second.descriptorCount, updatedShaders);
+ m_DescriptorSets[binding.first][pos] = newBinding;
+ bindingFound = true;
+ break;
+ }
+ else vkcv_log(LogLevel::ERROR, "Included shaders contain resources with same identifier but different type or count");
+ }
+ pos++;
+ }
+ //append new descriptor if it has not been reflected yet
+ if(!bindingFound) m_DescriptorSets[binding.first].push_back(binding.second);
}
}
diff --git a/src/vkcv/Window.cpp b/src/vkcv/Window.cpp
index aea00fb10d579aea0dc5be789ced3e6582b868bf..072efcd00eb6520fa4f20379721b559668339f6e 100644
--- a/src/vkcv/Window.cpp
+++ b/src/vkcv/Window.cpp
@@ -4,6 +4,7 @@
* @brief Window class to handle a basic rendering surface and input
*/
+#include <thread>
#include <vector>
#include <GLFW/glfw3.h>
@@ -80,12 +81,17 @@ namespace vkcv {
window->e_key.unlock();
window->e_char.unlock();
window->e_gamepad.unlock();
- }
+ }
+
+ glfwPollEvents();
+
+ // fixes subtle mouse stutter, which is made visible by motion blur
+ // FIXME: proper solution
+ // probably caused by main thread locking events before glfw callbacks are executed
+ std::this_thread::sleep_for(std::chrono::milliseconds(1));
- glfwPollEvents();
-
- for (int gamepadIndex = GLFW_JOYSTICK_1; gamepadIndex <= GLFW_JOYSTICK_LAST; gamepadIndex++) {
- if (glfwJoystickPresent(gamepadIndex)) {
+ for (int gamepadIndex = GLFW_JOYSTICK_1; gamepadIndex <= GLFW_JOYSTICK_LAST; gamepadIndex++) {
+ if (glfwJoystickPresent(gamepadIndex)) {
onGamepadEvent(gamepadIndex);
}
}