Update first_scene project

Signed-off-by: Tobias Frisch <tfrisch@uni-koblenz.de>

projects/first_scene/assets/shaders/shader.frag

@@ -4,12 +4,28 @@
 layout(location = 0) in vec3 passNormal;
 layout(location = 1) in vec2 passUV;
 
-layout(location = 0) out vec3 outColor;
+layout(location = 0) out vec4 outColor;
 
 layout(set=0, binding=0) uniform texture2D  meshTexture;
 layout(set=0, binding=1) uniform sampler    textureSampler;
 
 void main()	{
-	outColor = texture(sampler2D(meshTexture, textureSampler), passUV).rgb;
-    //outColor = passNormal * 0.5 + 0.5;
+	vec3 lightDirection = normalize(vec3(0.1f, -0.9f, 0.1f));
+
+	float ambient = 0.35f;
+	float diffuse = max(0.0f, -dot(passNormal, lightDirection));
+	float specular = pow(diffuse, 6.0f);
+
+	float brightness = sqrt(
+		(ambient + diffuse + specular) /
+		(2.0f + ambient)
+	);
+
+	vec4 color = texture(sampler2D(meshTexture, textureSampler), passUV);
+
+	if (color.a <= 0.0f) {
+		discard;
+	}
+
+	outColor = vec4(color.rgb * brightness, color.a);
 }
\ No newline at end of file

projects/first_scene/src/main.cpp

@@ -4,7 +4,6 @@
 #include <GLFW/glfw3.h>
 #include <vkcv/camera/CameraManager.hpp>
 #include <vkcv/gui/GUI.hpp>
-#include <chrono>
 #include <vkcv/asset/asset_loader.hpp>
 #include <vkcv/shader/GLSLCompiler.hpp>
 #include <vkcv/scene/Scene.hpp>
@@ -18,12 +17,6 @@ int main(int argc, const char** argv) {
 	
 	vkcv::Features features;
 	features.requireExtension(VK_KHR_SWAPCHAIN_EXTENSION_NAME);
-	features.requireExtensionFeature<vk::PhysicalDeviceDescriptorIndexingFeatures>(
-			VK_EXT_DESCRIPTOR_INDEXING_EXTENSION_NAME,
-			[](vk::PhysicalDeviceDescriptorIndexingFeatures& features) {
-				features.setDescriptorBindingPartiallyBound(true);
-			}
-	);
 
 	vkcv::Core core = vkcv::Core::create(
 			applicationName,
@@ -31,6 +24,7 @@ int main(int argc, const char** argv) {
 			{vk::QueueFlagBits::eTransfer, vk::QueueFlagBits::eGraphics, vk::QueueFlagBits::eCompute},
 			features
 	);
+	
 	vkcv::WindowHandle windowHandle = core.createWindow(applicationName, windowWidth, windowHeight, true);
 	vkcv::Window& window = core.getWindow(windowHandle);
 	vkcv::camera::CameraManager cameraManager(window);