From 08e2e40c05f9446b9d9974b5f1f71e55be510969 Mon Sep 17 00:00:00 2001
From: Vanessa Karolek <vaka1997@uni-koblenz.de>
Date: Thu, 26 Aug 2021 15:54:57 +0200
Subject: [PATCH] [#92] add raytracing features to Context::create
---
src/vkcv/Context.cpp | 26 +++++++++++++++++++++++++-
1 file changed, 25 insertions(+), 1 deletion(-)
diff --git a/src/vkcv/Context.cpp b/src/vkcv/Context.cpp
index 2e30fb96..6543c50e 100644
--- a/src/vkcv/Context.cpp
+++ b/src/vkcv/Context.cpp
@@ -326,7 +326,31 @@ namespace vkcv
if (storage16bit) {
deviceShaderFloat16Int8Features.setPNext(&device16BitStorageFeatures);
}
-
+
+ // add raytracing features, if available
+ const bool usingRTX = isPresentInCharPtrVector(deviceExtensions, VK_KHR_RAY_TRACING_PIPELINE_EXTENSION_NAME);
+ if (usingRTX) {
+ vk::PhysicalDeviceFeatures2 raytracingFeatures2; // INFO: vulkan says we can only use one PhysicalDeviceFeatures2 struct -> replace deviceFeatures2 by raytracingFeatures2
+ vk::PhysicalDeviceVulkan12Features raytracingFeatures12;
+ vk::PhysicalDeviceVulkan11Features raytracingFeatures11;
+ vk::PhysicalDeviceAccelerationStructureFeaturesKHR raytracingAccelerationFeatures;
+ vk::PhysicalDeviceRayTracingPipelineFeaturesKHR raytracingPipelineFeatures;
+
+ raytracingFeatures2.setPNext(&raytracingFeatures12);
+ raytracingFeatures12.setPNext(&raytracingFeatures11);
+ raytracingFeatures11.setPNext(&raytracingAccelerationFeatures);
+ raytracingAccelerationFeatures.setPNext(&raytracingPipelineFeatures);
+
+ physicalDevice.getFeatures2(&raytracingFeatures2); // query supported features
+
+ // add raytracing features to deviceFeatures2
+ deviceFeatures2.setFeatures(raytracingFeatures2.features); // TODO: Ist das so korrekt? Haette sonst an dem letzten pNext Eintrag (leider ein void*) die anderen Features angekettet
+ deviceFeatures2.features.fragmentStoresAndAtomics = true; // TODO: Wir koennten hier auch die .features Zeilen von oben runternehmen zu nach den Klammern
+ deviceFeatures2.features.geometryShader = true;
+ deviceFeatures2.features.depthClamp = true;
+ deviceFeatures2.features.shaderInt16 = true;
+ }
+
deviceCreateInfo.setPNext(&deviceFeatures2);
// Ablauf
--
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