clara/bluenoise-raytracer
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Adapting to buildTlas changes, fix validation warnings, members initializations

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This commit is contained in:
mklefrancois 2021-08-23 13:45:20 +02:00
parent d66243800c
commit 1c9be00cec
26 changed files with 197 additions and 176 deletions
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15
ray_tracing_gltf/hello_vulkan.cpp
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@ -668,16 +668,17 @@ void HelloVulkan::createBottomLevelAS()
void HelloVulkan::createTopLevelAS()
{
std::vector<nvvk::RaytracingBuilderKHR::Instance> tlas;
std::vector<VkAccelerationStructureInstanceKHR> tlas;
tlas.reserve(m_gltfScene.m_nodes.size());
for(auto& node : m_gltfScene.m_nodes)
{
nvvk::RaytracingBuilderKHR::Instance rayInst;
rayInst.transform = node.worldMatrix;
rayInst.instanceCustomId = node.primMesh; // gl_InstanceCustomIndexEXT: to find which primitive
rayInst.blasId = node.primMesh;
rayInst.flags = VK_GEOMETRY_INSTANCE_TRIANGLE_FACING_CULL_DISABLE_BIT_KHR;
rayInst.hitGroupId = 0; // We will use the same hit group for all objects
VkAccelerationStructureInstanceKHR rayInst;
rayInst.transform = nvvk::toTransformMatrixKHR(node.worldMatrix);
rayInst.instanceCustomIndex = node.primMesh; // gl_InstanceCustomIndexEXT: to find which primitive
rayInst.accelerationStructureReference = m_rtBuilder.getBlasDeviceAddress(node.primMesh);
rayInst.flags = VK_GEOMETRY_INSTANCE_TRIANGLE_FACING_CULL_DISABLE_BIT_KHR;
rayInst.instanceShaderBindingTableRecordOffset = 0; // We will use the same hit group for all objects
rayInst.mask = 0xFF;
tlas.emplace_back(rayInst);
}
m_rtBuilder.buildTlas(tlas, VK_BUILD_ACCELERATION_STRUCTURE_PREFER_FAST_TRACE_BIT_KHR);