Using final KHR ray tracing extension: VK_KHR_acceleration_structure, VK_KHR_ray_tracing_pipeline and VK_KHR_ray_query
This commit is contained in:
mklefrancois
parent
7179569ec3
commit
b26ff92473
80 changed files with 2446 additions and 2351 deletions
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@ -1,32 +1,38 @@
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cmake_minimum_required(VERSION 2.8)
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#*****************************************************************************
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# Copyright 2020 NVIDIA Corporation. All rights reserved.
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#*****************************************************************************
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cmake_minimum_required(VERSION 3.9.6 FATAL_ERROR)
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#--------------------------------------------------------------------------------------------------
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# Project setting
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get_filename_component(PROJNAME ${CMAKE_CURRENT_SOURCE_DIR} NAME)
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SET(PROJNAME vk_${PROJNAME}_KHR)
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project(${PROJNAME} LANGUAGES C CXX)
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message(STATUS "-------------------------------")
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message(STATUS "Processing Project ${PROJNAME}:")
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Project(${PROJNAME})
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Message(STATUS "-------------------------------")
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Message(STATUS "Processing Project ${PROJNAME}:")
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#####################################################################################
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_add_project_definitions(${PROJNAME})
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#--------------------------------------------------------------------------------------------------
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# C++ target and defines
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set(CMAKE_CXX_STANDARD 17)
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add_executable(${PROJNAME})
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target_compile_definitions(${PROJNAME} PUBLIC PROJECT_NAME="${PROJNAME}")
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#####################################################################################
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#--------------------------------------------------------------------------------------------------
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# Source files for this project
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#
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file(GLOB SOURCE_FILES *.cpp *.hpp *.inl *.h *.c)
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file(GLOB EXTRA_COMMON "../common/*.*")
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file(GLOB EXTRA_COMMON ${TUTO_KHR_DIR}/common/*.*)
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list(APPEND COMMON_SOURCE_FILES ${EXTRA_COMMON})
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include_directories("../common")
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include_directories(${TUTO_KHR_DIR}/common)
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#####################################################################################
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#--------------------------------------------------------------------------------------------------
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# GLSL to SPIR-V custom build
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#
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# more than one file can be given: _compile_GLSL("GLSL_mesh.vert;GLSL_mesh.frag" "GLSL_mesh.spv" GLSL_SOURCES)
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# the SpirV validator is fine as long as files are for different pipeline stages (entry points still need to be main())
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#_compile_GLSL(<source(s)> <target spv> <LIST where files are appended>)
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SET(VULKAN_TARGET_ENV vulkan1.2)
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UNSET(GLSL_SOURCES)
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UNSET(SPV_OUTPUT)
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file(GLOB_RECURSE GLSL_HEADER_FILES "shaders/*.h" "shaders/*.glsl")
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@ -36,48 +42,36 @@ file(GLOB_RECURSE GLSL_SOURCE_FILES
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"shaders/*.vert"
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"shaders/*.rchit"
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"shaders/*.rahit"
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"shaders/*.rint"
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"shaders/*.rmiss"
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"shaders/*.rgen"
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"shaders/*.rcall"
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)
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foreach(GLSL ${GLSL_SOURCE_FILES})
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get_filename_component(FILE_NAME ${GLSL} NAME)
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_compile_GLSL(${GLSL} "shaders/${FILE_NAME}.spv" GLSL_SOURCES SPV_OUTPUT)
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endforeach(GLSL)
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list(APPEND GLSL_SOURCES ${GLSL_HEADER_FILES})
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source_group(Shader_Files FILES ${GLSL_SOURCES})
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#####################################################################################
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# Executable
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#--------------------------------------------------------------------------------------------------
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# Sources
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target_sources(${PROJNAME} PUBLIC ${SOURCE_FILES} ${HEADER_FILES})
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target_sources(${PROJNAME} PUBLIC ${COMMON_SOURCE_FILES})
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target_sources(${PROJNAME} PUBLIC ${PACKAGE_SOURCE_FILES})
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target_sources(${PROJNAME} PUBLIC ${GLSL_SOURCES})
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#--------------------------------------------------------------------------------------------------
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# Sub-folders in Visual Studio
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#
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# if(WIN32 AND NOT GLUT_FOUND)
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# add_definitions(/wd4996) #remove printf warning
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# add_definitions(/wd4244) #remove double to float conversion warning
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# add_definitions(/wd4305) #remove double to float truncation warning
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# else()
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# add_definitions(-fpermissive)
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# endif()
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add_executable(${PROJNAME} ${SOURCE_FILES} ${COMMON_SOURCE_FILES} ${PACKAGE_SOURCE_FILES} ${GLSL_SOURCES} ${CUDA_FILES} ${CUBIN_SOURCES})
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source_group("Common" FILES ${COMMON_SOURCE_FILES} ${PACKAGE_SOURCE_FILES})
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source_group("Sources" FILES ${SOURCE_FILES})
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source_group("Headers" FILES ${HEADER_FILES})
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source_group("Shader_Files" FILES ${GLSL_SOURCES})
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#_set_subsystem_console(${PROJNAME})
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#####################################################################################
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# common source code needed for this sample
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#
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source_group(common FILES
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${COMMON_SOURCE_FILES}
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${PACKAGE_SOURCE_FILES}
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)
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source_group("Source Files" FILES ${SOURCE_FILES})
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# if(UNIX)
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# set(UNIXLINKLIBS dl pthread)
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# else()
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# set(UNIXLINKLIBS)
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# endif()
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#####################################################################################
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#--------------------------------------------------------------------------------------------------
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# Linkage
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#
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target_link_libraries(${PROJNAME} ${PLATFORM_LIBRARIES} shared_sources)
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@ -90,15 +84,28 @@ foreach(RELEASELIB ${LIBRARIES_OPTIMIZED})
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target_link_libraries(${PROJNAME} optimized ${RELEASELIB})
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endforeach(RELEASELIB)
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#####################################################################################
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#--------------------------------------------------------------------------------------------------
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# copies binaries that need to be put next to the exe files (ZLib, etc.)
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#
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_copy_binaries_to_target( ${PROJNAME} )
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install(FILES ${SPV_OUTPUT} CONFIGURATIONS Release DESTINATION "bin_${ARCH}/${PROJNAME}/shaders")
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install(FILES ${SPV_OUTPUT} CONFIGURATIONS Debug DESTINATION "bin_${ARCH}_debug/${PROJNAME}/shaders")
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install(FILES ${CUBIN_SOURCES} CONFIGURATIONS Release DESTINATION "bin_${ARCH}/${PROJNAME}")
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install(FILES ${CUBIN_SOURCES} CONFIGURATIONS Debug DESTINATION "bin_${ARCH}_debug/${PROJNAME}")
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install(DIRECTORY "../media" CONFIGURATIONS Release DESTINATION "bin_${ARCH}/${PROJNAME}")
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install(DIRECTORY "../media" CONFIGURATIONS Debug DESTINATION "bin_${ARCH}_debug/${PROJNAME}")
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#install(FILES ${SPV_OUTPUT} CONFIGURATIONS Release DESTINATION "bin_${ARCH}/${PROJNAME}/shaders")
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#install(FILES ${SPV_OUTPUT} CONFIGURATIONS Debug DESTINATION "bin_${ARCH}_debug/${PROJNAME}/shaders")
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#install(FILES ${CUBIN_SOURCES} CONFIGURATIONS Release DESTINATION "bin_${ARCH}/${PROJNAME}")
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#install(FILES ${CUBIN_SOURCES} CONFIGURATIONS Debug DESTINATION "bin_${ARCH}_debug/${PROJNAME}")
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#install(DIRECTORY "../media" CONFIGURATIONS Release DESTINATION "bin_${ARCH}/${PROJNAME}")
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#install(DIRECTORY "../media" CONFIGURATIONS Debug DESTINATION "bin_${ARCH}_debug/${PROJNAME}")
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#----------------------------------------------------------------------------------------------------
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# Copying elements
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# Media
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# target_copy_to_output_dir(TARGET ${PROJECT_NAME} FILES "${TUTO_KHR_DIR}/media")
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# Spir-V Shaders
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target_copy_to_output_dir(
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TARGET ${PROJECT_NAME}
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RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
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DEST_SUBFOLDER "${PROJECT_NAME}/"
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FILES ${SPV_OUTPUT}
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)
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@ -95,7 +95,7 @@ Then we will flatten the scene graph and grab the information we will need using
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nvh::GltfAttributes::Normal | nvh::GltfAttributes::Texcoord_0);
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~~~~
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The next par is to allocate the buffers to hold the information, such as the positions, normals, texture coordinates, etc.
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The next part is to allocate the buffers to hold the information, such as the positions, normals, texture coordinates, etc.
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~~~~C
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m_vertexBuffer =
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@ -145,35 +145,26 @@ The function is similar, only the input is different.
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//
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nvvk::RaytracingBuilderKHR::Blas HelloVulkan::primitiveToGeometry(const nvh::GltfPrimMesh& prim)
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{
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// Setting up the creation info of acceleration structure
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vk::AccelerationStructureCreateGeometryTypeInfoKHR asCreate;
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asCreate.setGeometryType(vk::GeometryTypeKHR::eTriangles);
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asCreate.setIndexType(vk::IndexType::eUint32);
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asCreate.setVertexFormat(vk::Format::eR32G32B32Sfloat);
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asCreate.setMaxPrimitiveCount(prim.indexCount / 3); // Nb triangles
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asCreate.setMaxVertexCount(prim.vertexCount);
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asCreate.setAllowsTransforms(VK_FALSE); // No adding transformation matrices
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// Building part
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// Building part
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vk::DeviceAddress vertexAddress = m_device.getBufferAddress({m_vertexBuffer.buffer});
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vk::DeviceAddress indexAddress = m_device.getBufferAddress({m_indexBuffer.buffer});
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vk::AccelerationStructureGeometryTrianglesDataKHR triangles;
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triangles.setVertexFormat(asCreate.vertexFormat);
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triangles.setVertexFormat(vk::Format::eR32G32B32Sfloat);
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triangles.setVertexData(vertexAddress);
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triangles.setVertexStride(sizeof(nvmath::vec3f));
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triangles.setIndexType(asCreate.indexType);
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triangles.setIndexType(vk::IndexType::eUint32);
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triangles.setIndexData(indexAddress);
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triangles.setTransformData({});
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triangles.setMaxVertex(prim.vertexCount);
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// Setting up the build info of the acceleration
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vk::AccelerationStructureGeometryKHR asGeom;
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asGeom.setGeometryType(asCreate.geometryType);
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asGeom.setGeometryType(vk::GeometryTypeKHR::eTriangles);
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asGeom.setFlags(vk::GeometryFlagBitsKHR::eNoDuplicateAnyHitInvocation); // For AnyHit
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asGeom.geometry.setTriangles(triangles);
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vk::AccelerationStructureBuildOffsetInfoKHR offset;
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vk::AccelerationStructureBuildRangeInfoKHR offset;
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offset.setFirstVertex(prim.vertexOffset);
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offset.setPrimitiveCount(prim.indexCount / 3);
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offset.setPrimitiveOffset(prim.firstIndex * sizeof(uint32_t));
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@ -181,7 +172,6 @@ nvvk::RaytracingBuilderKHR::Blas HelloVulkan::primitiveToGeometry(const nvh::Glt
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nvvk::RaytracingBuilderKHR::Blas blas;
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blas.asGeometry.emplace_back(asGeom);
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blas.asCreateGeometryInfo.emplace_back(asCreate);
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blas.asBuildOffsetInfo.emplace_back(offset);
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return blas;
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}
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@ -283,7 +273,7 @@ Camera position
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Scene
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~~~~C
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helloVk.loadScene(nvh::findFile("media/scenes/cornellBox.gltf", defaultSearchPaths));
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helloVk.loadScene(nvh::findFile("media/scenes/cornellBox.gltf", defaultSearchPaths, true));
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~~~~
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Light Position
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@ -310,12 +300,16 @@ Add the following two functions in `hello_vulkan.cpp`:
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void HelloVulkan::updateFrame()
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{
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static nvmath::mat4f refCamMatrix;
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static float refFov{CameraManip.getFov()};
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auto& m = CameraManip.getMatrix();
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if(memcmp(&refCamMatrix.a00, &m.a00, sizeof(nvmath::mat4f)) != 0)
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const auto& m = CameraManip.getMatrix();
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const auto fov = CameraManip.getFov();
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if(memcmp(&refCamMatrix.a00, &m.a00, sizeof(nvmath::mat4f)) != 0 || refFov != fov)
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{
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resetFrame();
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refCamMatrix = m;
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refFov = fov;
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}
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m_rtPushConstants.frame++;
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}
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@ -505,7 +499,7 @@ First initialize the `payload` and variable to compute the accumulation.
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Now the loop over the trace function, will be like the following.
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:warning: **Note:** the depth is hardcode, but could be a parameter to the `push constant`.
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**Note:** the depth is hardcode, but could be a parameter to the `push constant`.
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~~~~C
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for(; prd.depth < 10; prd.depth++)
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@ -528,6 +522,6 @@ Now the loop over the trace function, will be like the following.
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}
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~~~~
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:warning: **Note:** do not forget to use `hitValue` in the `imageStore`.
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**Note:** do not forget to use `hitValue` in the `imageStore`.
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@ -46,6 +46,7 @@ extern std::vector<std::string> defaultSearchPaths;
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#include "nvvk/renderpasses_vk.hpp"
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#include "nvvk/shaders_vk.hpp"
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#include "nvh/alignment.hpp"
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#include "shaders/binding.glsl"
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// Holding the camera matrices
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@ -182,8 +183,8 @@ void HelloVulkan::createGraphicsPipeline()
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std::vector<std::string> paths = defaultSearchPaths;
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nvvk::GraphicsPipelineGeneratorCombined gpb(m_device, m_pipelineLayout, m_offscreenRenderPass);
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gpb.depthStencilState.depthTestEnable = true;
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gpb.addShader(nvh::loadFile("shaders/vert_shader.vert.spv", true, paths), vkSS::eVertex);
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gpb.addShader(nvh::loadFile("shaders/frag_shader.frag.spv", true, paths), vkSS::eFragment);
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gpb.addShader(nvh::loadFile("shaders/vert_shader.vert.spv", true, paths, true), vkSS::eVertex);
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gpb.addShader(nvh::loadFile("shaders/frag_shader.frag.spv", true, paths, true), vkSS::eFragment);
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gpb.addBindingDescriptions(
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{{0, sizeof(nvmath::vec3)}, {1, sizeof(nvmath::vec3)}, {2, sizeof(nvmath::vec2)}});
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gpb.addAttributeDescriptions({
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@ -205,6 +206,7 @@ void HelloVulkan::loadScene(const std::string& filename)
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tinygltf::TinyGLTF tcontext;
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std::string warn, error;
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LOGI("Loading file: %s", filename.c_str());
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if(!tcontext.LoadASCIIFromFile(&tmodel, &error, &warn, filename))
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{
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assert(!"Error while loading scene");
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@ -223,10 +225,12 @@ void HelloVulkan::loadScene(const std::string& filename)
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m_vertexBuffer =
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m_alloc.createBuffer(cmdBuf, m_gltfScene.m_positions,
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vkBU::eVertexBuffer | vkBU::eStorageBuffer | vkBU::eShaderDeviceAddress);
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vkBU::eVertexBuffer | vkBU::eStorageBuffer | vkBU::eShaderDeviceAddress
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| vkBU::eAccelerationStructureBuildInputReadOnlyKHR);
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m_indexBuffer =
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m_alloc.createBuffer(cmdBuf, m_gltfScene.m_indices,
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vkBU::eIndexBuffer | vkBU::eStorageBuffer | vkBU::eShaderDeviceAddress);
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vkBU::eIndexBuffer | vkBU::eStorageBuffer | vkBU::eShaderDeviceAddress
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| vkBU::eAccelerationStructureBuildInputReadOnlyKHR);
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m_normalBuffer = m_alloc.createBuffer(cmdBuf, m_gltfScene.m_normals,
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vkBU::eVertexBuffer | vkBU::eStorageBuffer);
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m_uvBuffer = m_alloc.createBuffer(cmdBuf, m_gltfScene.m_texcoords0,
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@ -525,9 +529,9 @@ void HelloVulkan::createPostPipeline()
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nvvk::GraphicsPipelineGeneratorCombined pipelineGenerator(m_device, m_postPipelineLayout,
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m_renderPass);
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pipelineGenerator.addShader(nvh::loadFile("shaders/passthrough.vert.spv", true, paths),
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pipelineGenerator.addShader(nvh::loadFile("shaders/passthrough.vert.spv", true, paths, true),
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vk::ShaderStageFlagBits::eVertex);
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pipelineGenerator.addShader(nvh::loadFile("shaders/post.frag.spv", true, paths),
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pipelineGenerator.addShader(nvh::loadFile("shaders/post.frag.spv", true, paths, true),
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vk::ShaderStageFlagBits::eFragment);
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pipelineGenerator.rasterizationState.setCullMode(vk::CullModeFlagBits::eNone);
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m_postPipeline = pipelineGenerator.createPipeline();
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@ -591,54 +595,46 @@ void HelloVulkan::drawPost(vk::CommandBuffer cmdBuf)
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void HelloVulkan::initRayTracing()
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{
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// Requesting ray tracing properties
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auto properties = m_physicalDevice.getProperties2<vk::PhysicalDeviceProperties2,
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vk::PhysicalDeviceRayTracingPropertiesKHR>();
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m_rtProperties = properties.get<vk::PhysicalDeviceRayTracingPropertiesKHR>();
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auto properties =
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m_physicalDevice.getProperties2<vk::PhysicalDeviceProperties2,
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vk::PhysicalDeviceRayTracingPipelinePropertiesKHR>();
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m_rtProperties = properties.get<vk::PhysicalDeviceRayTracingPipelinePropertiesKHR>();
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m_rtBuilder.setup(m_device, &m_alloc, m_graphicsQueueIndex);
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}
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//--------------------------------------------------------------------------------------------------
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// Converting a GLTF primitive in the Raytracing Geometry used for the BLAS
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//
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nvvk::RaytracingBuilderKHR::Blas HelloVulkan::primitiveToGeometry(const nvh::GltfPrimMesh& prim)
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nvvk::RaytracingBuilderKHR::BlasInput HelloVulkan::primitiveToGeometry(
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const nvh::GltfPrimMesh& prim)
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{
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// Setting up the creation info of acceleration structure
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vk::AccelerationStructureCreateGeometryTypeInfoKHR asCreate;
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asCreate.setGeometryType(vk::GeometryTypeKHR::eTriangles);
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asCreate.setIndexType(vk::IndexType::eUint32);
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asCreate.setVertexFormat(vk::Format::eR32G32B32Sfloat);
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asCreate.setMaxPrimitiveCount(prim.indexCount / 3); // Nb triangles
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asCreate.setMaxVertexCount(prim.vertexCount);
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asCreate.setAllowsTransforms(VK_FALSE); // No adding transformation matrices
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// Building part
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vk::DeviceAddress vertexAddress = m_device.getBufferAddress({m_vertexBuffer.buffer});
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vk::DeviceAddress indexAddress = m_device.getBufferAddress({m_indexBuffer.buffer});
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vk::AccelerationStructureGeometryTrianglesDataKHR triangles;
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triangles.setVertexFormat(asCreate.vertexFormat);
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triangles.setVertexFormat(vk::Format::eR32G32B32Sfloat);
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triangles.setVertexData(vertexAddress);
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triangles.setVertexStride(sizeof(nvmath::vec3f));
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triangles.setIndexType(asCreate.indexType);
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triangles.setIndexType(vk::IndexType::eUint32);
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triangles.setIndexData(indexAddress);
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triangles.setTransformData({});
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triangles.setMaxVertex(prim.vertexCount);
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// Setting up the build info of the acceleration
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vk::AccelerationStructureGeometryKHR asGeom;
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asGeom.setGeometryType(asCreate.geometryType);
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asGeom.setGeometryType(vk::GeometryTypeKHR::eTriangles);
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asGeom.setFlags(vk::GeometryFlagBitsKHR::eNoDuplicateAnyHitInvocation); // For AnyHit
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asGeom.geometry.setTriangles(triangles);
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vk::AccelerationStructureBuildOffsetInfoKHR offset;
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vk::AccelerationStructureBuildRangeInfoKHR offset;
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offset.setFirstVertex(prim.vertexOffset);
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offset.setPrimitiveCount(prim.indexCount / 3);
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offset.setPrimitiveOffset(prim.firstIndex * sizeof(uint32_t));
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offset.setTransformOffset(0);
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nvvk::RaytracingBuilderKHR::Blas blas;
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nvvk::RaytracingBuilderKHR::BlasInput blas;
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blas.asGeometry.emplace_back(asGeom);
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blas.asCreateGeometryInfo.emplace_back(asCreate);
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blas.asBuildOffsetInfo.emplace_back(offset);
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return blas;
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}
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|
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@ -649,7 +645,7 @@ nvvk::RaytracingBuilderKHR::Blas HelloVulkan::primitiveToGeometry(const nvh::Glt
|
|||
void HelloVulkan::createBottomLevelAS()
|
||||
{
|
||||
// BLAS - Storing each primitive in a geometry
|
||||
std::vector<nvvk::RaytracingBuilderKHR::Blas> allBlas;
|
||||
std::vector<nvvk::RaytracingBuilderKHR::BlasInput> allBlas;
|
||||
allBlas.reserve(m_gltfScene.m_primMeshes.size());
|
||||
for(auto& primMesh : m_gltfScene.m_primMeshes)
|
||||
{
|
||||
|
|
@ -738,16 +734,15 @@ void HelloVulkan::createRtPipeline()
|
|||
|
||||
vk::ShaderModule raygenSM =
|
||||
nvvk::createShaderModule(m_device, //
|
||||
nvh::loadFile("shaders/pathtrace.rgen.spv", true, paths));
|
||||
nvh::loadFile("shaders/pathtrace.rgen.spv", true, paths, true));
|
||||
vk::ShaderModule missSM =
|
||||
nvvk::createShaderModule(m_device, //
|
||||
nvh::loadFile("shaders/pathtrace.rmiss.spv", true, paths));
|
||||
nvh::loadFile("shaders/pathtrace.rmiss.spv", true, paths, true));
|
||||
|
||||
// The second miss shader is invoked when a shadow ray misses the geometry. It
|
||||
// simply indicates that no occlusion has been found
|
||||
vk::ShaderModule shadowmissSM =
|
||||
nvvk::createShaderModule(m_device,
|
||||
nvh::loadFile("shaders/raytraceShadow.rmiss.spv", true, paths));
|
||||
vk::ShaderModule shadowmissSM = nvvk::createShaderModule(
|
||||
m_device, nvh::loadFile("shaders/raytraceShadow.rmiss.spv", true, paths, true));
|
||||
|
||||
|
||||
std::vector<vk::PipelineShaderStageCreateInfo> stages;
|
||||
|
|
@ -774,7 +769,7 @@ void HelloVulkan::createRtPipeline()
|
|||
// Hit Group - Closest Hit + AnyHit
|
||||
vk::ShaderModule chitSM =
|
||||
nvvk::createShaderModule(m_device, //
|
||||
nvh::loadFile("shaders/pathtrace.rchit.spv", true, paths));
|
||||
nvh::loadFile("shaders/pathtrace.rchit.spv", true, paths, true));
|
||||
|
||||
vk::RayTracingShaderGroupCreateInfoKHR hg{vk::RayTracingShaderGroupTypeKHR::eTrianglesHitGroup,
|
||||
VK_SHADER_UNUSED_KHR, VK_SHADER_UNUSED_KHR,
|
||||
|
|
@ -810,10 +805,10 @@ void HelloVulkan::createRtPipeline()
|
|||
m_rtShaderGroups.size())); // 1-raygen, n-miss, n-(hit[+anyhit+intersect])
|
||||
rayPipelineInfo.setPGroups(m_rtShaderGroups.data());
|
||||
|
||||
rayPipelineInfo.setMaxRecursionDepth(2); // Ray depth
|
||||
rayPipelineInfo.setMaxPipelineRayRecursionDepth(2); // Ray depth
|
||||
rayPipelineInfo.setLayout(m_rtPipelineLayout);
|
||||
m_rtPipeline =
|
||||
static_cast<const vk::Pipeline&>(m_device.createRayTracingPipelineKHR({}, rayPipelineInfo));
|
||||
m_rtPipeline = static_cast<const vk::Pipeline&>(
|
||||
m_device.createRayTracingPipelineKHR({}, {}, rayPipelineInfo));
|
||||
|
||||
m_device.destroy(raygenSM);
|
||||
m_device.destroy(missSM);
|
||||
|
|
@ -832,18 +827,24 @@ void HelloVulkan::createRtShaderBindingTable()
|
|||
auto groupCount =
|
||||
static_cast<uint32_t>(m_rtShaderGroups.size()); // 3 shaders: raygen, miss, chit
|
||||
uint32_t groupHandleSize = m_rtProperties.shaderGroupHandleSize; // Size of a program identifier
|
||||
uint32_t baseAlignment = m_rtProperties.shaderGroupBaseAlignment; // Size of shader alignment
|
||||
uint32_t groupSizeAligned =
|
||||
nvh::align_up(groupHandleSize, m_rtProperties.shaderGroupBaseAlignment);
|
||||
|
||||
// Fetch all the shader handles used in the pipeline, so that they can be written in the SBT
|
||||
uint32_t sbtSize = groupCount * baseAlignment;
|
||||
uint32_t sbtSize = groupCount * groupSizeAligned;
|
||||
|
||||
std::vector<uint8_t> shaderHandleStorage(sbtSize);
|
||||
m_device.getRayTracingShaderGroupHandlesKHR(m_rtPipeline, 0, groupCount, sbtSize,
|
||||
shaderHandleStorage.data());
|
||||
auto result = m_device.getRayTracingShaderGroupHandlesKHR(m_rtPipeline, 0, groupCount, sbtSize,
|
||||
shaderHandleStorage.data());
|
||||
if(result != vk::Result::eSuccess)
|
||||
LOGE("Fail getRayTracingShaderGroupHandlesKHR: %s", vk::to_string(result));
|
||||
|
||||
// Write the handles in the SBT
|
||||
m_rtSBTBuffer = m_alloc.createBuffer(sbtSize, vk::BufferUsageFlagBits::eTransferSrc,
|
||||
vk::MemoryPropertyFlagBits::eHostVisible
|
||||
| vk::MemoryPropertyFlagBits::eHostCoherent);
|
||||
m_rtSBTBuffer = m_alloc.createBuffer(
|
||||
sbtSize,
|
||||
vk::BufferUsageFlagBits::eTransferSrc | vk::BufferUsageFlagBits::eShaderDeviceAddressKHR
|
||||
| vk::BufferUsageFlagBits::eShaderBindingTableKHR,
|
||||
vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent);
|
||||
m_debug.setObjectName(m_rtSBTBuffer.buffer, std::string("SBT").c_str());
|
||||
|
||||
// Write the handles in the SBT
|
||||
|
|
@ -852,7 +853,7 @@ void HelloVulkan::createRtShaderBindingTable()
|
|||
for(uint32_t g = 0; g < groupCount; g++)
|
||||
{
|
||||
memcpy(pData, shaderHandleStorage.data() + g * groupHandleSize, groupHandleSize); // raygen
|
||||
pData += baseAlignment;
|
||||
pData += groupSizeAligned;
|
||||
}
|
||||
m_alloc.unmap(m_rtSBTBuffer);
|
||||
|
||||
|
|
@ -883,25 +884,23 @@ void HelloVulkan::raytrace(const vk::CommandBuffer& cmdBuf, const nvmath::vec4f&
|
|||
| vk::ShaderStageFlagBits::eMissKHR,
|
||||
0, m_rtPushConstants);
|
||||
|
||||
vk::DeviceSize progSize =
|
||||
m_rtProperties.shaderGroupBaseAlignment; // Size of a program identifier
|
||||
vk::DeviceSize rayGenOffset = 0u * progSize; // Start at the beginning of m_sbtBuffer
|
||||
vk::DeviceSize missOffset = 1u * progSize; // Jump over raygen
|
||||
vk::DeviceSize hitGroupOffset = 3u * progSize; // Jump over the previous shaders
|
||||
// Size of a program identifier
|
||||
uint32_t groupSize =
|
||||
nvh::align_up(m_rtProperties.shaderGroupHandleSize, m_rtProperties.shaderGroupBaseAlignment);
|
||||
uint32_t groupStride = groupSize;
|
||||
vk::DeviceAddress sbtAddress = m_device.getBufferAddress({m_rtSBTBuffer.buffer});
|
||||
|
||||
vk::DeviceSize sbtSize = progSize * (vk::DeviceSize)m_rtShaderGroups.size();
|
||||
using Stride = vk::StridedDeviceAddressRegionKHR;
|
||||
std::array<Stride, 4> strideAddresses{
|
||||
Stride{sbtAddress + 0u * groupSize, groupStride, groupSize * 1}, // raygen
|
||||
Stride{sbtAddress + 1u * groupSize, groupStride, groupSize * 2}, // miss
|
||||
Stride{sbtAddress + 3u * groupSize, groupStride, groupSize * 1}, // hit
|
||||
Stride{0u, 0u, 0u}}; // callable
|
||||
|
||||
const vk::StridedBufferRegionKHR raygenShaderBindingTable = {m_rtSBTBuffer.buffer, rayGenOffset,
|
||||
progSize, sbtSize};
|
||||
const vk::StridedBufferRegionKHR missShaderBindingTable = {m_rtSBTBuffer.buffer, missOffset,
|
||||
progSize, sbtSize};
|
||||
const vk::StridedBufferRegionKHR hitShaderBindingTable = {m_rtSBTBuffer.buffer, hitGroupOffset,
|
||||
progSize, sbtSize};
|
||||
const vk::StridedBufferRegionKHR callableShaderBindingTable;
|
||||
|
||||
cmdBuf.traceRaysKHR(&raygenShaderBindingTable, &missShaderBindingTable, &hitShaderBindingTable,
|
||||
&callableShaderBindingTable, //
|
||||
m_size.width, m_size.height, 1); //
|
||||
cmdBuf.traceRaysKHR(&strideAddresses[0], &strideAddresses[1], &strideAddresses[2],
|
||||
&strideAddresses[3], //
|
||||
m_size.width, m_size.height,
|
||||
1); //
|
||||
|
||||
|
||||
m_debug.endLabel(cmdBuf);
|
||||
|
|
@ -914,12 +913,16 @@ void HelloVulkan::raytrace(const vk::CommandBuffer& cmdBuf, const nvmath::vec4f&
|
|||
void HelloVulkan::updateFrame()
|
||||
{
|
||||
static nvmath::mat4f refCamMatrix;
|
||||
static float refFov{CameraManip.getFov()};
|
||||
|
||||
auto& m = CameraManip.getMatrix();
|
||||
if(memcmp(&refCamMatrix.a00, &m.a00, sizeof(nvmath::mat4f)) != 0)
|
||||
const auto& m = CameraManip.getMatrix();
|
||||
const auto fov = CameraManip.getFov();
|
||||
|
||||
if(memcmp(&refCamMatrix.a00, &m.a00, sizeof(nvmath::mat4f)) != 0 || refFov != fov)
|
||||
{
|
||||
resetFrame();
|
||||
refCamMatrix = m;
|
||||
refFov = fov;
|
||||
}
|
||||
m_rtPushConstants.frame++;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -127,7 +127,7 @@ public:
|
|||
vk::Format m_offscreenDepthFormat{vk::Format::eD32Sfloat};
|
||||
|
||||
// #VKRay
|
||||
nvvk::RaytracingBuilderKHR::Blas primitiveToGeometry(const nvh::GltfPrimMesh& prim);
|
||||
nvvk::RaytracingBuilderKHR::BlasInput primitiveToGeometry(const nvh::GltfPrimMesh& prim);
|
||||
|
||||
void initRayTracing();
|
||||
void createBottomLevelAS();
|
||||
|
|
@ -140,7 +140,7 @@ public:
|
|||
void updateFrame();
|
||||
void resetFrame();
|
||||
|
||||
vk::PhysicalDeviceRayTracingPropertiesKHR m_rtProperties;
|
||||
vk::PhysicalDeviceRayTracingPipelinePropertiesKHR m_rtProperties;
|
||||
nvvk::RaytracingBuilderKHR m_rtBuilder;
|
||||
nvvk::DescriptorSetBindings m_rtDescSetLayoutBind;
|
||||
vk::DescriptorPool m_rtDescPool;
|
||||
|
|
|
|||
|
|
@ -37,6 +37,7 @@ VULKAN_HPP_DEFAULT_DISPATCH_LOADER_DYNAMIC_STORAGE
|
|||
#include "imgui_impl_glfw.h"
|
||||
|
||||
#include "hello_vulkan.h"
|
||||
#include "imgui_camera_widget.h"
|
||||
#include "nvh/cameramanipulator.hpp"
|
||||
#include "nvh/fileoperations.hpp"
|
||||
#include "nvpsystem.hpp"
|
||||
|
|
@ -61,19 +62,16 @@ static void onErrorCallback(int error, const char* description)
|
|||
// Extra UI
|
||||
void renderUI(HelloVulkan& helloVk)
|
||||
{
|
||||
static int item = 1;
|
||||
if(ImGui::Combo("Up Vector", &item, "X\0Y\0Z\0\0"))
|
||||
ImGuiH::CameraWidget();
|
||||
if(ImGui::CollapsingHeader("Light"))
|
||||
{
|
||||
nvmath::vec3f pos, eye, up;
|
||||
CameraManip.getLookat(pos, eye, up);
|
||||
up = nvmath::vec3f(item == 0, item == 1, item == 2);
|
||||
CameraManip.setLookat(pos, eye, up);
|
||||
ImGui::RadioButton("Point", &helloVk.m_pushConstant.lightType, 0);
|
||||
ImGui::SameLine();
|
||||
ImGui::RadioButton("Infinite", &helloVk.m_pushConstant.lightType, 1);
|
||||
|
||||
ImGui::SliderFloat3("Position", &helloVk.m_pushConstant.lightPosition.x, -20.f, 20.f);
|
||||
ImGui::SliderFloat("Intensity", &helloVk.m_pushConstant.lightIntensity, 0.f, 150.f);
|
||||
}
|
||||
ImGui::SliderFloat3("Light Position", &helloVk.m_pushConstant.lightPosition.x, -20.f, 20.f);
|
||||
ImGui::SliderFloat("Light Intensity", &helloVk.m_pushConstant.lightIntensity, 0.f, 100.f);
|
||||
ImGui::RadioButton("Point", &helloVk.m_pushConstant.lightType, 0);
|
||||
ImGui::SameLine();
|
||||
ImGui::RadioButton("Infinite", &helloVk.m_pushConstant.lightType, 1);
|
||||
}
|
||||
|
||||
//////////////////////////////////////////////////////////////////////////
|
||||
|
|
@ -115,18 +113,16 @@ int main(int argc, char** argv)
|
|||
|
||||
// Search path for shaders and other media
|
||||
defaultSearchPaths = {
|
||||
PROJECT_ABSDIRECTORY, // shaders
|
||||
PROJECT_ABSDIRECTORY "../", // media
|
||||
PROJECT_NAME, // installed: shaders + media
|
||||
NVPSystem::exePath(),
|
||||
NVPSystem::exePath() + std::string(PROJECT_NAME),
|
||||
};
|
||||
|
||||
|
||||
// Requesting Vulkan extensions and layers
|
||||
nvvk::ContextCreateInfo contextInfo(true);
|
||||
contextInfo.setVersion(1, 2);
|
||||
contextInfo.addInstanceLayer("VK_LAYER_LUNARG_monitor", true);
|
||||
contextInfo.addInstanceExtension(VK_KHR_SURFACE_EXTENSION_NAME);
|
||||
contextInfo.addInstanceExtension(VK_EXT_DEBUG_UTILS_EXTENSION_NAME, true);
|
||||
#ifdef WIN32
|
||||
contextInfo.addInstanceExtension(VK_KHR_WIN32_SURFACE_EXTENSION_NAME);
|
||||
#else
|
||||
|
|
@ -138,13 +134,17 @@ int main(int argc, char** argv)
|
|||
contextInfo.addDeviceExtension(VK_KHR_DEDICATED_ALLOCATION_EXTENSION_NAME);
|
||||
contextInfo.addDeviceExtension(VK_KHR_GET_MEMORY_REQUIREMENTS_2_EXTENSION_NAME);
|
||||
// #VKRay: Activate the ray tracing extension
|
||||
vk::PhysicalDeviceRayTracingFeaturesKHR raytracingFeature;
|
||||
contextInfo.addDeviceExtension(VK_KHR_RAY_TRACING_EXTENSION_NAME, false, &raytracingFeature);
|
||||
contextInfo.addDeviceExtension(VK_KHR_MAINTENANCE3_EXTENSION_NAME);
|
||||
contextInfo.addDeviceExtension(VK_KHR_PIPELINE_LIBRARY_EXTENSION_NAME);
|
||||
contextInfo.addDeviceExtension(VK_KHR_DEFERRED_HOST_OPERATIONS_EXTENSION_NAME);
|
||||
contextInfo.addDeviceExtension(VK_KHR_BUFFER_DEVICE_ADDRESS_EXTENSION_NAME);
|
||||
contextInfo.addDeviceExtension(VK_KHR_SHADER_CLOCK_EXTENSION_NAME);
|
||||
vk::PhysicalDeviceAccelerationStructureFeaturesKHR accelFeature;
|
||||
contextInfo.addDeviceExtension(VK_KHR_ACCELERATION_STRUCTURE_EXTENSION_NAME, false,
|
||||
&accelFeature);
|
||||
vk::PhysicalDeviceRayTracingPipelineFeaturesKHR rtPipelineFeature;
|
||||
contextInfo.addDeviceExtension(VK_KHR_RAY_TRACING_PIPELINE_EXTENSION_NAME, false,
|
||||
&rtPipelineFeature);
|
||||
|
||||
|
||||
// Creating Vulkan base application
|
||||
|
|
@ -166,7 +166,7 @@ int main(int argc, char** argv)
|
|||
|
||||
helloVk.setup(vkctx.m_instance, vkctx.m_device, vkctx.m_physicalDevice,
|
||||
vkctx.m_queueGCT.familyIndex);
|
||||
helloVk.createSurface(surface, SAMPLE_WIDTH, SAMPLE_HEIGHT);
|
||||
helloVk.createSwapchain(surface, SAMPLE_WIDTH, SAMPLE_HEIGHT);
|
||||
helloVk.createDepthBuffer();
|
||||
helloVk.createRenderPass();
|
||||
helloVk.createFrameBuffers();
|
||||
|
|
@ -175,7 +175,7 @@ int main(int argc, char** argv)
|
|||
helloVk.initGUI(0); // Using sub-pass 0
|
||||
|
||||
// Creation of the example
|
||||
helloVk.loadScene(nvh::findFile("media/scenes/cornellBox.gltf", defaultSearchPaths));
|
||||
helloVk.loadScene(nvh::findFile("media/scenes/cornellBox.gltf", defaultSearchPaths, true));
|
||||
|
||||
|
||||
helloVk.createOffscreenRender();
|
||||
|
|
@ -219,15 +219,17 @@ int main(int argc, char** argv)
|
|||
helloVk.updateUniformBuffer();
|
||||
|
||||
// Show UI window.
|
||||
if(1 == 1)
|
||||
if(helloVk.showGui())
|
||||
{
|
||||
ImGuiH::Panel::Begin();
|
||||
ImGui::ColorEdit3("Clear color", reinterpret_cast<float*>(&clearColor));
|
||||
ImGui::Checkbox("Ray Tracer mode", &useRaytracer); // Switch between raster and ray tracing
|
||||
|
||||
renderUI(helloVk);
|
||||
ImGui::Text("Application average %.3f ms/frame (%.1f FPS)",
|
||||
1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
|
||||
ImGui::Render();
|
||||
ImGuiH::Control::Info("", "", "(F10) Toggle Pane", ImGuiH::Control::Flags::Disabled);
|
||||
ImGuiH::Panel::End();
|
||||
}
|
||||
|
||||
// Start rendering the scene
|
||||
|
|
@ -280,6 +282,7 @@ int main(int argc, char** argv)
|
|||
// Rendering tonemapper
|
||||
helloVk.drawPost(cmdBuff);
|
||||
// Rendering UI
|
||||
ImGui::Render();
|
||||
ImGui::RenderDrawDataVK(cmdBuff, ImGui::GetDrawData());
|
||||
cmdBuff.endRenderPass();
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue