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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@ -17,7 +17,7 @@ The any hit shader can be useful for discarding intersections, such as for alpha
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used for simple transparency. In this example we will show what is needed to do to add this shader type and to create a
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transparency effect.
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:warning: **Note:**
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**Note:**
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This example is based on many elements from the [Antialiasing Tutorial](vkrt_tuto_jitter_cam.md.htm).
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@ -49,7 +49,7 @@ layout(binding = 1, set = 1, scalar) buffer MatColorBufferObject { WaveFrontMate
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// clang-format on
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~~~~
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:warning: **Note:**
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**Note:**
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You can find the source of `random.glsl` in the Antialiasing Tutorial [here](../ray_tracing_jitter_cam/README.md#toc1.1).
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@ -205,11 +205,11 @@ uint flags = gl_RayFlagsSkipClosestHitShaderEXT;
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For a more interesting scene, you can replace the `helloVk.loadModel` calls in `main()` with the following scene:
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~~~~ C++
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helloVk.loadModel(nvh::findFile("media/scenes/wuson.obj", defaultSearchPaths));
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helloVk.loadModel(nvh::findFile("media/scenes/sphere.obj", defaultSearchPaths),
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helloVk.loadModel(nvh::findFile("media/scenes/wuson.obj", defaultSearchPaths, true));
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helloVk.loadModel(nvh::findFile("media/scenes/sphere.obj", defaultSearchPaths, true),
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nvmath::scale_mat4(nvmath::vec3f(1.5f))
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* nvmath::translation_mat4(nvmath::vec3f(0.0f, 1.0f, 0.0f)));
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helloVk.loadModel(nvh::findFile("media/scenes/plane.obj", defaultSearchPaths));
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helloVk.loadModel(nvh::findFile("media/scenes/plane.obj", defaultSearchPaths, true));
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~~~~
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## OBJ Materials
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@ -259,7 +259,7 @@ And we need to add the following to the ray tracing pipeline, a copy of the prev
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Create two new files `raytrace_0.ahit` and `raytrace_1.ahit`, and rename `raytrace.ahit` to `raytrace_ahit.glsl`
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:warning: **Note:**
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**Note:**
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Cmake need to be re-run to add the new files to the project.
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In `raytrace_0.ahit` add the following code
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@ -390,7 +390,7 @@ m_rtShaderGroups.push_back(hg);
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At the end of the function, delete the shader module `ahit1SM`.
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:warning: **Note:** Re-Run
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**Note:** Re-Run
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Everything should work as before, but now it does it right.
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@ -39,6 +39,7 @@ extern std::vector<std::string> defaultSearchPaths;
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#include "nvvk/descriptorsets_vk.hpp"
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#include "nvvk/pipeline_vk.hpp"
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#include "nvh/alignment.hpp"
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#include "nvh/fileoperations.hpp"
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#include "nvvk/commands_vk.hpp"
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#include "nvvk/renderpasses_vk.hpp"
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@ -165,7 +166,7 @@ void HelloVulkan::updateDescriptorSet()
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std::vector<vk::DescriptorImageInfo> diit;
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for(auto& texture : m_textures)
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{
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diit.push_back(texture.descriptor);
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diit.emplace_back(texture.descriptor);
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}
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writes.emplace_back(m_descSetLayoutBind.makeWriteArray(m_descSet, 3, diit.data()));
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@ -196,8 +197,8 @@ 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.addBindingDescription({0, sizeof(VertexObj)});
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gpb.addAttributeDescriptions({{0, 0, vk::Format::eR32G32B32Sfloat, offsetof(VertexObj, pos)},
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{1, 0, vk::Format::eR32G32B32Sfloat, offsetof(VertexObj, nrm)},
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@ -215,6 +216,7 @@ void HelloVulkan::loadModel(const std::string& filename, nvmath::mat4f transform
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{
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using vkBU = vk::BufferUsageFlagBits;
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LOGI("Loading File: %s \n", filename.c_str());
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ObjLoader loader;
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loader.loadModel(filename);
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@ -241,10 +243,12 @@ void HelloVulkan::loadModel(const std::string& filename, nvmath::mat4f transform
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vk::CommandBuffer cmdBuf = cmdBufGet.createCommandBuffer();
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model.vertexBuffer =
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m_alloc.createBuffer(cmdBuf, loader.m_vertices,
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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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model.indexBuffer =
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m_alloc.createBuffer(cmdBuf, loader.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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model.matColorBuffer = m_alloc.createBuffer(cmdBuf, loader.m_materials, vkBU::eStorageBuffer);
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model.matIndexBuffer = m_alloc.createBuffer(cmdBuf, loader.m_matIndx, vkBU::eStorageBuffer);
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// Creates all textures found
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@ -317,7 +321,7 @@ void HelloVulkan::createTextureImages(const vk::CommandBuffer& cmdBuf,
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auto imgSize = vk::Extent2D(1, 1);
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auto imageCreateInfo = nvvk::makeImage2DCreateInfo(imgSize, format);
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// Creating the dummy texure
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// Creating the dummy texture
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nvvk::Image image = m_alloc.createImage(cmdBuf, bufferSize, color.data(), imageCreateInfo);
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vk::ImageViewCreateInfo ivInfo = nvvk::makeImageViewCreateInfo(image.image, imageCreateInfo);
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texture = m_alloc.createTexture(image, ivInfo, samplerCreateInfo);
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@ -335,9 +339,10 @@ void HelloVulkan::createTextureImages(const vk::CommandBuffer& cmdBuf,
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std::stringstream o;
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int texWidth, texHeight, texChannels;
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o << "media/textures/" << texture;
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std::string txtFile = nvh::findFile(o.str(), defaultSearchPaths);
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std::string txtFile = nvh::findFile(o.str(), defaultSearchPaths, true);
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stbi_uc* stbi_pixels = stbi_load(txtFile.c_str(), &texWidth, &texHeight, &texChannels, STBI_rgb_alpha);
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stbi_uc* stbi_pixels =
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stbi_load(txtFile.c_str(), &texWidth, &texHeight, &texChannels, STBI_rgb_alpha);
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std::array<stbi_uc, 4> color{255u, 0u, 255u, 255u};
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@ -556,9 +561,9 @@ 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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@ -622,50 +627,43 @@ 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 OBJ primitive to the ray tracing geometry used for the BLAS
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//
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nvvk::RaytracingBuilderKHR::Blas HelloVulkan::objectToVkGeometryKHR(const ObjModel& model)
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nvvk::RaytracingBuilderKHR::BlasInput HelloVulkan::objectToVkGeometryKHR(const ObjModel& model)
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{
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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(model.nbIndices / 3); // Nb triangles
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asCreate.setMaxVertexCount(model.nbVertices);
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asCreate.setAllowsTransforms(VK_FALSE); // No adding transformation matrices
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vk::DeviceAddress vertexAddress = m_device.getBufferAddress({model.vertexBuffer.buffer});
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vk::DeviceAddress indexAddress = m_device.getBufferAddress({model.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(VertexObj));
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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(model.nbVertices);
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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); // Avoid double hits
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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(0);
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offset.setPrimitiveCount(asCreate.maxPrimitiveCount);
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offset.setPrimitiveCount(model.nbIndices / 3);
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offset.setPrimitiveOffset(0);
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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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@ -673,7 +671,7 @@ nvvk::RaytracingBuilderKHR::Blas HelloVulkan::objectToVkGeometryKHR(const ObjMod
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void HelloVulkan::createBottomLevelAS()
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{
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// BLAS - Storing each primitive in a geometry
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std::vector<nvvk::RaytracingBuilderKHR::Blas> allBlas;
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std::vector<nvvk::RaytracingBuilderKHR::BlasInput> allBlas;
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allBlas.reserve(m_objModel.size());
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for(const auto& obj : m_objModel)
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{
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@ -759,16 +757,15 @@ void HelloVulkan::createRtPipeline()
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vk::ShaderModule raygenSM =
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nvvk::createShaderModule(m_device, //
|
||||
nvh::loadFile("shaders/raytrace.rgen.spv", true, paths));
|
||||
nvh::loadFile("shaders/raytrace.rgen.spv", true, paths, true));
|
||||
vk::ShaderModule missSM =
|
||||
nvvk::createShaderModule(m_device, //
|
||||
nvh::loadFile("shaders/raytrace.rmiss.spv", true, paths));
|
||||
nvh::loadFile("shaders/raytrace.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;
|
||||
|
|
@ -796,10 +793,10 @@ void HelloVulkan::createRtPipeline()
|
|||
// Payload 0
|
||||
vk::ShaderModule chitSM =
|
||||
nvvk::createShaderModule(m_device, //
|
||||
nvh::loadFile("shaders/raytrace.rchit.spv", true, paths));
|
||||
nvh::loadFile("shaders/raytrace.rchit.spv", true, paths, true));
|
||||
vk::ShaderModule ahitSM =
|
||||
nvvk::createShaderModule(m_device, //
|
||||
nvh::loadFile("shaders/raytrace.rahit.spv", true, paths));
|
||||
nvh::loadFile("shaders/raytrace.rahit.spv", true, paths, true));
|
||||
vk::RayTracingShaderGroupCreateInfoKHR hg{vk::RayTracingShaderGroupTypeKHR::eTrianglesHitGroup,
|
||||
VK_SHADER_UNUSED_KHR, VK_SHADER_UNUSED_KHR,
|
||||
VK_SHADER_UNUSED_KHR, VK_SHADER_UNUSED_KHR};
|
||||
|
|
@ -812,7 +809,7 @@ void HelloVulkan::createRtPipeline()
|
|||
// Payload 1
|
||||
vk::ShaderModule ahit1SM =
|
||||
nvvk::createShaderModule(m_device, //
|
||||
nvh::loadFile("shaders/raytrace_1.rahit.spv", true, paths));
|
||||
nvh::loadFile("shaders/raytrace_1.rahit.spv", true, paths, true));
|
||||
hg.setClosestHitShader(VK_SHADER_UNUSED_KHR); // Not used by shadow (skipped)
|
||||
stages.push_back({{}, vk::ShaderStageFlagBits::eAnyHitKHR, ahit1SM, "main"});
|
||||
hg.setAnyHitShader(static_cast<uint32_t>(stages.size() - 1));
|
||||
|
|
@ -843,9 +840,9 @@ 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 = m_device.createRayTracingPipelineKHR({}, rayPipelineInfo).value;
|
||||
m_rtPipeline = m_device.createRayTracingPipelineKHR({}, {}, rayPipelineInfo).value;
|
||||
|
||||
m_device.destroy(raygenSM);
|
||||
m_device.destroy(missSM);
|
||||
|
|
@ -866,18 +863,23 @@ 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());
|
||||
assert(result == vk::Result::eSuccess);
|
||||
|
||||
// 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
|
||||
|
|
@ -886,7 +888,7 @@ 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);
|
||||
|
||||
|
|
@ -919,24 +921,23 @@ 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
|
||||
vk::DeviceSize sbtSize = progSize * (vk::DeviceSize)m_rtShaderGroups.size();
|
||||
// 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});
|
||||
|
||||
// m_sbtBuffer holds all the shader handles: raygen, n-miss, hit...
|
||||
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); //
|
||||
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
|
||||
|
||||
cmdBuf.traceRaysKHR(&strideAddresses[0], &strideAddresses[1], &strideAddresses[2],
|
||||
&strideAddresses[3], //
|
||||
m_size.width, m_size.height,
|
||||
1); //
|
||||
|
||||
|
||||
m_debug.endLabel(cmdBuf);
|
||||
|
|
@ -949,12 +950,16 @@ 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++;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -132,19 +132,19 @@ public:
|
|||
vk::Format m_offscreenDepthFormat{vk::Format::eD32Sfloat};
|
||||
|
||||
// #VKRay
|
||||
void initRayTracing();
|
||||
nvvk::RaytracingBuilderKHR::Blas objectToVkGeometryKHR(const ObjModel& model);
|
||||
void createBottomLevelAS();
|
||||
void createTopLevelAS();
|
||||
void createRtDescriptorSet();
|
||||
void updateRtDescriptorSet();
|
||||
void createRtPipeline();
|
||||
void createRtShaderBindingTable();
|
||||
void initRayTracing();
|
||||
nvvk::RaytracingBuilderKHR::BlasInput objectToVkGeometryKHR(const ObjModel& model);
|
||||
void createBottomLevelAS();
|
||||
void createTopLevelAS();
|
||||
void createRtDescriptorSet();
|
||||
void updateRtDescriptorSet();
|
||||
void createRtPipeline();
|
||||
void createRtShaderBindingTable();
|
||||
void raytrace(const vk::CommandBuffer& cmdBuf, const nvmath::vec4f& clearColor);
|
||||
void resetFrame();
|
||||
void updateFrame();
|
||||
|
||||
vk::PhysicalDeviceRayTracingPropertiesKHR m_rtProperties;
|
||||
vk::PhysicalDeviceRayTracingPipelinePropertiesKHR m_rtProperties;
|
||||
nvvk::RaytracingBuilderKHR m_rtBuilder;
|
||||
nvvk::DescriptorSetBindings m_rtDescSetLayoutBind;
|
||||
vk::DescriptorPool m_rtDescPool;
|
||||
|
|
|
|||
|
|
@ -36,6 +36,7 @@
|
|||
#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);
|
||||
}
|
||||
|
||||
//////////////////////////////////////////////////////////////////////////
|
||||
|
|
@ -115,19 +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() + "..",
|
||||
NVPSystem::exePath() + std::string(PROJECT_NAME),
|
||||
};
|
||||
|
||||
// Enabling the extension feature
|
||||
vk::PhysicalDeviceRayTracingFeaturesKHR raytracingFeature;
|
||||
|
||||
// Requesting Vulkan extensions and layers
|
||||
nvvk::ContextCreateInfo contextInfo(true);
|
||||
contextInfo.setVersion(1, 2);
|
||||
contextInfo.addInstanceLayer("VK_LAYER_LUNARG_monitor", true);
|
||||
contextInfo.addInstanceExtension(VK_EXT_DEBUG_UTILS_EXTENSION_NAME, true);
|
||||
contextInfo.addInstanceExtension(VK_KHR_SURFACE_EXTENSION_NAME);
|
||||
#ifdef WIN32
|
||||
contextInfo.addInstanceExtension(VK_KHR_WIN32_SURFACE_EXTENSION_NAME);
|
||||
|
|
@ -141,8 +136,15 @@ int main(int argc, char** argv)
|
|||
contextInfo.addDeviceExtension(VK_KHR_GET_MEMORY_REQUIREMENTS_2_EXTENSION_NAME);
|
||||
contextInfo.addDeviceExtension(VK_EXT_DESCRIPTOR_INDEXING_EXTENSION_NAME);
|
||||
contextInfo.addDeviceExtension(VK_EXT_SCALAR_BLOCK_LAYOUT_EXTENSION_NAME);
|
||||
|
||||
// #VKRay: Activate the ray tracing extension
|
||||
contextInfo.addDeviceExtension(VK_KHR_RAY_TRACING_EXTENSION_NAME, false, &raytracingFeature);
|
||||
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);
|
||||
|
||||
contextInfo.addDeviceExtension(VK_KHR_MAINTENANCE3_EXTENSION_NAME);
|
||||
contextInfo.addDeviceExtension(VK_KHR_PIPELINE_LIBRARY_EXTENSION_NAME);
|
||||
contextInfo.addDeviceExtension(VK_KHR_DEFERRED_HOST_OPERATIONS_EXTENSION_NAME);
|
||||
|
|
@ -166,7 +168,7 @@ 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();
|
||||
|
|
@ -175,11 +177,11 @@ int main(int argc, char** argv)
|
|||
helloVk.initGUI(0); // Using sub-pass 0
|
||||
|
||||
// Creation of the example
|
||||
helloVk.loadModel(nvh::findFile("media/scenes/wuson.obj", defaultSearchPaths));
|
||||
helloVk.loadModel(nvh::findFile("media/scenes/sphere.obj", defaultSearchPaths),
|
||||
helloVk.loadModel(nvh::findFile("media/scenes/wuson.obj", defaultSearchPaths, true));
|
||||
helloVk.loadModel(nvh::findFile("media/scenes/sphere.obj", defaultSearchPaths, true),
|
||||
nvmath::scale_mat4(nvmath::vec3f(1.5f))
|
||||
* nvmath::translation_mat4(nvmath::vec3f(0.0f, 1.0f, 0.0f)));
|
||||
helloVk.loadModel(nvh::findFile("media/scenes/plane.obj", defaultSearchPaths));
|
||||
helloVk.loadModel(nvh::findFile("media/scenes/plane.obj", defaultSearchPaths, true));
|
||||
|
||||
|
||||
helloVk.createOffscreenRender();
|
||||
|
|
@ -224,15 +226,17 @@ 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
|
||||
|
|
@ -285,6 +289,7 @@ int main(int argc, char** argv)
|
|||
// Rendering tonemapper
|
||||
helloVk.drawPost(cmdBuff);
|
||||
// Rendering UI
|
||||
ImGui::Render();
|
||||
ImGui::RenderDrawDataVK(cmdBuff, ImGui::GetDrawData());
|
||||
cmdBuff.endRenderPass();
|
||||
}
|
||||
|
|
|
|||
|
|
@ -35,7 +35,7 @@ void main()
|
|||
return;
|
||||
|
||||
if(mat.dissolve == 0.0)
|
||||
ignoreIntersectionEXT();
|
||||
ignoreIntersectionEXT;
|
||||
else if(rnd(prd.seed) > mat.dissolve)
|
||||
ignoreIntersectionEXT();
|
||||
ignoreIntersectionEXT;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -39,7 +39,7 @@ void main()
|
|||
return;
|
||||
|
||||
if(mat.dissolve == 0.0)
|
||||
ignoreIntersectionEXT();
|
||||
ignoreIntersectionEXT;
|
||||
else if(rnd(prd.seed) > mat.dissolve)
|
||||
ignoreIntersectionEXT();
|
||||
ignoreIntersectionEXT;
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue