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Code Issues 156 Wiki Activity

Add NVIDIA DLSS to the Vulkan renderer (gfx.antialiasing dlss/dlaa) and gfx.buffer.percent

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Hirek
2026-10-25 19:35:33 +01:00
parent 71a6628a4a
commit 1841e6d7b0
27 changed files with 1487 additions and 56 deletions
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60
CMakeLists.txt
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@@ -72,6 +72,7 @@ endif()
option(WITH_OPENGL_MODERN "Compile with OpenGL modern renderer" ON)
option(WITH_VULKAN "Compile with the Vulkan 1.4 renderer (gfxrenderer vulkan); needs the submodules ref/volk and ref/Vulkan-Headers" ON)
option(WITH_DLSS "Compile the Vulkan renderer with NVIDIA DLSS (gfx.antialiasing dlss); needs the DLSS SDK in DLSS_SDK_ROOT, cmake -P tools/fetch_dlss_sdk.cmake" ON)
option(WITH_PYTHON "Python 3.14 embedded scripting" ON)
option(WITH_UART "Compile with libserialport" ON)
option(WITH_LUA "Compile with lua scripting support" ON)
@@ -463,9 +464,54 @@ if (WITH_VULKAN)
"rendering/vulkan14/vulkan14debug.cpp"
"rendering/vulkan14/vulkan14commands.cpp"
"rendering/vulkan14/vulkan14raytracing.cpp"
"rendering/vulkan14/vulkan14dlss.cpp"
"ref/volk/volk.c")
set(DEFINITIONS ${DEFINITIONS} "WITH_VULKAN")
# nvidia dlss of the vulkan renderer, from the dlss sdk (github.com/NVIDIA/DLSS) outside the repository: the headers and the
# static library of ngx to build with, the dlss library next to the program to run with (rendering/vulkan14/vulkan14dlss.h)
if (WITH_DLSS)
set(DLSS_SDK_ROOT "${CMAKE_CURRENT_SOURCE_DIR}/ref/DLSS" CACHE PATH "The NVIDIA DLSS SDK, with include/ and lib/ (cmake -P tools/fetch_dlss_sdk.cmake)")
if (NOT EXISTS "${DLSS_SDK_ROOT}/include/nvsdk_ngx_helpers_vk.h")
message(FATAL_ERROR "WITH_DLSS=ON needs the DLSS SDK in DLSS_SDK_ROOT (${DLSS_SDK_ROOT}): cmake -P tools/fetch_dlss_sdk.cmake")
endif()
if (CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64|arm64|ARM64)$")
set(DLSS_ARCH "aarch64")
else()
set(DLSS_ARCH "x86_64")
endif()
if (WIN32)
# the variants of the dynamic c runtime (/MD, /MDd in debug)
# the static libraries of x86_64 are in x64/ (the others of older visual studios beside it), those of arm64 at the top
if (DLSS_ARCH STREQUAL "x86_64")
set(DLSS_NGX_DIR "${DLSS_SDK_ROOT}/lib/Windows_x86_64/x64")
else()
set(DLSS_NGX_DIR "${DLSS_SDK_ROOT}/lib/Windows_${DLSS_ARCH}")
endif()
set(DLSS_NGX_LIBRARY "$<IF:$<CONFIG:Debug>,${DLSS_NGX_DIR}/nvsdk_ngx_d_dbg.lib,${DLSS_NGX_DIR}/nvsdk_ngx_d.lib>")
set(DLSS_NGX_CHECK "${DLSS_NGX_DIR}/nvsdk_ngx_d.lib")
set(DLSS_RUNTIME_PATTERN "nvngx_dlss.dll")
set(DLSS_RUNTIME_DIR "${DLSS_SDK_ROOT}/lib/Windows_${DLSS_ARCH}")
elseif (UNIX AND NOT APPLE)
set(DLSS_NGX_LIBRARY "${DLSS_SDK_ROOT}/lib/Linux_${DLSS_ARCH}/libnvsdk_ngx.a")
set(DLSS_NGX_CHECK "${DLSS_NGX_LIBRARY}")
set(DLSS_RUNTIME_PATTERN "libnvidia-ngx-dlss.so.*")
set(DLSS_RUNTIME_DIR "${DLSS_SDK_ROOT}/lib/Linux_${DLSS_ARCH}")
else()
message(FATAL_ERROR "WITH_DLSS=ON: the DLSS SDK has no libraries for this platform")
endif()
if (NOT EXISTS "${DLSS_NGX_CHECK}")
message(FATAL_ERROR "WITH_DLSS=ON: ${DLSS_NGX_CHECK} isn't in the DLSS SDK, fetch the libraries of this platform: cmake -P tools/fetch_dlss_sdk.cmake")
endif()
file(GLOB DLSS_RUNTIME_RELEASE "${DLSS_RUNTIME_DIR}/rel/${DLSS_RUNTIME_PATTERN}")
file(GLOB DLSS_RUNTIME_DEVELOPMENT "${DLSS_RUNTIME_DIR}/dev/${DLSS_RUNTIME_PATTERN}")
if (NOT DLSS_RUNTIME_RELEASE)
message(WARNING "WITH_DLSS=ON: no ${DLSS_RUNTIME_PATTERN} in ${DLSS_RUNTIME_DIR}/rel, it has to be put next to the program by hand")
endif()
# the sdk is seen by vulkan14dlss.cpp only; the rest of the renderer asks vk14::dlss::compiled()
set_source_files_properties("rendering/vulkan14/vulkan14dlss.cpp" PROPERTIES COMPILE_DEFINITIONS "WITH_DLSS" SKIP_PRECOMPILE_HEADERS ON)
endif()
# glslang compiles the shaders of shaders/vk14 when the program runs (no spirv-tools, no hlsl, no programs of its own)
set(GLSLANG_TESTS OFF CACHE BOOL "" FORCE)
set(GLSLANG_ENABLE_INSTALL OFF CACHE BOOL "" FORCE)
@@ -606,6 +652,20 @@ if (WITH_VULKAN)
# the vulkan headers are seen by the files of rendering/vulkan14 only, they include them
target_include_directories(${PROJECT_NAME} PRIVATE "${VULKAN_HEADERS_DIR}" "${VOLK_DIR}" "${VMA_DIR}")
target_link_libraries(${PROJECT_NAME} ${CMAKE_DL_LIBS} glslang glslang-default-resource-limits)
if (WITH_DLSS)
target_include_directories(${PROJECT_NAME} PRIVATE "${DLSS_SDK_ROOT}/include")
target_link_libraries(${PROJECT_NAME} "${DLSS_NGX_LIBRARY}" ${CMAKE_DL_LIBS})
# the dlss library next to the program, the development one (gfx.dlss.developer) in ngx_dev/
if (DLSS_RUNTIME_RELEASE)
add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy_if_different ${DLSS_RUNTIME_RELEASE} "$<TARGET_FILE_DIR:${PROJECT_NAME}>")
endif()
if (DLSS_RUNTIME_DEVELOPMENT)
add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
COMMAND ${CMAKE_COMMAND} -E make_directory "$<TARGET_FILE_DIR:${PROJECT_NAME}>/ngx_dev"
COMMAND ${CMAKE_COMMAND} -E copy_if_different ${DLSS_RUNTIME_DEVELOPMENT} "$<TARGET_FILE_DIR:${PROJECT_NAME}>/ngx_dev")
endif()
endif()
endif()
target_compile_definitions(eu07_settings INTERFACE ${DEFINITIONS})