CMakeLists.txt

cmake_minimum_required(VERSION 3.16 FATAL_ERROR)
project(pathtracer CUDA CXX)

set(CMAKE_CUDA_STANDARD 14)
set(CMAKE_CXX_FLAGS "-O3")


file(GLOB cpu_source_files "${CMAKE_SOURCE_DIR}/src/*.cpp")
file(GLOB gpu_source_files "${CMAKE_SOURCE_DIR}/src/*.cu")
enable_language(CUDA)
add_executable(pathtracer src/types.h src/kernels.h src/main.cpp)



set_target_properties(
        pathtracer 
        PROPERTIES
        CUDA_SEPARABLE_COMPILATION ON)

target_compile_options(pathtracer PRIVATE $<$<COMPILE_LANGUAGE:CUDA>:
                       --use_fast_math -O3 -arch=compute_50 -code=sm_50
                       -Xptxas=-O3
                       -Xcompiler=-fopenmp,-g,-O3
                       >)

# We want to use c++ inline with cuda, so set nvcc as primary compiler
set_source_files_properties(${cpu_source_files} PROPERTIES LANGUAGE CUDA)

add_subdirectory("./glfw")
include_directories("./glfw/include")
target_link_libraries(pathtracer glfw ${GLFW_LIBRARIES})
find_package(OpenGL REQUIRED)
target_include_directories(pathtracer PUBLIC ${OPENGL_INCLUDE_DIR})
target_link_libraries(pathtracer ${OPENGL_LIBRARIES})

include_directories("./chaiscript")


#find_package(glfw3 3.3.2 REQUIRED)
#target_link_libraries(pathtracer glfw)
# These variables have been set by the previous command

find_package(glm REQUIRED)
message(STATUS "GLM included at ${GLM_INCLUDE_DIR}")

find_package(OpenMP)
if(OpenMP_CXX_FOUND)
    target_link_libraries(pathtracer OpenMP::OpenMP_CXX)
endif()

#FIND_PACKAGE( OpenMP REQUIRED)
#if(OPENMP_FOUND)
#message("OPENMP FOUND")
#set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}")
#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
#set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${OpenMP_EXE_LINKER_FLAGS}")
#endif()