CMakeLists.txt

cmake_minimum_required(VERSION 3.10)
project(raytracing)

set(PROJECT_NAME "raytracing")

set(PROJECT_DIR "${CMAKE_CURRENT_SOURCE_DIR}/src")
include_directories(${PROJECT_DIR})

# Tucano directories.
set(TUCANO_INCLUDE_DIRS "${PROJECT_SOURCE_DIR}/dependencies/tucano/")

if (WIN32)
    set(GLEW_INCLUDE_DIR "${PROJECT_SOURCE_DIR}/dependencies/glew/include/")
    set(GLEW_SHARED_LIBRARY_RELEASE "${PROJECT_SOURCE_DIR}/dependencies/glew/lib/win/x64/glew32.lib")

    set(GLFW_INCLUDE_DIR "${PROJECT_SOURCE_DIR}/dependencies/glfw/include")
    set(GLFW_LIBRARIES "${PROJECT_SOURCE_DIR}/dependencies/glfw/lib/win/x64/glfw3.lib")

    set(EIGEN3_INCLUDE_DIRS "${PROJECT_SOURCE_DIR}/dependencies/eigen/include/")
endif (WIN32)

# find the necessary libraries (GLEW, OPENGL, EIGEN, GLFW)
find_package(GLEW REQUIRED)
if (NOT GLEW_FOUND)
    message(SEND_ERROR "GLEW not found on your system.")
endif ()

find_package(OpenGL REQUIRED)
if (NOT OPENGL_FOUND)
    message(SEND_ERROR "OpenGL not found on your system.")
endif ()

if (UNIX)
    # Eigen 3 and glfw
    # pkg-config is used so we don't hard-code the location of eigen.
    find_package(PkgConfig)
    if (NOT PKG_CONFIG_FOUND)
        set(EIGEN3_INCLUDE_DIRS "$ENV{EIGEN3_INCLUDE_DIR}")
        if (NOT EIGEN3_INCLUDE_DIRS)
            message(SEND_ERROR "pkg-config not found on your system. Please point the environment variable EIGEN3_INCLUDE_DIR to the include directory of your Eigen3 installation.")
        endif ()
    else ()
        pkg_check_modules(EIGEN3 REQUIRED eigen3)
        pkg_check_modules(GLFW REQUIRED glfw3)
    endif ()
endif (UNIX)

# turn on DEBUG in TUCANO (comment to turn it off)
#add_definitions(-DTUCANODEBUG)
add_definitions(-D_USE_MATH_DEFINES)
add_definitions(-D_CRT_SECURE_NO_WARNINGS)

# set the directory with your files as SHADING_SOURCES
set(
        PROJECT_SOURCES
        ${PROJECT_DIR}/main.cpp
        ${PROJECT_DIR}/flyscene.cpp
        ${PROJECT_DIR}/boundingBox.h
        #${PROJECT_DIR}/raytracing.cpp
        src/defs.h)

# add all the source files for compilation (your files + tucano files)
add_executable(
        ${PROJECT_NAME}
        ${PROJECT_SOURCES}
)

# directories with include files
include_directories(
        ${EIGEN3_INCLUDE_DIRS}
        ${GLEW_INCLUDE_DIRS}
        ${OPENGL_INCLUDE_DIR}
        ${TUCANO_INCLUDE_DIRS}
)

if (WIN32)
    include_directories(${GLFW_INCLUDE_DIR})
endif ()

# link the program with external libraries (glew, glfw, opengl)
target_link_libraries(
        ${PROJECT_NAME}
        ${GLEW_LIBRARIES}
        ${GLFW_LIBRARIES}
        ${OPENGL_LIBRARIES}
)