120 lines
3.6 KiB
CMake
120 lines
3.6 KiB
CMake
# 版本要求
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cmake_minimum_required(VERSION 3.31)
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# 项目名称和语言
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project(opengl_homework LANGUAGES CXX)
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# C++ 标准
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set(CMAKE_CXX_STANDARD 11)
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set(CMAKE_CXX_STANDARD_REQUIRED True)
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# 自动运行 MOC, UIC, RCC (如果使用 Qt，这里不需要)
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#set(CMAKE_AUTOMOC ON)
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#set(CMAKE_AUTOUIC ON)
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#set(CMAKE_AUTORCC ON)
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# 包含目录
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include_directories(include)
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# GLEW: 作为静态库链接或动态库
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# 查找GLEW
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find_package(GLEW REQUIRED)
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if (GLEW_FOUND)
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include_directories(${GLEW_INCLUDE_DIRS})
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message(STATUS "Found GLEW: ${GLEW_LIBRARIES}")
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else ()
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message(FATAL_ERROR "GLEW not found")
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endif ()
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# 查找OpenGL
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find_package(OpenGL REQUIRED)
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if (OPENGL_FOUND)
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include_directories(${OPENGL_INCLUDE_DIR})
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message(STATUS "Found OpenGL: ${OPENGL_gl_LIBRARY}")
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else ()
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message(FATAL_ERROR "OpenGL not found")
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endif ()
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# 查找GLUT
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find_package(GLUT REQUIRED)
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if (GLUT_FOUND)
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include_directories(${GLUT_INCLUDE_DIR})
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message(STATUS "Found GLUT: ${GLUT_glut_LIBRARY}")
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else ()
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message(FATAL_ERROR "GLUT not found")
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endif ()
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# GLM (OpenGL Mathematics Library)
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# 尝试查找系统安装的GLM
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find_package(glm QUIET)
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if (NOT glm_FOUND)
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message(STATUS "glm not found. Fetching from source...")
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include(FetchContent)
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FetchContent_Declare(
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glm
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GIT_REPOSITORY https://github.com/g-truc/glm.git
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GIT_TAG 0.9.9.8 # 你可以选择一个具体的tag或者分支
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)
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FetchContent_MakeAvailable(glm)
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# 对于FetchContent下载的glm，其include目录通常是 ${glm_SOURCE_DIR}
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# 对于一些版本的CMake/glm，可能是 ${glm_SOURCE_DIR}/glm
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# 为了保险起见，可以都添加，或者根据实际下载的结构调整
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include_directories(${glm_SOURCE_DIR})
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message(STATUS "Fetched glm and added include directory: ${glm_SOURCE_DIR}")
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else ()
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message(STATUS "Found system-installed glm: ${glm_INCLUDE_DIR}")
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include_directories(${glm_INCLUDE_DIR})
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endif ()
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# 创建 shaders 目录的引用，方便在代码中加载 (可选)
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# set(SHADER_DIR ${CMAKE_CURRENT_SOURCE_DIR}/shaders)
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# 添加可执行文件
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add_executable(OpenGLProject
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main.cpp
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shader_utils.cpp
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)
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# 链接库
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target_link_libraries(OpenGLProject
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PRIVATE
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${OPENGL_LIBRARIES}
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${GLEW_LIBRARIES}
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${GLUT_glut_LIBRARY}
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)
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# 如果GLEW是作为静态库链接的，可能需要定义GLEW_STATIC
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# target_compile_definitions(OpenGLProject PRIVATE GLEW_STATIC)
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# 为了确保着色器文件能被程序找到，可以将它们复制到构建目录
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# 或者在代码中指定相对或绝对路径
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# 这里我们假设着色器文件和可执行文件在同一目录下运行，或者代码中处理路径
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# 如果着色器在 "shaders" 子目录中:
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set(SHADER_FILES
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shaders/phong.vert
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shaders/phong.frag
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shaders/axes.vert
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shaders/axes.frag
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)
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# 将着色器文件复制到可执行文件旁边
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foreach (SHADER_FILE ${SHADER_FILES})
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add_custom_command(
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TARGET OpenGLProject POST_BUILD
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COMMAND ${CMAKE_COMMAND} -E make_directory $<TARGET_FILE_DIR:OpenGLProject>/shaders
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COMMAND ${CMAKE_COMMAND} -E copy_if_different
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${CMAKE_CURRENT_SOURCE_DIR}/${SHADER_FILE}
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$<TARGET_FILE_DIR:OpenGLProject>/shaders/
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COMMENT "Copying shader ${SHADER_FILE} to build directory"
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)
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endforeach ()
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# 创建目标 shaders 目录
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add_custom_command(
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TARGET OpenGLProject POST_BUILD
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COMMAND ${CMAKE_COMMAND} -E make_directory $<TARGET_FILE_DIR:OpenGLProject>/shaders
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COMMENT "Creating shaders directory in build output"
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)
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