macOS下使用Clion写OpenGL
2019-03-07 本文已影响0人
CharleyChai
工具环境
- macOS Mojave
- Clion
配置过程
1. 下载glew/glfw
brew install glew
brew install glfw
2. 配置Clion的CMakeLists.txt
我的配置为：
cmake_minimum_required(VERSION 3.9)
project(test)
set(CMAKE_CXX_STANDARD 11)
# 添加头文件
set(GLEW_H /usr/local/Cellar/glew/2.1.0/include/GL)
set(GLFW_H /usr/local/Cellar/glfw/3.2.1/include/GLFW)
include_directories(${GLEW_H} ${GLFW_H})
# 添加目标链接
set(GLEW_LINK /usr/local/Cellar/glew/2.1.0/lib/libGLEW.2.1.dylib)
set(GLFW_LINK /usr/local/Cellar/glfw/3.2.1/lib/libglfw.3.dylib)
link_libraries(${OPENGL} ${GLEW_LINK} ${GLFW_LINK})
# 执行编译命令
set(SOURCE_FILES main.cpp)
add_executable(test ${SOURCE_FILES})
if (APPLE)
target_link_libraries(test "-framework OpenGL")
target_link_libraries(test "-framework GLUT")
endif()
注意，其中的test是我的项目名，你需要改成自己的。
在配置完成后，我们加载cmake之后，可以看到在External Libraties/Header Search Paths目录下有了GL和GLFW两个新目录。
项目结构
3. 测试
测试代码为
#include <iostream>
#include <glew.h>
#include <glfw3.h>
using namespace std;
void key_callback(GLFWwindow* window, int key, int scancode, int action, int mode)
{
//如果按下ESC，把windowShouldClose设置为True，外面的循环会关闭应用
if(key==GLFW_KEY_ESCAPE && action == GLFW_PRESS)
glfwSetWindowShouldClose(window, GL_TRUE);
std::cout<<"ESC"<<mode;
}
int main()
{
if(!glfwInit())
return -1;
//创建窗口以及上下文
GLFWwindow* window = glfwCreateWindow(640, 480, "hello world", NULL, NULL);
if(!window)
{
//创建失败会返回NULL
glfwTerminate();
}
glfwMakeContextCurrent(window);
glfwSetKeyCallback(window, key_callback); //注册回调函数
while(!glfwWindowShouldClose(window))
{
glfwPollEvents();
glClearColor(0.2, 0.3, 0.3, 1);
glClear(GL_COLOR_BUFFER_BIT);
glBegin(GL_TRIANGLES);
glColor3f(1, 0, 0); //Red
glVertex3f(0, 1, 1);
glColor3f(0, 1, 0); //Green
glVertex3f(-1, -1, 0);
glColor3f(0, 0, 1); //Blue
glVertex3f(1, -1, 0);
//结束一个画图步骤
glEnd();
glBegin(GL_POLYGON);
//再画个梯形，需要注意笔顺
glColor3f(0.5, 0.5, 0.5); //Grey
glVertex2d(0.5, 0.5);
glVertex2d(1, 1);
glVertex2d(1, 0);
glVertex2d(0.5, 0);
glEnd();
/******交换缓冲区，更新window上的内容******/
glfwSwapBuffers(window);
}
glfwTerminate();
return 0;
}
结果为：
测试结果
