ubuntu下搭建openGL环境
1. 建立基本编译环境
sudo apt-get install build-essential
2. 安装OpenGL Library
sudo apt-get install libgl1-mesa-dev
3. 安装OpenGL Utilities
sudo apt-get install libglu1-mesa-dev
4. 安装OpenGL Utility ToolKit
sudo apt-get install freeglut3-dev
对于不用IDE的学习者,这些就足够了,在编译时链接相应的库就行。如,对于一个文件simple.c,代码如下
/* * GLUT Shapes Demo * * This program is test harness for the sphere, cone * and torus shapes in GLUT. * * Spinning wireframe and smooth shaded shapes are * displayed until the ESC or q key is pressed. The * number of geometry stacks and slices can be adjusted * using the + and - keys. */ #ifdef __APPLE__ #include <GLUT/glut.h> #else #include <GL/glut.h> #endif #include <stdlib.h> static int slices = 16; static int stacks = 16; /* GLUT callback Handlers */ static void resize(int width, int height) { const float ar = (float) width / (float) height; glViewport(0, 0, width, height); glMatrixMode(GL_PROJECTION); glLoadIdentity(); glFrustum(-ar, ar, -1.0, 1.0, 2.0, 100.0); glMatrixMode(GL_MODELVIEW); glLoadIdentity() ; } static void display(void) { const double t = glutGet(GLUT_ELAPSED_TIME) / 1000.0; const double a = t*90.0; glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glColor3d(1,0,0); glPushMatrix(); glTranslated(-2.4,1.2,-6); glRotated(60,1,0,0); glRotated(a,0,0,1); glutSolidSphere(1,slices,stacks); glPopMatrix(); glPushMatrix(); glTranslated(0,1.2,-6); glRotated(60,1,0,0); glRotated(a,0,0,1); glutSolidCone(1,1,slices,stacks); glPopMatrix(); glPushMatrix(); glTranslated(2.4,1.2,-6); glRotated(60,1,0,0); glRotated(a,0,0,1); glutSolidTorus(0.2,0.8,slices,stacks); glPopMatrix(); glPushMatrix(); glTranslated(-2.4,-1.2,-6); glRotated(60,1,0,0); glRotated(a,0,0,1); glutWireSphere(1,slices,stacks); glPopMatrix(); glPushMatrix(); glTranslated(0,-1.2,-6); glRotated(60,1,0,0); glRotated(a,0,0,1); glutWireCone(1,1,slices,stacks); glPopMatrix(); glPushMatrix(); glTranslated(2.4,-1.2,-6); glRotated(60,1,0,0); glRotated(a,0,0,1); glutWireTorus(0.2,0.8,slices,stacks); glPopMatrix(); glutSwapBuffers(); } static void key(unsigned char key, int x, int y) { switch (key) { case 27 : case 'q': exit(0); break; case '+': slices++; stacks++; break; case '-': if (slices>3 && stacks>3) { slices--; stacks--; } break; } glutPostRedisplay(); } static void idle(void) { glutPostRedisplay(); } const GLfloat light_ambient[] = { 0.0f, 0.0f, 0.0f, 1.0f }; const GLfloat light_diffuse[] = { 1.0f, 1.0f, 1.0f, 1.0f }; const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f }; const GLfloat light_position[] = { 2.0f, 5.0f, 5.0f, 0.0f }; const GLfloat mat_ambient[] = { 0.7f, 0.7f, 0.7f, 1.0f }; const GLfloat mat_diffuse[] = { 0.8f, 0.8f, 0.8f, 1.0f }; const GLfloat mat_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f }; const GLfloat high_shininess[] = { 100.0f }; /* Program entry point */ int main(int argc, char *argv[]) { glutInit(&argc, argv); glutInitWindowSize(640,480); glutInitWindowPosition(10,10); glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH); glutCreateWindow("GLUT Shapes"); glutReshapeFunc(resize); glutDisplayFunc(display); glutKeyboardFunc(key); glutIdleFunc(idle); glClearColor(1,1,1,1); glEnable(GL_CULL_FACE); glCullFace(GL_BACK); glEnable(GL_DEPTH_TEST); glDepthFunc(GL_LESS); glEnable(GL_LIGHT0); glEnable(GL_NORMALIZE); glEnable(GL_COLOR_MATERIAL); glEnable(GL_LIGHTING); glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient); glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse); glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular); glLightfv(GL_LIGHT0, GL_POSITION, light_position); glMaterialfv(GL_FRONT, GL_AMBIENT, mat_ambient); glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse); glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular); glMaterialfv(GL_FRONT, GL_SHININESS, high_shininess); glutMainLoop(); return EXIT_SUCCESS; }
编译命令:gcc simple.c -o simple -lGL -lGLU -lglut
然后运行编译后的程序./simple,结果如下:
若采用Code::Blocks,需要添加链接库
打开Setting->Complier...->Linker Settings
将libGL.so,libGLU.so,libglut.so添加进去,建立工程需要建立console应用程序,否则找不到相应的库。