Bounce-opengl.rar_bounce_open gl _opengl 动画_opengl平移_平移 opengl

#include <windows.h> #include <gl/glut.h> #include <GL/gl.h> #include <GL/glu.h> #include <GL/glaux.h> #define GLUT_DISABLE_ATEXIT_HACK GLfloat x1=100.0f; GLfloat y1=100.0f; GLsizei rsize=50; GLfloat xstep=1.0f; GLfloat ystep=1.0f; GLfloat windowWidth; GLfloat windowHeight; void RenderScene(void) { glClear(GL_COLOR_BUFFER_BIT); glColor3f(1.0f,0.0f,0.0f); glRectf(x1,y1,x1+rsize,y1+rsize); glRotatef(45,0,0,1); glScalef(1.0,0.5,1.0); glutSwapBuffers(); } void TimerFunction(int value) { if(x1>windowWidth-rsize || x1<0) xstep=-xstep; if(y1>windowWidth-rsize || y1<0) ystep=-ystep; if(x1>windowWidth-rsize) x1=windowWidth-rsize-1; if(y1>windowHeight-rsize) y1=windowHeight-rsize-1; x1+=xstep; y1+=ystep; glutPostRedisplay(); glutTimerFunc(922,TimerFunction,1); } void SetupRC(void) { glClearColor(0.0f,0.0f,1.0f,1.0f); } void ChangeSize(GLsizei w,GLsizei h) { if(h==0) h=1; glViewport(0,0,w,h); glMatrixMode(GL_PROJECTION); glLoadIdentity(); if(w<=h) { windowHeight=250.0f*h/w; windowWidth=250.0f; } else { windowHeight=250.0f*h/w; windowWidth=250.0f; } glOrtho(0.0f,windowWidth,0.0f,windowHeight,1.0f,-1.0f); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); } void main(void) { glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB); glutCreateWindow("Bounce"); glutDisplayFunc(RenderScene); glutReshapeFunc(ChangeSize); glutTimerFunc(922,TimerFunction,1); SetupRC(); glutMainLoop(); }