求一个C语言Opengl代码

// Bounce.c

/迅毁/ Demonstrates a simple animated rectangle program with GLUT

// OpenGL SuperBible, 2nd Edition

// Richard S. Wright Jr.

#include"stdafx.h"

#include <windows.h>

#include <gl/glut.h>

// Initial square position and size

GLfloat x1 = 100.0f

GLfloat y1 = 150.0f

GLsizei rsize = 50

// Step size in x and y directions

// (number of pixels to move each time)

GLfloat xstep = 1.0f

GLfloat ystep = 1.0f

// Keep track of windows changing width and height

GLfloat windowWidth

GLfloat windowHeight

// Called to draw scene

void RenderScene(void)

{

// Clear the window with current clearing color

glClear(GL_COLOR_BUFFER_BIT)

// Set current drawing color to red

// R GB

glColor3f(1.0f, 0.0f, 0.0f)

// Draw a filled rectangle with current color

glRectf(x1, y1, x1+rsize, y1+rsize)

// Flush drawing commands

glutSwapBuffers()

}

// Called by GLUT library when idle (window not being

// resized or moved)

void TimerFunction(int value)

{

// Reverse direction when you reach left or right edge

if(x1 >windowWidth-rsize || x1 <0)

xstep = -xstep

// Reverse direction when you reach top or bottom edge

if(y1 >windowHeight-rsize || y1 <0)

ystep = -ystep

// Check bounds. This is incase the window is made

// smaller and the rectangle is outside the new

//碧袭 clipping volume

if(x1 >windowWidth-rsize)

x1 = windowWidth-rsize-1

if(y1 >windowHeight-rsize)

y1 = windowHeight-rsize-1

// Actually move the square

x1 += xstep

y1 += ystep

// Redraw the scene with new coordinates

glutPostRedisplay()

glutTimerFunc(33,TimerFunction, 1)

}

//悔昌兄 Setup the rendering state

void SetupRC(void)

{

// Set clear color to blue

glClearColor(0.0f, 0.0f, 1.0f, 1.0f)

}

// Called by GLUT library when the window has chanaged size

void ChangeSize(GLsizei w, GLsizei h)

{

// Prevent a divide by zero

if(h == 0)

h = 1

// Set Viewport to window dimensions

glViewport(0, 0, w, h)

// Reset coordinate system

glMatrixMode(GL_PROJECTION)

glLoadIdentity()

// Keep the square square, this time, save calculated

// width and height for later use

if (w <= h)

{

windowHeight = 250.0f*h/w

windowWidth = 250.0f

}

else

{

windowWidth = 250.0f*w/h

windowHeight = 250.0f

}

// Set the clipping volume

glOrtho(0.0f, windowWidth, 0.0f, windowHeight, 1.0f, -1.0f)

glMatrixMode(GL_MODELVIEW)

glLoadIdentity()

}

// Main program entry point

void main(void)

{

glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB)

glutCreateWindow("Bounce")

glutDisplayFunc(RenderScene)

glutReshapeFunc(ChangeSize)

glutTimerFunc(33, TimerFunction, 1)

SetupRC()

glutMainLoop()

}

//是正方形的，你改一下吧~

程序还是自己试着编，这样才会进步，加油哈！

OpenGL就是基于C语言的，只需要下载OpenGL的SDK库安装即可，在编写空戚源码时：

喊迹1、添郑亏并加头文件glut.h。

注意glut.h文件中已经包含gl.h,glu.h在实际编译中可以只加入头文件glut.h，很多相关的例子都是这样的，但是在mingwstudio上编译发现，在glut.h前还是需要加入glu.h, gl.h.如：

#include <gl/gl.h>

#include <gl/glu.h>

#include <gl/glut.h>

2、在工程中添加OpenGL的库，有关命令行加入，glu32 opengl32 glut32库就可以编译了。

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