本文共 7988 字，大约阅读时间需要 26 分钟。

主要包含圆柱体（Cylinder）圆盘（Disk）球（Sphere） 圆锥（Cylinder）

  作法： 1.创建几何体对象 GLUquadricObj  *quadratic=gluNewQuadric(); 2.设置几何体属性 gluQuadricNormals（法线）gluQuadricTexture（纹理） gluQuadricOrientation（对齐方式）gluQuadricDrawStyle（绘画样式） 3.绘制二次几何体

gluQuadricNormals			设置法线
			GLU_FLAT			普通
			GLU_SMOOTH			平滑
			GLU_NONE
gluQuadricTexture			GL_TRUE|GL_FALSE			是否绑定纹理
gluQuadricOrientation			GLU_OUTSIDE|GLU_INSIDE			设置对其方式
gluQuadricDrawStyle			绘画样式
			GLU_POINT			以点方式绘制
			GLU_LINE			以线方式绘制
			GLU_FILL               100010 #define GLU_LINE                100011 #define GLU_FILL                100012 #define GLU_SILHOUETTE          100013			以填充方式绘制
			GLU_SILHOUETTE
gluCylinder			绘制圆柱体|圆锥
			参数2			圆柱体的底面半径
			参数3			圆柱体的顶面半径（圆锥半径为0.0）
			参数4			圆柱体的高度
			参数5			纬线（环绕Z轴有多少细分）
			参数6			经线（沿着Z轴有多少细分）。细分越多该对象就越细致。
gluDisk
			参数2			盘子的内圆半径，该参数可以为0，则表示在盘子中间没孔，内圆半径越大孔越大
			参数3			表示外圆半径，这个参数必须比内圆半径大
			参数4			组成该盘子的切片的数量，这个数量可以想象成披萨饼中的切片的数量。切片越多，外圆边缘就越平滑
			参数5			组成盘子的环的数量。环很像唱片上的轨迹，一环套一环。这些环从内圆半径细分到外圆半径。细分越多，速度越慢。
gluSphere			绘制球
			参数2			半径
			参数3			纬线
			参数4			经线
gluPartialDisk			参数2			绘制部分圆盘
			参数3			盘子的内圆半径，该参数可以为0，则表示在盘子中间没孔，内圆半径越大孔越大
			参数4			表示外圆半径，这个参数必须比内圆半径大
			参数5			组成该盘子的切片的数量，这个数量可以想象成披萨饼中的切片的数量。切片越多，外圆边缘就越平滑
			参数6			组成盘子的环的数量。环很像唱片上的轨迹，一环套一环。这些环从内圆半径细分到外圆半径。细分越多，速度越慢。
			参数7			起始角度
			参数8			旋转角度

#include "header.h"int		part1;			int		part2;			int		p1=0;				int		p2=1;		GLfloat	xrot;			GLfloat	yrot;				GLfloat xspeed;			GLfloat yspeed;			GLfloat	z=-5.0f;		GLUquadricObj *quadratic;	GLfloat LightAmbient[]=		{ 0.5f, 0.5f, 0.5f, 1.0f };GLfloat LightDiffuse[]=		{ 1.0f, 1.0f, 1.0f, 1.0f };GLfloat LightPosition[]=	{ 0.0f, 0.0f, 2.0f, 1.0f };GLuint	filter;				GLuint	texture[3];			GLuint  object=0;		AUX_RGBImageRec *LoadBMP(char *Filename)				{	FILE *File=NULL;										if (!Filename)										{		return NULL;										}	File=fopen(Filename,"r");								if (File)												{		fclose(File);											return auxDIBImageLoad(Filename);					}	return NULL;										}int LoadGLTextures()									{	int Status=FALSE;										AUX_RGBImageRec *TextureImage[1];						memset(TextureImage,0,sizeof(void *)*1);           	if (TextureImage[0]=LoadBMP("Data/Wall.bmp"))	{		Status=TRUE;											glGenTextures(3, &texture[0]);							// Create Nearest Filtered Texture		glBindTexture(GL_TEXTURE_2D, texture[0]);		glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);		glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);		glTexImage2D(GL_TEXTURE_2D, 0, 3, TextureImage[0]->sizeX, TextureImage[0]->sizeY, 0, GL_RGB, GL_UNSIGNED_BYTE, TextureImage[0]->data);		// Create Linear Filtered Texture		glBindTexture(GL_TEXTURE_2D, texture[1]);		glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);		glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);		glTexImage2D(GL_TEXTURE_2D, 0, 3, TextureImage[0]->sizeX, TextureImage[0]->sizeY, 0, GL_RGB, GL_UNSIGNED_BYTE, TextureImage[0]->data);		// Create MipMapped Texture		glBindTexture(GL_TEXTURE_2D, texture[2]);		glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);		glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR_MIPMAP_NEAREST);		gluBuild2DMipmaps(GL_TEXTURE_2D, 3, TextureImage[0]->sizeX, TextureImage[0]->sizeY, GL_RGB, GL_UNSIGNED_BYTE, TextureImage[0]->data);	}	if (TextureImage[0])									{		if (TextureImage[0]->data)							{			free(TextureImage[0]->data);						}		free(TextureImage[0]);								}	return Status;										}GLvoid ReSizeGLScene(GLsizei width, GLsizei height)		{	if (height==0)											{		height=1;											}	glViewport(0,0,width,height);							glMatrixMode(GL_PROJECTION);							glLoadIdentity();										// Calculate The Aspect Ratio Of The Window	gluPerspective(45.0f,(GLfloat)width/(GLfloat)height,0.1f,100.0f);	glMatrixMode(GL_MODELVIEW);								glLoadIdentity();									}int InitGL(void)										{	if (!LoadGLTextures())									{		return FALSE;										}	glEnable(GL_TEXTURE_2D);								glShadeModel(GL_SMOOTH);								glClearColor(0.0f, 0.0f, 0.0f, 0.5f);					glClearDepth(1.0f);										glEnable(GL_DEPTH_TEST);							glDepthFunc(GL_LEQUAL);									glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);		glLightfv(GL_LIGHT1, GL_AMBIENT, LightAmbient);			glLightfv(GL_LIGHT1, GL_DIFFUSE, LightDiffuse);			glLightfv(GL_LIGHT1, GL_POSITION,LightPosition);		glEnable(GL_LIGHT1);									quadratic=gluNewQuadric();								gluQuadricNormals(quadratic, GLU_SMOOTH);				gluQuadricTexture(quadratic, GL_TRUE);					return TRUE;										}void glDrawCube(){		glBegin(GL_QUADS);		// Front Face		glNormal3f( 0.0f, 0.0f, 1.0f);		glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f);		glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f);		glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f,  1.0f);		glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f,  1.0f);		// Back Face		glNormal3f( 0.0f, 0.0f,-1.0f);		glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);		glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);		glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);		glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);		// Top Face		glNormal3f( 0.0f, 1.0f, 0.0f);		glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);		glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f,  1.0f,  1.0f);		glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f,  1.0f,  1.0f);		glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);		// Bottom Face		glNormal3f( 0.0f,-1.0f, 0.0f);		glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, -1.0f);		glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, -1.0f);		glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f);		glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f);		// Right Face		glNormal3f( 1.0f, 0.0f, 0.0f);		glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);		glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);		glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f,  1.0f,  1.0f);		glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f);		// Left Face		glNormal3f(-1.0f, 0.0f, 0.0f);		glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);		glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f);		glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f,  1.0f,  1.0f);		glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);	glEnd();}void DrawGLScene(void)									{	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);		glLoadIdentity();										glTranslatef(0.0f,0.0f,z);	glRotatef(xrot,1.0f,0.0f,0.0f);	glRotatef(yrot,0.0f,1.0f,0.0f);	glBindTexture(GL_TEXTURE_2D, texture[filter]);	switch(object)	{	case 0:		glDrawCube();		break;	case 1:		glTranslatef(0.0f,0.0f,-1.5f);							gluCylinder(quadratic,1.0f,1.0f,3.0f,32,32);			break;	case 2:		gluDisk(quadratic,0.5f,1.5f,32,32);						break;	case 3:		gluSphere(quadratic,1.3f,32,32);					break;	case 4:		glTranslatef(0.0f,0.0f,-1.5f);							gluCylinder(quadratic,1.0f,0.0f,3.0f,32,32);			break;	case 5:		part1+=p1;		part2+=p2;		if(part1>359)											{			p1=0;			part1=0;			p2=1;			part2=0;		}		if(part2>359)										{			p1=1;			p2=0;		}		gluPartialDisk(quadratic,0.5f,1.5f,32,32,part1,part2-part1);			break;	};	xrot+=xspeed;	yrot+=yspeed;	glFlush();										}void rotate(){	glutPostRedisplay();}void keyboard(unsigned char key,int x,int y){	switch (key)	{	case 'L':		glEnable(GL_LIGHTING);		glutPostRedisplay();		break;	case 'l':		glDisable(GL_LIGHTING);		glutPostRedisplay();		break;	case ' ':		object++;		if(object>5)			object=0;		glutPostRedisplay();		break;	case 'F':		filter+=1;		if (filter>2)		{			filter=0;		}			glutPostRedisplay();		break;	case 'W':		yspeed+=0.01f;			glutIdleFunc(rotate);		break;	case 'S':		yspeed-=0.01f;			glutIdleFunc(rotate);		break;	case 'A':		xspeed+=0.01f;			glutIdleFunc(rotate);		break;	case 'D':		xspeed-=0.01f;			glutIdleFunc(rotate);		break;	case 'Z':		z-=0.01f;			glutIdleFunc(rotate);		break;	case 'X':		z+=0.01f;			glutIdleFunc(rotate);		break;	case 'R':		glutIdleFunc(NULL);		break;	}}int main(int argc,char **argv){	glutInit(&argc,argv);	glutInitDisplayMode(GLUT_SINGLE|GLUT_RGB|GLUT_DEPTH);	glutInitWindowSize(800,600);	glutInitWindowPosition(100,100);	glutCreateWindow("二次几何体");	InitGL();	glutDisplayFunc(DrawGLScene);	glutKeyboardFunc(keyboard);	glutReshapeFunc(ReSizeGLScene);	glutMainLoop();}

转载地址：http://nfumi.baihongyu.com/