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ϱßÊÇÒ»¸ö¹âÕÕµÄOpenGLʾÀý³ÌÐò£¬ÔËÐÐÓдíÎ󣬰ѳÌÐòÀïÍêȫûÓÐÓõ½µÄÈ«¾Ö±äÁ¿¡°GLfloat light_pos[] = {1.0, 2.0, 3.0, 0.0};¡±Ò»ÐÐɾ³ýÔËÐоÍÕý³£ÁË¡£ÕâÊÇΪʲô£¿Ã÷Ã÷Õâ¸öÈ«¾Ö±äÁ¿²¢Ã»ÓÐÓõ½£¬µ«ÊÇÉèÖÃÁËËü³ÌÐò¾Í»á³ö´í£¬ºÃÆæ¹Ö¡£ #include GLfloat vertices[][3] = {{-1.0,-1.0,-1.0},{1.0,-1.0,-1.0}, {1.0,1.0,-1.0}, {-1.0,1.0,-1.0}, {-1.0,-1.0,1.0}, {1.0,-1.0,1.0}, {1.0,1.0,1.0}, {-1.0,1.0,1.0}}; GLfloat colors[][4] = {{1.0,0.0,0.0,0.5}, {0.0,1.0,1.0,0.5}, {1.0,1.0,0.0,0.5}, {0.0,1.0,0.0,0.5}, {0.0,0.0,1.0,0.5}, {1.0,0.0,1.0,0.5}}; GLfloat light_pos[] = {1.0, 2.0, 3.0, 0.0}; void polygon(int a, int b, int c , int d) { glColor4fv(colors[a]); if(colors[a][4] != 1.0) glDepthMask(GL_TRUE); else glDepthMask(GL_FALSE); glBegin(GL_POLYGON); glVertex3fv(vertices[a]); glVertex3fv(vertices); glVertex3fv(vertices[c]); glVertex3fv(vertices[d]); glEnd(); } void cube() { polygon(0,3,2,1); polygon(2,3,7,6); polygon(3,0,4,7); polygon(1,2,6,5); polygon(4,5,6,7); polygon(5,4,0,1); } static GLfloat theta[] = {0.0,0.0,0.0}; static GLint axis = 2; void display(void) { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glLoadIdentity(); glRotatef(theta[0], 1.0, 0.0, 0.0); glRotatef(theta[1], 0.0, 1.0, 0.0); glRotatef(theta[2], 0.0, 0.0, 1.0); cube(); glutSwapBuffers(); } void spinCube() { theta[axis] += 2.0; if( theta[axis] > 360.0 ) theta[axis] -= 360.0; glutPostRedisplay(); } void mouse(int btn, int state, int x, int y) { if(btn==GLUT_LEFT_BUTTON && state == GLUT_DOWN) axis = 0; if(btn==GLUT_MIDDLE_BUTTON && state == GLUT_DOWN) axis = 1; if(btn==GLUT_RIGHT_BUTTON && state == GLUT_DOWN) axis = 2; } void myReshape(int w, int h) { glViewport(0, 0, w, h); glMatrixMode(GL_PROJECTION); glLoadIdentity(); if (w <= h) glOrtho(-2.0, 2.0, -2.0 * (GLfloat) h / (GLfloat) w, 2.0 * (GLfloat) h / (GLfloat) w, -10.0, 10.0); else glOrtho(-2.0 * (GLfloat) w / (GLfloat) h, 2.0 * (GLfloat) w / (GLfloat) h, -2.0, 2.0, -10.0, 10.0); glMatrixMode(GL_MODELVIEW); } void main(int argc, char **argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH); glutInitWindowSize(500, 500); glutCreateWindow("colorcube" ;glutReshapeFunc(myReshape); glutDisplayFunc(display); glutIdleFunc(spinCube); glutMouseFunc(mouse); glEnable(GL_DEPTH_TEST); /* Enable hidden--surface--removal */ glEnable(GL_BLEND); glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); glutMainLoop(); } |
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sukiyq
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7Â¥2012-09-11 13:09:37
conanwj
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2Â¥2012-09-10 20:16:48
sukiyq
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- Ó¦Öú: 25 (СѧÉú)
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3Â¥2012-09-10 22:12:04
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4Â¥2012-09-11 09:03:36
conanwj
°æÖ÷ (ÖøÃûдÊÖ)
- ÐÅÏ¢EPI: 1
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- ÔÚÏß: 313.3Сʱ
- ³æºÅ: 706359
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sukiyq: ½ð±Ò+3, ¡ïÓаïÖú 2012-09-23 09:10:56
sukiyq: ½ð±Ò+3, ¡ïÓаïÖú 2012-09-23 09:10:56
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5Â¥2012-09-11 09:06:43
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гæ (ÕýʽдÊÖ)
- Ó¦Öú: 6 (Ó×¶ùÔ°)
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6Â¥2012-09-11 09:44:47
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8Â¥2012-09-11 13:20:49
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- ³æºÅ: 1397425
- ×¢²á: 2011-09-10
- רҵ: ģʽʶ±ð

9Â¥2012-09-11 13:23:47













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