这个OBJ FILE如何用OPENGL绘制

rootxue

OBJ FILE：Download
在这个文件中
v表示顶点数据
vc表示颜色数据
f表示索引数据
当我用glDrawElements在VC6中绘制，不知什么原因，总是不能正确绘制，
不知各位有什么好的绘制方法？

rootxue

我用的基本代码如下：

1. #include <math.h>
   
2. #include <stdlib.h>
   
3. #ifdef __APPLE__
   
4. #include <GLUT/glut.h>
   
5. #else
   
6. #include <GL/glut.h>
   
7. #endif
   
8. #include <windows.h>
   
9. #include <stdio.h>
   
10. #include <data.h>
    
11. #define false 0
    
12. #define true 1
    
13. int i;
    
14. void myReshape(int w, int h)
    
15. {
    
16. glViewport(0, 0, w, h);
    
17. glMatrixMode(GL_PROJECTION);
    
18. glLoadIdentity();
    
19. glOrtho(-0.5,0.5,-0.5,0.5,-0.5,0.5);
    
20. glMatrixMode(GL_MODELVIEW);
    
21. }
    
22. 
    
23. 
    
24. void colorcube(void)
    
25. {
    
26. static GLfloat position [] = {0.0,0.0,1.0,1.0};
    
27. static GLfloat color [] = {0.5,0.25,0.0,1.0};
    
28. glLightfv(GL_LIGHT0,GL_POSITION,position);
    
29. glEnable(GL_LIGHTING);
    
30. glEnable(GL_LIGHT0);
    
31. glPolygonMode(GL_FRONT_AND_BACK,GL_FILL);
    
32. glMaterialfv(GL_FRONT_AND_BACK,GL_AMBIENT_AND_DIFFUSE,color);
    
33. glDrawElements(GL_TRIANGLES ,3*NUMTRIANGLES,GL_UNSIGNED_BYTE,index);
    
34. }
    
35. void display(void)
    
36. {
    
37. glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
    
38. colorcube();
    
39. glutSwapBuffers();
    
40. }
    
41. 
    
42. 
    
43. void main(int argc, char **argv)
    
44. {
    
45. glutInit(&argc, argv);
    
46. glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
    
47. glutInitWindowSize(500, 500);
    
48. glutCreateWindow("Mesh Grid");
    
49. glutReshapeFunc(myReshape);
    
50. glutDisplayFunc(display);
    
51. 
    
52. glEnable(GL_DEPTH_TEST);
    
53. glEnableClientState(GL_VERTEX_ARRAY);
    
54. glEnableClientState(GL_INDEX_ARRAY);
    
55. glEnableClientState(GL_COLOR_ARRAY);
    
56. glVertexPointer(3,GL_FLOAT,0,vertex);
    
57. glIndexPointer(GL_FLOAT,0,index);
    
58. glColorPointer(3,GL_FLOAT,0,color);
    
59. glutMainLoop();
    
60. }
    
61. 
    
62. 
    
63. data of (vertex color index ) in the objfile

复制代码