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标题: [OpenGL]ScreenShake Effects [打印本页]

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作者: Jerry小坏    时间: 2017-7-14 16:39
标题: [OpenGL]ScreenShake Effects

1. 
   
2. qglBindTexture(GL_TEXTURE_2D, pFBO->s_hBackBufferTex);
   
3. 
   
4. 
   
5. qglBegin(GL_QUADS);
   
6. qglTexCoord2f(gEngfuncs.pfnRandomFloat(0.0, 0.1),gEngfuncs.pfnRandomFloat(0.9, 1.0)); qglVertex3f(0,0,0);
   
7. qglTexCoord2f(gEngfuncs.pfnRandomFloat(0.9, 1.0),gEngfuncs.pfnRandomFloat(0.9, 1.0)); qglVertex3f(glwidth/2, 0,0);
   
8. qglTexCoord2f(gEngfuncs.pfnRandomFloat(0.9, 1.0),gEngfuncs.pfnRandomFloat(0.0, 0.1)); qglVertex3f(glwidth/2, glheight/2,0);
   
9. qglTexCoord2f(gEngfuncs.pfnRandomFloat(0.0, 0.1),gEngfuncs.pfnRandomFloat(0.0, 0.1)); qglVertex3f(0, glheight/2,0);
   
10. qglEnd();
    
11. 
    
12.                         
    
13. qglBegin(GL_QUADS);
    
14. qglTexCoord2f(gEngfuncs.pfnRandomFloat(0.0, 0.3),gEngfuncs.pfnRandomFloat(0.7, 1.0)); qglVertex3f(glwidth/2,0,0);
    
15. qglTexCoord2f(gEngfuncs.pfnRandomFloat(0.7, 1.0),gEngfuncs.pfnRandomFloat(0.7, 1.0)); qglVertex3f(glwidth, 0,0);
    
16. qglTexCoord2f(gEngfuncs.pfnRandomFloat(0.7, 1.0),gEngfuncs.pfnRandomFloat(0.0, 0.3)); qglVertex3f(glwidth, glheight/2,0);
    
17. qglTexCoord2f(gEngfuncs.pfnRandomFloat(0.0, 0.3),gEngfuncs.pfnRandomFloat(0.0, 0.3)); qglVertex3f(glwidth/2, glheight/2,0);
    
18. qglEnd();
    
19. 
    
20.                         
    
21. qglBegin(GL_QUADS);
    
22. qglTexCoord2f(gEngfuncs.pfnRandomFloat(0.0, 0.5),gEngfuncs.pfnRandomFloat(0.5, 1.0)); qglVertex3f(0,glheight/2,0);
    
23. qglTexCoord2f(gEngfuncs.pfnRandomFloat(0.5, 1.0),gEngfuncs.pfnRandomFloat(0.5, 1.0)); qglVertex3f(glwidth/2, glheight/2,0);
    
24. qglTexCoord2f(gEngfuncs.pfnRandomFloat(0.5, 1.0),gEngfuncs.pfnRandomFloat(0.0, 0.5)); qglVertex3f(glwidth/2, glheight,0);
    
25. qglTexCoord2f(gEngfuncs.pfnRandomFloat(0.0, 0.5),gEngfuncs.pfnRandomFloat(0.0, 0.5)); qglVertex3f(0, glheight,0);
    
26. qglEnd();
    
27. 
    
28.                         
    
29. qglBegin(GL_QUADS);
    
30. qglTexCoord2f(gEngfuncs.pfnRandomFloat(0.0, 0.7),gEngfuncs.pfnRandomFloat(0.3, 1.0)); qglVertex3f(glwidth/2,glheight/2,0);
    
31. qglTexCoord2f(gEngfuncs.pfnRandomFloat(0.3, 1.0),gEngfuncs.pfnRandomFloat(0.3, 1.0)); qglVertex3f(glwidth, glheight/2,0);
    
32. qglTexCoord2f(gEngfuncs.pfnRandomFloat(0.3, 1.0),gEngfuncs.pfnRandomFloat(0.0, 0.7)); qglVertex3f(glwidth, glheight,0);
    
33. qglTexCoord2f(gEngfuncs.pfnRandomFloat(0.0, 0.7),gEngfuncs.pfnRandomFloat(0.0, 0.7)); qglVertex3f(glwidth/2, glheight,0);
    
34. qglEnd();
    
35. 
    
36.         
    
37. qglBegin(GL_QUADS);
    
38. qglTexCoord2f(0,1); qglVertex3f(glwidth/2-100, glheight/2-100,0);
    
39. qglTexCoord2f(1,1); qglVertex3f(glwidth/2+100, glheight/2-100,0);
    
40. qglTexCoord2f(1,0); qglVertex3f(glwidth/2+100, glheight/2+100,0);
    
41. qglTexCoord2f(0,0); qglVertex3f(glwidth/2-100, glheight/2+100,0);
    
42. qglEnd();
    

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