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SkyBox.cpp
资源名称：3dexplorerTest.rar　[点击查看]
上传用户：hkb425
上传日期：2007-06-16
资源大小：34191k
文件大小：4k
源码类别：

游戏引擎

开发平台：

Visual C++

SkyBox.cpp：源码内容
  1. // SkyBox.cpp: implementation of the CSkyBox class.
  2. //
  3. //////////////////////////////////////////////////////////////////////
  4. #include "stdafx.h"
  5. #include "texmanager.h"
  6. #include "SkyBox.h"
  7. //////////////////////////////////////////////////////////////////////
  8. // Construction/Destruction
  9. //////////////////////////////////////////////////////////////////////
  11. CSkyBox::CSkyBox()
  12. {
  13. }
  14. CSkyBox::~CSkyBox()
  15. {
  16. }
  17. bool CSkyBox::InitSkyBox(int XLenght, int YLenght,int ZLenght,
  18.  int CenterX,int CenterY,int CenterZ)
  19. {
  20. m_XLength=XLenght;
  21. m_YLength=YLenght;
  22. m_ZLength=ZLenght;
  23. m_CenterX=CenterX;
  24. m_CenterY=CenterY;
  25. m_CenterZ=CenterZ;
  27. CTexManager cTexManager;
  28. texSky[0]=cTexManager.GetTextureID(TEX_SKY_0);
  29. texSky[1]=cTexManager.GetTextureID(TEX_SKY_1);
  30. texSky[2]=cTexManager.GetTextureID(TEX_SKY_2);
  31. texSky[3]=cTexManager.GetTextureID(TEX_SKY_3);
  32. texSky[4]=cTexManager.GetTextureID(TEX_SKY_4);
  33. return true;
  34. }
  35. void CSkyBox::DrawSkyBox()
  36. {
  37. int lx,ly,lz,cx,cy,cz;
  38. lx=m_XLength;
  39. ly=m_YLength;
  40. lz=m_ZLength;
  41. cx=m_CenterX;
  42. cy=m_CenterY;
  43. cz=m_CenterZ;
  45. float btmy=0.0f;//This variable indicate how much texture should be cut from 0 to btmy
  46. //  glDisable(GL_FOG); 
  47. ////////front
  48.   glBindTexture(GL_TEXTURE_2D, texSky[0]);
  49.     glEnable(GL_TEXTURE_2D); 
  50.    glBegin(GL_QUADS);
  51.             glTexCoord2f(0,btmy);
  52.     glVertex3i(-lx+cx, cy,   -lz+cz);
  54.              glTexCoord2f(1,btmy);
  55.     glVertex3i(lx+cx, cy,   -lz+cz);
  57.             glTexCoord2f(1,1);
  58.     glVertex3i(lx+cx, ly+cy,   -lz+cz);
  60.             glTexCoord2f(0,1);
  61.     glVertex3i(-lx+cx, ly+cy,    -lz+cz);
  62.             glEnd();
  63. glDisable(GL_TEXTURE_2D); 
  64. ///     ////////////////sky1
  65. /////////////////right
  66. glBindTexture(GL_TEXTURE_2D, texSky[1]);
  67.     glEnable(GL_TEXTURE_2D); 
  68.   
  69. glBegin(GL_QUADS);
  70.             glTexCoord2f(0,btmy);
  71.     glVertex3i(lx+cx, cy,    -lz+cz);
  73.              glTexCoord2f(1,btmy);
  74.     glVertex3i(lx+cx, cy,    lz+cz);
  76.             glTexCoord2f(1,1);
  77.     glVertex3i(lx+cx, ly+cy,    lz+cz);
  79.             glTexCoord2f(0,1);
  80.     glVertex3i(lx+cx, ly+cy,    -lz+cz);
  81.             glEnd();
  82. glDisable(GL_TEXTURE_2D); 
  83. ///     ////////////////sky2
  84. //////////////back
  85. glBindTexture(GL_TEXTURE_2D, texSky[2]);
  86.     glEnable(GL_TEXTURE_2D); 
  87.  
  88. glBegin(GL_QUADS);
  89.             glTexCoord2f(0,btmy);
  90.     glVertex3i(lx+cx, cy,    lz+cz);
  92.              glTexCoord2f(1,btmy);
  93.     glVertex3i(-lx+cx, cy,    lz+cz);
  95.             glTexCoord2f(1,1);
  96.     glVertex3i(-lx+cx, ly+cy,    lz+cz);
  98.             glTexCoord2f(0,1);
  99.     glVertex3i(lx+cx, ly+cy,    lz+cz);
  100.             glEnd();
  101. glDisable(GL_TEXTURE_2D); 
  102. ///     ////////////////sky3
  103. ////////////////left
  104. glBindTexture(GL_TEXTURE_2D, texSky[3]);
  105.     glEnable(GL_TEXTURE_2D); 
  106.        glBegin(GL_QUADS);
  107.             glTexCoord2f(0,btmy);
  108.     glVertex3i(-lx+cx, cy,    lz+cz);
  110.              glTexCoord2f(1,btmy);
  111.     glVertex3i(-lx+cx, cy,    -lz+cz);
  113.             glTexCoord2f(1,1);
  114.     glVertex3i(-lx+cx, ly+cy,    -lz+cz);
  116.             glTexCoord2f(0,1);
  117.     glVertex3i(-lx+cx, ly+cy,    lz+cz);
  118.             glEnd();
  119. glDisable(GL_TEXTURE_2D); 
  120. ///     ////////////////sky4
  121. /////////////up
  122. glBindTexture(GL_TEXTURE_2D, texSky[4]);
  123.     glEnable(GL_TEXTURE_2D); 
  125. glBegin(GL_QUADS);
  126.             glTexCoord2f(0,0);
  127.     glVertex3i(-lx+cx, ly+cy,    -lz+cz);
  129.              glTexCoord2f(1,0);
  130.     glVertex3i(lx+cx,ly+cy,    -lz+cz);
  132.             glTexCoord2f(1,1);
  133.     glVertex3i(lx+cx, ly+cy,    lz+cz);
  135.             glTexCoord2f(0,1);
  136.     glVertex3i(-lx+cx, ly+cy,    lz+cz);
  137.             glEnd();
  138. glDisable(GL_TEXTURE_2D);
  139.   //glEnable(GL_FOG); 
  140. }