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RLMManager.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：9k
源码类别：

游戏引擎

开发平台：

Visual C++

RLMManager.cpp：源码内容
  1. // RLMManager.cpp: implementation of the CRLMManager class.
  2. //
  3. //////////////////////////////////////////////////////////////////////
  5. #include "stdafx.h"
  6. #include "RLMManager.h"
  7. #include "texture.h"
  8. #include <stdio.h>
  9. //////////////////////////////////////////////////////////////////////
  10. // Construction/Destruction
  11. //////////////////////////////////////////////////////////////////////
  12. CRLMManager::CRLMManager()
  13. {
  14.     m_bMultitexEnable=false;
  15. m_pLight=NULL;
  16. m_pQuads=NULL;
  17. m_pTexID=NULL;
  18. m_pVertPool=NULL;
  19. }
  20. CRLMManager::~CRLMManager()
  21. {
  22. if(m_pLight!=NULL)
  23. delete [] m_pLight;
  24. if(m_pQuads!=NULL)
  25. delete [] m_pQuads;
  26. if(m_pTexID!=NULL)
  27. delete [] m_pTexID;
  28. if(m_pVertPool!=NULL)
  29. delete [] m_pVertPool;
  30. }
  32. bool CRLMManager::ReadRLMFile()
  33. {
  34. FILE *fp=NULL;
  35.     fp=fopen("lightmap2.rlm", "rb");
  36. if(fp==NULL)
  37. {
  38. MessageBox(0, "Can not open rlm file !", "Error", MB_OK | MB_ICONERROR);
  39.     return false; //
  40. }
  41. /////////////////////// check the file
  42. char id[24],version;
  43. fread(id,      sizeof(char),24,fp);
  44. fread(&version,sizeof(char),1 ,fp);
  45. if(strncmp( id, "Radiosity Lighting Model", 24 ) != 0 )
  46. {
  47. MessageBox(0, "Not a avalid rlm file !", "Error", MB_OK | MB_ICONERROR);
  48.     fclose(fp);
  49.     return false; // "Not a valid .skn file."
  50. }
  51. if ( version !=1 )
  52. {
  53.     MessageBox(0, "Version error !", "Error", MB_OK | MB_ICONERROR);
  54.     fclose(fp);
  55.     return false; // "Not a valid .skn file."
  56. }
  57. ////////////////read light info
  58. fread(&m_diffuse, sizeof(unsigned char),1 ,fp);
  59. fread(&m_lightnum,sizeof(int),          1 ,fp);
  60.     m_pLight=new LIGHT[m_lightnum];
  61.     fread(m_pLight ,sizeof(LIGHT), m_lightnum ,fp);
  62. ////////////////read texture info
  63. fread(&m_texnum, sizeof(int),1 ,fp);
  64. m_pTexID=new unsigned int [m_texnum];
  65. char filename[64];
  66. CTexture  cTexture;
  67. for(int i=0;i<m_texnum;i++)
  68. {
  69.         fread(filename ,sizeof(char),64 ,fp);
  70.         if(!cTexture.MakeTextureBind(filename,&m_pTexID[i]))
  71. {
  72.         MessageBox(0, "Can not open texture file  !", "Error", MB_OK | MB_ICONERROR);
  73.         fclose(fp);
  74.         return false; // "Not a valid .skn file."
  75. }
  76. }
  77. /////////////// read vertex data
  78. fread(&m_vertnum, sizeof(int),1 ,fp);
  79. m_pVertPool=new VERTEX [m_vertnum];
  80. fread(m_pVertPool, sizeof(VERTEX),m_vertnum ,fp);
  81.     /////////////// read quads data
  82. fread(&m_quadnum, sizeof(int),1 ,fp);
  83.     m_pQuads=new RLM_QUAD[m_quadnum];
  84. m_pRlmID=new unsigned int [m_quadnum];
  85.     unsigned char temp[32*32*3];
  86. for( i=0;i<m_quadnum;i++)
  87. {
  88.      fread(&m_pQuads[i], sizeof(RLM_QUAD), 1,fp);
  89.         fread(temp,sizeof(unsigned char),32*32*3,fp);
  90. if(!cTexture.MakeRadiosityLightmapBind(temp,32,32,&m_pRlmID[i]))
  91. {
  92.         MessageBox(0, "Can not make rlm texture !", "Error", MB_OK | MB_ICONERROR);
  93.         fclose(fp);
  94.         return false; // "Not a valid .skn file."
  95. }
  96. }
  97. ///////////// close file
  98. fclose(fp);
  99. return true;
  100. }
  101. ////////////////////////////////////////
  102. bool CRLMManager::InitRadiosityScene()
  103. {
  104. if(!ReadRLMFile())
  105. {
  106. MessageBox(0, "Read rlm file error !", "Error", MB_OK | MB_ICONERROR);
  107. return FALSE;
  108. }
  110. /* if(!m_cExtension.initMultitexture())
  111. {
  112. MessageBox(0, "cRadiosity error 2", "Error", MB_OK | MB_ICONERROR);
  113. return FALSE;
  114. }*/
  115.     m_bMultitexEnable=true;
  116. return true;
  117. }
  118. void CRLMManager::DrawRadiosityScene(int renderModel)
  119. {
  120. // if(m_bMultitexEnable)MultitextureDrawScene();
  121. // else 
  122. BlendDrawScene(renderModel);
  123.         DrawLight();
  124. }
  126. void CRLMManager::BlendDrawScene(int renderModel)
  127. {
  128. int i,j;
  129. for(i=0;i<m_quadnum;i++)//m_quadnum
  130. {
  131. //////////////First layer
  132.         glBindTexture(GL_TEXTURE_2D,m_pTexID[m_pQuads[i].texid]);
  133.         glEnable(GL_TEXTURE_2D);
  135.     glBegin(GL_QUADS);
  136.     for(j=0;j<4;j++)
  137. {
  138.             glTexCoord2f(m_pQuads[i].texcoord[j].u,m_pQuads[i].texcoord[j].v);
  139. glVertex3f(m_pVertPool[(m_pQuads[i].vertindex[j])].xpos,
  140.        m_pVertPool[(m_pQuads[i].vertindex[j])].ypos,
  141.    m_pVertPool[(m_pQuads[i].vertindex[j])].zpos);
  142. }
  143.      glEnd();
  145.         ////////////second layer
  146.         if(renderModel==0)glBlendFunc(GL_DST_COLOR,GL_ONE);
  147.         if(renderModel==1)glBlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
  148.         if(renderModel==2)glBlendFunc(GL_ONE,GL_SRC_COLOR);
  149.         if(renderModel==3)glBlendFunc(GL_SRC_COLOR,GL_DST_COLOR);
  150.         if(renderModel==4)glBlendFunc(GL_SRC_COLOR,GL_ONE);
  151.         if(renderModel==5)glBlendFunc(GL_ZERO,GL_ONE);
  153. if(renderModel<6)glEnable(GL_BLEND);
  155.         glBindTexture(GL_TEXTURE_2D,m_pRlmID[i]);
  156.         glEnable(GL_TEXTURE_2D);
  158.      glBegin(GL_QUADS);
  160.             glTexCoord2f(0,0);
  161. glVertex3f(m_pVertPool[(m_pQuads[i].vertindex[0])].xpos,
  162.        m_pVertPool[(m_pQuads[i].vertindex[0])].ypos,
  163.    m_pVertPool[(m_pQuads[i].vertindex[0])].zpos);
  164.             glTexCoord2f(1,0);
  165. glVertex3f(m_pVertPool[(m_pQuads[i].vertindex[1])].xpos,
  166.        m_pVertPool[(m_pQuads[i].vertindex[1])].ypos,
  167.    m_pVertPool[(m_pQuads[i].vertindex[1])].zpos);
  168.             glTexCoord2f(1,1);
  169. glVertex3f(m_pVertPool[(m_pQuads[i].vertindex[2])].xpos,
  170.        m_pVertPool[(m_pQuads[i].vertindex[2])].ypos,
  171.    m_pVertPool[(m_pQuads[i].vertindex[2])].zpos);
  172.             glTexCoord2f(0,1);
  173. glVertex3f(m_pVertPool[(m_pQuads[i].vertindex[3])].xpos,
  174.        m_pVertPool[(m_pQuads[i].vertindex[3])].ypos,
  175.    m_pVertPool[(m_pQuads[i].vertindex[3])].zpos);
  177.     glEnd();
  179.         glDisable(GL_BLEND);
  181. }
  182. }
  184. void CRLMManager::MultitextureDrawScene()
  185. {  /*
  186. m_cExtension.glActiveTextureARB(GL_TEXTURE1_ARB);
  187. glBindTexture(GL_TEXTURE_2D,m_texlight);
  188. glEnable(GL_TEXTURE_2D);
  189.     m_cExtension.glActiveTextureARB(GL_TEXTURE0_ARB);
  190. glBindTexture(GL_TEXTURE_2D,m_tex0);
  191. glEnable(GL_TEXTURE_2D);
  193. glBegin(GL_QUADS);
  194. m_cExtension.glMultiTexCoord2fARB(GL_TEXTURE0_ARB,0,0); 
  195. m_cExtension.glMultiTexCoord2fARB(GL_TEXTURE1_ARB,0,0); 
  196. glVertex3f(0,0,0);
  197. m_cExtension.glMultiTexCoord2fARB(GL_TEXTURE0_ARB,0,1); 
  198. m_cExtension.glMultiTexCoord2fARB(GL_TEXTURE1_ARB,0,1); 
  199. glVertex3f(0,0,3.2f);
  200. m_cExtension.glMultiTexCoord2fARB(GL_TEXTURE0_ARB,1,1); 
  201. m_cExtension.glMultiTexCoord2fARB(GL_TEXTURE1_ARB,1,1); 
  202. glVertex3f(-3.2f,0,3.2f);
  203. m_cExtension.glMultiTexCoord2fARB(GL_TEXTURE0_ARB,1,0); 
  204. m_cExtension.glMultiTexCoord2fARB(GL_TEXTURE1_ARB,1,0); 
  205. glVertex3f(-3.2f,0,0);
  206. glEnd();
  208. m_cExtension.glActiveTextureARB(GL_TEXTURE1_ARB);
  209. glDisable(GL_TEXTURE_2D);
  210. m_cExtension.glActiveTextureARB(GL_TEXTURE0_ARB);
  211. glDisable(GL_TEXTURE_2D);
  212. */
  213. }
  216. void CRLMManager::DrawLight()
  217. {
  218. glDisable(GL_TEXTURE_2D);
  219. glDisable(GL_CULL_FACE);
  220. for(int i=0;i<m_lightnum;i++)
  221. {
  222. glColor3f(m_pLight[i].color.r,m_pLight[i].color.g,m_pLight[i].color.b);
  223.         float size=0.2f;
  224. glBegin(GL_QUADS);
  225.     /////Y
  226.             glVertex3f(m_pLight[i].position.xpos-size,
  227.                        m_pLight[i].position.ypos,
  228.    m_pLight[i].position.zpos);
  229.             glVertex3f(m_pLight[i].position.xpos,
  230.                        m_pLight[i].position.ypos,
  231.    m_pLight[i].position.zpos+size);
  232.             glVertex3f(m_pLight[i].position.xpos+size,
  233.                        m_pLight[i].position.ypos,
  234.    m_pLight[i].position.zpos);
  235.             glVertex3f(m_pLight[i].position.xpos,
  236.                        m_pLight[i].position.ypos,
  237.    m_pLight[i].position.zpos-size);
  238. glEnd();
  239. glBegin(GL_QUADS);
  240.             //////// X
  241.             glVertex3f(m_pLight[i].position.xpos,
  242.                        m_pLight[i].position.ypos-size,
  243.    m_pLight[i].position.zpos);
  244.             glVertex3f(m_pLight[i].position.xpos,
  245.                        m_pLight[i].position.ypos,
  246.    m_pLight[i].position.zpos+size);
  247.             glVertex3f(m_pLight[i].position.xpos,
  248.                        m_pLight[i].position.ypos+size,
  249.    m_pLight[i].position.zpos);
  250.             glVertex3f(m_pLight[i].position.xpos,
  251.                        m_pLight[i].position.ypos,
  252.    m_pLight[i].position.zpos-size);
  253. glEnd();
  254. glBegin(GL_QUADS);
  255.             /////// Z
  256.             glVertex3f(m_pLight[i].position.xpos-size,
  257.                        m_pLight[i].position.ypos,
  258.    m_pLight[i].position.zpos);
  259.             glVertex3f(m_pLight[i].position.xpos,
  260.                        m_pLight[i].position.ypos+size,
  261.    m_pLight[i].position.zpos);
  262.             glVertex3f(m_pLight[i].position.xpos+size,
  263.                        m_pLight[i].position.ypos,
  264.    m_pLight[i].position.zpos);
  265.             glVertex3f(m_pLight[i].position.xpos,
  266.                        m_pLight[i].position.ypos-size,
  267.    m_pLight[i].position.zpos);
  268. glEnd();
  269. }
  270.     glEnable(GL_CULL_FACE);
  271. glColor3f(1,1,1);
  272. }