A Paste by `miRaGe

1

void initTextureMap() {     //glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);     glGenTextures(1, &envmapId);     glBindTexture(GL_TEXTURE_CUBE_MAP, envmapId);     glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, GL_RGBA, texSize, texSize, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);     glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 0, GL_RGBA, texSize, texSize, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);     glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, 0, GL_RGBA, texSize, texSize, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);     glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, 0, GL_RGBA, texSize, texSize, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);     glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, 0, GL_RGBA, texSize, texSize, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);     glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, 0, GL_RGBA, texSize, texSize, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);          glEnable(GL_TEXTURE_CUBE_MAP_EXT);     glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_REFLECTION_MAP_EXT);     glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_REFLECTION_MAP_EXT);     glTexGeni(GL_R, GL_TEXTURE_GEN_MODE, GL_REFLECTION_MAP_EXT);     glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);     glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);     glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);     glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_NEAREST);     glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_NEAREST);     glEnable(GL_TEXTURE_GEN_S);     glEnable(GL_TEXTURE_GEN_T);     glEnable(GL_TEXTURE_GEN_R);     glEnable(GL_NORMALIZE);     envmapParam = cgGetNamedParameter(fragProg, "envMap"); } void generateTextureMap() {     glMatrixMode(GL_MODELVIEW);     glBindTexture(GL_TEXTURE_CUBE_MAP, envmapId);     glLoadIdentity();     gluLookAt(0,0,0,    1,0,0,        0,1,0);     glCopyTexSubImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, 0,0, 0,0,    texSize,texSize);     glLoadIdentity();     gluLookAt(0,0,0,    -1,0,0,        0,1,0);     glCopyTexSubImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 0, 0,0, 0,0,    texSize,texSize);     glLoadIdentity();     gluLookAt(0,0,0,    0,0,1,        0,1,0);          glCopyTexSubImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, 0, 0,0, 0,0,    texSize,texSize);          glLoadIdentity();     gluLookAt(0,0,0,    0,0,-1,        0,1,0);     glCopyTexSubImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, 0, 0,0, 0,0,    texSize,texSize);     glLoadIdentity();     gluLookAt(0,0,0,    0,1,0,        0,0,1);     glCopyTexSubImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, 0, 0,0, 0,0,    texSize,texSize);     glLoadIdentity();     gluLookAt(0,0,0,    0,-1,0,        0,0,1);     glCopyTexSubImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, 0, 0,0, 0,0,    texSize,texSize); }