立方体贴图(国外英文资料).docVIP

立方体贴图(国外英文资料) # includes windows.h # includes stdio.h # includes gl / gl.h # includes gl / glu.h # includes gl / glaux.h # includes graphics.h / / 变量声明 hwnd hwnd; hdc hdc; hglrc hrc = null; / / 定义渲染环境 hinstance hinstance; / / 得到程序的实例rect rect. int sw = 640; int sh = 480; glfloat aspect; bool fullscreen = 1; / / 第6节添加的变量 glfloat xrot; glfloat yrot; glfloat zrot; gluint texture [1]. # pragmas comment (lib, opengl32.lib) # pragmas comment (lib, glu32.lib) # pragmas comment (lib, glaux.lib) / / 第6节新添加的函数 aux _ rgbimagerec * loadbmp (char * filename) / / 加载一个位图图像 { / / file file * file = null; if (! filename) return null; file = fopen (filename, r); / / / / 文件存在 读取文件if (file) { fclose (file). return auxdibimageload (filename); } return null; / / 不存在返回空; } / / 第6节新添加的函数 int loadgltextures () / / 将加载的图片转换成纹理 { int status = false; aux _ rgbimagerec * textureimage [1]. memset (textureimage, 0, sizeof (void *); 1 if (textureimage [0] = loadbmp (date / 1.bmp)) { status = true; glgentextures (1) texture [0]); glbindtexture (gl texture 2d _ _, texture [0]); glteximage2d (gl texture 2d _ _, 0.3, textureimage [0] - sizex, textureimage [0] - sizey, 0, k _ rgb, gl _ unsigned _ bytes, textureimage [0] - date); gltexparameteri (gl texture 2d _ _, gl _ texture _ min _ filter, gl _ linear). gltexparameteri (gl texture 2d _ _, gl _ texture _ mag _ filter, gl _ linear). } if (textureimage [0]) { if (textureimage [0] - date) { free (textureimage [0] - date); } free (textureimage [0]); } return status; } void sceneinit (int w, int h) { / / 第6节新添加的代码 if (! loadgltextures ()) return; glenable (gl texture 2d _ _); / / 新添加结束 glshademodel (gl _ smooth). glclearcolor (0.0,0.0,0.0,0.5); glcleardepth (1.0f); glenable (gl _ depth _ test); gldepthfunc (gl _ lequal); glhint (gl _ perspective _ correction _ hint, gl _ nicest); } glvoid sceneresizeviewport (glsizei w, glsizei h) { if (b = = 0) h = 1; aspect = (glfloat) w / (glfloat) h; glviewport (0.0, w, h). glmatrixmode (gl _ project