1 #ifndef TEXTURE_HXX
 2 #define TEXTURE_HXX
 3 
 4 #include "Image.hxx"
 5 
 6 // A class for bitmap textures. We did not use any of them...
 7 class Texture : public Image
 8 {
 9 public:
10   Texture(int resX, int resY) : Image(resX,resY)
11   {};
12 
13   Texture(char *fileName) : Image(1,1)
14   { ReadPPM(fileName); };
15   
16   Vec3f GetTexel(float u, float v)
17   {
18     /* find texel indices */
19     
20     int px = (int)floor(resX * u);
21     int py = (int)floor(resY * v);
22     
23     /* texture repeat wrap */
24     
25     px = ((px % resX) + resX) % resX;
26     py = ((py % resY) + resY) % resY;
27     
28     return (*this)[resY-py-1][px];
29   };
30 };
31 
32 #endif
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