nuclear@2: #ifndef TEXTURE_H_
nuclear@2: #define TEXTURE_H_
nuclear@2: 
nuclear@2: #include "image.h"
nuclear@2: #include "color.h"
nuclear@2: 
nuclear@2: class Texture {
nuclear@2: public:
nuclear@2: 	Image<float> img;
nuclear@2: 
nuclear@2: 	inline Color lookup(float u, float v) const;
nuclear@2: 
nuclear@2: 	bool load(const char *fname) { return img.load(fname); }
nuclear@2: };
nuclear@2: 
nuclear@2: 
nuclear@2: inline Color Texture::lookup(float u, float v) const
nuclear@2: {
nuclear@2: 	int xsz = img.get_width();
nuclear@2: 	int ysz = img.get_height();
nuclear@2: 
nuclear@2: 	int x = (float)u / (float)xsz;
nuclear@2: 	int y = (float)v / (float)ysz;
nuclear@2: 
nuclear@2: 	float *pix = img.get_pixels() + ((y % ysz) * xsz + (x % xsz)) * 4;
nuclear@2: 	return Color(pix[0], pix[1], pix[2]);
nuclear@2: }
nuclear@2: 
nuclear@2: 
nuclear@2: #endif	// TEXTURE_H_