our_gl.h

#ifndef __OUR_GL_H__
#define __OUR_GL_H__

#include "tgaimage.h"
#include "geometry.h"

extern Matrix ModelView;
extern Matrix Viewport;
extern Matrix Projection;
const float depth = 2000.f;

void viewport(int x, int y, int w, int h);
void projection(float coeff = 0.f);
void lookat(Vec3f eye, Vec3f center, Vec3f up);

struct IShader
{
	virtual ~IShader();
	virtual Vec4f vertex(int iface, int nthvert) =0;
	virtual bool fragment(Vec3f gl_fragcoords,Vec3f bar, TGAColor& color) = 0;
};

void triangle(mat<4,3,float>& clipc, IShader& shader, TGAImage& image,float* depthbuffer);
//void triangle(mat<4, 3, float>& pts, IShader& shader, TGAImage& image, float* zbuffer);



#endif // __OUR_GL_H_