26 lines
631 B
C
26 lines
631 B
C
|
#ifndef COOKTORRANCESHADER_H
|
||
|
|
#define COOKTORRANCESHADER_H
|
||
|
|
|
||
|
|
#include "shader/shader.h"
|
||
|
|
|
||
|
|
class CookTorranceShader : public Shader {
|
||
|
|
public:
|
||
|
|
CookTorranceShader(Color const &diffuseColor, Color const &ctColor, float IOR, float roughness,
|
||
|
|
float diffuseCoefficient = PI / 2.0f, float ctCoefficient = PI / 2.0f);
|
||
|
|
// Shader functions
|
||
|
|
Color shade(Scene const &scene, Ray const &ray) const override;
|
||
|
|
|
||
|
|
private:
|
||
|
|
float D(float NdotH) const;
|
||
|
|
float F(float VdotH) const;
|
||
|
|
float G(float NdotH, float NdotV, float VdotH, float NdotL) const;
|
||
|
|
|
||
|
|
Color diffuseColor;
|
||
|
|
|
||
|
|
Color ctColor;
|
||
|
|
|
||
|
|
float F0;
|
||
|
|
float m;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|