source: GTP/trunk/App/Demos/Illum/pathmap/Triangle.hpp @ 2197

#pragma once
#include "Intersectable.hpp"

class Triangle : public Intersectable {
//      const Material*         material;
        const Vector*                   a, *b, *c;              // the 3 vertices
        Vector                  normal;                                 // surface normal
        enum DominantAxis{X_DOMINANT, Y_DOMINANT, Z_DOMINANT}   dominantAxis;
        // pre computed values for faster intersection testing:
        float                   hyperPlaneShiftOffset;
        float                   d1, d2, d3, d4, d5, d6;
public:
        Triangle(const Vector* a, const Vector* b, const Vector* c, const Material* material);
        bool intersect(const Ray& ray, float& depth, float rayMin, float rayMax);
        bool intersectBackSide(const Ray& ray, float& depth, float rayMin, float rayMax);
        Vector getShadingNormal(const Vector& point)
        {
                return normal;
        }
};