Primitive.cc

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00001 
00005 #include "Primitive.h"
00006 #include "HitRecord.h"
00007 #include "Material.h"
00008 #include "Ray.h"
00009 #include "Vector.h"
00010 
00011 Primitive::Primitive(Material* matl)
00012   : matl(matl)
00013 {
00014 }
00015 
00016 Primitive::~Primitive()
00017 {
00018 }
00019 
00020 void Primitive::preprocess()
00021 {
00022   matl->preprocess();
00023 }
00024 
00025 void Primitive::computeUVW(Vector& uvw, const RenderContext& context,
00026                            const Ray& ray, const HitRecord& hit) const
00027 {
00028   Point hitpos = ray.origin()+ray.direction()*hit.minT();
00029   uvw = Vector(hitpos);
00030 }

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