156 lines
2.2 KiB
C++
156 lines
2.2 KiB
C++
/* object.c
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*
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* Definition of generic scene objects.
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*
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* Eryn Wells <eryn@erynwells.me>
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*/
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#include <cassert>
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#include <cmath>
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#include <cstdlib>
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#include "object.hh"
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#include "material.hh"
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#include "basics/basics.hh"
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using charles::basics::Ray;
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using charles::basics::Matrix4;
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using charles::basics::Vector4;
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namespace charles {
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/*
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* charles::Object::Object --
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*/
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Object::Object(const Vector4& origin)
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: mTranslation(Matrix4::Translation(origin)),
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mMaterial()
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{ }
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/*
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* charles::Object::~Object --
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*/
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Object::~Object()
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{ }
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/*
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* charles::Object::GetMaterial --
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*/
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Material&
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Object::GetMaterial()
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{
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return mMaterial;
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}
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/*
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* charles::Object::Place --
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*/
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void
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Object::Place(const Vector4 &p)
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{
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mTranslation = Matrix4::Translation(p);
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}
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/*
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* charles::Object::SetMaterial --
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*/
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void
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Object::SetMaterial(const Material& material)
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{
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mMaterial = material;
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}
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/*
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* charles::Object::Intersect --
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*/
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bool
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Object::Intersect(const basics::Ray& ray,
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TVector& t,
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Stats& stats)
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const
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{
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Ray objSpaceRay = ToObjectSpace(ray);
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return DoIntersect(objSpaceRay, t, stats);
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}
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/*
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* charles::Object::Normal --
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*/
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Vector4
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Object::Normal(const Vector4& p)
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const
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{
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Vector4 norm = Transpose(mTranslation) * DoNormal(ToObjectSpace(p));
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return norm;
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}
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/*
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* charles::Object::ToObjectSpace --
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*/
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Ray
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Object::ToObjectSpace(Ray ray)
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const
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{
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ray.origin = ToObjectSpace(ray.origin);
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//ray.direction = ToObjectSpace(ray.direction).Normalize();
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return ray;
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}
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/*
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* charles::Object::ToObjectSpace --
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*/
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Vector4
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Object::ToObjectSpace(const Vector4& v)
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const
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{
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return mTranslation * v;
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}
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/*
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* charles::Object::FromObjectSpace --
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*/
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Vector4
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Object::FromObjectSpace(const Vector4& v)
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const
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{
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return Inverse(mTranslation) * v;
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}
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/*
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* charles::Object::Write --
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*/
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void
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Object::Write(std::ostream& ost)
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const
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{
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ost << "[Object]";
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}
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/*
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* charles::operator<< --
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*/
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std::ostream&
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operator<<(std::ostream& ost,
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const Object& object)
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{
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ost << "[";
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object.Write(ost);
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ost << " translate=" << object.mTranslation.Column(3) << "]";
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return ost;
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}
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} /* namespace charles */
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