src/rcrt/objects/AffineObject.cpp

Go to the documentation of this file.

#include "AffineObject.h"

using namespace std;

namespace rcrt
{

AffineObject::AffineObject(string name):SolidObject(name)
{
}

AffineObject::~AffineObject()
{
}

void AffineObject::updateWorldBox()
{
        worldBox = localTree.getBoundingBox().transformed(worldMatrix);
}

void AffineObject::setPrimitives(std::vector<Primitive*>* prList)
{
        cout << "building: " << name << endl;
        localTree.setTraceables(prList);
        updateWorldBox();
}

void AffineObject::setWorldMatrix(const Matrix4D& mat)
{
        worldMatrix = mat;
        invWorldMatrix = worldMatrix.inverse();
        updateWorldBox();
}

Intersection AffineObject::intersect(Ray& r) const
{
        Intersection wIns = worldBox.intersect(r);
        if(!wIns.isValid()){
                return Intersection();
        }
        Point3D org = invWorldMatrix*r.org();//wIns.getPosition();
        Vec3D dir = invWorldMatrix*r.dir();
        Ray newRay(org, dir, 0, false);
        newRay.setMinDist(0);
        Intersection lIns = localTree.intersect(newRay);
        r.tris += newRay.tris;
        if(!lIns.isValid())
                return Intersection();
        float dist = (worldMatrix * (org-lIns.getPosition())).norm();
        Intersection is(dist, lIns.getPrimitive(), r.atDistance(dist),
                        lIns.getParams().x(), lIns.getParams().y(), lIns.backSide());
        is.setGNormalL(lIns.getGNormalL());
        is.setSNormalL(lIns.getSNormalL());
        return is;
}

const AABB& AffineObject::getBoundingBox() const
{
        return worldBox;
}

const Point3D& AffineObject::getCentroid() const
{
        return worldBox.getCentroid();
}

}

---