bool Mesh
::intersect(const Ray &r, float &t, DifferentialGeometry &dg) const
{
// create a TriangleIntersector
TriangleIntersector intersector;
intersector.init();
intersector.mMesh = this;
if(mTree.intersect(r.getAnchor(), r.getDirection(),
r.getInterval()[0], r.getInterval()[1],
intersector))
{
t = intersector.mT;
const Triangle &tri = *intersector.mHitFace;
// fill out DifferentialGeometry details
getDifferentialGeometry(tri, r(t),
intersector.mBarycentricCoordinates[0],
intersector.mBarycentricCoordinates[1],
dg);
return true;
} // end if
return false;
} // end Mesh::intersect()
bool Mesh
::intersect(const Ray &r) const
{
// create a TriangleShadower
TriangleShadower shadower = {this};
return mTree.shadow(r.getAnchor(), r.getDirection(), r.getInterval()[0], r.getInterval()[1], shadower);
} // end Mesh::intersect()