virtual BoundingBox<T, D> get_axis_aligned_bounding_box() const;
virtual bool contains(const LinAl::Vector<T, D> &) const;
-private:
- Ray<T, D> make_local_ray(const Ray<T, D> &) const;
-public:
virtual unsigned get_max_ray_intersections() const { return shape->get_max_ray_intersections(); }
virtual unsigned get_intersections(const Ray<T, D> &, SurfacePoint<T, D> *, unsigned) const;
};
template<typename T, unsigned D>
inline BoundingBox<T, D> TransformedShape<T, D>::get_axis_aligned_bounding_box() const
{
- BoundingBox<T, D> inner_bbox = shape->get_axis_aligned_bounding_box();
-
- LinAl::Vector<T, D> min_pt;
- LinAl::Vector<T, D> max_pt;
- for(unsigned i=0; i<(1<<D); ++i)
- {
- LinAl::Vector<T, D> point;
- for(unsigned j=0; j<D; ++j)
- point[j] = ((i>>j)&1 ? inner_bbox.get_maximum_coordinate(j) : inner_bbox.get_minimum_coordinate(j));
-
- point = transformation.transform(point);
-
- for(unsigned j=0; j<D; ++j)
- {
- min_pt[j] = std::min(min_pt[j], point[j]);
- max_pt[j] = std::max(min_pt[j], point[j]);
- }
- }
-
- return BoundingBox<T, D>(min_pt, max_pt);
+ return transformation.transform(shape->get_axis_aligned_bounding_box());
}
template<typename T, unsigned D>
return shape->contains(inverse_trans.transform(point));
}
-template<typename T, unsigned D>
-inline Ray<T, D> TransformedShape<T, D>::make_local_ray(const Ray<T, D> &ray) const
-{
- LinAl::Vector<T, D> local_dir = inverse_trans.transform_linear(ray.get_direction());
- float distortion = local_dir.norm();
- return Ray<T, D>(inverse_trans.transform(ray.get_start()), local_dir, ray.get_limit()*distortion);
-}
-
template<typename T, unsigned D>
inline unsigned TransformedShape<T, D>::get_intersections(const Ray<T, D> &ray, SurfacePoint<T, D> *points, unsigned size) const
{
- Ray<T, D> local_ray = make_local_ray(ray);
+ Ray<T, D> local_ray = inverse_trans.transform(ray);
unsigned count = shape->get_intersections(local_ray, points, size);
if(points)