There are no reviews yet. Be the first to send feedback to the community and the maintainers!
Repository Details
A Simple, Optimized Bounding Volume Hierarchy for Ray/Object Intersection Testing
Code: Fast-BVH, an optimized Bounding Volume Hierarchy
Author: Brandon Pelfrey ([email protected])
Borrowed AABB Intersection code referenced in BBox.cpp
Date: April 17, 2012
This code, which I am releasing for public use, provides an optimized Bounding Volume Hierarchy (BVH).
The vector and axis-aligned bounding box (AABB) code included requires SSE in order to function.
The entire build and intersection test functionality is recursion-less and is much more optimized than
the one found in say, PBRT (Physically Based Rendering, by Pharr + Humphreys). With that said, if you
see another cool trick to speed things up, I'd love to see it!
The BVH itself makes minimal assumptions on the items it may contain: Objects need only implement the
getIntersection(), getBBox(), and getCentroid() functions in order to be queryable.
The included example code renders a million spheres distributed inside of a cube using the BVH (in <3 seconds on my old MacBook!)
I have attempted to comment this code well and make everything well-understood. If there is an issue
with the code, a question as to how something works, or if you use this in a project, please let me know!
