[OT] Clustered BF Culling

OpenGL OpenGL: Advanced Coding
1

I saw once an article on clustered back face culling, using groups of face normals insthead of single face normals, but I can’t find it anymore.
Do some1 remember the url of that article ??
Thanks in advance.

2

http://citeseer.nj.nec.com/cs

The paper actually titled “Clustered backface culling” isn’t in there, but look for “Fast backface culling using normal masks” by Zhang & Hoff, or “Hierarchical back-face culling” by Kumar et al.

– Tom

3

I once wrote an article on that. It’s at http://members.shaw.ca/jordanisaak/grouptriangleculling.htm

j

4

Thanks, even if it’s not exactly what I ment, it’s intereseting.
My idea was to build clusters of triangle soups, every cluster for a class of face normals.
So to check the clusters insthead of the single normals.
The only difference in my idea the faces doesn’t need to be near each other.