I''m trying a couple of different LOD techniques, and right now it''s chunked LOD. In the chunked lod paper, it describes the distance from a node as "the distance from the viewpoint to the closest point on the chunk''s bounding volume..." I know what he means by bounding volume, but could anyone describe the algorithm for this? I can''t really think of a way to figure that out, and I''m sure there''s a simple algorithm but I just don''t know it. Thanks!

Great! I was thinking of using spheres, but that can lead to big distance errors I thought, but if you say it works fine it''s worth a try. I''ll try that first, thanks!