Re: [Algorithms] Flipping/Rotating through all possible combinations

[Jeff R. <je...@8m...>]

As I recall, If you're doing environment mapping using a normal map,
sometimes depending on your normal map content and your view angle you can
get normals that point away from the camera (i.e. N dot V < 0), and this can
sometimes end up looking into "wrong", or at least unexpected, sections of
the cube map. Don't know if this is your problem, but if it is it can
probably be fixed with modified art content (easy), or limiting the normal
to at most be 90 degress off the view vector (a little shader work, a little
harder).

-- 
Jeff Russell
Engineer, 8monkey Labs
www.8monkeylabs.com