View Full Version : Problem about textureProj
03-30-2011, 07:49 AM
textureProj performs a texture lookup with projection.
Can someone explain in detail for me about the function? i do not know what the "projection " mean in this sentence.
03-30-2011, 08:09 AM
The "projection" is the one happening with homogeneous coordinates (http://en.wikipedia.org/wiki/Homogeneous_coordinates).
This is needed to make perspective working correctly, allows to define texcoords at infinity, etc.
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