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.
Read :
http://www.opengl.org/sdk/docs/manglsl/xhtml/textureProj.xml
The “projection” is the one happening with homogeneous coordinates.
This is needed to make perspective working correctly, allows to define texcoords at infinity, etc.
This topic was automatically closed 183 days after the last reply. New replies are no longer allowed.