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'''Projective texture mapping''' is a method of [[texture mapping]] that allows a textured image to be projected onto a scene as if by a [[slide projector]]. Projective texture mapping is useful in a variety of lighting techniques and it's the starting point for [[shadow mapping]].
Projective texture mapping is essentially a special [[Matrix (mathematics)|matrix]] [[Coordinate system#Transformations|transformation]] which is performed per-vertex and then linearly interpolated as standard texture mapping.
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