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I cannot figure out a solution to my shadown projections using
shadow volumes and stencil buffers. The problem can be viewed in:
http://www.dt.fee.unicamp.br/~ricfow/shadowProblem.avi
In this other video:
http://www.dt.fee.unicamp.br/~ricfow/shadowProblemAux.avi
only the faces associated to the silhouettes have been draw,
where blue means front face and red back face.
What could be the problem?
Problem solved. Some edges beloging to the silhouettes were being extruded twice. Thanks.