 | | | shadow pass? _sc | shadow pass? _sc 2005-03-18 - By Sam Cuttriss
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im having an issue an issue with shadow passes.
im sure you all know the hard edge you get with the shadow shader at the
edges of an object where its surface becomes parallel to a light ray,
its makes compositing shadows an ugly affair.
to overcome this ive been rendering another pass with an incidence
(surface_ light list, shadows off) and multiplying my shadow pass with this.
I would prefer not to do this? is there any way to get the incidence
(surface_lightlist) to not take light intensity or shadows into account?
I just want it to be white perpendicular to the light and black when
parallel.
another question, is there any way to make a material clip shadows?
ie say i was rotoscoping a shadow of a cube onto a onto a real sphere
and table.
i have a cube floating above a stand in sphere on a table in my 3d scene,
the shadow of the cube falls across the sphere and the table.
i want the sphere to eliminate the shadow of the cube on the table.
any ideas?
if the two of these were solvable 3 passes would become a far cleaner
and more manageable 1.
thanks all
have a good weekend.
_sam
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