From: Christian Skluzacek (csklu_fs++at++yahoo.com)
Date: 05/08/2002 06:51:08
Hi again,
More questions about pfLightSource projective
textures. Does the projective texturing use any of the
values specified by the frustum (specifically in this
case the angle)? Using the
/usr/share/Performer/src/pguide/libpf/C/shadows.c as
an example of implementing the spot texture (texture
size of 256, spotradius of 64), I then change the
frustum angle but notice no change in the projective
texture. What is the relationship of the frustum and
the projective texture then (if any).
Also, I am having troubles switching shadows and
projective textures on and off during runtime. It
seems I can only switch one of them off if the other
one is on. So the only way I can ever have both
effects off is if I start up with both off. Once one
effect is turned on, it can't be turned off unless the
other one is turned on. Seems kind of strange to me.
Thanks,
Chris
Performer 2.2.7, Irix 6.5.7, linking Performer libs statically.
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