Shadows in the CAVE
Athanasios Gaitatzes (gaitat++at++fhw.gr)
Wed, 17 Nov 1999 18:38:22 +0200
Well I took /usr/share/Performer/src/pguide/libpf/C/shadows.c to start
with and removed everything that had to do with projected textures,
spotlights included, and left only the shadow relevant code. It worked
just fine creating a shadow for the iris.flt file. I even made the
light
that casts a shadow to be an infinite light (the code had it local)
and
it still worked. So as far as I can tell I don't need spot lights in
my
scene to create shadows.
I need though to understand better the shadow frustum, and everywhere
I've read it says it has to tightly fit the scene. So that's where
my
problem comes in with the continuously changing frustum of the CAVE.
Can you explain your statement "the field of view of a projective shadow
is constrained"
Thanks for your help.
--
Athanasios Gaitatzes (gaitat++at++fhw.gr)
Virtual Reality Department
Foundation of the Hellenic World
38 Poulopoulou St., Athens 11851, Greece
Tel: +30 1 3422292 Fax: +30 1 3422272
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on Wed Nov 17 1999 - 08:46:00 PST