Hello Alastair,
If you parse the forum/mailing list for shadow and multitexturing or
other terms you will find a heap of information about this.
In general you'll have to write your own custum shader in order to use
shadow with more than one texture /3d-texture and so on.
The stock shadow-shader is only sampling one base texture and performs
simple lighting.
In my projects I've abstracted the shadow to a separate function in the
vertex and fragment shaders (usually call float shadowTerm())
which is then later called for fragment color determination (e.g.
gl_FragColor = ambient + shadowTerm *diffuse)
hth
Sebastian
Hello,
Can anyone tell me if it's possible to get any of the shadow map techniques to
work with an object using texture3D?
I can only get the shadow texture technique work, shadow map just seems to
overwrite the texture on the objects.
Do I need to put the shadows in a different texture unit or something?
Any help much appreciated!,
Many thanks,
Ally
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=42933#42933
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