Yeah. I noticed (as you probably saw) :)
I suppose I was expecting some automatic mapping between textures and
samplers depending on name. (Which, come to think of it, should be
possible to do if texturechunks were named. Will ponder more on this.)
/Marcus
Andreas Zieringer wrote:
Hi Marcus,
just call
shl->setUniformParameter("SamplerName1", 0);
shl->setUniformParameter("SamplerName2", 1);
....
Where 0 and 1 is the index of your TextureChunk.
There is also an example with multitexturing in
OpenSG/Source/Experimental/SHL/testSHLEarth.cpp
Andreas
Hi all,
I'm trying to do some simple bumpmapping with GLSL, but I can't figure
out how to get multitexturing to work. Simply adding more
texturechunks to the material does not work for me, as I always get
the first texture bound to all my samplers.
I can't find anyplace where osg does getUniformLocation/setUniform for
the samplers, so one assumption would be that, since they are never
intialized with the actual texture unit, always have the value 0 (or
GL_TEXTURE_0), which would explain my results, but then we have a
rather major deficieny in opensg, which makes me worried.
Has anyone else done this? Any hints?
Best regards,
/Marcus
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