It seems that array uniforms in shaders on OS X are reported with
different names than the ones in Linux and Windows, at least with the
Nvidia drivers.
For example.
The uniform
uniform vec4 boneTransforms[72];
would be reported to be named "boneTransforms" on linux and windows,
but as "boneTransforms[0]" on Mac OS X. Using straight OpenGL, I can
still set "boneTransforms" and it will work.
In OSG, I can't set "boneTransforms" because OSG queries the names of
the uniforms and gets "boneTransforms[0]" so it thinks that
"boneTransforms" is not a valid uniform. This means that I have to
ifdef the name to be cross-platform, but it seems that I should still
be able to set "boneTransforms" in OS X since the Open GL api allows
it to work. Would it be reasonable to change OSG to strip off the
"[0]" at the end of names or to check both in OSG?
--
David Guthrie
Research Software Engineer
Alion Science and Technology
BMH Operation
5365 Robin Hood Road
Norfolk, VA 23513
Tel: 757-857-5670 x 269
[EMAIL PROTECTED]
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