[osg-users] setAttribute / Material issue

[Robert Osfield]

Hi Paul,

Typically when we see inconsistent colouring/lighting in a scene it's due
to missing vertex colour or normals on osg::Gemetry leaves in the scene
graph, with the shaders or fixed function pipeline relying upon there state
for rendering.  These missing values will be filled in by any previous
osg:Geometry that happens to set them, but as the ordering can change from
frame to frame/changes in view direction we see flickering between various
possible accidentally inherited settings.

Have a look at your subgraphs to make sure they all set their vertex arrays
correctly.

Robert.
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