I'm trying to draw some translucent colored triangles on top of some textured triangles and the triangle color does not appear to be working consistently. I'm setting the osg::Geometry color array and its binding to BIND_PER_PRIMITIVE_SET and adding one color to the array per primitive set. However, what I'm seeing is that the triangles just look black - they are transparent though - so the color arrays transparency seems to be having an effect, but the color does not. However, if I rotate the camera around a little and position it just right then the color starts taking effect, which makes me think that some other branch of scene graph is setting some state that is preventing the color array from being used correctly. Can anyone provide me some hints as to what to look for? Here's the states that I am setting on the colored geometry:
GL_COLOR_MATERIAL - OFF | PROTECTED GL_CULL_MODE - OFF | PROTECTED GL_LIGHTING - OFF | PROTECTED GL_BLEND - ON | PROTECTED I'm kind of stumped as to what I'm doing wrong, so any help would be appreciated. Thanks. Alex
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