[osg-users] Best way to cull object hidden by a mountain

[Valerian Merkling]

Ok. Then I've a problem with my occlusionQuery node !

Here is how I tested :
- breakpoint in the OcclusionQueryNode::getNumPixels function
- configured OQN with a QueryFrameCount of 500 to see occluded node coming 

And the result is :
- occlusion working when a node is outside the camera field
- not working at all when occluded by textured HeightField when opacity is manager (setRenderingHint TRANSPARENT_BIN)
- working when removing the TRANSPARENT_BIN attribute on the heightField

I really need transparency. I think I can understand what is going on : the occlusion Query is made before the HeightField is rendered, even if the node I need to occlude is also in the transparent_bin.

Is there a way to make it work ?

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