[osg-users] Culling traversal

[benedikt naessens]

I have an OSG tree, where I want some nodes to be visible and some hidden. Currently, I set the visibility status with nodemasks; I don't want to use switches, because I want to set the visibility of nodes dynamically (thus, otherwise, each node would need a switch).

I have a situation where I want to hide a node X and all its children, with the exception of one its children. I made an NodeVisitor which adapts all the nodemasks of the node X and all its children. I know that if you want to hide the node and its children, basically you only need to change the nodemask of node X, because the cull visitor stops at node X. But, this is obviously not the behaviour I want.

How can I change the behaviour of the CullVisitor, so I doesn't stop at nodes with the "hidden" nodemask ? I use setInheritanceMask ( with inheritancemask = osg::CullSettings::ALL_VARIABLES & ~osg::CullSettings::CULL_MASK) and setCullMask, but it seems that does something different. I am a bit confused of how inheritance masks work.

Do I have to set the traversal mask of the cull visitor ? How do I apply then a new cull visitor on a camera (or viewer ...) ?

Thank you!

Benedikt.

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http://forum.openscenegraph.org/viewtopic.php?p=30522#30522

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