OSG Intersector thread safe?

[Chris Hanson]

Is there any reference material that indicates positively whether osg Intersection tests are thread safe to be run in parallel with each other, and/or safe to run in parallel with cull/draw as long as the graph they're visiting isn't being changed?

I think I know the answers, but I wanted confirmation from someone else with experience.

--

Chris 'Xenon' Hanson, omo sanza lettere. Xe...@AlphaPixel.com http://www.alphapixel.com/

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[OpenSceneGraph Users]

Hi Chris,

On Fri, 20 Mar 2020 at 04:55, OpenSceneGraph Users <osg-...@lists.openscenegraph.org> wrote:

Is there any reference material that indicates positively whether osg Intersection tests are thread safe to be run in parallel with each other, and/or safe to run in parallel with cull/draw as long as the graph they're visiting isn't being changed?

I think I know the answers, but I wanted confirmation from someone else with experience.

It should be possible to run intersection tests in parallel, you just need to have an osg::IntersectionVisitor per thread.  The scene graph itself should be left unchanged by the traversal.

Cheers,

Robert.