[osg-users] Large number of occluder nodes

Robert Osfield robert.osfield at gmail.com
Wed May 30 22:26:28 PDT 2018

Hi David,

Which type of occluder are you talking about?  osg::OccluderNode or
osg::OcclussionQueryNode?  They are very different.

Also what is performance like without the occluders?


On 30 May 2018 at 23:10, David Heitbrink <david-heitbrink at uiowa.edu> wrote:
> I have a scene with a large number of occluder nodes. Its a large city scene, and most of the nodes are relatively small, like 10-50 meters wide, like 10-30 meters tall, in a database that is maybe 20 km x 20 km. I have 1000's of these. They are basically extracted semi-automatically. Most of them are simple just a 4 points.
> My cull time is getting up to the 40ms range. They really help in some regions, but I really don't think I need them being considered during the culling stage for anything node that is more than about 5000 meters out.
> What is the best way of managing occluder node lode?
> ------------------
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> http://forum.openscenegraph.org/viewtopic.php?p=73898#73898
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