Hi Christoph, I could be wrong about this since it's been awhile since I looked into it, but the small feature culling was a subset of the occlusion culling methods. Just like the occlusion culling process it relied on the # of pixels an object occupies to determine if something should be done. You could always use the pixel threshold of occlusion culling to cull out objects less than a certain number of pixels but you could also see some "popping" or artifacts as large objects become visible from behind others. PruneGraphOP dramatically affects the scenegraph and is often used as a preprocess to displaying a model for the first time.
Hope this helps point you in the right direction. Cheers E. From: Christoph Schäfer [mailto:cschaefe...@googlemail.com] Sent: Wednesday, May 12, 2010 3:18 PM To: opensg-users@lists.sourceforge.net Subject: Re: [Opensg-users] Small feature culling? Hi Constantin, I tried out the OSG::PruneGraphOP. After traversing the model root small geometries are culled, but it seems like they are culled in a static way, e.g. they don't show up again if you move closer to where they should be in the model. In fact it looks like they were deleted from the model. What I did is basically something like op->traverse( modelRoot ) in each render call. Is there any way to get a dynamic behavior or is it diys ;-) ? Cheers, Christoph Am 12.05.2010 10:46, schrieb Constantin Müller: Hi Christoph, I can't tell you if it works, but i read in the 1.8 Tutorial and there is mentioned a Graph Operator called "PruneGraphOp". I think this could be what you are searching for. Hope it helps, Constantin 2010/5/12 Christoph Schäfer <cschaefe...@googlemail.com<mailto:cschaefe...@googlemail.com>> Hi, iirc there used to be a small feature culling setting in OpenSG 1.8, but I can't find anything in OpenSG 2.x? Is it just not yet ported or has it been droped? Cheers, Christoph ------------------------------------------------------------------------------ _______________________________________________ Opensg-users mailing list Opensg-users@lists.sourceforge.net<mailto:Opensg-users@lists.sourceforge.net> https://lists.sourceforge.net/lists/listinfo/opensg-users ------------------------------------------------------------------------------ _______________________________________________ Opensg-users mailing list Opensg-users@lists.sourceforge.net<mailto:Opensg-users@lists.sourceforge.net> https://lists.sourceforge.net/lists/listinfo/opensg-users
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