Would there be a big performance difference between using a TextureBuffer Object and a UniformBuffer object?
Thanks, Sam On Fri, Apr 15, 2016 at 1:15 PM, sam <brko...@gmail.com> wrote: > Doh! Thanks, Glenn. Unfortunately I still have some holes in the map but > its starting to look considerably better. I will definitely looking to > using a TextureBuffer. > > On Fri, Apr 15, 2016 at 12:50 PM, Glenn Waldron <gwald...@gmail.com> > wrote: > >> Sam, >> I think you are not calling setNumElements() on your uniform array. You >> could also do that in the osg::Uniform constructor. >> >> Anyway, a uniform array of matrices is going to be limiting in terms of >> scale and speed -- I'd recommend a buffer object instead. (osgEarth uses an >> osg::TextureBuffer.) >> >> >> Glenn Waldron >> >> On Fri, Apr 15, 2016 at 2:35 PM, sam <brko...@gmail.com> wrote: >> >>> Hi All, >>> >>> I'm having some trouble getting my code to use hardware instancing. I've >>> referenced OSGEarth, DrawInstanced example, and a few different code >>> samples on the web. I've gotten pretty close but I seem to be at a bit of >>> an impasse. >>> >>> This screenshot shows what the map looks like with the default rendering: >>> >>> http://imgur.com/fKvunfd >>> >>> This screenshot shows what the map looks like after I apply my instance >>> rendering code to it: >>> >>> http://imgur.com/zZCzurr >>> >>> The map is composed of a lot of little nodes. I figured instanced >>> rendering would be helpful in this case. The map has ~4000 individual >>> nodes. Two of the nodes are repeated 465 and 266 times. I have trimmed down >>> my code and it is posted here: >>> >>> http://pastebin.com/ifSVSzD6 >>> >>> From what it looks like. Its rendering one copy of every nodes but not >>> anymore that that. I have commented out lines 215 to 224 as it doesn't work >>> at all. Any insight or help would be greatly appreciated. >>> >>> Thanks, Sam >>> >>> _______________________________________________ >>> osg-users mailing list >>> osg-users@lists.openscenegraph.org >>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >>> >>> >> >> _______________________________________________ >> osg-users mailing list >> osg-users@lists.openscenegraph.org >> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >> >> >
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