Hi all, More integrated graphics woes for me today. I'm working with an Intel 945GM graphics card and trying to load a terrain database generated with --terrain. Robert, your suggestion of disabling VBO programatically worked great for getting the machine to stop crashing. For some reason, the machine only crashes if I loaded in some polygonal feature data as well as the terrain database unless I disable VBO.
The issue I'm facing now is that the performance of the terrain database is terrible on this machine. A database generated without the --terrain option works really well, but takes a long time to build. When I move around in my application or in osgviewer, I get huge frame hiccups (up to 2 seconds sometimes) when tiles are being paged in. The interesting thing is that this only happens if I have texturing turned on. If I hit 't' in osgviewer to disable texturing, tiles come in just fine. I've also noticed that if I turn texturing off for just the high resolution ortho imagery on my database (layer 0) but leave on my lower resolution map (layer 1) that thigns run smoothly. I've tried reducing the sample ratio as Robert has suggested using an osgTerrain::Terrain decorator as well, and this doesn't help the hiccups as they seem to be related to the textures. I suspected that I was maybe hitting a texture memory limit, but I don't understand why a database generated without the --terrain option would work well since they should be using the same imagery for the tiles. Does anyone have any more suggestions to try to get this amazing graphics card chugging along?:) Thanks for everyones help on this, Jason
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