Hum... To come back to the subject, here is my advice on how to optimize paged terrains rendering. :)
- First open to the DatabasePager.cpp file and take a look at all the env variables available. - Now play with them. :) If you have a single core CPU with an ATI card, set an high priority for the database thread. With a multi core CPU you can set it to the minimum priority. - If you have an ATI card, use VertexArrays instead of displaylists or VBO. Now if it's the rendering part the longer, it's maybe a PagedLOD configuration problem, like setting them on PIXEL_SIZE_ON_SCREEN instead of DISTANCE_FROM_EYE_POINT mode. I really don't know how VTB (or osgdem) set them. Maybe the best way to play with there configuration is to set a ReadNode callback and try to modify the settings when they are loaded. Good luck ! -- Serge Lages http://www.tharsis-software.com
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