Anton Lauridsen wrote: > I have - by using the osgTerrain example code - constructed a heightmap based > terraintile. > I'm having two issues, the terrain is ridiculously slow, showing about 15 fps > for a 1024x1024 map. showing a huge amount of time in the draw phase, what > have I done wrong?
Is this a single tile? 1024x1024x2 is two million polys. It's usually best to break this up into smaller tiles. OSGDEM/VPB uses 64x64 tiles, and LODs each group of four of those into a smaller 64x64 tile, etc, etc. > The other, which surprises me a bit, is how the osgTerrain::ContourLayer is > applied, I would have expected the ContourLayer to apply to the Z axis rather > than the X axis as can be seen on the attached image, what have I done wrong > there? I am not familiar with this class. Is this actually terrain data? If so, why are you building it by hand as opposed to letting VPB do it and manage the LOD for you? > Thank you! > Cheers, > Anton -- Chris 'Xenon' Hanson, omo sanza lettere Xenon AlphaPixel.com PixelSense Landsat processing now available! http://www.alphapixel.com/demos/ "There is no Truth. There is only Perception. To Perceive is to Exist." - Xen _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
