Andrew Cunningham wrote: > Hi, > I need to label or annotate large numbers of 3D locations with a short label > like a number. Think possibly 100,000+ locations or nodes (for example, > represented as small cubes). I naively used osg::Text to create labels and > ended up consuming 100's of MB of memory. > This seems like a case where I should perhaps derive my own drawable (or > geode?) perhaps and draw things 'on the fly' rather than creating huge > numbers of objects. The old trade-off of memory vs speed of drawing. Any > suggestions from those who have been there before??
I think a GLSL shader could do this on-the-fly efficiently. I think there's an example of such a text shader in The Orange Book. > Thanks > Andrew -- 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 [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
