[osg-users] Picking / Selection when using Vertex / Geometry Shader

2010-06-03 Thread Christiansen, Brad
Hi, I am looking changing the implementation used for rendering a (reasonably) large number of bill boarded icons. I am currently using one Autotransform as the parent for each icon. This is simple but performance falls dramatically as the number of icons rises to 1000+. I have written a vertex

Re: [osg-users] Picking / Selection when using Vertex / Geometry Shader

2010-06-03 Thread Jean-Sébastien Guay
Hi Brad, What is the best way for picking / selecting the quads under the mouse cursor when the location of the vertices is calculated in a vertex shader? When I used the fixed function pipeline I could simply using OSGs intersection utilities for the picking, this will obviously no longer work.