2012/4/3 Robert Osfield <[email protected]>: > Having mixed front face/back face within a single subgraph is not > ideal. I would generally recommend that one should build/optimize a > scene graph so that the as much work as possible is done as > pre-processing/optimization/scene graph construction stage that > minimizes the number of state changes - in your case avoid if possible > all the osg::FrontFace entries in a subgraph by flipping the actual > triangles so that they are all consistent in orientation i.e. all > front face or all back face.
Well yes - but this is not possible when the same triangles are rendered with both orientations (i.e. when they can be reached through parental paths with both positive and negative determinants in the MVM)? The only thing one could do would be to duplicate the geometry... which is not really an optimization. Felix _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
