Hi Dan, There isn't any built in mechanism for highlight specific triangles, being a general purpose library the OSG doesn't try to implement all the various ways that users might wish to use it.
The best I can recommend is to create a second osg::Geometry which just contains the triangles of interest, you could share the vertex arrays of the original osg::Geometry though. Robert. On 1/11/07, Gilbert, Daniel R. <[EMAIL PROTECTED]> wrote:
Hello All, I need to come up with a mechanism for highlighting triangles which have been selected via a mouse pick or polytope intersection. The osgFX::Scribe effect demonstrated in various examples work well for the entire node, but I don't think this will work for my purposes. Has anyone attempted to highlight triangles dynamically as the mouse moves across the model? Would this involve copying the selected triangles into a separate geode and rendering with PolygonOffset similar to osgFX::Scribe? Any suggestions will be greatly appreciated, as I'm sure someone has a more straight-forward/elegant solution. Thanks, -- Dan _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
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