HI Antoine, You explanation of confuses me as it may well be trivial what you want to do, but I really can't tell.
Are we talking about a single scene graph that you simple want to render with different effects/shaders? If so then just have change uniforms or shaders to get the result you want. From OSG-3.4 onwards there is #pragma(tic) shader composition support built in which allows you to toggle different code paths in the shaders by changing global #define's via inherited osg::StateSet. This topic has been discussed many times here on the osg-users mailing list/forum so have a look through the archives. Also look at the osgshadercomposition example. Or we talking about two separate subgraphs that you want to switch between? If so then simple decorate the two subgraphs with an osg::Swtich. Robert. On 20 February 2018 at 13:53, Antoine Rennuit <antoinerenn...@hotmail.com> wrote: > Dear OSG forum, > > I have a dense mesh for which I have computed a per vertex curvature. Now I > need to capture a snapshot of this mesh colorized according to the curvature > (something like the bunny image attached to the message). This is only a > snapshot to be stored into an array and I do not intend to display the > curvature-highlighted mesh (well this could be a temporary display, but > definitely not a permanent one). > > I was thinking of having a primary scene for my usual display and a secondary > scene for the curvature-highlighted render, and then swap displays according > to my needs. Is there a way to achieve such a behavior? > > Thanks a lot, > > Antoine. > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=72969#72969 > > > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
