Hi Aaron, I have just done a first pass review on your transform feedback example and OSG integration and feel that we can probably come up with a cleaner way of integration and properly supporting transform feedback. One thing we could do is integrate the example as a work in progress and steadily refactor it/core OSG to better suppport transform feedback.
It may be worth a general discussion on the osg-users mailing list, either before after I merge the example/core modifications. Discussion of usage cases is probably a good way to go about things i.e. discuss what tasks you want to use transform feedback on then move on to how one might ideally support this with the scene graph. Previously my assumption is that we'd probably need to go the route of supporting transform feedback in osg::Camera render targets in some way coupled with sync'ing this PBO/VBO assignment/managment. Robert. On 6 October 2012 19:57, Aaron Hagan <[email protected]> wrote: > The submitted changes demonstrate the opengl Transform Feedback > functionality. (See http://www.opengl.org/wiki/Transform_Feedback for a > description of the Transform Feedback). > > A simple example is included to transform a simple square mesh and write the > vertices to a buffer object, than render the buffer object. The example can > be built upon for more complex applications. > > Aaron > > > _______________________________________________ > osg-submissions mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-submissions-openscenegraph.org > _______________________________________________ osg-submissions mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-submissions-openscenegraph.org
