Hi Mike, On 4/11/07, Mike Wittman <[EMAIL PROTECTED]> wrote:
1. OpenGL objects must be deleted by the (render) thread associated with their context. This is completely handled internally by OSG.
Yes this is correct.
2. OSG objects must be deleted in the main thread.
Objects can actually be deleted at any time in any thread as long as no other thread is still using that objects. ref_ptr<> does protect against deleting objects that are being used, but only does so if the code use them. The rendering backend doesn't use ref_ptr<> in all places for efficiency reasons, which is why in DrawThreadPerContext the DeleteHandler caches deletes to prevent the update thread deleting objects still being read by the drawing thread. However, in general one can assume that ref_ptr<>'s thread safe ref/unref will handle things just fine. Robert. _______________________________________________ osg-users mailing list osg-users@openscenegraph.net http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
