Re: [osg-users] Retrieving occlusion query results prior to swap(was: RE: Need a post-swap traversal)

2007-10-23 Thread Robert Osfield
On 10/22/07, Paul Martz [EMAIL PROTECTED] wrote: Hm. I really want all the occlusion queries to be done after all other normal rendering has finished (to maximize the chance for occlusion to occur). So it seems I really want a POST RenderStage that issues the queries, then iterates looking for

Re: [osg-users] Retrieving occlusion query results prior to swap(was: RE: Need a post-swap traversal)

2007-10-22 Thread Paul Martz
Thanks for the note, Robert -- The high level approach does suffer from a round trip to the graphics card - you still have to wait till all the queries are returned before you can dispatch the last bit of data into the OpenGL fifo. Claiming this eliminates the latency is rather

Re: [osg-users] Retrieving occlusion query results prior to swap(was: RE: Need a post-swap traversal)

2007-10-22 Thread Bob Kuehne
bob kuehne - [EMAIL PROTECTED] - 734-834-2696 On Oct 22, 2007, at 6:47 PM, Paul Martz [EMAIL PROTECTED] wrote: Thanks for the note, Robert -- The high level approach does suffer from a round trip to the graphics card - you still have to wait till all the queries are returned before you