On Fri, Jul 20, 2012 at 9:59 AM, James Turner <zakal...@mac.com> wrote: > > On 20 Jul 2012, at 07:22, Tim Moore wrote: > >> We could use the stencil buffer without copying anything: render the >> near scene first, setting stencil bits, then enable the stencil test >> for the far scene. I believe that the stencil test has been extremely >> fast for years. > > Oooh, yes - I was forgetting the cameras are rendering to the same buffers. > > That seems like some low-hanging fruit indeed! >
The problem with this approach just became all too clear as I was checking out the PAF dc-3 (wow wow wow!): transparency. It can't handle transparent objects in the near scene -- e.g., the windshield -- without using either alpha bits in the frame buffer or doing a third pass for near transparent objects. Historically we have avoided frame buffer alpha as being exotic and /or slow; I don't know if we want to move in that direction. Tim > James > > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. Discussions > will include endpoint security, mobile security and the latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Flightgear-devel mailing list > Flightgear-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/flightgear-devel ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
