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Re: qc leopard compatibility and anti aliasing?

Hi Roger

Can anyone fill me in on what happens if you use new features of a node in leopard that do not exist in tiger?
Quartz Composer will look for the name of the patch and load and none of the patch's names have changed since Leopard. Likewise, connected ports are connected by reference, so if the port or patch doesn't exist it will complain or log a message but continue to run. It is the same thing for settings, if the runtime doesn't support a setting it will not look for it. You will get the old QC behavior.

also, is it now possible in leopard to enable full scene anti aliasing in quartz composer? eg not just billboard edges but font edges, sphere renderer edges etc etc? since all recent graphics cards support this I'd hope that if the GL context that's being requested asks for hardware AA QC should respect that? is that possible?

There is no setting for this in Quartz Composer. I believe if you set up a QCRenderer with an anti-aliased GL context it will work, but someone may need to verify that. Frequently this will cost a lot more video memory, and may throw off the accuracy of images/text. You may be better off forcing super sampling on the 3d objects that require it by rendering into a Render In Image at double the size (now possible because the width and height are exposed in Render in Image).

Troy
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