[jitter] Re: normalize shader

REMINDER: Please don't hit REPLY when creating a new thread. This makes the forums less readable, and makes it far less likely for anyone to actually find this thread in the future.

That said, here are some example shaders for doing quad-downsampling.  Included is a simple patch that uses averaging downsampling to perform basic anti-aliasing on a captured scene.

Best,
Andrew B.
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