HookProcessingChains - What they do, how to use them.
This is a list of
Screen's builtin functions that can be used as
processing slots in a hook chain of
Screen:
'Builtin:IdentityBlit' - Perform a (nearly) one-to-one blit of the input
buffer into the output buffer, using
Psychtoolbox/PsychGLImageProcessing/HookProcessingChains.m