prepare

Required stages: vertex, fragment
Optional stages: geometry, compute
Output buffers: colortex
Valid suffixes: no suffix, 1-99

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A composite-style pass which runs after the shadow pass but before the gbuffers programs. It can be used to set up any data needed for the gbuffers programs. Like other composite-style programs, it renders a single fullscreen quad over the resolution of the buffer(s) it writes to.