AdvancedReadonlyinputThe image this effect reads: the scene, or the result of the step before it
ReadonlyopaqueCopy of the scene's colour after the opaque draw, with mips; the image glass refracts
ReadonlyopaqueCopy of the scene's depth after the opaque draw
ReadonlyoutputWhere this effect's final image must go; pass it as a FullscreenPass's writes
null when the effect is the last step and draws straight to the view's target.
ReadonlyrendererRenderer the graph is being built for
What PostEffect#build receives: the PassContext plus this effect's input and output
Anything else, such as the scene depth, comes from the graph.