Which stage inputs a graph may name (§60 "vertex attributes"), and therefore which emitter validates it. "surface" graphs shade a Renderable; "screen" graphs shade a §70 full-screen pass and have no geometry at all.
"surface"
Renderable
"screen"
Which stage inputs a graph may name (§60 "vertex attributes"), and therefore which emitter validates it.
"surface"graphs shade aRenderable;"screen"graphs shade a §70 full-screen pass and have no geometry at all.