Destination-pixel rectangle for an EffectRenderPass (R-6 follow-up).
Origin is the destination surface's bottom-left, +Y up (§7a), in the
surface's own pixels — a render target's width/height, or the drawing
buffer when the pass has no target. Omitted on the pass means the
whole destination, which is the pre-follow-up behaviour.
Destination-pixel rectangle for an EffectRenderPass (R-6 follow-up).
Origin is the destination surface's bottom-left, +Y up (§7a), in the surface's own pixels — a render target's width/height, or the drawing buffer when the pass has no
target. Omitted on the pass means the whole destination, which is the pre-follow-up behaviour.