Fullscreen tail composite (step 4).
Additive/glow emissive pass (step 1b).
Optional emitter depth-stamp pass (step 1c).
Exact front-layer pass (step 5).
Min-depth pre-pass (step 2).
Optional occlusion depth-stamp pass (step 5b).
Opaque pass (step 1), including any forced-opaque OIT occluders.
Always-on-top overlay pass (step 6).
Weighted-blended OIT tail pass (step 3).
Sum of the measured OIT segments above.
Per-segment GPU timings in milliseconds, populated when OITRenderPass.profile is enabled and the platform supports timer queries.
-1means "no result yet" (or unsupported).tailis the single weighted-blended OIT pass cost.