The two entry points the rollout was waiting on — prefill_text and forward_chunk
— are written, and with them the whole lane is ours. raven_causal.py is gone:
its pure parts (step rules, the audio sigma remap, the rollout loop) moved into
h3_causal.py, and its bridge to ComfyUI-MiniMax-H3-RAVEN-Streaming is deleted
along with the probe that hunted for that package in custom_nodes. Nothing has
to be installed for the mode to exist.
How a chunk is cut: ONE full-clip PackedLayout is built by ComfyUI's own
extra_conds, and every chunk is a SELECTION of its rows. So a chunk's RoPE
angles, modality tags and timestep classes are the ones a dense forward would
have given those same rows, and the keyframe pins and reference blocks keep the
rows upstream packed for them — which is what makes i2v and r2v work here
rather than be refused. Those rows are the prefix: cached once as chunk 0, so
media chunk i is cache chunk i + 1 and a sink of 2 pins the prompt plus the
opening shot.
A chunk is committed CLEAN — one extra forward at sigma 0 after its last step.
Caching the last denoising step's K/V would hand every later chunk a context
that still carries that step's noise.
Two failures that used to be a crash fifty blocks deep are now refusals by
name: a clip whose soundtrack does not cover its picture, and a clip too short
to have anything for a cache to remember.
Tests: 1800 python (+1 net; the RAVEN bridge's tests are gone, the plan,
session and real-model checks are new), 68 JS. The new upstream check drives
the REAL DiT at toy width through both lanes and confirms the safety property
holds: with no cache passed, the causal model is bit-identical to stock H3.
Not yet run on the rental.
digital-garbage
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