The Direct node now dispatches: "standard" (default) runs the new pipeline,
"legacy" runs the frozen pre-2.0 one. Measured through the node with a
recording sampler, 20 steps:
standard, 1 stage 1 call x 20 steps, from sigma 14.61
standard, 2 stages 2 calls x 10 steps, from 14.61 then 1.48
standard, denoise 0.6 1 call x 20 steps, from 2.23
standard, 3 injections 4 calls x 5 steps, 14.61 / 3.87 / 1.48 / 0.60
legacy, 2 stages 2 calls, each rebuilding a full schedule
The 1.48 is the fix: stages continue one trajectory instead of restarting at
maximum noise, where flow models discard the previous stage entirely. The 2.23
is denoise finally reaching the schedule.
Also on the node:
- sequential_distribution, injection_distribution and fast_high_channel_noise
become real optional inputs. As V1 `hidden` tuple inputs ComfyUI never
delivered them, so they were stuck at their defaults.
- the debug/visualisation hidden inputs are gone; they drove stub no-ops.
- IS_CHANGED is removed: it only restated widget values that are already part
of the cache key, and would have rejected the new input.
- new widgets are appended last, so saved workflows keep their widget order.
web/src/sampling_mode_migration.ts switches nodes loaded from pre-2.0
workflows to "legacy", recognising them by the absence of the snk_version
property, so existing seeds keep reproducing.
186 Python tests and 85 web tests pass; the 11 legacy goldens now exercise the
legacy branch through this dispatch.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
