A block node can be "like" a role (takes its settings) or "replace" it (its
links, place and settings too; LanPaint's sampler for the KSampler). $save is
the output node the picture reaches, past a stitch. Upscale blocks take an
upscale model this ComfyUI has; control blocks a ControlNet whose base fits the
canvas's model, and the picture to follow copied into the input folder. The
directory is grouped by job, a few words a block, to keep begin_task short.
Drop-down choices are read in both forms of ComfyUI's node list.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A Flash exam showed the crop-and-stitch repaint painting a whole new
person into the hand: the context margin was 1.2 where the distilled
workflow used 2.0, and the sampler kept denoise 1 and the whole
picture's prompt. A block can now set settings on the canvas nodes it
finds (roles: the sampler's denoise 0.75, in the same Ctrl+Z step),
and the block's answer and the repaint note tell the AI to set the
prompt to what belongs in the area. Retake: a natural hand.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
api/reference_blocks.py holds groups distilled from workflows that do
one job well: a repaint that crops around the mark, repaints at 1024
and stitches back (ComfyUI-Inpaint-CropAndStitch), the same with
built-in nodes only, and face and hand detailing (Impact Pack, the
detector models this ComfyUI has). begin_task hands the AI their
directory; add_nodes(block=...) builds one in one call. Its links name
roles web/modules/canvas_roles.js finds on the canvas by their sockets
(the sampler, its decode and save, what feeds an input upstream), so
canvas_wiring splices it into the workflow there; several samplers
need near_node_id, a missing pack names the pack and the stand-in.
The repaint note now points to the block. Checked on the test ComfyUI:
the repaint changed the marked area only, the detailer the face area.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
