Batch Prompt Crop Area

RegionalBatchPrompt exists to attach a different text prompt to each tile of a crop plan, so that when the upscaler redraws a region it can be told what that region actually contains - a face tile gets "sharp detailed face," a background tile gets "crisp landscape texture." That's the idea, and it's a good one, because a single global prompt is a blunt instrument for a tiled generative upscale.

Here's the honest part: this node encodes the conditioning into the crop list, but as of the current version the upscaler doesn't consume that per-tile conditioning - it builds its positive/negative from the CONDITIONING inputs you feed it directly. So don't wire this up expecting per-region prompt separation to actually change your sampling yet. Treat it as experimental plumbing, and check the pack's changelog/source before you bet a long render on it.

How it works

Three inputs, one output:

• clip - the CLIP model used for encoding the text (the tooltip says it plainly).
• prompt_list - a STRING containing your prompts, one per crop area, in the same order as the crop list. Newline-separated; each line becomes one tile's prompt.
• croparea_list - the LIST from Custom Crop Area (or a custom crop plan).

It tokenizes and encodes each prompt with the CLIP model and stores the conditioning onto each item of the crop list, then returns the same croparea_list (now carrying cond_p per region). The one hard rule: the number of prompts must equal the number of crop areas, or it raises "Length of prompt_list is not same as croparea_list, check nodes connection." That's the failure mode you'll actually hit, and it's always a count mismatch.

Install

It's in the pack:

cd ComfyUI/custom_nodes
git clone https://github.com/bbaudio-2025/ComfyUI-SuperUltimateVaceTools

Restart ComfyUI (or search "SuperUltimateVaceTools" in Manager). No extra dependencies.

Gotchas

• Count your prompts against your tiles. Four tiles, four lines. Every mismatch aborts with that error above, so it's self-diagnosing at least.
• Order matters and it's not labeled visually - prompt line 1 pairs with crop area 1, so keep the mapping in your head (or a comment group) or your face tile will get the background prompt.
• The node returns the crop list with conditioning attached but, per the version caveat above, the upscaler's actual sampling doesn't read it yet. You can verify quickly: connect it, run, and check whether changing one region's prompt changes only that region in the output. If it doesn't, you've confirmed what the source says.
• It needs a clip - if you're upscaling a VACE pipeline that never wired a CLIP through, you'll have to add one just to feed this node.

It's one of those nodes that reads like a feature and plays like a preview. Worth keeping an eye on - if the pack wires per-tile conditioning into the upscaler, this becomes the regional-prompt answer for VACE video upscaling. For now, it's a promise with a working encoder attached.