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BytePlusBytePlusBytePlus ModelArk for ComfyUI

Prop Sheet

Template
Prop Sheet, in the ComfyUI template browser under BytePlus
Workflow file
Prop Sheet.json
BytePlus nodes
Seedream 4.5 & 5.0
Keys needed
ModelArk API key
Also uses
Format Text, MarkdownNote, Preview as Text, Save Image, Text (Multiline) (built into ComfyUI)

What it makes

Section titled “What it makes”

One image of a single object on a seamless background, shown whole and centered with room around it. It is for objects that a character holds, that appear in several shots or that the story depends on. The template makes an antique brass pocket compass, open, on white. The background is plain on purpose, so that it does not leak into later images or videos.

The workflow

Section titled “The workflow”
The Prop Sheet template in four groups: five text boxes, a Format Text node with a prompt preview, and Seedream with Save Image
Describe the prop and its look, build the prompt, then paint and save.
  1. Prop (change me) describes the object: its shape, real-world size in words, materials, two to four identifying details and its state, such as open or closed.
  2. Background (white or gray) sets the backdrop. White is the default. Use gray when the object is white, silver, chrome or clear, because its outline would be lost on white.
  3. Style, Lighting and Composition set the photographic look, the light and the view. The default view is one three-quarter hero view.
  4. Build the prop prompt (Format Text, a ComfyUI core node) puts the five texts into one prompt and adds the fixed quality line and exclusions. Prompt sent to Seedream shows it.
  5. Seedream 4.5 & 5.0 runs seedream 5.0 pro at (2K) 2048x2048 (1:1), and Save Image writes the result to BytePlus/Image/prop_sheet.

Run it

Section titled “Run it”
  1. Add your ModelArk API key in Settings → BytePlus if you have not yet (API keys). This template needs no other key.
  2. Open the template browser and choose Prop Sheet under BytePlus.
  3. Rewrite Prop (change me) and make the object name in Background match it.
  4. Press Run. Check that the whole object is in frame and that nothing looks like writing.

Settings worth changing

Section titled “Settings worth changing”
  • Prop (change me): start with “Prop reference of one” and the object, and say how many there are. Describe one state only.
  • Background (white or gray): keep the faint contact shadow in the sentence, and change white to light-gray for pale or shiny objects.
  • Composition: for a large or mechanical object, use three panels in one row instead: a three-quarter view, a side profile and a close-up of one detail. The note in the template has the wording. Choose a 16:9 size_preset for it.
  • Text on the object: the fixed exclusions ask for no readable text, letters or numbers, because invented lettering tends to look wrong. If a label matters, add it afterwards or use the real product photo.
  • seed: set it to fixed to rerun the same image without billing again.

Example result

Section titled “Example result”
An open antique brass pocket compass with a cream dial, a blue needle and a ring at the top, on a plain white background
Example result: 2048x2048, one compass, lid open.

One open brass compass, whole and centered on white, with a ring at the top, a small crown, a blue needle and a cream dial whose cardinal points are small triangles instead of letters. Check that the shape and details are right, that nothing is cropped, and that no stray marks look like writing. Make a separate sheet for each state the object needs on camera.

Time and cost

Section titled “Time and cost”

The template bills one Seedream image per run. The seed control is set to randomize, so every run paints a new image and bills again. Set it to fixed and ComfyUI reuses the cached result of an unchanged workflow without billing.

Section titled “Related”