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ComfyDeploy: How Random Size works in ComfyUI?

What is Random Size?

A ComfyUI custom node that randomly selects a height and width pair from a list in a config file

How to install it in ComfyDeploy?

Head over to the machine page

  1. Click on the "Create a new machine" button
  2. Select the Edit build steps
  3. Add a new step -> Custom Node
  4. Search for Random Size and select it
  5. Close the build step dialig and then click on the "Save" button to rebuild the machine

ComfyUI-RandomSize

A ComfyUI custom node that randomly selects a height and width pair from a list in a config file. The core use is to provide variety in generations of large numbers of images at once.

Presets included:

  • 9 SD 1.5-friendly resolutions.
  • 9 SDXL-friendly resulotions
  • 9 Resolutions centered around 512x512
  • 9 around 640x640
  • 13 around 768x768
  • 15 around 896x896
  • 17 around 1024x1024

Install

cd [path to ComfyUI]/custom_nodes
git clone https://github.com/JerryOrbachJr/ComfyUI-RandomSize.git

Usage

  • Select a seed. The seed is the index of a size in the yaml file, startting with 0. The same seed will always give the same output. Set control after generate to fix to fix the output.
  • Control After(/Before) Generate: set to increment, decrement, or random to get a random size from the preset each generation.
  • Select a preset. The default preset is SD 1.5 if none is chosen.
  • Run your queue.

Adding Presets

  • Add a text file with name of your choosing and extension ".yaml" in [path to ComfyUI]/custom_nodes/ComfyUI-RandomSize/sizes/custom
  • The first line of your file needs to be sizes:
  • Every successive line should be a size in the format - WIDTHxHEIGHT replacing WIDTH and HEIGHT with pixel numbers e.g. - 768x512
  • Restart Comfy to see your Preset in the list