ComfyUI Quick Latent

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A streamlined ComfyUI custom node for creating latent tensors from direct output-size presets.

Quick Latent lets you choose an orientation, ratio family, curated output size, or custom width and height, then outputs the matching width, height, latent tensor, and batch size.

V2.0 Breaking Change

V2.0 removes the scale factor control and the SCALE output. Selected dimensions are now the direct output size. Existing V1 workflows should be reselected after upgrading.

Features

Feature	Description
Direct presets	Choose explicit output sizes such as 1024 x 1536, 1920 x 1080, or 2048 x 2048.
Ratio families	Supports 1:1, 2:3, 3:4, 16:9, and Custom.
Orientation	Switches labels and swaps preset/custom width and height between portrait and landscape.
Custom size	Enter direct output width and height. Input values are preserved, clamped to 512 through 4096, then rounded down to multiples of 8 for the actual output.
Batch size	Create latent batches from 1 to 64.
Custom UI	Uses a compact canvas UI inside the ComfyUI node.

Installation

Via ComfyUI Manager

Search for comfyui-quick-latent in ComfyUI Manager and click Install.

Restart ComfyUI after installation.

Manual Installation

Clone this repository into your ComfyUI custom nodes directory:

cd ComfyUI/custom_nodes
git clone https://github.com/Zhen-Bo/comfyui-quick-latent.git

Restart ComfyUI after installation.

Usage

Add the Quick Latent node from the QuickLatent category.

Use the node controls to select:

• Orientation: Portrait or Landscape
• Aspect ratio: 1:1, 2:3, 3:4, 16:9, or Custom
• Preset resolution or custom width and height
• Batch size

The node returns a zero-filled latent tensor and matching dimension values for downstream ComfyUI workflows. Output width and height are the direct 8-aligned latent image dimensions used by the sampler.

For the full V2.0 preset table, see Dimension Reference.

Outputs

Output	Type	Description
OUTPUT_WIDTH	INT	Actual 8-aligned latent image width.
OUTPUT_HEIGHT	INT	Actual 8-aligned latent image height.
LATENT	LATENT	Zero-filled latent tensor.
BATCH_SIZE	INT	Selected batch size.

License

MIT License. See LICENSE.