ComfyUI-Equirect

ComfyUI nodes for conversion between equirectangular panoramas and cubemaps.

Features

• EquirectToCubemapNode: Convert equirectangular panoramas to 6 cubemap faces
• CubemapToEquirectNode: Convert 6 cubemap faces back to equirectangular panoramas

Installation

1. Clone this repository to your ComfyUI custom_nodes directory:

   cd ComfyUI/custom_nodes
   git clone https://github.com/yourusername/ComfyUI-Equirect.git
   

2. Install dependencies:

   cd ComfyUI-Equirect
   pip install -r requirements.txt
   

Usage

EquirectToCubemapNode (Equirectangular to Cubemap)

Inputs:

• equirect_image: Equirectangular panorama input (2:1 aspect ratio)
• face_size: Size of the output cubemap faces
• fov: Field of view angle (default: 90 degrees)

Outputs:

• front, right, back, left, top, bottom: 6 cubemap faces

CubemapToEquirectNode (Cubemap to Equirectangular)

Inputs:

• front, right, back, left, top, bottom: 6 cubemap faces
• output_height: Height of the output equirectangular image (width will be automatically set to twice the height)

Outputs:

• equirect_image: Converted equirectangular panorama

Technical Notes

• Uses py360convert library for high-quality conversion when available
• Automatically falls back to custom implementation if the library is not available
• Supports batch processing and maintains correct image formats

Dependencies

• torch
• numpy
• pillow
• opencv-python
• py360convert

Parameters

• Input Image: Equirectangular panorama image with 2:1 aspect ratio
• Face Size: Edge length for each cubemap face (default: 512, range: 64-4096)
• Field of View: FOV angle for each face (default: 90, range: 60-120)

System Requirements

• ComfyUI
• Python 3.7+
• PyTorch
• Pillow (PIL)
• NumPy

License

This project is licensed under the MIT License - see the LICENSE file for details