ComfyUI Node for Zero-1-to-3: Zero-shot One Image to 3D Object

中文

This is an unofficial porting of Zero123 https://zero123.cs.columbia.edu/ for ComfyUI, Zero123 is a framework for changing the camera viewpoint of an object given just a single RGB image.

This porting enable you generate 3D rotated image in ComfyUI.

Quickly Start

After install this node, download the sample workflow to start trying.

If you have any questions or suggestions, please don’t hesitate to leave them in the issue tracker.

Node and Workflow

Node Zero123: Image Rotate in 3D

Node Zero123: Image Preprocess

PREREQUISITES

INPUT image must square (width=height), otherwise, this node will automatically trans it forcely.

INPUT image should be an object with white background, which means you need preprocess of image (use `Zero123: Image Preprocess).

OUTPUT image only support 256x256 (fixed) currently, you can upscale it later.

Explains

Node Zero123: Image Rotate in 3D Input and Output

INPUT

_image_ : input image, should be an square image, and an object with white backgroup.

_polar_angle_ : angle of x axis, turn up or down

<0.0: turn up

>0.0: turn down

_azimuth_angle_ : angle of y axis, turn left or right

<0.0: turn left

>0.0: turn right

_scale_ : z axis, far away or near;

>1.0 : means bigger, or near;

0<1<1.0 : means smaller, or far away

1.0 : mean no change

_steps_ : 75 is the default value by original zero123 repo, do not smaller then 75.

_batch_size_ : how many images you do like to generated.

_fp16_ : whether to load model in fp16. enable it can speed up and save GPU mem.

_checkpoint_ : the model you select, zero123-xl is the lates one, and stable-zero123claim to be the best, but licences required for commercially use.

_height_ : output height, fix to 256, information only

_width_ : output width, fix to 256, information only

_sampler_ : cannot change, information only

_scheduler_ : cannot change, information only

OUTPUT

_images_ : the output images

Node Zero123: Image Preprocess Input and Output

INPUT

_image_ : the original input image.

_mask_ : the mask of the image.

_margin_ : the percentage(%) margin of output image.

OUTPUT

_image_ : the processed white background, and square version input image with subject in center.

Tips

for proprecess image, segment out the subject, and remove all backgroup.

use image corp to focus the main subject, and make a squre image

try multi images and select the best one

upscale for final usage.

Installation

By ComfyUI Manager

Customer Nodes

search zero123 and select this repo, install it.

Models

search zero123 and install the model you like, such as zero123-xl.ckpt and stable-zero123 (licences required for commercially).

Manually Installation

Customer Nodes

cd ComfyUI/custom_nodes
git clone https://github.com/kealiu/ComfyUI-Zero123-Porting.git
cd ComfyUI-Zero123-Porting
pip install -r requirements.txt

And then, restart ComfyUI, and refresh your browser.

Models

check out model-list.json for modules download URL, their should be place under ComfyUI/models/checkpoints/zero123/

Zero123 related works

zero123 by zero123, the original one. This repo porting from this one.

stable-zero123 by StableAI, which train models with more data and claim to have better output.

zero123++ by Sudo AI, which opensource a model that always gen image with fix angles.

Thanks to

Zero-1-to-3: Zero-shot One Image to 3D Object, which be able to learn control mechanisms that manipulate the camera viewpoint in large-scale diffusion models

@misc{liu2023zero1to3,
      title={Zero-1-to-3: Zero-shot One Image to 3D Object}, 
      author={Ruoshi Liu and Rundi Wu and Basile Van Hoorick and Pavel Tokmakov and Sergey Zakharov and Carl Vondrick},
      year={2023},
      eprint={2303.11328},
      archivePrefix={arXiv},
      primaryClass={cs.CV}
}