| <p align="center"><img src="assets/banner.png" alt="CKMoss-Image-RGBA" width="100%"></p> |
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| <p align="center"><b>Characters, illustrations, and little objects — ready for your composition.</b></p> |
| <p align="center"><a href="README.md">中文</a> · English · <a href="https://github.com/Chenkin-x/ComfyUI-CKMoss-Image-RGBA/blob/main/README.en.md">ComfyUI guide</a></p> |
| <p align="center">Author: <a href="https://github.com/chinoll">chinoll</a></p> |
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| **CKMoss-Image-RGBA** includes an RGBA VAE and an optional DiT LoRA, allowing MOSS-Image to output PNG files with an alpha channel for character assets, illustration, and layered compositions. |
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| **Images can be generated without the DiT LoRA.** Keep the original MOSS-Image model and load this RGBA VAE. The optional LoRA adapts MOSS-Image-SFT for transparent-image generation; background transparency and edge quality can differ between the two setups. |
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| ## Downloads |
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| | File | Purpose | Destination | |
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| | [RGBA VAE · 336 MB](vae/moss_rgba_vae.safetensors) | Required; already merged and ready to load | `ComfyUI/models/vae/` | |
| | [DiT LoRA · 298 MB](loras/moss_rgba_dit_lora.safetensors) | Optional; use with MOSS-Image-SFT | `ComfyUI/models/loras/` | |
| | [ComfyUI nodes on GitHub](https://github.com/Chenkin-x/ComfyUI-CKMoss-Image-RGBA) | Nodes, guides, and example workflows | Clone into `ComfyUI/custom_nodes/` | |
| | [Model code on GitHub](https://github.com/Chenkin-x/CKMoss-Image-RGBA) | Python entry points and model code | Clone and run from the project root | |
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| This repository contains a **VAE and a LoRA**. Obtain the MOSS-Image base model and its text encoder separately. See the [official ComfyUI instructions](https://github.com/OpenMOSS/MOSS-Image/blob/main/comfyui/README.md). |
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| ## Get started |
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| Install the nodes, place the weights, and drag a workflow into ComfyUI. Select your base model and text encoder: |
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| - [RGBA VAE only](workflows/vae_only.json): no DiT LoRA. |
| - [RGBA VAE + DiT LoRA](workflows/with_lora.json): default LoRA strength `1.0`. |
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| Describe the subject, appearance, pose, and style. You can append `transparent background`. Connect **VAE Decode → Save Image** to save the RGBA PNG. |
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| Full installation and node guide: [English](https://github.com/Chenkin-x/ComfyUI-CKMoss-Image-RGBA/blob/main/README.en.md) · [中文](https://github.com/Chenkin-x/ComfyUI-CKMoss-Image-RGBA). |
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| ## Showcase |
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| Actual outputs from the RGBA VAE and DiT LoRA, preserving the original alpha. Background colors and checkerboards are for display only. |
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| <img src="assets/showcase.png" alt="Actual CKMoss-Image-RGBA outputs" width="100%"> |
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| [Original transparent PNG files](samples) · [Prompts and seeds](samples/manifest.json) |
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| ## Credits and license |
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| Built on [MOSS-Image](https://github.com/OpenMOSS/MOSS-Image) and the [FLUX.2 VAE](https://github.com/black-forest-labs/flux2#flux2-autoencoder). Thanks to [niangao2331](https://github.com/niangao2331) for data support. |
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| This project uses [GPLv3](LICENSE). Upstream attribution: [NOTICE](NOTICE). |
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