Comfy-Org / Comfy-Org/ComfyUI

(medium(?) request) ImageCompositeMasked node should support RGBA

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Feature
Dominant language
Python
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Description

### Feature Idea

It would be nice if this node respected alpha/transparency values. I attached a screenshot, its not the most obvious example,but my source is RGBA, and the alpha channel doesn't appear to be preserved.

Image

### Existing Solutions

_No response_

### Other

_No response_

Contributor guide

Open the contributing guide

Research direction

Locate the ImageCompositeMasked node entry point and inspect how it handles RGBA input and alpha/transparency values. Reproduce the attached scenario with an RGBA source, then verify that the resulting composite preserves the alpha channel.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
computer-vision
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
55/100

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