KhronosGroup / KhronosGroup/COLLADA2GLTF

Transparency conversion seems to be lost

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Dominant language
C++
Stars
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Forks
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Description

Hello,

I am having an issue with transparency conversion from DAE to GLTF or GLB
It seems transparency has a fixed value in converted file

![image](https://user-images.githubusercontent.com/7167627/141116378-82ab5b40-0bb3-4f24-be48-54335c06f691.png)

**assets:**
[TestGltf.zip](https://github.com/KhronosGroup/COLLADA2GLTF/files/7512833/TestGltf.zip)

Best regards,
Philippe

Contributor guide

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Research direction

Start by reproducing the conversion with the attached TestGltf.zip, comparing the source DAE transparency with the generated glTF or GLB. Trace the material conversion path and verify that the output preserves the source transparency rather than applying a fixed value.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
computer-graphics
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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