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"Ambient Occlusion" color node is not exported when slotted into Base Color #2434

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hybridherbst opened this issue Dec 8, 2024 · 2 comments · May be fixed by #2437
Open

"Ambient Occlusion" color node is not exported when slotted into Base Color #2434

hybridherbst opened this issue Dec 8, 2024 · 2 comments · May be fixed by #2437
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enhancement New feature or request

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@hybridherbst
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Describe the bug
I've now seen a number of files that use a graph like this:
image

Usually this is used instead of a regular color field, but has the same effect – just in the viewport it causes somewhat more contrast because it introduces ambient occlusion.

I think all instances of this node can be exported as if they were regular RGB nodes.

To Reproduce
Steps to reproduce the behavior:

  1. Download attached file :
    BlenderBaseColorAOBug.blend.zip
  2. Export as glb
  3. Note that the "RGB" node is properly exported but the "Ambient Occlusion" node is not

Expected behavior
Ambient Occlusion node exports as if it were an RGB node

Screenshots
see above

.blend file/ .gltf (mandatory)
BlenderBaseColorAOBug.blend.zip

Version

  • OS: MacOS and Windows
  • Blender Version 4.2 and 4.3
@julienduroure
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julienduroure commented Dec 9, 2024 •
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Confirmed that we are not (yet) managing this node.
Settings as enhancement.

Note: The AO socket of this node can probably not be used by glTF exporter, as this need to be baked first to a texture.

@julienduroure julienduroure added the enhancement New feature or request label Dec 9, 2024
@hybridherbst
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Thanks, I agree on the AO socket – I think the node should be treated as if it was an RGB node (just the color used).

julienduroure added a commit that referenced this issue Dec 10, 2024
@julienduroure
Fix #2434 - manage AO node for base color factor
1493535
@julienduroure julienduroure linked a pull request Dec 10, 2024 that will close this issue
Fix #2434 - manage AO node for base color factor #2437
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Fix #2434 - manage AO node for base color factor KhronosGroup/glTF-Blender-IO
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@julienduroure @hybridherbst