Issue with Objects Not Appearing Using Different Node Material Snippets

Questions
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1

I’m encountering a peculiar issue with two Playgrounds where objects fail to appear in one. The PGs differ only in their Node Material snippets: I87P34 and I87P34#2. The first, using ‘I87P34’, functions correctly, but in the second, certain objects are invisible. My scene includes a Sphere as a skybox.

I suspect the problem relates to the NodeMaterial, potentially involving alpha or visibility settings. I’m looking for a solution that doesn’t require setting the renderingGroupId for each object.

PG1: https://www.babylonjs-playground.com/#8ZY2K9#1
PG2: https://www.babylonjs-playground.com/#8ZY2K9#2

Any suggestions?

2

Yes, your second node material has something connected to the FragmentOutput.a input, so it is considered transparent.

You can order the transparent meshes thanks to mesh.alphaIndex. By default, there’s a very big value in this property. So, if for the sphere you set a small value (like 0), it will be displayed before the plane:

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Thank you so much, I spent too much time on it!