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I have made a palette with a procedural wooden material and some geometry nodes in blender (It is free on CG Trader).

The blend file for the palette itself has none of the modifiers applied or the procedural material baked in order to still have control over it and improve/change it.

However, to actually use it in another project I want to merge all the separate blank objects into a single palette object to be more efficient. For this I need to bake the procedural material to an image texture.

I basically followed Ryan King Art's excellent YT tutorial, only difference in my case is that I want to bake all the wooden plank objects onto a single texture. Process is pretty much the same and my UV unwrap looks good as far as I can tell. Starting with the first object I get the following result: enter image description here

enter image description here

However, some of the plank objects completely mess up the texture, like this:

enter image description here

I have no clue why this happens, since there is no difference in settings to the other planks. Here are my baking settings for completeness:

enter image description here

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  • $\begingroup$ Do you check normal orientation ? $\endgroup$
    – StefLAncien
    Commented Sep 2 at 15:53
  • $\begingroup$ @StefLAncien I have checked the normals, they all look good (all blue outside). $\endgroup$
    – Roland Deschain
    Commented Sep 2 at 17:51
  • $\begingroup$ Can you share your Blender project file? Instructions for sharing. $\endgroup$
    – Jakemoyo
    Commented Sep 2 at 19:40

1 Answer 1

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(Using Blender 4.2.1)

The extra faces on the baked texture are generated by the Mesh Boolean node carving nail holes in planks in the GeometryNodes modifier. Because UV unwrap is made before the modifiers, those faces are not displayed in UV Editing. To see them, modifiers have to be applied, what could be inconvenient. UVMap with GN modifier applied

A workaround for baking is to slightly adapt the GN graph as follows. GN Graph Dark pink nodes: Taking advantage that "Nails" objects are using an other material, Face Corners generated by the Difference of both meshes are moved to the UVMap origin, i.e. (0,0,0).

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  • $\begingroup$ Ah, this makes sense, I will test this asap and mark the answer. Thank you, this gave me quite the headache :) $\endgroup$
    – Roland Deschain
    Commented Sep 3 at 6:01

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