Displacement creates bad meshes

[Charles]

Displacement creates bad meshes, even in simple cases.
MeshRepair says that.
@piac
Repair attempts make it worse.

[piac (Giulio Piacentino)]

I reported RH-97418.

This will help us track the issue and possibly provide guidance.

Thanks, -Giulio

[Charles]

@piac

I reported

Thank you!

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In the meantime, I played more with the displacement.
I always get bad meshes, regardless which parameters are given.

Then I tried Blender.
I have to heavily struggle with it’s UI

But the displacement results are very usable and not bad meshes.
The downstream tools in Rhino don’t have to struggle so much.

Conclusion:
Today, the Displacement + ExtractRenderMesh workflow is not usable at all to create geometry in Rhino.

Expectation:
Displacement gets fixed so that it generates error-free meshes.

[piac (Giulio Piacentino)]

Can I see one mesh from Displacement that you like and that is invalid? Pretty please

[Charles]

2026-08-03_Displacement.3dm (3.9 MB)