Hi everyone,
I’ve been trying to solve a Flow Along Surface issue in Rhino for the past few weeks, but I haven’t been able to get it working properly despite trying several approaches. I’d really appreciate any help or advice.
I have a pebble-shaped polysurface, and I need to apply a chip-carving texture across the surface.
Main issues:
I first tried rebuilding the polysurface using Patch / Network Surface, but I can’t get anything close enough to the original shape while still being suitable for mapping.
I then tried using an approximate patch and Flow Along Surface, but I still can’t get the mesh to match the target surface properly.
The texture needs to:
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sit slightly below the surface (engraved / carved in)
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fade out smoothly before reaching the edges
I also tried trimming the texture using a UV footprint, but it doesn’t seem to distribute evenly. In some areas it stretches, becomes misaligned, or doesn’t reach the surface edges.
I am not so familiar with the UV mapping thing so I’d love to learn more about this.
What I suspect is the issue:
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For rebuilding in a clean untrimmed surface: I don’t use the correct linework/ setting
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I may not be unwrapping or setting up the UV mapping correctly, so the texture trimmed mesh doesn’t match the base surfacee
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Or I might be missing a better workflow entirely for this kind of organic surface and carved effect.
See the screenshot below and I also uploaded the rhino file on retransfer here as it is too heavy for uploading on this message: Unique Download Link | WeTransfer.
Just so you know I use the latest Rhino version on Mac 8, I started learning grasshopper but I am still a beginner.
If anyone has experience with this or can suggest a better approach, I’d really appreciate the help.
Thank you so much!
