Best workflow for cleaning up a mesh that has been exported from Rhino into Zbrush

Jaks · Jan 31 2026

I have exported an obj from Rhino and the resulting mesh in Zbrush is very messy. I would like to add fine detail to it in Zbrush but am struugling to find a good workflow.

This is what I have done so far:

Exported an obj from Rhino with Polygon Mesh Objects and points welded. I then imported this into Zbrush with quads and triangle checked. Next I ZRemshed it with freeze border checked and target polygons at 30. I am using the standard brush for the detail with z intensity upped to 23 and draw size at 4.

As you will see the detail is blocky so the polycount needs to be upped. I would also like to see the 3 pieces of the Rhino mesh joined into one mesh.

Any help would be much appreciated. There is no option here to upload the obj.

Image: https://us.v-cdn.net/5021068/uploads/editor/6y/uehjd4yyuyf3.png

Image: https://us.v-cdn.net/5021068/uploads/editor/0d/5o2hfrfyvljk.png

Eric Chadwick · Jan 31 2026

If you would like to upload a model, the best bet is to ZIP it first. Best of luck!

Fabi_G · 2:27AM

Hi! I think a bit more context would be helpful. What are you trying to achieve?

Jaks · 10:47AM

Hi. This is the obj. The model is to represent sand dunes and will be cnc'd to a 1:25 scale. I need the border to remain exactly as it is (as this is a fixed requirement). I want to add ripples to the dunes. I suspect too that the company that will be cutting it out of polystyrene will need a single mesh rather than 3 pieces.

Best workflow for cleaning up a mesh that has been exported from Rhino into Zbrush

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