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Sculptris painting tutorial12/14/2023 In these cases, sculpting directly in Meshmixer (and skipping Sculptris entirely) is probably a better choice. The flat underside of the model and the mounting holes quickly becomes distorted and ruined after starting sculpting the top of the sphere. You might not bump into the same problem as we did. This is a larger problem than the pie-cut problem, and might be a total deal-breaker for imported CAD models. Once you start fiddling with the model, parts of it gets distorted immediately as seen below. Sculptris also has a hard time preserving the exact shape of an imported model if it has a lot of straight edges and corners, and even the mask tool won’t help you with this problem. The CAD model imported into Sculptris via Meshmixer. A non-elegant work-around where the top has been cut a bit and the incoming edges are divided among several vertices. Pie-cut sphere, where the center point has too many incoming edges for Sculptris. A work-around is to avoid such shapes entirely and export STLs with low resolution. Most CAD software export STL files with pie-cut circles and spheres where many edges meet at a center point. Sculptris only supports max 24 edges entering a vertex. If you want to CAD something, sculpt parts of that CAD part and 3D print it, you might run into a couple of difficulties. The head imported into Meshmixer with a plane-cut neck, ready for 3D printing.
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