hello , i need a help , i’m making a big model for 3d printing , my idea its to merge al the models , close holes with dynamesh and rezise polys with decimation (my model have 20 milions) but the problems is when i use dynamesh for close holes of all the body merged , i lose details and i use the max resolution and i dont know what can i do , i try to scale the model at the max size and still look same
Hello @Jhonn_Smith
Dynamesh has a practical limit for the amount of detail it can capture. It’s generally meant as a tool for rapidly establishing form at low to medium levels of detail, and probably would have been more useful earlier in your process to merge everything before the fine detail work started.
Part of the problem is the nature of the mesh itself, which is sort of “skeletal”. This means it generates a large bounding box, but doesn’t actually occupy much surface area within that box. This limits the resolution Dynamesh can project onto it.
I see two main ways to deal with this.
- Attempt to use Live Boolean to fuse all the existing subtools together into a new UMesh_tool in the Tool Palette. Given the polycount, this may take a while, or may not even be possible at all depending on your system specs. Live Boolean should also fuse the geometry, close holes, and remove overlapped geometry like Dynamesh, but it will only change the geometry at the intersection, leaving your detail untouched.
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Once completed, immediately save the new UMesh out as a tool (Tool > Save As). That way you don’t have to go through that process again if something goes wrong.
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Once backed up, Decimate the new mesh directly, and export for printing.
- If unable to do the above, instead duplicate the high res tool you are attempting to Dynamesh as a new subtool, Dynamesh the duplicate as well as possible to fuse it, ZRemesh the duplicate to generate higher quality topology, subdivide it sufficiently to capture the incoming detail, and project the detail from the original onto it. Decimate and Export.