Marius Kintel
Marius Kintel
Non-triangular polygons are OK, but there's always a chance that a polygon isn't planar. Triangulating ensures that. ..plus Manifold requires triangles.
We'll just make a decision for you how to combine the vertices into triangles.
Minor clarification: The mentioned repair isn't something done by Manifold, it's something OpenSCAD does to be able to pass valid meshes to Manifold. Caching isn't properly implemented yet for Manifold....
@nophead the warning is most likely a real indication that your mesh isn't a manifold topology and requires some sort of repair or vertex merge. I suggest you open a...
> Does the rule still apply that a single polyhedron doesn't invoke the geometry engine? That is, if you take one polyhedron and combine it with a cube do you...
> It was a simple case of somebody passing a thread profile with a zero crest. That caused a duplicate point in the profile. Sorry for the noise. If you...
If the issue isn't about gaps in a single polyhedron it's worth opening a new ticket.
> The case of closed path_sweep is probably one such example, though there are some subtleties (specifically, if the object twists, the alignment between the vertices is not necessarily a...
It should work, but we may end up merging close vertices more aggressively than expected. We should come up with some nomenclature for how we deal with such geometry so...