Note that I get it once, and then it disappears the 2nd time. Parsing design (AST generation)... Compiling design (CSG Tree generation)... Rendering Polygon Mesh using CGAL... WARNING: Attempted to remove too many vertices around this copied face, remesh aborted! Geometries in cache: 517 Geometry cache size in bytes: 39490152 CGAL Polyhedrons in cache: 289 CGAL cache size in bytes: 36957104 Total rendering time: 0:00:04.879 Top level object is a 3D object: Facets: 8272 Rendering finished. Parsing design (AST generation)... Compiling design (CSG Tree generation)... Rendering Polygon Mesh using CGAL... Geometries in cache: 517 Geometry cache size in bytes: 39490152 CGAL Polyhedrons in cache: 289 CGAL cache size in bytes: 36957104 Total rendering time: 0:00:00.151 Top level object is a 3D object: Facets: 8272 Rendering finished.

[ Jon: sorry for the duplicate; new mail client installation meant that I sent from the wrong address. ] On 1/6/2024 10:07 AM, jon via Discuss wrote: > > Note that I get it once, and then it disappears the 2nd time. > I can't speak to the meaning of the error, but the disappearance is an understood behavior:  OpenSCAD caches the (errneous!) results of the first render attempt, and then doesn't actually do the work that leads to the error on the second attempt.

I believe this comes from the experimental fast-csg feature. If you manage to reproduce this with a somewhat simple test model, it’s worth opening an issue. However, I’d suggest giving the Manifold feature a try; it’s getting a lot more attention than fast-csg these days. -Marius > On Jan 6, 2024, at 13:07, jon via Discuss <discuss@lists.openscad.org> wrote: > > Note that I get it once, and then it disappears the 2nd time. > > > > > > > Parsing design (AST generation)... > Compiling design (CSG Tree generation)... > Rendering Polygon Mesh using CGAL... > WARNING: Attempted to remove too many vertices around this copied face, remesh aborted! > Geometries in cache: 517 > Geometry cache size in bytes: 39490152 > CGAL Polyhedrons in cache: 289 > CGAL cache size in bytes: 36957104 > Total rendering time: 0:00:04.879 > Top level object is a 3D object: > Facets: 8272 > Rendering finished. > > Parsing design (AST generation)... > Compiling design (CSG Tree generation)... > Rendering Polygon Mesh using CGAL... > Geometries in cache: 517 > Geometry cache size in bytes: 39490152 > CGAL Polyhedrons in cache: 289 > CGAL cache size in bytes: 36957104 > Total rendering time: 0:00:00.151 > Top level object is a 3D object: > Facets: 8272 > Rendering finished. > > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email to discuss-leave@lists.openscad.org <mailto:discuss-leave@lists.openscad.org>