(2020-02-18, 13:00)Philippe Hurbain Wrote: Simplifying this implies to delete middle vertex, something most tools won't do. The only tool I know that can remove this extraneous vertex is LDPE MeshReducer (tools->meshreducer). Then any version of rectifier will be able to create a quad (or you can do "manual" triangle merge). Sorry, should have thought of this tool for your diamond pattern... but your mileage with it may vary!!!
No biggie. I just merged the middle vertex to create two triangles and then DAT header did the rest. It really wasn't a huge time sink.