"Creating preview mesh" is drastically slow for this file on Rhino 6

Rhino Rhino for Windows
1

Please switch to Perspective viewport after opening the file. On my computer, Rhino 6 SR3 takes about 10 minutes to create the preview mesh while Rhino 5 only takes ~10 seconds.

The file consists a BRep with 22765 surfaces.

The file is here:
https://drive.google.com/open?id=1ewexP17-9GkHrwPD0JVvfVcD1VAHBGWB

2

Hello - thanks, I’ll take a look - there have been other similar reports.

@gankeyu - thanks for the example , this is very slow here as well.
https://mcneel.myjetbrains.com/youtrack/issue/RH-45640

-Pascal

1 Like