Hi there,
I wonder if there is a bug in rhino 8
when I isolate one sphere object in the scene which has 900 spheres, 899 sphere are added in selection after “isolate“ command.
This makes isolate command slower. Is this new system in Rhino or some Bug?
I upload a GIF to shere. if someone has the same problem, please tell me !
Hi @AYuA
Not a bug as such. It’s merely how the Isolate command works. It basically inverts your selection (in your case the 899 spheres) and hides them. Depending on how fast/slow your system is, it might slow down things for a second.
-Jakob
Thank you so much for your quick reply.
I understand !
It means, “isolate” command slows down depending on the quantity of geomeries in the scene.
Its true that I have now a scene which has more than 50,000 surfaces. and when I hit “isolate”, Rhino freezes around 4 minuts…
ok! thank you so much Jakob san.
Yeah… with THAT many surfaces I would imagine that quite a few of the visibility commands (Isolate, Invert/Hide, ShowSelected etc.) might take a hit 
-Jakob