I've had 3dsMax get sluggish on me after I do an alt+W to see all my viewports. Before I do that, 3dsMax operates smoothly, even with a complex file. But after I do that, anything I do leads to a 1-2 second lag.
Same here!
I experience an instant and significant performance drop when using "show all viewports." I mainly skipped Corona 10 and installed Corona 11 a few days ago. Yesterday, I opened a relatively simple scene created with Corona 9, then pressed ALT+W (show all viewports).
The viewport performance dropped dramatically, in my case, from 50 to 1-3 FPS (CPU usage when rotating viewport goes up to 28%). I tested this on 3ds Max 2022 and 2024 with fresh ENU folders and default viewport texture resolutions.I took some actions to understand where the problem lies:
-Changing the viewport from perspective to other views in a single window (left top corner) does not result in a performance drop.
-Changing viewport settings and texture resolutions does not help. Even with bounding box mode, I still experience 1-3 FPS.
-Importing the scene into a new one doesn't change the result. The scene is laggy from the beginning.
Currently, I don't have time for further investigations and tests, so I need to revert to the previous version (I will try Corona 10HF3 first) and finish the project.
Best Regards
UPD: installed Corona 10 HF3:
- when performing alt+W to see all my viewports, max freezes for 1-2 sec for one time (as usual) but overall viewport performance does not drop as in Corona 11. So I can continue to work with ~50 FPS