topic Re: slow viewport performance 2021 in 3ds Max Forum

slow viewport performance 2021

jarrodw — Mon, 28 Sep 2020 15:08:00 GMT

Hello,

I'm running 3ds Max 2021 and having major viewport slowing when moving xref items. There are 576 items. They are low poly and I'm using bounding box shading.

scene file is only 5.4 MB

I'm running i9-10980XE 3.0GHz

Quadro RTX4000

64 GB ram

Windows 10

I read to turn of multithreading which I have done but all other settings are default.

I have 1 VRay material (gray) applied to the items in the scene.

Any recommendation is appreciated.

Re: slow viewport performance 2021

RobH2 — Sun, 04 Oct 2020 15:13:54 GMT

Did you ever solve this? If not, your machine specs suggest that you should not be having any issues at all. I would guess you've done this and it sounds obvious but have to done these two things:

1. Do a "clean" uninstall of the NVidia drivers and reinstalled. Do it twice (the 2nd time helped me once)

2. Reset your 'ENU'

Re: slow viewport performance 2021

RobH2 — Sun, 04 Oct 2020 16:47:21 GMT

I wanted to update you. I did a test of a huge file with 20+ million polys. Max 2021.2 moves very smoothly with my configuration. I know it's maybe a more robust machine than some but I don't see any lags even with a file this size. The Max file is 1.5 GB.

https://drive.google.com/file/d/18ae7FBwx5_e0Czgi97RZ1lYreYt_PJ2S/view?usp=sharing

The link will expire on 11-4-2020

Re: slow viewport performance 2021

jarrodw — Sun, 04 Oct 2020 17:34:49 GMT

Thank you RobH2,

I'll give it a try.

I appreciate your response.

Re: slow viewport performance 2021

RobH2 — Sun, 04 Oct 2020 18:43:52 GMT

Sorry for that video quality. You can't even read the text and there's a huge gap in the middle. I actually had a VRay realtime render going but the capture software didn't grab it so it looks like I sat still for a long time.

Anyway, I hope you figure it out. Report back if you do.

Here's an update of that crappy video. I felt bad is was so poor. Anyway, I hope you fix your issue. I've had it before and it's frustrating when you are trying to finish a project. I worked at a company a couple of years ago and every project was hampred by inadequate machines as they just would not buy us proper hardware. Slow performance is really a hinder.

Re: slow viewport performance 2021

RobH2 — Sun, 04 Oct 2020 19:01:12 GMT

I did one last test. I realize you were talking about XRefs and I originally didn't have any. I Xrefed the scene (xref file is 2.5GB). There are now just 1.8M polys in the scene instead of 20M so the bulk is xref. It still moves nicely.

I'm guessing you have some sort of localized conflict or choke point since Max seems more than capable of handling huge xrefs. Those are hard to chase down. I really would try doing a clean uninstall of the video card, then Max then reinstall the video, reboot and then reinstall Max. I know that sounds daunting but it may be your only hope.

You might first want to run 'SFC' on your machine to make sure it is healthy. https://www.windowscentral.com/how-use-dism-command-line-utility-repair-windows-10-image

Re: slow viewport performance 2021

lynn_zhang — Mon, 12 Oct 2020 08:07:00 GMT

Hello @jarrodw ,

Just checking to see if your problem has been solved. Have you had the chance to try the above suggestions from @RobH2 ? Any success? If you find the suggestions helpful, please click on the "ACCEPT SOLUTION" button in his reply so this helps other users in the community find the solution too. Thanks!

Re: slow viewport performance 2021

ethanAZBRK — Mon, 28 Jun 2021 17:44:29 GMT

Same issue here man... Running an RTX 3060 12Gb Vram and an AMD threadripper 1650x with 64Gb Ram attached...

Even weirder, it runs super smooth in wireframe, with shaded mode it's getting sluggish and slow... I'm thinking NVidia studio driver / gaming driver...