Messages

1

[Max] I need help! / Re: Interactive rendering slows down.

« on: 2025-03-17, 10:08:22 »

No effect

2

[Max] I need help! / Re: Interactive rendering slows down.

« on: 2025-03-15, 16:36:12 »

Just a random idea: could someone with this problem try switching to the 3ds Max VFB and see if the issue is still there?
Render Setup > System > System Settings > VFB Settings > Type > Native 3ds Max VFB (you need to reset/reload scene for this to take effect)

Hey

Native 3ds Max VFB = no effect
Legacy Corona VFB = no effect
Another big update for windows 11 24h2 = no effect

Also, I have big feel that's corona and 3ds max in general works slower and worse on Windows 11 than on Windows 10)

3

[C4D] Daily Builds / Re: 100% cpu in IPR usage in daily?

« on: 2025-02-19, 22:59:04 »

Can you please try installing the newest Windows Update? (KB5052093)
It seems to be the solution for 3ds Max users: https://forum.corona-renderer.com/index.php?topic=44441.0

Can you explain to me step by step how to remove the beta version that you made me install to return to the official version of Windows 11 with this update?

Hello, I had the same problem with x9 PC (x5950/9950x and even 14900k was tested)
Best solution for now is rollback to 23h2, the general problem seems is in windows
Also, the problem was fixed and tested on few PC with 9950 with update to 24h2 26100.3321
(You can also turn off EXPO in bios in some cases that help as well)

We spend about a few months for making all possible test before find out that problem was mostly in Windows update after 24h2 26100.1742
Looks like they broke something in power plan, there not only corona suffer with that kind problem

4

[Max] I need help! / Re: Interactive rendering slows down.

« on: 2025-02-19, 12:55:20 »

Hello, new update to 26100.3321  (KB5052093) seems to solve problem (it's not beta/dev channel)

5

[Max] I need help! / Re: Interactive rendering slows down.

« on: 2025-02-13, 17:29:07 »

I found a similar article when I first experienced the problem. Turning the core park option on or off didn't make a difference for me. Using the motherboard bios settings in the default settings solves the problem for now. I'm waiting for the new Windows update. Maybe something will be fixed. Also pay attention to the processor fan. Heating problems make the system unstable. Liquid cooling is disappointing. Tower fans offer more effective solutions. I'm not very expert in this subject, but this is how I experienced it. By the way, I'd appreciate it if you could write your experiences with expo off in the Bios settings.

- I can't agree with you about cooling, and the problem is not because of it or overheating up to 95C (Add few screens from few pc with 9950x with AIO)

- Regarding the search for certain ways to solve problems, today everything comes down to two methods: one works for many, the second does not work for everyone.
1. Rollback to 23h2 2. Turn off expo (And problem not directly in OC memory or OC CPU)

- There small chance that upcoming bios update can solve problem

- Wait for windows update can take long, they acctualy fix that problem befor and seems after 10.0.26100.1742 broke something again.

- There no point wait from Corona team that they make miracle, becouse main source of problem its a Windows and bios

p.s There will be latest test when new stable bios released one with 24H2 + expo on + cpu oc and if that wont work 23H2 + expo on + cpu oc

6

[Max] I need help! / Re: Interactive rendering slows down.

« on: 2025-02-10, 15:34:57 »

Corona not alone with such a problem, and seems the fix is the same rollback to 23h2
So its clear now the problem not directly in corona at all, tnx Microsoft ones again.....

7

[Max] I need help! / Re: Interactive rendering slows down.

« on: 2025-02-04, 19:38:21 »

I confirm, several more PCs were assembled on the 9950 base, and the problem is not observed on them with 23H2.

The problem appeared in versions newer than Windows 11 Pro 24H2 26100.1742

p.s Unfortunately, there is currently no way to reinstall 23h2 on other PCs to 100% confirm the absence of the problem.

8

[Max] I need help! / Re: Interactive rendering slows down.

« on: 2025-02-02, 23:36:02 »

Hey Corona team - have you been able to reproduce the freezing/stuttering on 9950x and win11 24h2?
My new workstation is just a very expensive pile of rubbish until this gets fixed :( Would be great if you could look into this and figure out if the problem is in coronas code or in Windows. Or whatever else might be causing the issue.

Hey i've join to this request, unfortunately have no time atm to reinstall windows.

There few main options left or its problem with Windows 24h2 or its problem in Corona or bouth)

9

[Max] I need help! / Re: Interactive rendering slows down.

« on: 2025-01-30, 15:45:02 »

The last option that left to test its roll back from 24h2 to 23h2. At this moment I have tests from new 8 PC with 9950, different ram, motherboards, and AIO all of them expect 1 with 24h2

This bug fist time we get with version Windows 11 Pro 24H2 26100.2033 and newer, and there was no bug on Windows 11 Pro 24H2 26100.1742 and seems 23H2 any version.
When it was only with one PC there was no point for alarm, but now with 8th PC its a clear problem

Freezing occurs under certain circumstances.

So problem not it motherboards/ram or overcloking ram/cpu, or even temps. We try differect bios update awell!
Seems left only few options windows, corona and amd chipset drivers (last one most likely not but...)

Atm I cant give more test couse no time reinstall withdows on all PC. But the last one with 23h3 no frezzes on corona 12.1 (didnt test yet 12.1 hf 1)   

p.s but there strange thing on one PC if turn off EXPO, there no such a problem with corona 12.1 and if install corona 12.1.1 its totaly frezz PC no metter EXPO on or OFF.
So stepback to "Freezing occurs under certain circumstances."

10

[Max] I need help! / Re: Interactive rendering slows down.

« on: 2025-01-29, 13:44:30 »

Any update?

Another new build win 23h2, 9950x, 64 gb ram, expo off. No lags or frezzes

I have big feel that main problem is in windows 24h2. They did something that boost games and not redner)

What exactly do you mean by "another new build"?

6th PC with 9950 Ryzen.

11

[Max] I need help! / Re: Interactive rendering slows down.

« on: 2025-01-29, 12:51:54 »

I don't know your situation. Of course, the processor does not always work at 95 degrees. When I have a freezing problem, the processor temperature is not very high. Everything is normal when EXPO is closed. There is no freezing at all when rendering normally.

Any update?

Another new build win 23h2, 9950x, 64 gb ram, expo off. No lags or frezzes (Corona 12.1)

I have big feel that main problem is in windows 24h2. They did something that boost games and not redner)

12

Hardware / Re: how much difference does the ram speed do?

« on: 2025-01-27, 20:55:10 »

about +-5% no point pay for overprice overclocked sticks they wont work with 9950 as it should.

13

[Max] I need help! / Re: Interactive rendering slows down.

« on: 2025-01-27, 13:31:18 »

I wanted to write earlier, that the descriped behavior sounds like overheating issues, and here are my notes:

CPU is ok to push itself to 95% if it does not throttle. It can be so that even when CPU throttles, lowers the clock speeds to cool itself down, there is still not enough coolling and it just stays on 95%, just to keep working and to not bluescreen the machine.

Other users have already reported that v12 update 1 hotfix 1 has solved the lagginess issue(s) for them.

So, to make sure the issue is not v12 update 1 hotfix 1 related (or Corona related), please try earlier versions, specifically v11 or v10, if you can, or other CPU intensive workloads.
Earlier versions can be downloaded from: https://www.chaos.com/corona/3ds-max/download/old

Hello, on the previous page I gave information based on tests of 4 and already 5 computers, I also attached a video from one, there is a connection between all this, namely Ryzen 9950 and the latest updates of Corona (and possibly in BIOS and Windows), but what exactly the problem is is not yet clear
p.s

5th PC has windows 23h2 222631, no expo on, same motherboard same bios as on others. Corona 12.1. No shutters or so

in a week there will be bios and drivers update related to 9950 ryzen will update info after

14

[Max] I need help! / Re: Interactive rendering slows down.

« on: 2025-01-27, 09:02:07 »

It is normal for the processor to be at 95 degrees. It works at the same temperature for me too. There is no problem with rendering during IR, but the system freezes. Sometimes the system shuts down completely. When it is turned off, the temperature is often around 80 degrees. If you use the bios at default setting you will see the difference.

The bios are at default settings. Dont think its good for the processor to be at 95 degrees.  If it gets hotter than 95 I think it starts to throttle which I believe is whats causing the freezing problems for me.  Again - by removing the side of the computer it lowered the temp by a couple of degrees and all the freezing/problems went away.  Not sure if this is connected to your problem or not, but the symptoms are similar.  I will return the computer to the store tomorrow so they can take a look at the cooling. Maybe they made a mistake when they put it together.
However, the problem only occurs when rendering corona in max. I have the latest hotfix installed. Latest win11 version. When running the corona benchmark there is no problem with temp or freezing, so maybe there is a problem with corona for max?

1000% problem not in temps, and 1000% problem in microcode of something

15

[Max] I need help! / Re: Interactive rendering slows down.

« on: 2025-01-25, 00:14:39 »

For those who have problems, can you write the exact model of the ram?

G.Skill 96 GB (2x48GB) DDR5 5200 MHz Ripjaws S5 Matte (F5-5200J4040A48GX2-RS5K)

Our RAMs are different. So the problem is not related to RAM. Could there be a problem with some processors in the 9950x processor family? As far as I understand, this is not a problem with all 9950x processors.

Well look) all PC with different RAM, AIO, MB. 1 with 5950+24h2 and 3 with Ryzen 9950X + 24h2 my AVG temps 75-80 with OC mode. (also latest bios)

But there still few minor difference...
1st PC have zero problems with Corona 12.1 and it have windows 24h2 10.0.26100.1742 and EXPO off.
2nd PC with 24h2 10.0.26100.2894 and Corona 12.1 have no stuttering but if turn on EXPO its starts, also it start frezz with Corona 12.1.1 no metter EXPO on or off.
3rd PC with 24h2 10.0.26100.2314 and Corona 12.1 have stuttering even if EXPO off, and same with Corona 12.1.1
4th PC Ryzen 5950Х with 24h2 10.0.26100.2314 and Corona 12.1  have no stuttering with EXPO on.

Also after Corona 12.0 scene parsing in 12.1 take about 30 sec befor was 10-15 sec (I guess of scene state, have to test more)
In general interactive and production render worse then was on Widndows 23h2 and Corona 12.0 (memory leak, frezzes, longer parsing)