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Help please A problem with simulations 3D Render, Digital Artwork by Mjrk
Help please! A problem with simulations!
3D Render by Mjrk
The picture is nonsense, I know. It is only the first test of clothes that didn’t crash
DAZ-Studio 4.24 on my ew“ iMac (actually it is a late 2013 iMac I bought on
Ebay because of the inbuilt Nvidia graphics card).
Every other attempt to simulate a figure with dforce clothing shut down the application
immediately.
I have looked in the forums if someone else has the same problem. But it doesn’t seem
to be a known problem.
After some warnings concerning the newer versions of DAZ-Studio, I have deleted it
and changed to the old version 4.20. At least there is the Save Menu accessible
during the simulation (which was sometimes very helpful).
But a new simulation shut down another simulation with the old version of the program.
So I can’t find out what the incompatible components are; the system (Sonoma 14.7),
the application or the graphic-processor (Nvidia GeForce GTX750)?

As far as the picture is concerned: P3D Ursula G9, Fair Maiden Dress, Elysianna Hair
BM-6 Bird Props, Some parts of the Hobbit home by Roguey and some other props
Just to see if she model could be rendered. At least that worked well.
After 4 or five attempts to make a simulation with the dress, I used a somehow
strange and seemingly un-technical solution: I let it ink in“ (in the brain of
a computer?) I didn’t start the simulation right after opening the file, instead I waited
for some minutes before I hit the simulation button - and it worked! 1 time!
Every other attempts with different models caused a crash of the application.

Now my question is: has anybody had the same problems or maybe someone
has found a way to get around it?
Thanks for reading!

tl;dr: why can I not make simulations anymore?

MelMaverickSun, Jun 29, 2025
Karma: 2,036
Wish I could advise, but my own dforce sims are hit and miss, though for different reasons. I'm not sure if you already read these, but below are two links I found that are even close to being recent. I know I've had issues in the past with driver updates, etc., so maybe it's something that simple for you. Hope this helps.

https://www.daz3d.com/forums/discussion/649521/running-dforce-sims-still-crashes-the-system-display-driver

https://www.daz3d.com/forums/discussion/520416/dforce-error-during-simulation?srsltid=AfmBOoreFUHR5QnpHlktHfxlHXXVPIvTlHOEa9XMigXX9e_N2pYNHhEe

Mjrk
Karma: 37,380
Mon, Jun 30, 2025
Thanks for the answer. Yes, I have already checked the Nvidia site for drivers. But the graphics-card chip isn't known there!?!
And in my system preferences I cannot find anything about "CUDA". An update from CUDA (whatever that maybe) should be possible.
pchefMon, Jun 30, 2025
Karma: 1,263
Maybe your graphic card has not enough memory (1 Gb ?) for cloth simulation I've read somewhere 8 Gb min,  I'm not sure, but investigate that way
Mjrk
Karma: 37,380
Mon, Jun 30, 2025
Thanks for answering - but until now all my models and pictures were made with an even older computer
with 2 GB of Rom for the graphics card. And this worked fine even with lots of props and vine more polygons.
But one day the HD in that computer died. I have to use this "new" iMac now until I can repair the older one.
It looks as if every scene from now on must be populated with girls in Renaissance-Costumes smile
And that's going to be as boring a the picture above.
mrtaured
mrtauredMon, Jun 30, 2025
Account Closed
Daz gave up and instead of making daz better they bridged. Blender is overrated and z brush is a rip off. I've accepted these things. 07 good luck to all that struggle to find otherwise. emote
pchef
Karma: 1,263
Tue, Jul 01, 2025
Blender overrated !!! Do you really work with blender ?
mrtaured
mrtaured
Account Closed
Tue, Jul 01, 2025
Yeah. And for a long time I've said it's a pile of junk that only a few will ever bother to climb and for the past ten years the only real achievement in 3d rendering is Ai makes it easier and saves you 2 or 3 years of starring at blender to even know how to use it. emote
pchef
Karma: 1,263
Wed, Jul 02, 2025
I respect your opinion. I've been using blender since its 1.47 version and I like it. Yes, I agree, it's not a lego, you have to create from scratch. Yes when I began, i almost gave up but now, I'm glad I didn't.
MjrkMon, Jun 30, 2025
Karma: 37,380
It seems, I found the solution: let the CPU do the dForce-Simulation.
At least on my iMac with i7-Processor:
> go to the Simulation Pane > Advanced Tab > under OpenCL Device choose:
Apple Intel Core i7-4771 CPU @ 3.5 GHz

The simulations run nearly 2 times faster than the ones with the Nvidia Graphics Card Processor
AND it doesnt crash the Application every time!

I dont remember if I could have chosen the CPU with my older Mac. But I guess it was an i5 CPU.
And that was not ready for such tasks.
MelMaverickMon, Jun 30, 2025
Karma: 2,036
It's weird the way that works. It seems the comp chooses its onboard graphics processor over the gpu in certain situations. I'm glad you got it figured out. I may even look into that on my computer to see if it helps my sims. Thanks for posting.
Mjrk
Karma: 37,380
Tue, Jul 01, 2025
I'm glad if it helps smile

Help please! A problem with simulations!

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Sun, Jun 29, 2025
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