Fusion Particles crash

Hello,

i tryed a tutorial from YouTube with some particles.
But if i enable the particles and want to preview them it crash Resolve very soon.
If it crash Resolve i cant reopen Resolve until i restart the computer.

Here is the database with just this tutorial (212kb):

http://faxxe.dyndns.org/particles.zip

Resolve 15 Studio - 5820k - 16 GB Ram - Windows 10 - 1080ti v398.82

-Heimo

Did you try it with the "Run Fusion in CPU" option to see if that helps?
Can you tell how much your GPU RAM is filled up?

I can confirm that particles tend to crash the Fusion page with a GPU RAM full error, even with a simple particle system and 8 GB VRAM. The same particle script works fine in the standalone version.

Does it for you also crash with Fusion on CPU in Resolve Studio?

Funny is that when I try to rebuild this tutorial one by one:

It throws the GPU error after adding a few nodes...even with only 20 particles set...
When I downloaded the fusion macro from the tutorial I could render it with 2000 particles....

Haven't tried in Fusion 9 alone...

Thanks for Confirmation.
Yes, it crash also in Fusion CPU mode. Strange is, i also got the GPU RAM full errormessage in
this CPU mode (1080ti is ~11 GB VRam).
The behavior is a little different every time. Sometimes i get a rendered preview in Resolve. Sometime
the application just apperas with the crash screen. But overall its useless in the current state.

-Heimo

Hmm...was thinking about getting me a GTX1080/11GB for xmas (o;
I don't see the point in acquiring a GPU which is 20 - 30 times more expensive than resolve studio

Does BMD actually read these posts about GPU errors? Seems a lot of people are having this issue...

Much lower GPU RAM usage in Fusion 9 with same dissolve effect:

Code: Select all

|    0      6576    C+G   /opt/BlackmagicDesign/Fusion9/Fusion        1183MiB |
|    0      6633      G   ./Fusion                                       9MiB |


So definitively something wrong in Resolve Studio Fusion part...as Fusion 9 uses no CPU for this...

I wouldn't buy an expensive GPU for Fusion yet, it's by far not optimized for this.

An 11 GB VRAM GPU would make sense if you have to work beyond 4K in Resolve with some demanding filters, and I suppose if you really need that, you should have the money too…

But for Fusion get CPU power and RAM and do your particles in the standalone version until BM has sorted this one out. I can promise they listen.

Hmm..I got the feeling that Fusion 9 did a faster job in rendering the particles than Resolve Studio (though I have turned of GPU in Resolve).

Well my final goal is to acquire the BMPCC4K by xmas (if there are some left ;o) and do footage in 4K@60fps or 1080p@120fps.

But rendering will be mostly 1080p for social media and websites....not sure if 1440p/2160p in youtube makes sense yet (o;

Well I hope prices for the 1080 will drop by end of this year as the RTX comes out next month with 50% performance and 85% price increase (according to Heise ;o).

I did some more tests with that tutorial and had an interesting result:

This time I didn't kill the "Media In" node as he suggested, worked my way through the tutorial and voilá – no crash and the VRAM is not filling up to the end, only to about 75%. I even upped the particles to 5,000 and no crash, just slowing down.
But now the funny thing: I deleted the Media In in the end to provoke a crash, but nothing happened.

Strange! Could you try this as well, please?

Very interesting

Could now complete the whole tutorial and used 5000 particles as well without any crash or GPU errors, though running still Fusion on CPU (o;

Well, keeping the Media In doesn't hurt

But it's really weird, I had one crash when I just tried to set keyframes for the rectangular mask.
Maybe we need to play a bit more with "MediaInless" Fusion to provoke a repeatable crash for BM to work on.

Did you run Fusion on CPU or GPU for the test?

Still eats almost all of GPU RAM:

Code: Select all

|    0     13124    C+G   /opt/resolve/bin/resolve                    5715MiB |


Okay..changing the pEmitter from point to point cluster just crashes it immediately (o;

Can't reproduce that, doesn't happen here.

I used CPU since Fusion is still relatively unstable with GPU. But it takes quite some VRAM nevertheless.

Well merging a short clip and a png eats up also around 5.5GBytes (o;

I think it just fills up what it can or stores the clips there for caching?

Hello,

it seems, leave the MediaIn node helps at least in Fusion to handle more particles.
I could also go to 5000 particles. But when i switch back to Edit Mode Resolve has freezed and
the GPU Memory full messsage appears.
Fusion was in CPU mode.

-Heimo

Sigh, we may have to live with the fact that Fusion integration is still immature.
Go Fusion Connect with demanding jobs.