MOTION BLUR on XPU | excessive RAM usage

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Hey Guys, first, I want to showcase, the beauty of Karma's motion blur. Looks clean and Insane.

Take a look at the short videos that I've uploaded. (just 3 seconds clips, so Loop it and focus on Propeller motion blur) is insane.

Now, issue #1, I was rendering this tests at a very small resolution and very low sampling, for previewing purposes.
But Around frame 80, it pretty much got stuck computing, and Ram memory was at 99%.

I wonder, if there is a way to optimize, Motion Blur calculations a bit more, or if I have any parameter missing or wrong. I've uploaded my motion blur parameter, I'm not using Velocity. Just Motion blur node inside Solaris.

As I need Super high quality motion blur, I used the maximum Subframe samples that XPU is allowing me, which is 8, beyond that all geometry disappears, which is also my second question... XPU only allows 8? ... when I switch to CPU, samples are pretty much unlimited. but of course it renders way slower. But I'll say XPU with only 8 samples, is giving an excellent result so far. wish I could go up to 10 at least.

Anyway, if someone is familiar these issues, I'd love to read some insights on them.

Thanks to all in Advance.

Cheers
Edited by carlosarangovfx - April 10, 2024 20:49:42

Attachments:
SPITFIRE_final_v1.mp4 (1.6 MB)
SPITFIRE_final_v2.mp4 (5.8 MB)
motion blur parameter.PNG (33.6 KB)
motion blur parameter2.PNG (31.3 KB)

CARLOS ARANGO | VFX
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SYSTEM / (CURRENT SETUP @2024)
INTEL i9 - 14900K
NVIDIA RTX 4090
RAM 192GB
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