Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: thomaslivings on 2021-04-12, 23:45:09

Title: frame time increasing a few seconds per frame.
Post by: thomaslivings on 2021-04-12, 23:45:09

I am rendering 4k on a Ryzen 3990. ~1500 frames (10 cameras).
1 HDRI is the only light source, lots of proxies.
Very small camera movement only, no animation, the content is essentially the same on each frame.
Im using a noise tolerance (7%) and denoising (90).

I see a few seconds added to each frame time. Not the first time this has happened, but this project will go to a commercial farm (Rebus) and I dont want to burn my credit unnecessarily. If I suspend the render then restart it on Backburner, the frame time drops to the original frame time and begins its creep up again, frame by frame. After 35 frames it is +50% over frame 2.
Ive added some images below to describe the problem.
Any help much appreciated.

Title: Re: frame time increasing a few seconds per frame.
Post by: thomaslivings on 2021-04-13, 17:00:54

Bump.
Has no-one else had this issue? Its happened on the last 3 projects I rendered frame sequences for, really need to find a working solution...
Thanks,
Tom.

Title: Re: frame time increasing a few seconds per frame.
Post by: wilbertvandenbroek on 2021-04-13, 21:50:17

I had this once during a big project I recall. We had something like a memory leak where each new frame would use more ram and slow down the render. Unfortunately we didn't solve it at the time because of deadlines and it was a minor issue.
Would love to hear a solution though.

Title: Re: frame time increasing a few seconds per frame.
Post by: Marijan on 2021-04-15, 00:22:21

Maybe it's proxies. I have similar problems, already  asked about it long time ago:

https://forum.corona-renderer.com/index.php?topic=28235.msg175347#msg175347 (https://forum.corona-renderer.com/index.php?topic=28235.msg175347#msg175347)

Title: Re: frame time increasing a few seconds per frame.
Post by: aaouviz on 2021-04-15, 08:43:23

Are you loading a saved pre-calculated UHD/4k cache for the animation?

I noticed when I'm rendering animations with this "load from file" set-up each frame tends to get slower...

Title: Re: frame time increasing a few seconds per frame.
Post by: Avi on 2021-04-15, 11:29:30

Quote from: thomaslivings on 2021-04-12, 23:45:09

I am rendering 4k on a Ryzen 3990. ~1500 frames (10 cameras).
1 HDRI is the only light source, lots of proxies.
Very small camera movement only, no animation, the content is essentially the same on each frame.
Im using a noise tolerance (7%) and denoising (90).

I see a few seconds added to each frame time. Not the first time this has happened, but this project will go to a commercial farm (Rebus) and I dont want to burn my credit unnecessarily. If I suspend the render then restart it on Backburner, the frame time drops to the original frame time and begins its creep up again, frame by frame. After 35 frames it is +50% over frame 2.
Ive added some images below to describe the problem.
Any help much appreciated.

Hi,

I am from the corona team & I would need some additional info to investigate your scene.

1. Can you let me know the 3dsmax & corona version you are using?
2. Can you send me your scene for a close inspection. You can use our private uploaded to send us the file. Link : https://corona-renderer.com/upload

Once you are done uploading, do let me know the file name.

3. Can you let me know the step by step process to reproduce the same results?

Looking forward to hearing back from you soon.

Regards,
Avi