CPU Animation Render Artifacts

#1

I am doing a technical animation. I’m new to animation, and even newer to Keyshot animation.
For the rendering I will hire a rendering farm in Turkey, but they only have CPU rendering options.

These are my test renders on company PC.

18-CPU
ATLAS KASA-MOTOR-16.18-CPU.jpg1280×720 294 KB

CPU Still Render

19-GPU
ATLAS KASA-MOTOR-16.19-GPU.jpg1280×720 418 KB

GPU Still Render

With the CPU still image render I get black artifacts. Even with GPU rendering, I have white spots for the same frame.

montaj-CPU.avi (5.3 MB)
This is CPU preview render.

montaj-GPU.avi (2.3 MB)
This is GPU preview render.

Since the renderfarm company has the CPU capability, I have to render on CPU. But how can I rid of these artifacts?
I applied Fade animation to the objects that left artifacts.

Or should I not think too much about it and find a GPU render capability farm?

Can anyone suggest something about this?

Thanks.

#2

Endemic, it looks like you need more render passes. Also, if you look at cpu vs gpu… in your cpu render you are getting a drop shadow from the plug that fades out. Don’t think that should be there after it fades out. Not sure how to fix it. I render almost exclusively in gpu now. So I believe the noise/flashing you are seeing in the gpu is because the noise reduction is run on each frame and the remaining grain is different from frame to frame which causes the pulsing. Try rendering with more passes and turn down the noise reduction or even try turning it off and just crank up the passes till it looks smooth. I have a 3 gpu setup that works very well for rendering vs using a farm.

Wayne

1 Like
#3

You have 3 GPUs set up. Hah. I have an RTX A3000 on my laptop. The farm is the only choice for me.

Thanks for your suggestions.

#4

One of mine is an external gpu in an enclosure that I connect to my laptop when I’m on that. It is thunderbolt. If you have thunderbolt on your laptop you can get a 3080ti that will make a big difference. [Almost as fast as the 3090]. Right now with the drop on prices you could pick one up reasonably.

#5

I am looking for that kind of options but in the end, my boss will (not :roll_eyes:) pay for it.
They think outsourcing is more logical than having own setup.

#6

I tested part of animation both CPU and GPU.
Here is the resolt and setups.

On CPU mode I noticed that Cutaway material (on top yellow part) is not rendered as it’s supposed to be.
Cutaway%20material

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As a result, I believe I should go forward with CPU.
At these settings, the CPU render seems to be ok, but the render farm is essential to get the job done.