Multi-frame rendering slower with Keylight than single frame

Explorer ,
Sep 23, 2021 Sep 23, 2021

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I've just been trying out multi-frame rendering with a small sequence that has a single instance of Keylight 1.2 on some video footage.

I initially tried it just RAM previewing and found that the time to render was the same for single and multi-frame rendering. I could see that multi-frame was working and CPU utilisation was much more. Info said that at some points, 8 frames were rendering,

 

So then I tried a proper output from the AE render queue. I tried both single and multi-frame. The single took 31s and then the multi-frame took 54s! I had purged memory and disk cache between each attempt. I was saving as ProRes 422 in Qucktime wrapper.

 

Specs - Windows 10 Pro 10.0.19043

Intel i7-7700K 4.2GHz 4 core

ASUS Maximus IX hero

64GB RAM

NVME system and data drives

AE 22.1.0 (build 1)

 

Happy to share project comps if needed.

 

Paul.

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Adobe Employee ,
Sep 24, 2021 Sep 24, 2021

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If you're able to share the comps, please send them to mfrbeta@adobe.com - would definitely like to see what's happening here. Thanks!

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Explorer ,
Sep 24, 2021 Sep 24, 2021

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I've had to roll back to 22.0 due to the system font issue and it seems to be behaving now - multi-frame render is quicker but by varying amounts. When the bug fix version drops later, i'll try that too.

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