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only CPU export when I use the Effect "Color Key"

Community Beginner ,
Dec 15, 2023 Dec 15, 2023

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Hi everyone,
 
I'm facing an issue with my video editing project. When I try to use Color Key to remove a white background from my videos, the project only utilizes the CPU for processing, bypassing the GPU. I've attempted various approaches using different effects and methods, but unfortunately, the results haven't matched the desired outcome that Color Key delivers.
Therefore, using Color Key is essential for my workflow. However, whenever I activate the effect, the timeline color indicator shifts from yellow to red, which suggests CPU utilization rather than the GPU.
I'd appreciate any insights or suggestions you might have on how to enable GPU acceleration for Color Key.
Thanks in advance for your help!
 
 
Exporting Lossless 4k HDR 60fps 1 hour long video:
  • without Color Key, takes only 20-30mins.
  • with Color Key, takes 4-5hrs.
 
My PC Specs:
  • Ryzen 9 7950x3d
  • RTX 4090
  • Corsair Dominator Titanium 2x24 7200MHz

 

[text edited by mod]

TOPICS
Error or problem , Export , Hardware or GPU , Performance

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Community Expert ,
Dec 15, 2023 Dec 15, 2023

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Color Key is non gpu accelerated hence the long export time.

Try Ultra Key instead

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Community Beginner ,
Dec 15, 2023 Dec 15, 2023

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Thanks for the reply.

I couldn't make Ultra key removes a white background. Am I missing something?

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Community Expert ,
Dec 15, 2023 Dec 15, 2023

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Post screenshot of image.

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