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

Question

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]

Ann Bens · Answer

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

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