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Posted

GPU: Nvidia GTX 1080 ( Driver Ver: 445.75, 03/23/2020)
Affinity Photo Ver. 1.8.3.641

When making a selection using the marquee tool (or any tool that causes a selection really) my GPU usage spikes from 1-5% to over 50%.
This seems rather extreme for the simple act of selecting an area. If you need any more info, let me know.

before.png

after.png

  • Staff
Posted

Hey makail, welcome to the Affinity Forums. 

This is actually by design. The GPU is only really used to render what is on the screen so it shouldn't be having a performance impact on anything whilst the selection is active. We will try and use whatever resources are available so the fact we are using over 50% of the GPU doesn't really mean anything. I have the same card on my work machine and see similar numbers.

Posted (edited)
Quote

it shouldn't be having a performance impact on anything whilst the selection is active

It will have an impact on whatever else is competing for GPU resources. What exactly are you running on the GPU for a simple selection outline that requires that much processing? Looks like a improperly optimized shader to me.

Edited by makail
  • Staff
Posted

Affinity runs at 60fps so the marching ants are also running at that. The size of your display will also have an impact. So a 27" 4k would use more of the GPU than a smaller 1080p panel.

However, I've just spoken with the developers and they probably don't need to be updating so quickly so we can look at improving/capping this :) 

  • 4 years later...
  • Staff
Posted

The issue "[Win] Reduce how often an active selection (marching ants) updates " (REF: AF-1778) has been fixed by the developers in internal build "2.5.5.2589".
This fix should soon be available as a customer beta and is planned for inclusion in the next customer release.
Customer beta builds are announced here and you can participate by following these instructions.
If you still experience this problem once you are using that build version (or later) please reply to this thread including @Affinity Info Bot to notify us.

Posted

Awesome, glad to see this is finally addressed. Will lower the temperature on my laptop.

Note, as pointed out in this thread, the ruler also causes this problem. Hopefully that is addressed as well?

 

 

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