Blur brush tool ineffective when hardware acceleration is enabled

[pmcabinet]

This issue occurs in Windows 10 Pro (x64) v2009 (build 19043.1415) with NVIDIA GeForce GTX1050 GPU. System is fully updated with latest Studio Driver from NVIDIA. Earlier versions of NVIDIA driver also suffer.

I'm relatively new to AP (v1.10.4.1198) so have only started to use brush tools recently. Finding the blur brush tool not working I did some searching and discovered reports of issues with hardware acceleration going back quite a long time. HSL dialogue also seems to suffer. It was reported that disabling HA cures the problem, which indeed it does; but then other processes become decidedly less friendly (i.e. slow!).

I've not found a topic that addresses directly the GTX1050, hence this post.

Since this seems to be a long running affair, is it something we have to live with or can we expect a fix? I really don't want to go back to Lightroom or Photoshop!

 

[PetervL]

I can confirm this issue with Open CL on. Also affecting sharpening brush.

Regards Peter

Win 11 i7 16Gb GTX1660super

[pmcabinet]

Thanks for confirming, Peter. Using AP without hardware acceleration is rather unpredictable (crashes on complex processes) so if you find any answers do post here!

Happy New Year

Peter (me!)

[Lem3]

Blur brush works for me using OpenCL and GTX1660Ti, Studio driver 472.84.

[PetervL]

9 hours ago, pmcabinet said:

Thanks for confirming, Peter. Using AP without hardware acceleration is rather unpredictable (crashes on complex processes) so if you find any answers do post here!

You're welcome. I don't actually experience any crashes at all, with or without Open CL.

Peter

[stokerg]

Hi @pmcabinet,

We already have this issue logged with the Dev team.  I've updated the report with a link to this thread, so we can update you when its been resolved  

For now, the only workaround is to disable openCL.

[hawk]

I'm seeing the same issue on Apple M1 with "Metal compute acceleration".

[Gnobelix]

On 1/5/2022 at 9:33 AM, stokerg said:

For now, the only workaround is to disable openCL.

Hi @stokerg,

Only a partial solution to the problem, because then the opacity of the blur brush tool can no longer be adjusted. The opacity can only be regulated via the Flow option.

 

Cheers