Poor Rendering of live filter with "Metal Compute" Hardware acceleration

[paschulke2]

Hi,

Enabling "Metal compute acceleration" reduces the quality of image rendering when using live filters, e.g. the clarity live filter. Here are four screen shots to show the effect. The windows on the left side are without "Metal compute acceleration", the windows one right side have "Metal compute acceleration" enabled. The top screen shots are taken the clarity filter off, the bottom ones with the clarity filter on. The clarity filter was set to 0% (no effect). As you can see the rendering of the image on screen gets blurred with metal compute and the clarity live filter. If you export the image or merge the pixel layer with the liver filter, the result will be ok (no blurr). Please look at the image attached in 100% zoom in order to see the effect.

Edit: The image file is RGBA/16. iMac Retina 5k, Mojave 10.14.5, Radeon Pro 570 (4GB), 48GB RAM

This bug makes it impossible to judge image quality with live filters.

Kind regards,

Thomas

 

 

Edited June 10, 2019 by paschulke2
Clarification (RGBA/16, System)

[MEB]

Hi paschulke2,
Welcome to Affinity Forums
Thanks for your report/comparison images. I'm checking this here on my system and will log it for the dev team. When possible please also include/attach the original image/file used in the comparisons or reported issue so we can quickly check things up. Thank you.

[paschulke2]

Hi,

I can't post this image here but you could post a dropbox link for me.

Kind regards,

Thomas

[TomM1]

I can confirm the, live filter, clarity blurry effect at 0%.

This is not a problem with clarity from the filters menu.

[MEB]

Hi paschulke2
No worries. Here's the link. Thanks for providing the file.

[Panana]

I’ve got the exact same issues when using the high pass filter on the ipad 1.7 version. It it only get clear once when you merge