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Grouped gaussian blur live filter generates glitchy artefacts and halo


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When inside a group containing only itself or other regulation and live filter layers, the gaussian blur live filter doesn’t work correctly. It cause a halo instead of a blur, but, most seriously, it generates very conspicuous visual glitch when the affected layers are manipulated with the move tool.

 

Steps to reproduce:

1st create a new document, then create a black vector square inside of it

2nd add a gaussian blur live filter layer, move it outside of the layer within which it is created

3rd select the gaussian blur live filter and make a group containing only it: this creates the halo effect, instead of the blur

4th select the vector square and displace it with the move tool: this creates a glitchy trail

In the video, I also show how it interacts with a bug previously reported by me, which causes live filter and regulation layers to erroneously affect unintended layers. I believe it was noteworthy, because first in the video both square had a halo but just one created the glitches, then the gaussian blur group was moved out on top of the layer hierarchy, which caused both vector square to leave a trail.

For this I have no handy temporary solution, other than not grouping gaussian blur live filter layers without also including a pixel, vector or text layer.

Possible solutions like restarting the device, force quitting the app, and creating a new document were tried without success.

 

Regarding custom settings, I’ve set the retina rendering only toggle to on, but I don’t know if it is relevant.

System: iPad Pro 11 3rd gen

OS version: 15.2.1

Affinity Photo for iPad version:

1.10.3.267 (as shown in the app)

1.10.3 (latest release in the App Store)

Thanks and bye.

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Yes I can repeat that, so not a problem with your iPad, definitely odd and never come across that before. Weird but easy to work around at least. The Dev's will either already have this logged or will soon !

Affinity Suite costs less than a single night on the toon, few beers and curry, just let that sink in.

Affinity Photo, Designer, Publisher 1.10 and 2.0 on macOS Ventura beta on M1 Mac Mini 16GB 1TB
Affinity Photo, Designer, Publisher 1.10 and 2.0 on Windows 10 Pro.
Affinity Photo, Designer, Publisher 2.0 on M1 iPad Pro 11” on iPadOS 16. beta.
 

https://www.facebook.com/groups/AffinityForiPad

https://www.facebook.com/groups/AffinityPhoto/

 

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This seems to be another symptom of adjustments / filters affecting the alpha channel get broken when nested to a group.

afp-4502

assorted related reports (bug affects all platforms):


 

Mac mini M1 A2348

LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5

iPad Air Gen 5 (2022) A2589

Special interest into procedural texture filter, edit alpha channel, RGB/16 and RGB/32 color formats, stacking, finding root causes for misbehaving files, finding creative solutions for unsolvable tasks, finding bugs in Apps.

 

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