Fahrenheit Posted December 25, 2022 Share Posted December 25, 2022 Greetings, Affinity Photo 2.0.3 Steps to reproduce: Take any raster layer, 8bit, sRGB Add Live Filter "Gaussian Blur" with eg. 10 px radius Change the opacity of Live Filter to 1% Change blending mode of Live Filter to "Overlay" Until now, everything seems to be fine. You are seeing an almost unmodified layer content. Now, change the Live Filter opacity from 1% to 0% First bug: Despite that blur itself is actually not visible, obviously the image is being applied to itself in Overlay blending mode, while You should be seeing unaltered image. For reference, You may want to convert the document to CMYK FOGRA39, and check there (it behaves correctly). You are still in sRGB. Grab the "Radius" slider and move it randomly. Image is being divided into semi-random areas, similar to screenshot below. Try to "merge" the Live Filter. The artefacts are likely to be embedded into layer pixels. This procedure takes "gaussian blur" as an example. Same glitchy beaviour occurs also when using different Live Filters. KR, NotMyFault 1 Quote Link to comment Share on other sites More sharing options...
cybermaster Posted January 2, 2023 Share Posted January 2, 2023 I have experienced the same bug. When a live filter layer's opacity is set to 0%, it will display as if it were set to 100%, with a sudden jump to the 100% appearance as it moves from 1% to 0%, exactly as you've described. I frequently use a Curves live filter on a layer with blend mode set to Luminosity (this is a good way to adjust contrast curve without affecting colors). This is when I first noticed this behavior. Quote Link to comment Share on other sites More sharing options...
walt.farrell Posted January 2, 2023 Share Posted January 2, 2023 While it seems that 0% is not behaving correctly, I'm curious what the use-case is for an Opacity setting of 0% on a Filter, rather than simply hiding the Filter? Quote -- Walt Designer, Photo, and Publisher V1 and V2 at latest retail and beta releases PC: Desktop: Windows 11 Pro, version 23H2, 64GB memory, AMD Ryzen 9 5900 12-Core @ 3.00 GHz, NVIDIA GeForce RTX 3090 Laptop: Windows 11 Pro, version 23H2, 32GB memory, Intel Core i7-10750H @ 2.60GHz, Intel UHD Graphics Comet Lake GT2 and NVIDIA GeForce RTX 3070 Laptop GPU. iPad: iPad Pro M1, 12.9": iPadOS 17.4.1, Apple Pencil 2, Magic Keyboard Mac: 2023 M2 MacBook Air 15", 16GB memory, macOS Sonoma 14.4.1 Link to comment Share on other sites More sharing options...
cybermaster Posted January 2, 2023 Share Posted January 2, 2023 2 minutes ago, walt.farrell said: While it seems that 0% is not behaving correctly, I'm curious what the use-case is for an Opacity setting of 0% on a Filter, rather than simply hiding the Filter? It's not that it ever stays at 0%, but it get's put down there as a starting point to slowly fade it up to find a spot where the blending looks good. Having it jump around suddenly makes this process awkward and annoying, and it points to a definite bug that may manifest itself in other ways we've yet to discover. Old Bruce and walt.farrell 2 Quote Link to comment Share on other sites More sharing options...
Staff Callum Posted January 24, 2023 Staff Share Posted January 24, 2023 Hi Fahrenheit, I have reproduced this at my end and have logged this with our developers for further investigation. I'll update this thread once I have more info. Thanks C Quote Please tag me using @ in your reply so I can be sure to respond ASAP. Link to comment Share on other sites More sharing options...
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