NotMyFault Posted May 2, 2021 Share Posted May 2, 2021 Hi, it would be really great if the option "Preserve Alpha" would be accompanied by "Only Alpha": E.g. a live blur filter that only affects alpha channel instead of RGB channels. This option would really simplify many non-destructive workflows and eliminate lots of (destructive) workarounds. More general: i would like to have the option to select which channel gets impacted by filters or adjustments. Currently, only 3 adjustments offer this option (curves, levels, channel mixer). BeauRX, Wosven, Sullyman and 1 other 4 Quote Mac mini M1 A2348 | Windows 10 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080 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. Link to comment Share on other sites More sharing options...
loukash Posted May 2, 2021 Share Posted May 2, 2021 21 minutes ago, NotMyFault said: This option would really simplify many non-destructive workflows Hm… 3 clicks in the Layers panel and 2 keyboard shortcuts: But yeah, why not, it could be an interesting option. Quote MacBookAir 15": MacOS Ventura > Affinity v1, v2, v2 beta // MacBookPro 15" mid-2012: MacOS El Capitan > Affinity v1 / MacOS Catalina > Affinity v1, v2, v2 beta // iPad 8th: iPadOS 16 > Affinity v2 Link to comment Share on other sites More sharing options...
kirk23 Posted May 8, 2021 Share Posted May 8, 2021 I'd love it. So I could use inner glow fx , not blur btw, like an edge feather in Xara. It's possible to do in mask stack now but would be so much simpler and easier. End the layer stack would look so much simpler and elegant Quote Link to comment Share on other sites More sharing options...
NotMyFault Posted September 17, 2021 Author Share Posted September 17, 2021 On 5/2/2021 at 7:58 PM, loukash said: Hm… 3 clicks in the Layers panel and 2 keyboard shortcuts: But yeah, why not, it could be an interesting option. Copying a layer breaks non-destructive/ live workflows. I could use destructive blur, and use channels panels to select only affect alpha. But this would be an even simpler destructive workflow. But sometimes i need both the underlying pixel layers and the blur layer to be live layers. Having everything as live filter is the best of all features of Photo. Not having this for alpha channels only is a panful omission. Quote Mac mini M1 A2348 | Windows 10 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080 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. Link to comment Share on other sites More sharing options...
NotMyFault Posted January 29, 2022 Author Share Posted January 29, 2022 I found a magic trick / workaround - maybe a bug - providing this functionality indirectly. Never the less, it would be great getting there through the front door of an official functionality, as using groups could lead to other collateral damage. Quote Mac mini M1 A2348 | Windows 10 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080 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. Link to comment Share on other sites More sharing options...
KarlonCromwell Posted January 31, 2022 Share Posted January 31, 2022 On 5/2/2021 at 1:32 PM, NotMyFault said: Hi, it would be really great if the option "Preserve Alpha" would be accompanied by "Only Alpha": E.g. a live blur filter that only affects alpha channel instead of RGB channels. This option would really simplify many non-destructive workflows and eliminate lots of (destructive) workarounds. More general: i would like to have the option to select which channel gets impacted by filters or adjustments. Currently, only 3 adjustments offer this option (curves, levels, channel mixer). Will look into this a bit more when I start to do some editing in affinity. Quote Link to comment Share on other sites More sharing options...
NotMyFault Posted December 28, 2022 Author Share Posted December 28, 2022 Bump - needed more than ever Quote Mac mini M1 A2348 | Windows 10 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080 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. Link to comment Share on other sites More sharing options...
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