Michael or Something Posted March 15, 2019 Share Posted March 15, 2019 1. Open an image 2. Filters - Colours -> Erase White Paper 3. Add any adjustment layer. It ignores the image and the sliders have no effect. If I add a new pixel layer beneath the image and fill it with white, then the adjustment layers appear to work on the image, but when I hide or remove the pixel layer, the adjustment effect disappears with it. It doesn't seem to matter how layers are grouped. Am I missing something here? Surely I should be able to apply adjustments to images that happen to have some transparent areas. Quote Link to comment Share on other sites More sharing options...
Old Bruce Posted March 15, 2019 Share Posted March 15, 2019 9 minutes ago, Michael or Something said: 1. Open an image 2. Filters - Colours -> Erase White Paper 3. Add any adjustment layer. It ignores the image and the sliders have no effect. If I add a new pixel layer beneath the image and fill it with white, then the adjustment layers appear to work on the image, but when I hide or remove the pixel layer, the adjustment effect disappears with it. It doesn't seem to matter how layers are grouped. Am I missing something here? Surely I should be able to apply adjustments to images that happen to have some transparent areas. I am not seeing that here. Could we see your Layers Studio in a screen shot? Quote Mac Pro (Late 2013) Mac OS 12.7.4 Affinity Designer 2.4.1 | Affinity Photo 2.4.1 | Affinity Publisher 2.4.1 | Beta versions as they appear. I have never mastered color management, period, so I cannot help with that. Link to comment Share on other sites More sharing options...
Staff Dan C Posted March 15, 2019 Staff Share Posted March 15, 2019 Hi Michael or Something, Welcome to the forums I too have tried to replicate this and I'm not seeing the same results that you are. If you could please attach a screenshot or a copy of your .afphoto file we can look into this for you! Quote Link to comment Share on other sites More sharing options...
- S - Posted March 15, 2019 Share Posted March 15, 2019 I suspect you're using the 'Erase White Paper' filter on a black and white image? In which case, what you see on the screen isn't actually varying shades of grey (RGB), but varying alpha levels (A). If you're trying to use Levels and Curves on it, the Levels and Curves adjustment layers allow you to adjust the alpha channel by changing the drop-down from 'Master' to 'Alpha' (see below screenshots for layer layout, as the Levels/Curves adjustment layers need to be above the target layer rather than 'Child' layers; not sure why). You can also change the colour by using 'Colour Overlay' in Layer Effects (FX). Quote Link to comment Share on other sites More sharing options...
R C-R Posted March 16, 2019 Share Posted March 16, 2019 10 hours ago, - S - said: (see below screenshots for layer layout, as the Levels/Curves adjustment layers need to be above the target layer rather than 'Child' layers; not sure why). Does that seem like a bug to you? Adding a Levels adjustment to a file with a single RGB pixel layer in Affinity Photo 1.6 on my Mac with that layer selected adds it as a child layer. In that default position changing the RGB > Master or color black & white levels works as one would expect, but changing the RGB > Alpha levels has no effect at all ... unless the black level is set numerically higher than the white level, in which case nothing on the pixel layer is visible. In the current 1.7 beta the behavior is the same, except that even with the pixel layer selected, the beta places the Levels layer above the pixel layer by default. In both apps, I used the Erase Brush to create some partially & fully transparent areas on the pixel layer so there was some variation in its Alpha levels. Quote All 3 1.10.8, & all 3 V2.4.2 Mac apps; 2020 iMac 27"; 3.8GHz i7, Radeon Pro 5700, 32GB RAM; macOS 10.15.7 Affinity Photo 1.10.8; Affinity Designer 1.108; & all 3 V2 apps for iPad; 6th Generation iPad 32 GB; Apple Pencil; iPadOS 15.7 Link to comment Share on other sites More sharing options...
lepr Posted March 16, 2019 Share Posted March 16, 2019 . R C-R 1 Quote Link to comment Share on other sites More sharing options...
R C-R Posted March 16, 2019 Share Posted March 16, 2019 (edited) 20 hours ago, Dan C said: I too have tried to replicate this and I'm not seeing the same results that you are. You should be able to replicate the issue if you apply a Levels adjustment in the default 'child' layer position & try to adjust Alpha values, due to the bug @- S - mentioned. Edited March 16, 2019 by R C-R Fixed wrong attribution -- thanks >|< Quote All 3 1.10.8, & all 3 V2.4.2 Mac apps; 2020 iMac 27"; 3.8GHz i7, Radeon Pro 5700, 32GB RAM; macOS 10.15.7 Affinity Photo 1.10.8; Affinity Designer 1.108; & all 3 V2 apps for iPad; 6th Generation iPad 32 GB; Apple Pencil; iPadOS 15.7 Link to comment Share on other sites More sharing options...
lepr Posted March 16, 2019 Share Posted March 16, 2019 . R C-R 1 Quote Link to comment Share on other sites More sharing options...
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