Randall Lee Reetz Posted April 12, 2021 Author Share Posted April 12, 2021 Here is a fun thing to do… go to the top of this page and search for: "alpha channel color value"… Quote Link to comment Share on other sites More sharing options...
Randall Lee Reetz Posted April 12, 2021 Author Share Posted April 12, 2021 If you can't know what color Affinity is using for the alpha channels it exports, you can't make use of exported documents with alpha channels. There must be a way to query the alpha channel value in an image document exported from Affinity Photo!?!? Quote Link to comment Share on other sites More sharing options...
Old Bruce Posted April 12, 2021 Share Posted April 12, 2021 17 hours ago, Randall Lee Reetz said: I want to draw out a shape, apply a gradient to that shape. Set the edge nodes of that gradient to transparent at one edge, something not transparent in the middle somewhere, and transparent at the other end, I think you need to have the two edges the same colour as the middle node in order to have an even, constant transfer to 0% (zero) opacity which will not exhibit the odd difference from left to right as your first Screenshot shows. 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...
Frozen Death Knight Posted April 12, 2021 Share Posted April 12, 2021 @Randall Lee Reetz I am going to make a brief explanation on how the Gradient Tool works in Affinity as well as provide a video demonstration. Hopefully it will solve your problem. The default colours for the tool are always black and white. The colours inbetween each end are a mix of both colours, so when you create a new gradient node in the middle you will just create a colour that is 50/50, in this case grey 50. The actual colour of a gradient is super important, since when you lower the opacity of any of these points down to 0% the colour on that node will still be mixed with the other gradient nodes. If you want a pure black gradient with opacity you must make every node 100% black, even on the nodes that are fully transparent. This applies to every single colour, so you will have to match each node if you want a pure coloured gradient with opacity. Desktop 2021.04.12 - 19.05.50.01.mp4 As for your weird PNG artefacts, I have no idea how that happened and I don't think anyone can help you with that unless you provide an actual file. Quote Link to comment Share on other sites More sharing options...
Randall Lee Reetz Posted April 12, 2021 Author Share Posted April 12, 2021 What color definition (and color space) does Affinity Photo use as its mask color? Quote Link to comment Share on other sites More sharing options...
walt.farrell Posted April 12, 2021 Share Posted April 12, 2021 Masks don't have a color, as far as I know. They're grayscale. 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...
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