Mike Webb Posted September 12, 2020 Share Posted September 12, 2020 Look at the screen shot below from the latest Windows release of Photo. Can that be right for the curves section? I know it's pretty monochromatic but it's not helpful. Quote Link to comment Share on other sites More sharing options...
Greyfox Posted September 16, 2020 Share Posted September 16, 2020 @Mike Webb Doesn't seem right that the two histograms are so different. That is not happening here in v1.8.5.703, see example. Windows 10 Pro, 1909 build 18363.1082 Quote Intel i7-10700 Gen10 CPU, 32GB RAM, Geforce GTX 1660 OC 6GB Windows 10 Pro 22H2, 1x 1TB M.2 NVMe, 1 x 2TB M.2 NVMe. Affinity APh, APu, ADe Link to comment Share on other sites More sharing options...
Mike Webb Posted September 16, 2020 Author Share Posted September 16, 2020 It doesn't always happen to here either 1.8.5.703 but I have this intermittent problem for some time now. It's possible that it's related to the use of Nik filters but I'm not certain. Quote Link to comment Share on other sites More sharing options...
Greyfox Posted September 16, 2020 Share Posted September 16, 2020 1 hour ago, Mike Webb said: It's possible that it's related to the use of Nik filters but I'm not certain. @Mike Webb Mike, for the image in your first post, what Nik plugin was involved. I have Nik Collection 3 here I can try. Quote Intel i7-10700 Gen10 CPU, 32GB RAM, Geforce GTX 1660 OC 6GB Windows 10 Pro 22H2, 1x 1TB M.2 NVMe, 1 x 2TB M.2 NVMe. Affinity APh, APu, ADe Link to comment Share on other sites More sharing options...
Mike Webb Posted September 16, 2020 Author Share Posted September 16, 2020 Color FX Pro, probably Tonal contrast. But I am by no means sure that's a common factor. I use curves a lot and this happens to me more than I'd wish. Sometimes no histogram at all. Quote Link to comment Share on other sites More sharing options...
Mike Webb Posted September 16, 2020 Author Share Posted September 16, 2020 I have no idea if this is normal but no histogram at all and this pretty much always the case with a selection. Quote Link to comment Share on other sites More sharing options...
Greyfox Posted September 16, 2020 Share Posted September 16, 2020 @Mike Webb With selections seems to be a bit hit and miss as to whether the curves histogram is shown here too, as can be seen from the two screen shots. Edit: Also just noticed, the curves mask icon in the second screen shot doesn't appear to be showing the selection. Quote Intel i7-10700 Gen10 CPU, 32GB RAM, Geforce GTX 1660 OC 6GB Windows 10 Pro 22H2, 1x 1TB M.2 NVMe, 1 x 2TB M.2 NVMe. Affinity APh, APu, ADe Link to comment Share on other sites More sharing options...
Mike Webb Posted September 16, 2020 Author Share Posted September 16, 2020 So not just me and a mildly frustrating bug? Quote Link to comment Share on other sites More sharing options...
Greyfox Posted September 17, 2020 Share Posted September 17, 2020 17 hours ago, Mike Webb said: So not just me and a mildly frustrating bug? I think it is a bug, but I actually don't see much if any benefit of the present histogram in the tone curve display. I refer to the main histogram when using curves.. The histogram in the curves pane doesn't change to reflect any changes made to the tone curve itself. (I seem to remember something about that being by design, but I really don't understand why that should be) and it doesn't appear to represent the condition within a selection like the one in PhotoPlusX8 did. I think there have also been issues raised in the past as to why it isn't in color in the Windows version, and why it can be really slow to appear (when it does appear). Maybe someone could explain to me exactly what it's purpose is meant to be. Quote Intel i7-10700 Gen10 CPU, 32GB RAM, Geforce GTX 1660 OC 6GB Windows 10 Pro 22H2, 1x 1TB M.2 NVMe, 1 x 2TB M.2 NVMe. Affinity APh, APu, ADe Link to comment Share on other sites More sharing options...
Staff Gabe Posted September 17, 2020 Staff Share Posted September 17, 2020 Hi both, We are aware of issues when you have a selection active. However, with no selections, it should be fine. It will be slower than the develop persona histogram, but this is expected. Quote Link to comment Share on other sites More sharing options...
Greyfox Posted September 17, 2020 Share Posted September 17, 2020 @Gabe Hi Gabe, OK, with no selections, can you tell me what the purpose is of having the histogram in the curves pane, when it doesn't respond to changes made to the tone curves?. Quote Intel i7-10700 Gen10 CPU, 32GB RAM, Geforce GTX 1660 OC 6GB Windows 10 Pro 22H2, 1x 1TB M.2 NVMe, 1 x 2TB M.2 NVMe. Affinity APh, APu, ADe Link to comment Share on other sites More sharing options...
Mike Webb Posted September 17, 2020 Author Share Posted September 17, 2020 Personally, I find the histogram useful as it gives me an indication of where I want to adjust the curve. I have my own simple starting points which relies on the histogram and then I work from there. Gabe may have a different suggestion. Quote Link to comment Share on other sites More sharing options...
Greyfox Posted September 18, 2020 Share Posted September 18, 2020 @Mike Webb In retrospect, my post missed the point. My problem or lack of understanding stems from the way I used the histograms in the old Serif PhotoPlus series. For an RGB Image in photo persona, my understanding is that the histogram in the curves pane simply shows a static mono display representing the combined RGB spread from shadows through mid tones to highlights, rather than it showing lightness. In the old Serif PhotoPlus series the static histogram in the curves pane closely matched the main histogram when that was set to display combined RGB, so to me the main histogram was able to provide the same starting point information as the static histogram in the curves pane, but also showed live the result of changes to the curves. So for me, the static histogram in the curves pane was sort of superfluous. In Affinity Photo, the main histogram isn't able to be set to show a single display of the combined RGB spread, or to show lightness as was possible in PhotoPlus. As I understand it the lighter blue only shows the overlap between R, G and B) and so I can't see the result of changes to the curves in the main histogram in the same way as I could in PhotoPlus. Quote Intel i7-10700 Gen10 CPU, 32GB RAM, Geforce GTX 1660 OC 6GB Windows 10 Pro 22H2, 1x 1TB M.2 NVMe, 1 x 2TB M.2 NVMe. Affinity APh, APu, ADe Link to comment Share on other sites More sharing options...
Mike Webb Posted September 18, 2020 Author Share Posted September 18, 2020 Equally, I understand what you're saying but I'm not bothered about the histogram updating live in the curves window as it's just a launch pad for me. Sadly at the moment neither of us is served fully by Affinity. Still love it though. Quote Link to comment Share on other sites More sharing options...
Staff Gabe Posted September 18, 2020 Staff Share Posted September 18, 2020 @Greyfox Feel free to pop a new post in the Features requests. @Mike Webb any chance you can attach a screen recording of your workflow? Mine seems to be fine with a simple setup as yours. Quote Link to comment Share on other sites More sharing options...
Mike Webb Posted September 18, 2020 Author Share Posted September 18, 2020 A video might be stretching it What I do is; use SilkyPix to create a TIFF from Fuji RAW - so I that is irrelevant Open TIFF in Affinity Duplicate the Base layer Then I might do some cloning to remove items which I have done in this example Select using select brush Use New Adjustment Layer Select Curves And get this It won't always happen like that. Sometimes it works just fine. No Nik or any filters on this one. If I delete the above layer, deselect and then choose curves for the whole image I get this No sniggering but I'd then use the curve in relation to the histogram to start my fiddling to get what I want like this maybe Hopefully I'm doing something stupid. Mike Quote Link to comment Share on other sites More sharing options...
Staff Gabe Posted September 18, 2020 Staff Share Posted September 18, 2020 Yeah but you have a selection active. I've already said that's a bug we're aware of Quote Link to comment Share on other sites More sharing options...
Mike Webb Posted September 18, 2020 Author Share Posted September 18, 2020 Sure yes, I thought you wanted to be reassured about my workflow. Quote Link to comment Share on other sites More sharing options...
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