Ram C. Kumar Posted September 1, 2019 Share Posted September 1, 2019 Hi, Few days back I read a tweet from troy_s (Troy James Sobotka), about "How to check any image editing software that treats the alpha channel from an EXR file correctly?" I checked the file with affinity photo and got different results. Here is the tweet link. Click here You can see how Krita and Fusion treating the alpha channel from the same exr file. And, I have opened the exr and enabled (associate openexr alpha channels - in preference > color). Please check the result in screenshot 2 And i have opened the image after disabling ("associate openexr alpha channels - in preference > color") I can't see the candle light with the background layer. I could see only the black background, instead of alpha enabled candle light and color background. - screenshot 1 And, I checked the file in krita and BMD Fustion. Those software's showed the candle light with alpha. Please check the screenshots - 3,4 I have attached that exr file here. I'm not sure whether its a bug. And, I'm sorry if my English is not good. candle.exr Quote Link to comment Share on other sites More sharing options...
Staff Gabe Posted September 6, 2019 Staff Share Posted September 6, 2019 Hi @Ram Kumar, Sorry for the delayed reply. For unassociated alpha, you would need to tick all 3 boxes (Associate[...], Post divide[...] , Perturb[...]) . It will then treat the channels correctly and you will see the flame if you have a background. Thanks, Gabe. Quote Link to comment Share on other sites More sharing options...
Ram C. Kumar Posted September 6, 2019 Author Share Posted September 6, 2019 Hi @GabrielM, Thank you for the replay. I enabled those three options in color under preferences. And It shows the flame with the background. Thanks again. Quote Link to comment Share on other sites More sharing options...
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