Juraj Posted February 8, 2017 Share Posted February 8, 2017 Hello, I am having strange issue - renders coming out of mantra aren't displayed consistently in various apps. I believed that I would be safe with EXRs as they are linear and should be properly displayed in apps. Pixel data are identical when inspected pixel by pixel. However I noticed slight difference when displayed in mplay, nuke, rv, djv_view Any ideas? I made sure that in Nuke I am loading linear exr and no custom lut / IP is being used in viewer. I attached sample exr so that you can test it out. Thanks, Juraj img.exr Quote Link to comment Share on other sites More sharing options...
Juraj Posted February 8, 2017 Author Share Posted February 8, 2017 Here is another frame compared in different apps. Quote Link to comment Share on other sites More sharing options...
younglegend Posted February 8, 2017 Share Posted February 8, 2017 I wana say its because of different color space and gamma values of different viewers but...i'm not sure whether that's it. https://www.sidefx.com/forum/topic/41179/ Quote Link to comment Share on other sites More sharing options...
Juraj Posted February 8, 2017 Author Share Posted February 8, 2017 Hi, thanks, displaying it in Nuke as linear and doing color correction to gamma 2.2 seems to provide the same results. So what should be the correct workflow to achieve the same look? Using Grade node with 2.2 gamma as IP? Quote Link to comment Share on other sites More sharing options...
younglegend Posted February 8, 2017 Share Posted February 8, 2017 Change to Gamma2.2 on your nuke viewport from sRGB. Houdini mplay uses Gamma2.2. Quote Link to comment Share on other sites More sharing options...
Juraj Posted February 8, 2017 Author Share Posted February 8, 2017 I tried to generate in Nuke linear-srgb lut, but it doesn't seem to work in mplay. There is still noticable offset. However using the generated lut in Nuke perfectly matches this color space transformation. Quote Link to comment Share on other sites More sharing options...
Juraj Posted February 8, 2017 Author Share Posted February 8, 2017 So it seems like mplay is not interpreting lut correctly :/ Quote Link to comment Share on other sites More sharing options...
Juraj Posted February 8, 2017 Author Share Posted February 8, 2017 Everything well explained here. https://www.sidefx.com/forum/topic/37329/ Still curious why mplay does not interpret .blut lut correctly. With lut from the topic I got match between mplay and nuke. Quote Link to comment Share on other sites More sharing options...
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