Krion Posted July 18, 2021 Share Posted July 18, 2021 Hi guys, I was hoping I could get some help. I just want to overlay one image over another. But the "Over" composite method changes colors. How can I retain these and just layer them unto one layer? Quote Link to comment Share on other sites More sharing options...
Krion Posted July 18, 2021 Author Share Posted July 18, 2021 Here is the hip file and the images if someone wanted to take a look: overlay.hiplc rop_comp2.exr rop_comp1.exr Quote Link to comment Share on other sites More sharing options...
Krion Posted July 18, 2021 Author Share Posted July 18, 2021 (edited) Using "Exclusive Or" with "Maximum" as the Alpha Operation kindof seems to work, altho with some artefacts. (Particularly when using multiple inputs like this on a Layer COP) But still wondering; what's happening with the "Over"? Shouldn't this be the most common and easiest operation? Or am I missing the mathematical ormtechnical definition of 'Over' somehow? Edited July 18, 2021 by Krion Quote Link to comment Share on other sites More sharing options...
Richard Posted March 8, 2023 Share Posted March 8, 2023 (edited) My guess is your images dont have a proper alpha. The over expects an alpha doesnt find one so it doesnt know what you want to keep so its doing some kind of blend which is changing your colours. Hit A over the viewer to check the alpha. You can use a channel copy to copy one of the channels to an alpha. Edited March 8, 2023 by Richard Quote Link to comment Share on other sites More sharing options...
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