I just got done with a really nice cycles render and composite. I love how it looks in the composite preview, but when I go to export/save it as a PNG with alpha, it loses a lot of the color, and some of the compositing effects too. It almost seems like its using the initial render as an alpha mask. This issue does not happen when I export without transparency. If I export with a solid background, the result is as expected. This is an issue for me, as Im using this as part of a larger art piece.
I am using cycles, and will leave hopefully relevant nodes in the screenshots below.
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uwuziel
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Does this answer your question? Problem with rendered output files. That question has been closed as duplicate, but the topic has actually been asked dozens of times here, see not only the "duplicate" link there but also a few other questions linked in the answer there to read more about this problem. – Gordon Brinkmann Feb 13 '24 at 09:47
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https://blender.stackexchange.com/questions/57816/how-do-i-get-the-glare-node-to-output-transparent-instead-of-black-background/ https://blender.stackexchange.com/questions/43977/composite-blur-effect-cut-off-at-edges-with-transparent-background/44126#44126 https://blender.stackexchange.com/questions/177022/glare-effect-transperancy-problem/177030#177030 https://blender.stackexchange.com/questions/260675/glare-alpha-not-saved-to-png-file https://blender.stackexchange.com/questions/164895/rendering-with-a-luminous-outline-on-transparent-background/165275#165275 – Duarte Farrajota Ramos Feb 13 '24 at 10:13
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https://blender.stackexchange.com/questions/263759/blender-result-different-from-png-rendered/263761#263761 – Duarte Farrajota Ramos Feb 13 '24 at 10:14