As the title says, is there a way to render and save 2 separate image sequences that are equal but one is denoised and the other is not, while only rendering once? So that i can put both of them into an editing software and manually apply the denoise only in the parts of the images that need it?
If you use the compositor, you can add a file output node that can save as many different images as you want. The render layer should give you the noisy version and the denoised version.
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Good evening @SorenTheOutcast! As @SterlingRoth said, a File Output node is the way to go. I’ve given you a sample setup saving out to, in this case, a multilayer EXR:
If you want to load it back into the compositor and work with each layer (I’ve used a simple Mix node to combine them back together), remember to set your Color Space to Linear:
Lastly, as pointed out in this post (https://derflow.medium.com/why-you-should-not-use-png-files-for-image-sequences-27f453dde0c0), PNG has some drawbacks in export, import, and file size depending on your use case, so instead of two PNG files - throw both noisy and denoised render layers into the same EXR file - just a recommendation. Happy Blending!