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• Single Frame is for a still render
• Cross-frame is for an animation or series of frames

Remap

This is described in our Filtering documentation

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• Variance: Adding this will create a variance image of the specified channel source. Variance shows where more samples may help resolve and image.
• MSE: This is the same as variance but divided by the number of samples, basically normalized variance.
• Even: This renders the even numbered samples to this AOV
• Odd: This renders the odd number of samples to this AOV

Remap

This is described in our Filtering documentation

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