There are very few formats allowing you to preserve original resolution above 4k/uhd. In general Resolve should be the last step in the image processing pipeline with the output at the deliverable resolution, though it depends on the specific work flow.
You might explore using cineform codes. Keep in mind that once debayered, r3d and other images originated as raw, will occupy at least 3 times the storage.
Dmitry Kitsov,
Blackmagic Design technical support agent