I recently acquired a new computer and happened across the project file from 2015 for “Rhythm” animation. This originally took 10 days to render at 1280×720. I am now re-rendering at 4k resolution using the newer version of the software (Blender) with new render engines. Attached are a BEFORE and a NOW render of the same shot. If I let it render for a couple weeks, it would be even better, but this is more of a stress test for the new computer and this version will be completed in 5 days of rendering.