Optical Flow Ghosting Bug in PPro but not AE
- March 11, 2024
- 12 replies
- 1107 views
I am working with some Mavic 3 drone shots and I need to slow down the footage, however when I use Optical Flow for the frame interpolation, I get a flickery - more like Frame Blending result in the preview window as well as the export. When I do the same speed reduction with the same Optical Flow interpolation in After Effects, it smoothes wonderfully and as expected.
This was tested on both a Windows 11 PC and an M2 Max Macbook Pro, the preview and export results are the same on both machines. I have created sequences/comps directly from the clips themselves, and I double checked the export settings to be sure Optical Flow was selected as the frame interpolation option.
I am currently using Premiere Pro 23.5.0, and I have seen this same bug/ weird result in earlier versions of Premiere Pro as well. I am using After Effects 23.6.2 and all the Pixel Motion/Optical Flow slow motion renders out correctly.
I would prefer to not transcode footage between After Effects and Premiere Pro just because the Optical Flow in PPro isn't behaving. I have attached a comparison showing the buggy Premiere Pro Optical Flow interpolation vs the After Effects correct Optical Flow interpolation.
Has anyone else seen this? Would appreciate any pointers if there is a setting to fix it! Otherwise I'm happy to help clarify anything if this is a proper bug.
Thanks for your time!
