optical flow as unreal post process material?

[BananableOffense]

Computing dense optical flow with scene capture component 2D

Hm, that makes me think a UV is centered on (0,0) that needs to be centered on (0.5,0.5) or something along those lines. Just did a real quick mockup [OpticalFlow] [image] [image] I think this is right? Maybe not exact for your case but maybe it’ll help… Saturation node is just there to make the color more obvious. Texture sample is the flow field gradient.

This thread has an attempt. It was using motion vectors which can be directly sampled by the post process materials.