Thank you for your reply. I didn’t know you could have an animated texture in C4D, thanks for that tip. To be clear, are you suggesting making the PiP footage an animated texture in C4D then doing the time remap in C4D as well? Doesn’t that leave you with sped up PiP footage too?
I also thought about somehow negating the time ramp by applying it’s exact opposite to the b-roll footage upstream in the b-roll comp. Probably a pain to get to work though given the non-linear nature of the ramp.
I also thought about turning the PiP into a green screen and keying in the b-roll, but I worry that the 3d elements passing in front of it, especially with motion blur, would look bad.
Thanks again for you help!