Probably my first beef ever about this app.
I have brought this up before on others posts but I have to start my own.
This is the third project Ive had to use Optical Flow.
Its seems to be bunk when I use it.
Ive had major problems with snowboarding videos, then some basic motions and now I have a close to static shot of trees and my camera moves maybe for a few seconds.
Im still get that warpy messy look on the screen.
I have to avoid and use Frame Blending which isnt that great.
This is all normal for any optical flow process. It's entirely dependent on colors, contrast, detail in the background and horizontal camera motion. Some shots are great and others a mess. If you want something with a little more control, buy the Twixtor plug-in. But, it will not be perfect, either.
[Eric Santiago]"I guess next time shoot this stuff with a Phantom ;)"
The last job like this I worked on, we had the DP shoot everything with Alexa at 120fps. "Normal time" footage was sped up 5x to achieve 24fps (with sync sound) and a few shots were slowed even more via Twixtor to the equivalent of 1200fps.
[Eric Santiago]"Oliver how was the results using Optical Flow?"
More artifacts than Twixtor. Mainly more apparent image stretching/morphing in the part of the image that I needed to keep clean. I ended up doing the final effects with Twixtor in AE. The other speed-ups (120 x 5 = 24fps) didn't require optical flow.