4 ms·
More specifically, the reaction to lack of blur. You can get 60 fps upconverted footage from motion interpolation to not exhibit the effect by adding copious g
by AstralStorm 4y ago
More specifically, the reaction to lack of blur.
You can get 60 fps upconverted footage from motion interpolation to not exhibit the effect by adding copious gaussian motion blur.
The same problem (plus perceived judder due to low fps) appears if you play a video on a screen equipped with correctly tuned strobe backlight.
It's one of the reasons as to why simple kernel interpolation (blurmotion) with most kernels does not exhibit this effect either.
- ubercow13 4y agoWhy would there be a lack of blur? The 24fps (say) footage will start with more blur as the shutter speed will be slower and this blur will remain when interpolated to 60fps. It would surely have a physically impossibly high amount of blur after interpolation.
- dagmx 4y agoInterpolation doesn’t change shutter angle which is what causes motion blur to have a specific aesthetic look, so when interpolated it looks wrong for the frame rate. You’re right in that it doesn’t change the amount of blur, I’m not sure why the person you’re replying to thinks that. But it does change the aesthetic of the blur. Perhaps they’re thinking of the issue with the Hobbit where the higher frame rate at a given shutter angle (180 let’s say) that shortened the blur compared to a traditional 24 fps film. They adjusted this for the second hobbit film to leave the shutter open longer (not a 360 shutter, but something like a 270) to bring back some of that feeling.