What is Twixtor?
Twixtor is a plug-in that works with most popular video editing programs. To the best of my non-techie understanding, it takes two frames of a video and estimates what frames in between these would look like. The amazing thing is it does this really well. By estimating and then manufactoring these missing frames, action shots can turn into slow motion shots without the use of a high speed camera. Check out a this video shot at normal speed but then slowed down with Twixtor.
Use with Time-Lapse
I’ve known Twixtor could be used with time-lapse but I’ve never seen it in action. Now, jonni from the blog jonni on hd has released this video showing the dramatic difference this program can make. Off hand, I can think of two uses for this–as a way to slow down a video when the minimum frame rate makes the action too fast and to bring up a 25 fps video to a 30 fps video without changing the play length. Notice how the grass looks better in the Twixtor video, but especially look at how smooth the cloud motion is when the video is slowed to 70% speed.