I get asked a lot about twixtor. People LOVE slow motion. There is nothing better than capturing at 2564 frames per second like you can on a Phantom (check out my mini doc with Flex footage here!) but that is out of the price range of most of us. 60FPS is the most we can get out of our cameras generally. So that is where Twixtor comes in. A very clever plug in for AE and FCP. It’s tricky to get right as you need to shoot a certain way and do a fair bit of post…but the results can be amazing.
Thanks to Danny Cooke for this guest blog post!
In the video DSLR era, slow motion has become extremely popular. For most of us the price of buying or even renting a high speed camera is by far out of reach. In Elliott and my short film Incendium, we wanted to show fire breathing in beautiful slow motion with the fire illuminating a nearby water fountain.
These elements (fire and water) are by far the hardest things to interpolate and predict. So using slow motion software such as Twixtor, it’s hard to escape the common warping artefacts. But using some basic camera techniques and Twixtor settings, we were able to obtain a beautiful and clean slow motion effect free of warping. Elliott wanted to share his knowledge of Twixtor so that everyone could benefit from getting the best results out of this extremely powerful program.
In the first part of the tutorial Elliott demonstrates the main principles of of Twixtor which you can apply to any video, and how to tidy up any unwanted warping.
Before you start, for best results use a shutter speed that will match your final framerate to avoid blurry slow motion. Also, use the highest framerate setting on your camera possible e.g. 60p, 60i or if you are using a 5D Mark II use 30p; The more frames Twixtor gets to play with, the better!
In part 2, Elliott explains Twixtor Pro and how you can take advantage of open and closed masks to help calculate where the pixels should move frame to frame. Resulting in a far better interpolated image.