What's the best way to make a sprite sheet (texture atlas) from a video?
In my case, I have videos of animated character expressions (e.g., smiling, frowning, sad, excited), which I intend to use as frames on quads in my app. I have video sized for retina 2x of a small character, so it's approx 150px square for a 75px character, with alpha/transparency. My animator can output any common format. I'll have 50-100 frames. I do not need a power-of-two size output, any rectangle is ok. I'm working on MacOS.
Is the best workflow still: video -> folder with PNGs -> TexturePacker
Or is there any smarter way to do this? I'll be having a lot of iterations, so I'd like to make it as easy and fast as possible.
There are two older questions from 2010 and 2012 about making sprite sheets.