Interaction in visualisation (tk?) and ffmpeg

[davidcortesortuno]

Hi, I successfully ran some of the examples, however, the tk window does not let me zoom or interact with the visualisations in any way, except for the single mouse click to rotate the image. I installed tk via pip, is that the right way?

I also installed ffmpeg 7, but I keep getting the error Video encoding library initialization failed, encoding features are not available. . I'm using the latest dev branch.