Is there an easy way to create a HD movie from a game window?

[ingwik]

I haven't used SFML for a long while, delving into G suite and pedagogical resources for elementary schools instead.

In all this, I thought I would do a longer instructional video in 16:9 format with different animations. Problem is that few (none?) free programs offer animated 2D capacity with correct timing. But SFML do. The most valuable part for me is the possibility to use "views" to move around upon a larger picture.

What I need to know though, is if there is any kind of reasonable easy way to catch what happens in a game window sized to 16:9 and record it in full HD?

I need to be able to do two things; putting up a video on Youtube that might be of just reasonable good quality, but also have to have a HD quality example for my colleagues and pupils. Kids these days have problems with low res films in education

[eXpl0it3r]

Probably the simplest way is to get OBS Studio and capture your application.

Are your animations interactive or are they statically pre-programmed?
If everything is static, you could save each animation frame as image and then compose a video from it using FFmpeg or similar.

[ingwik]

I intend to use real world maps and have stuff walking, running, sailing and so on upon them to show what happened. I'll probably use way points + timers for activation so yes, it will be pre-programmed.

I'll take a look at OBS studio, thank you for your information eXpl0it3r. If it creates HD videos from SFML, I'll really gonna be happy.