Record OpenGL window?

[WillBoxOwO]

Hello there.
Ive been trying for the last couple of days to make "SimpleScreenRecorder" record an OpenGL powered window.
Only thing is, I dont know how to set it up. I searched everywhere, even on the developpers s page... All of the provided instructions I tried doesnt work- I think theyre not suited for Raspbian or something.
My goal? Well, Id like to record my Quake 3 and Minecraft Pi gameplay, for example.
I did try VNC, but the outputted footage is about 1-2fps.
I also tried RecordMyDesktop, but again, it doesnt record the gameplay. It just gives me a black window instead... Like SimpleScreenRecorder does.

Heres what ive been looking at for the last couple days:


Anyone knows how to record openGL footage?
Cheers.

[topguy]

Anyone knows how to record openGL footage?

https://www.elgato.com/en/gaming/game-capture-hd60-s

I believe an external unit is the only solution that will give a good quality recording.

[WillBoxOwO]

Anyone knows how to record openGL footage?

https://www.elgato.com/en/gaming/game-capture-hd60-s

I believe an external unit is the only solution that will give a good quality recording.

The piece of software I screenshotted is pretty good at recording (30fps footage). That elgato is just too pricy compared to the Raspberry Pi.

[topguy]

The piece of software I screenshotted is pretty good at recording (30fps footage).

Also OpenGL or GLES applications ?

[WillBoxOwO]

Im trying to make OpenGL capture works.