Anybody knows how to write out into PNG the animation frames the OpenGL viewport visualizer shows me?
This out into PNG:



I have pyrobakevolume1. It plays a beautiful animation and I don't need renderer, because it looks already perfect for pixel art.

Where ever I roll the camera and play my 200 frames of PyroFX fire, it should write out that exact GL viewport angle into PNG. Or some image format I can convert into PNG.

Is it possible?

Or should I use a third party software like ScreenRecorder?
I'm going to export the animation into OpenVDB for 3ds Max to render this fire in Arnold, because at least that I know, how.

But rotating the GL Viewport into an arbitrary exact angle and saving out everything from that - designated AREA? - like 'Area-render' in Maya/Max framebuffer, would be very excellent! Because it would be instant and the GL visualizer fireball already looks exactly the quality I need.