title: Record THREEJS animation
body: <p>I want to be able to record 4k videos of my threejs scene at 60 fps. I have tried ccapture and canvas.captureStream(). They have unreliable effect on my frame rate and hence there are a lot of frame drops. The scene is able to play smoothly at 60 fps but when we add mediaRecorder (<a href="https://developer.mozilla.org/en-US/docs/Web/API/MediaRecorder" rel="nofollow noreferrer">https://developer.mozilla.org/en-US/docs/Web/API/MediaRecorder</a>) the fps drops as low as 4fps. Can anyone provide any solution for the issue? </p>