If you want real-time recording as you play, try NVidia Shadowplay or MSI Afterburner (if you have a supported video card). They will record whatever is displayed on your screen, so if you set up a shot with the AH film viewer, you can play back the shot full-screen and use them to record it.
But as Skuzzy said, and has always said, if you export your AH film with the film viewer, you can turn up all the graphics settings and it will create a stutter-free high quality avi, albeit with no sound.