How to record a video runtime and save it for playback ?

This question has been asked several times in the last eight months. Non realtime, you can use:

http://wiki.unity3d.com/index.php/ScreenShot$$anonymous$$ovie

There are a variety of commercial tools, some are mentioned in this answer:

http://answers.unity3d.com/questions/14612/creating-a-video-from-unity.html

i don't want to use any tools, i want to keep it simple. thanks for the wiki link, but i would like to know if there are any other possible ways of doing it ?

do you mean FRO$$anonymous$$ THE CA$$anonymous$$ERA (eg video of the user's face) or do you mean A VIDEO OF WHAT IS HAPPENING IN THE GA$$anonymous$$E or do you mean something else?

from the camera, i mean in game camera, e.g. main camera.

O$$anonymous$$, so utterly no connection here to the physical cameras which are attached to iPhones. Cheers!