Is it possible to use a video for image-based lighting? When I discovered the use of HDRI to light a scene in Blender, I was blown away by the difference it made to my scenes.
What I'd like to know is whether it is possible to use a video to light a scene in the same way.
For example, if I had footage of a sunrise, could I use it to light my own scenes?  I realise that the video would not have the same dynamic range, but it's the combination of light levels and colour that I would like to use to light a scene of a forest clearing.  It's for an animated, projected backdrop for a theatrical play so the resulting video doesn't have to be be that photo-realistic.

I can't find anything in the Blender manual that would suggest it's possible, so I'm hoping somebody has found a way.  Otherwise I'm going to have to come up with some way of making a realistic sunrise.
you can create a plane and give a material that has a emission shader and the color is plugged in to a image sequence.

Note: you might have to set the fourth drop down menu to movie, and make sure that you the the frames property on the image sequence.