Hello my friend,
this is an example file for integrating cg into real footage. This file showcase image based lighting (IBL) for an exterior scene. To get proper shadows in Blender Cycles there are some render layers needed for subtractive compositing. The backplate and the spherical panorama are free to use with attribution CC by David Strebel.
There is a tutorial
http://www.youtube.com/watch?v=0-IoIYsyba4&feature=youtu.be
Happy Blending!__
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Dave- Using this great setup for my files now and BlendedSkies, and just added a file at http://www.blendswap.com/blends/view/70977 attributing to you.
Added another layer so you can use it with a straight HDR and no backplate. Works beautifully!
Very cool, thank you very much for the great video explaining it all.