https://i.ytimg.com/vi/0-IoIYsyba4/hqdefault.jpg This tutorial is about integrating cg into real footage with Blender Cycles. In the tutorial image based lighting (IBL) for an exterior scene is shown. To get proper shadows in Blender Cycles there are some render layers needed for subtractive compositing. You can download the blendfile from http://www.blendswap.com/blends/view/68138 The backplate and the spherical panorama…