Match Depth of Field of Background Image Either using Cycles or Blender Render - Need to match the depth of field on an object to a background image. Basically, I want to have a background image (that has DoF in it by itself), mapped flat on the background, and then a 3D object with matched DoF - so the DoF is only applied on the 3D object but NOT on the background image. Any hints welcome!
If you enable Transparent under Film, then the background of the rendered image will be transparent, allowing for it to be easily composited with another image: