Definition of this: a photographic technique in which a subject is filmed in front of a blue background so as to allow matte compositing of the film with other footage; also : the blue background
One day workshop creating a narrative by making cardboard props to shoot film using this technique theme: picnic, we was basing our film on the psychedelic elements of Alice in wonderland.
As you can see from the photos, people were in either blue suits or hidden by blue fabric
Creating the illusion of the props being an important aspect of this process. ( video to follow having problems uploading at present)