Display interposing a physical object within a three-dimensional volumetric space

A method for adapting a visual display unit, comprising:

• providing a first screen in a first focal plane, wherein said first screen displays a first image;
• providing a second screen in a second focal plane distinct from said first focal plane, wherein said second screen displays a second image, and wherein said second screen at least partially overlaps said first screen;
• providing a physical object located between said first screen and said second screen, wherein at least one of said first and second images is displayed in relation to said physical object.

The method of 19, wherein said first focal plane comprises a foreground, wherein said first screen comprises a transparent display, and wherein said second screen comprises an opaque display.