Light Collage is an investigation on light as a physical material. This technique gives us a tangible way to create and manipulate images, with a similar effect as the "Blend Mode" from Photoshop.

We can render digital shapes, patterns, colours and typography using paper as a support for light.
With the use of a projector as a light source, and some optical objects such as prisms, mirrors and lenses, we can control, give direction, distort, and overlay the projected image to create an illusion of transparency, made possible by the Additive Color System also known as RGB.
by Caio Vita