This video shows how the Lightbox GLSL shaders in Action react to the normals of 3D objects in the Action 3D Composite. So the normals position and orientation in 3D space will affect how the cast Lightbox shader reacts to flat surfaces and 3D geometry. There are also additional settings to control the Lightbox Normals as well as the option to re-programme how the Lightbox shader impacts on the scene as well as the final render.