Perspective no.1 has the user act as the main interaction element for they are invited to move around the work, it’s their perspective in relation to the combinations of surfaces that cause interaction. In the case of perspective no. 2 the work itself has the ability to move, rotating one or both of the circular discs reveals changes in transparency. But both thrive in combination with ambient light, the immateriality of light can be made physical though the use of the filters; as light waves move vertically and horizontally, the user can therefor play with the ability to block these wavelengths and in a way make light a tangible material.