Roden Crater is the life work of James Turrell, a sculptor whose medium is light - he creates visible immaterial objects by constructing spaces that bounce and

Roden Crater is the life work of James Turrell, a sculptor whose medium is light - he creates visible immaterial objects by constructing spaces that bounce and reflect light to create unreal spaces and objects. It used to be common for people to fall into his installations because they could not sense the boundary between their observer space and the art. I first become aware of James Turrell when a 3D graphics researcher during the late 80's. His work and creating 3D renderers capable of simulating his art was an inspiration. Side tangent: his writing about his art is the inspiration for the "Tyrell" character in "Do Androids Dream of Electric Sheep" (BladeRunner novel). I remember reading that in a PKD interview.