Sculpt 3D is a raytrace application released in October 1987 for Amiga

Amiga

The Amiga is a family of personal computers that was sold by Commodore in the 1980s and 1990s. The first model was launched in 1985 as a high-end home computer and became popular for its graphical, audio and multi-tasking abilities...

 computers programmed by Eric Graham. Sculpt 3D was the first ray tracing application released for the Amiga computers. It proved that raytracing could be done on home computers as well as on mainframes. Years later, the company Byte by Byte released a port for the Apple Macintosh.

The Amiga Juggler

The first demo that showed the raytracing capabilities was an animation

Animation

Animation is the rapid display of a sequence of images of 2-D or 3-D artwork or model positions in order to create an illusion of movement. The effect is an optical illusion of motion due to the phenomenon of persistence of vision, and can be created and demonstrated in several ways...

 of a juggler juggling three chrome balls. Even though the juggler was constructed out of spheres, the balls' reflections and movement made it look realistic. The juggler demo was generated on an experimental version of Sculpt 3D. The animation, released in January 1986, generated so much interest that the full 3D application was programmed. See the animation in AVI formathttp://mywebpages.comcast.net/erniew/getstuff/juggler.avi

Sculpt 4D

Sculpt 3D created still images, and a tool compiled an animation from these still images. Sculpt 4D added animation capabilities to Sculpt 3D. It allowed movement of objects by setting keyframes.