(computer graphics) A technique that produces realistically shaded images by projecting imaginary light rays to determine which parts of an object should be illuminated.

(physics) A path a photon or a group of photons takes through space, visible as a column of light. / (idiomatic) An inspiring or enlightening person or thing.

attributive form of gamma ray

(computer graphics) The calculation of intersections between a ray and a surface.

Any of a group of cartilaginous fishes in the family Myliobatidae, consisting mostly of large species living in the open ocean rather than on the sea bottom.

A European skate, Amblyraja radiata, with stellate bases on the dorsal spines.

A program or algorithm for ray tracing.

plural of ray tracer

(dated) One of the rays that emanate from the outer surface of a plate composed of any material permeable by cathode rays, such as aluminium, which forms a portion of a wall of a vacuum tube, or which is mounted within the tube and exposed to radiation from the cathode.

(physics, obsolete) infrared ray, heat ray