ray trace1
/ˈreɪ treɪs/noun
Optics and Computing. = ray tracing 3.
Origin
Late 19th century (in an earlier sense). From ray + trace, after ray tracing.
ray-trace2
/ˈreɪtreɪs/verb
1 [with object] Optics. To calculate the path taken by a ray of light in passing through (an optical system) or in forming (an image).
2 [with object] Computing. To use ray tracing to generate (an image) or an image of (an object).
Origin
1960s; earliest use found in Applied Optics. From ray + trace, after ray tracing.