It seems that reflected is a word you've already ruled out—perhaps because you're passing light through another medium.
In which case, the light could be considered to be refracted or filtered.
All from Merriam-Webster.
1 a : to subject (something, such as a ray of light) to REFRACTON
1 : deflection from a straight path undergone by a light ray or energy wave in passing obliquely from one medium (such as air) into another (such as glass) in which its velocity is different
1 : to subject to the action of a filter
2 a : a device or material for suppressing or minimizing waves or oscillations of certain frequencies (as of electricity, light, or sound)
b : a transparent material (such as colored glass) that absorbs light of certain wavelengths or colors selectively and is used for modifying light that reaches a sensitized photographic material — called also color filter
Alternatively, if you're not talking about the technique but the end result that shows moving light patterns, then you are describing animated light:
1 a : endowed with life or the qualities of life : alive • animated creatures
b : full of movement and activity • an animated crowd
c : full of vigor and spirit : lively • an animated discussion
2 : having the appearance of something alive • an unusually animated piece of sculpture