the.com/rendering
The patient art of turning math into something your eyeballs will believe.
means The process of generating a final image, scene, or output from a model, code, or raw data.
from From Old French rendre, to give back, via Latin reddere; the computer gives back the picture you described in numbers.
Pixar patienceSingle frames can take days to render.
Two flavorsReal-time for games, offline for film.
Render farmsWarehouses of computers grinding out frames.
Lighting taxRealistic light bounces cost the most time.