[snatchpiesinger]

> Aliasing in sound is usually painfully untolerable. It does not seem to be like that in graphics.

It's tolerable in graphics in many cases, but becomes painfully obvious when the spatial frequency of some model approaches the pixel grid's frequency, and you get very distracting Moiré patterns.

edit:

But I guess in 3D rendering you deal with this differently, probably. You probably don't want to spend resources on painting model details that are half a pixel in size, so they get entirely culled, instead of causing any Moiré problems.