Smash cut
Also known as: hard cut, shock cut
An abrupt cut between two shots with nothing in common, used so the contrast itself does the work rather than any transition.
Updated
What it means
A smash cut is deliberately jarring. Quiet to loud, still to fast, wide to close, with no attempt to smooth the join. Nothing dissolves and nothing matches across it.
It works because the viewer is not prepared. The effect is the collision, which is why it only works occasionally and never twice in one sequence. Surprise does not survive being repeated.
It is the opposite approach to Cutting on action. One hides the join inside movement; a smash cut puts the join on display. Both are correct in their own context and wrong in the other.
How it works in practice
Audio carries most of it. A sudden drop to silence, an Impact hit or a placed Sound effect on the cut does more than the picture change alone, and the two together are the whole device.
It belongs at a structural boundary. The move into a Climax or out of an opening is where a collision reads as intentional rather than as a mistake somebody failed to fix.
Contrast has to be real. Two similar action shots cut hard read as a Jump cut; a landscape cut hard into a crash reads as a smash cut, because the two frames share nothing at all.
What to watch out for
Overuse removes the effect entirely. A sequence of hard cuts is just a fast edit, and nothing in it surprises anybody by the third one. The device spends itself quickly.
It can read as a technical fault. An abrupt change with no audio support looks like a missing Transition rather than a choice, and loud is the only version of it that reads as intentional.
Automatic assembly produces plain joins by design. A deliberate collision is placed afterwards, because a sequence built on Pacing smooths exactly what a smash cut needs left rough.
How RawClip handles it
Assembled sequences use plain cuts and transitions that hold up across any footage, with pacing following the music. A smash cut is a deliberate exception on one specific pair of shots, which is a change made on a timeline afterwards by somebody who wants it.