Diagonal Wipe — effect skill for transitions

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A wipe that enters from a corner on a diagonal. Variants: diagtl, diagtr, diagbl, diagbr.

What it does

Built on DirectionalWarp by pschroen (gl-transitions), MIT. The write-up and recipes below are varg's.

A slanted edge sweeps from one corner to the opposite one.

When: Sports, energetic promos, splitting attention between two subjects.

Watch out: Following a diagonal wipe with a horizontal one — pick one geometry per video.

Timing: 0.4–0.6 s.

Also called: Diagonal (CapCut), Slash wipe

In FFmpeg

Both inputs need the same size, frame rate, timebase, SAR and pixel format (settb=AVTB fixes the timebase error that fps alone leaves). offset is where the transition starts on the first clip's timeline (its length minus the overlap).

ffmpeg -i a.mp4 -i b.mp4 -filter_complex \
 "[0:v]fps=30,scale=1920:1080,setsar=1,settb=AVTB,format=yuv420p[a];[1:v]fps=30,scale=1920:1080,setsar=1,settb=AVTB,format=yuv420p[b];\
  [a][b]xfade=transition=diagtl:duration=0.5:offset=4.5[v];[0:a][1:a]acrossfade=d=0.5[a]" \
 -map "[v]" -map "[a]" out.mp4

In HyperFrames

Clip-path polygon tween from a corner, or glt.directional-warp for a smeared diagonal.

In Remotion

<TransitionSeries.Transition presentation={wipe({ direction: 'from-top-left' })} timing={linearTiming({ durationInFrames: 15 })} />

In CapCut

Transitions → Slide → Diagonal wipe.

Ready-made components

Where this comes from

Use when

Not for

Install

Example output

https://s3.varg.ai/how-to/previews/c942c135d952/take-xfade-diagonal-wipe.mp4 — diagtl between two shots, with the timeline strip of the edit. Footage: WING IT! (2023), Blender Studio | studio.blender.org, CC BY 4.0; Coffee Run (2020), Blender Studio | studio.blender.org, CC BY 4.0. (credit: Rendered by varg · WING IT! (2023) + Coffee Run (2020))

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