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Command

transitions

transitions

Transition behavior is handled by command parameters and blend.

Current status

  • blur transition is currently buggy and may look inconsistent.

Commands that support transitions

  • scene ... fade <seconds>;
  • show ... fade <seconds>;
  • off ... fade <seconds>;
  • blend <style> <seconds>;

There is no standalone transition command.

scene, show, and off support the same style list as blend:

  • fade
  • wipe
  • slide
  • dissolve
  • zoom
  • blur
  • flash
  • shake
  • none

Blend styles

  • fade - black in/out blend.
  • wipe - left-to-right reveal.
  • slide - previous frame slides out while current slides in.
  • dissolve - tile-random reveal from previous to current frame.
  • zoom - previous frame zooms and fades over current frame.
  • blur - blurred transition (CPU by default, optional wgpu backend).
  • flash - fast white flash.
  • shake - screen shake burst.
  • none - disables blend effect.

Examples

scene image "bg/park.png" fade 0.6;
scene image "bg/night.png" wipe 0.7;
show alice happy right fade 0.3;
show alice happy right dissolve 0.4;
off alice slide 0.4;

blend fade 0.8;
blend wipe 0.7;
blend dissolve 0.8;
blend zoom 0.7;
blend blur 0.7;
blend flash 0.2;
blend shake 0.35;
blend none 0.1;