Prism

Prism prints your picture across a row of slim triangular prisms, like a rotating trivision billboard. When the picture changes, each prism turns a third of a turn in a travelling wave to show the next picture on its next face.

How it works

Each prism has three faces: the current picture faces the viewer, the next picture sits on the following face, and the third face carries the slat colour. The turn passes every face through the scene's light, so a change reads as light running across the facets, and each prism overshoots slightly and settles. At rest a ripple of about a degree runs across, making the facets shimmer. It is lit by your scene, and object effects work on it.

Settings

• Count sets how many prisms there are; Vertical makes them stand upright or lie flat and turn top to bottom.
• Spread and Sweep angle set how many prisms turn at once and in which direction.
• Settle sets the overshoot at the end of each turn; Gap the space between prisms.
• Roughness sets the faces from glossy print to matte; Slat colour the third face.

Cursor

Tilt turns the prisms near the cursor a few degrees toward it, catching glints; Wave sends a ripple of turns out from it.

Use it for

• Retail signage and campaign heroes
• Product launches with several images
• Retro billboard and outdoor advertising looks