tb slitScan 1.0
Implementation of the classic slit-scan effect.
A single line of the input image shows through a slit, and a feedback effect causes pixels to stream out of the centre-line towards the edge of the screen, giving the effect of movement over an infinite plain.
Much-used in the 'Stargate' sequence in the film 2001.
Angle of effect
Vertical or Horizontal variations
Adjust position of effect centre-line
Level of feedback. Lower levels cause effect to fade out as it moves further from centre-line
Flips effect up/down left/right around centre-line
Creates freeze-frame of input.
Rate of travel of effect.
'Scans' image up/down left/right behind slit.