controls
planform
roll - vertical (funnel)
roll - horizontal (tunnel/fan)
roll - oblique (spiral)
square lattice (chequer-board)
hexagonal (honeycomb)
rhombic
even square
even hexagon (0)
even hexagon (π)
even rhombic
even roll
odd roll (cobweb)
odd hexagon
triangular (pinwheels)
patchwork quilt
odd square
odd rhombic
wavenumber qc
14.0
spiral angle ψ
45°
rhombic η
60°
retinal scale
0.40
intensity
0.90
color
0.55
oscillation
0.80
blend
multiply (carrier modulation)
add (luminance overlay)
screen
replace (planform only)
contour width
0.18
start webcam
freeze
idle