using processing to control interaction quality

SIZE:
strokeWeight
e.g. shape, line
shape width/height
e.g. rect, ellipse
shape end points
e.g. rect, triangle


POSITION:
shape start point/center
e.g. rect, ellipse
dot lines

MOVEMENT:
relationship between mouseX/Y

SPEED:
abs(mouseX-pmouseX)...

COLOR:
alpha,grey
background
fill
stroke