abstract
angle
background
beam
contrast
converging
depth
dimensional
direction
distance
distortion
effect
epicenter
epicentre
fade
field
flare
geometric
geometry
gradient
gray
grey
horizon
interior
light
line
lineal
linear
merging
midpoint
monochrome
offset
parallel
pattern
perspective
plane
point
ray
space
spatial
straight
stripe
trip
twilight
vanishing
vertical
view
volumetric
zoom