pngs 180 120 hw4anim- 50

# informative only: I'll show the animation preview at this FPS
fps 8

# sets t to be in [0,1)
div t f l

# angle from 0 to 360, with cos and sin of it
mul angle t 360
cos x angle
sin y angle

# double oscillation speed by squaring
pow x2 x 2

# t2 = backwards t
mul tmp1 t -1
add t2 tmp1 1

# Set a 3-by-2 aspect ratio, 90° field-of-view in Y, near plane at 0.1, far plane at 10
loadp 0.6666666666666 0 0 0  0 1 0 0  0 0 -1.02020202020202 -0.20202020202020202  0 0 -1 0

object box world
quaternion 1 t t2 x2
position x y -5
xyz -2 -2 -2
xyz -2 -2  2
xyz -2  2 -2
xyz -2  2  2
xyz  2 -2 -2
xyz  2 -2  2
xyz  2  2 -2
xyz  2  2  2
color 0 0.5 0.5
trif 1 2 3
trif 2 3 4
color 1 0.5 0.5
trif 5 6 7
trif 6 7 8
color 0.5 0 0.5
trif 1 2 5
trif 2 5 6
color 0.5 1 0.5
trif 3 4 7
trif 4 7 8
color 0.5 0.5 0
trif 1 3 5
trif 3 5 7
color 0.5 0.5 1
trif 2 4 6
trif 4 6 8