pngs 120 120 hw4piecewise- 48
fps 24
div t f 40

mul x1 t 4
add x x1 -2

pow tsq t 2
mul y1a tsq 16
add y1 y1a -2

mul lin t -24
add lin2 lin 10
add y2 y1a lin2
piecewise y y1 20 y2 40 2

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

object thing world
position x y -3
xyz -1 -1 0
xyz -1  1 0
xyz  1 -1 0
xyz  1  1 0
color 0 0.5 0
trif 1 2 3
trif 2 3 4