Playground

asset aspen_tree "Aspen" complexity=3
// a quaking aspen: a tall pale trunk with dark eye knots, a narrow oval crown of puffs high up,
// and round coin leaves on the crown that shimmer in the breeze; some seeds turn autumn gold
let H = 5.4..6.6
let TR = .17..0.2
let bark = cream:3|white:2|birch
let fol = leafLight:3|lime:2|leafA|marigold:.6|sunflower:.5
let knotC = walnut:2|iron
let CR = H*(.15..0.18)
 
// the trunk: a slim pale column with a gentle lean, the knots on its skin
lathe trunk rot=(-3..3, 0, -3..3) h=H*.66 r=TR prof=[0:1.25 .1:1 1:.62] flare=.2 color=bark segs=10 rings=8 joint
ball knot x5 on=trunk ring ring0=40 at=(TR*.86, H*(.08+.1*i), 0) r=(.03, .06, .045) color=knotC segs=6 rings=4
rod twig x3 on=trunk ring=25 ring0=70 at=(0, H*(.42+.07*i), 0) to=(.55, .55, 0) r=(.045, .03) sides=6 color=bark
 
// the crown: a tall oval with buds, then the coin leaves round it
puff crown on=trunk at=end+(0, H*.08, 0) r=(1, 1.45, 1)*CR color=fol segs=18 rings=14 noise=.05
puff bud x3 on=crown ring=20 ring0=30 at=(CR*.72, -CR*.55, 0) r=(.62, .7, .62)*CR color=fol*.97 segs=14 rings=10 noise=.06
puff topBud on=crown at=(CR*.12, CR*1.2, 0) r=(.55, .6, .55)*CR color=fol*1.03 segs=12 rings=9
ball coin x7 on=crown ring=18 at=(CR*1.0, CR*.62, 0) roll=-28 r=(.04, .13, .13) color=light(fol, .12) ink=none segs=8 rings=5 joint
ball coinMid x8 on=crown ring=18 ring0=24 at=(CR*1.06, CR*.05, 0) r=(.04, .14, .14) color=light(fol, .1) ink=none segs=8 rings=5 joint
ball coinLow x7 on=crown ring=18 ring0=50 at=(CR*1.04, -CR*.5, 0) roll=24 r=(.04, .13, .13) color=light(fol, .12) ink=none segs=8 rings=5 joint
 
anim trunk sway amp=1.6 hz=.3
anim coin rx sin amp=28 hz=2.6 stagger=.17
anim coinMid rx sin amp=30 hz=2.9 stagger=.13
anim coinLow rx sin amp=28 hz=2.3 stagger=.21