color

🎨 3D 预览 — 彩色立方体

@StartRule
Lot --> primitiveCube(4, 4, 4)
        comp(f) { top: Red | side: Rainbow }

Red --> color(1, 0, 0)

Rainbow -->
  split(x) { ~1 : Band }*

Band -->
  color(rand(1), rand(1), rand(1))