shapeU

🎨 3D 预览 — U 形建筑平面

@StartRule
Lot --> primitiveQuad(8, 6)
        shapeU(2, 2, 2)
        extrude(4)
        comp(f) { top: Roof | side: Wall }

Roof --> color(0.5, 0.3, 0.2)
Wall --> color(0.7, 0.7, 0.65)