The forest's trees lit two ways, side by side. Now (left): each leaf card lit by its own facing, half bent toward straight up, as in the Terrain Lab today. Shaped (right): each card lit as part of the lump of foliage it belongs to, so every branch gets a bright top and a dark underside, darker deeper inside, the thin outer edge lighter. No extra triangles or pictures: it is worked out once when the tree loads, and the far-off versions are baked from it.