Function: buildLayeredMergedGeometry()

function buildLayeredMergedGeometry(
   tiles, 
   coreRadius, 
   solOuterRadius, 
   solHeightFn): LayeredMergedGeometry;

Builds the merged single-band hex-prism geometry for every tile.

Each tile contributes a sol prism between coreRadius and coreRadius + solHeight where solHeight is produced by solHeightFn and clamped into [0, shellThickness] (with shellThickness = solOuterRadius - coreRadius).

Parameters

Parameter	Type	Description
tiles	readonly Tile[]	All hexasphere tiles to include.
coreRadius	number	World-space radius of the inner core sphere.
solOuterRadius	number	World-space radius of the sol surface.
solHeightFn	SolHeightFn	Per-tile sol height resolver.

Returns

LayeredMergedGeometry