Function clipMeshesToHalfSpace

clipMeshesToHalfSpace(
    meshes: readonly MeshData[],
    normal: Vec3,
    offset: number,
): HalfSpaceClipBatchResult
Clip every mesh, dropping the ones that vanish and pooling the rim.
Parameters
- meshes: readonly MeshData[]
- normal: Vec3
- offset: number
Returns HalfSpaceClipBatchResult