OptionalchildrenChild elements, typically geometries or other meshes.
OptionalgeometryTarget geometry. If omitted, uses children (e.g.,
OptionalpositionWorld position [x, y, z]. Default: [0, 0, 0].
OptionalrotationWorld rotation [x, y, z] in radians. Default: [0, 0, 0].
OptionalscaleWorld scale multiplier or vector. Default: 1.0.
Common props for shader-based mesh components.