Fill in the option defaults that live on the THREE side of the split:
terrain definitions (resolved THREE.Color instances) and the fallback color.
buildChunkGeometry applies this automatically; the worker client calls it
before serializing options for the worker.
Fill in the option defaults that live on the THREE side of the split: terrain definitions (resolved THREE.Color instances) and the fallback color.
buildChunkGeometryapplies this automatically; the worker client calls it before serializing options for the worker.