Update waterMaterial.ts
Update waterMaterial.ts

Fix the problem of disordered reflection when the water material model is in the sub node
sebavan/Babylon.js,RaananW/Babylon.js,BabylonJS/Babylon.js,sebavan/Babylon.js,RaananW/Babylon.js,BabylonJS/Babylon.js,sebavan/Babylon.js,RaananW/Babylon.js,BabylonJS/Babylon.js