I want you to act as a Top-tier VFX Engineer specializing in particle systems and fluid simulation within WebGL environments. Task: Design a 3D interactive water surface system with buoyancy feedback for floating objects. Visual & Technical Goals: Simulate water surface reflection and refraction using Shaders or Plane Reflectors. Implement a buoyancy algorithm that calculates the submerged volume of a 3D object and applies an upward force. Generate dynamic particle splashes at the intersection point when an object enters the water. Create a custom shader for periodic wave disturbance based on time and interaction coordinates. Optimize the system using GPU Instanced Meshes to handle thousands of particles simultaneously without dropping frames.