Water4Simpleのインスタンスにくっつける。computeShader には https://gist.github.com/but80/8c5f9fc872d56a3a4673 を指定。FX4WaterSimple.shader を https://gist.github.com/but80/3038a735543087b5fe6a のように改造する。

OceanSurfaceRenderer.cs

using UnityEngine;
using System.Runtime.InteropServices;

struct OceanParticle {
	public Vector3 position;
	public float velocity;
	public float force;
	public OceanParticle(Vector3 position) {
		this.position = position;
		this.velocity = 0f;
		this.force = 0f;
	}
}

//[ExecuteInEditMode]
public class OceanSurfaceRenderer : MonoBehaviour {

	public ComputeShader computeShader;

	int cols = 150;
	int rows = 100;
	float sizeX = 30f;
	float sizeZ = 20f;

	float tension = 5f;
	float friction = .01f;
	float fadeRadius = 1e10f;//15f;
	float fadeCurve = 4f;
	float density = 1f;

	float initialWidth = 1f;
	float initialHeight = 5f;
	
	ComputeBuffer computeBuffer;
	int computeForceKID;

	void OnDisable() {
		computeBuffer.Release();
	}

	void Start() {
		InitializeComputeBuffer();
	}

	void Update() {
		computeShader.SetBuffer(0, "Particles", computeBuffer);
		computeShader.SetFloats("Tension", new float[2]{ tension, tension });
		computeShader.SetFloat("Friction", friction);
		computeShader.SetFloat("FadeRadius", fadeRadius);
		computeShader.SetFloat("FadeCurve", fadeCurve);
		computeShader.SetFloat("Mass", density * sizeX * sizeZ / ((cols+1) * (rows+1)));
		computeShader.SetInts("Division", new int[2]{ cols, rows });
		computeShader.SetInt("XCount", cols+1);
		computeShader.SetFloats("Pitch", new float[2]{ sizeX/cols, sizeZ/rows });
		computeShader.SetFloat("DeltaTime", Time.deltaTime);
		computeShader.Dispatch(computeForceKID, computeBuffer.count / 8 + 1, 1, 1);
	}

	void InitializeComputeBuffer() {
		computeBuffer = new ComputeBuffer((cols+1)*(rows+1), Marshal.SizeOf(typeof(OceanParticle)));
		OceanParticle[] bullets = new OceanParticle[computeBuffer.count];
		int k = 0;
		for (int i=0; i<=rows; i++) {
			float ip = (float)i/rows;
			float z = Mathf.Lerp(-sizeZ*.5f, sizeZ*.5f, ip);
			for (int j=0; j<=cols; j++) {
				float jp = (float)j/cols;
				float x = Mathf.Lerp(-sizeX*.5f, sizeX*.5f, jp);
				float h = initialHeight * Mathf.Exp(-(x*x+z*z) / (2f*initialWidth*initialWidth));
				bullets[k++] = new OceanParticle(new Vector3(x, h, z));
			}
		}
		computeBuffer.SetData(bullets);
		computeForceKID = computeShader.FindKernel("ComputeForce");
	}

	void OnRenderObject() {
		var renderers = GetComponentsInChildren<MeshRenderer> ();
		foreach (var renderer in renderers) {
			var material = renderer.materials[0];
			material.SetBuffer ("Particles", computeBuffer);
			material.SetInt ("XDivision", cols);
			material.SetInt ("ZDivision", rows);
			material.SetInt ("XCount", cols + 1);
			material.SetInt ("ZCount", rows + 1);
		}
	}

}