mandelbulb master double

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class MandelbulbMain : MonoBehaviour
{
	public float power;
	public int iterations;
	public float spread;
	public float scale;
	public ComputeShader mandelbulbShader;
	public Light mainLight;

	RenderTexture renderTexture;

	ComputeBuffer powerBuf;
	ComputeBuffer scaleBuf;
	ComputeBuffer spreadBuf;

	void Start()
	{
		renderTexture = new RenderTexture(Screen.width, Screen.height, 24);
		renderTexture.enableRandomWrite = true;
		renderTexture.Create();
		mandelbulbShader.SetTexture(0, "Result", renderTexture);
		mandelbulbShader.SetFloat("maxDst", 300);
		mandelbulbShader.SetFloat("minStepSize", 0.01f);

		powerBuf = CreateDoubleBuffer(1, power);
		scaleBuf = CreateDoubleBuffer(1, scale);
		spreadBuf = CreateDoubleBuffer(1, spread);
		mandelbulbShader.SetBuffer(0, "power", powerBuf);
		mandelbulbShader.SetBuffer(0, "spread", spreadBuf);
		mandelbulbShader.SetBuffer(0, "scale", scaleBuf);
	}

	void OnRenderImage(RenderTexture src, RenderTexture dest)
	{
		Vector3 lightDir = -mainLight.transform.forward;
		mandelbulbShader.SetTexture(0, "Source", src);
		mandelbulbShader.SetFloat("power", power);
		mandelbulbShader.SetFloat("spread", spread);
		mandelbulbShader.SetFloat("scale", scale);
		mandelbulbShader.SetInt("maxIterations", iterations);
		mandelbulbShader.SetFloats("lightDir", new float[] { lightDir.x, lightDir.y, lightDir.z });
		mandelbulbShader.SetMatrix("_CameraToWorld", Camera.main.cameraToWorldMatrix);
		mandelbulbShader.SetMatrix("_CameraInverseProjection", Camera.main.projectionMatrix.inverse);
		mandelbulbShader.Dispatch(0, renderTexture.width / 8, renderTexture.height / 8, 1);

		Graphics.Blit(renderTexture, dest);
	}

	void OnDestroy()
	{
		powerBuf.Dispose();
		scaleBuf.Dispose();
		spreadBuf
	}

	ComputeBuffer CreateDoubleBuffer(int strideMult, double data)
	{
		var buf = new ComputeBuffer(1, sizeof(double) * strideMult);
		buf.SetData(new double[] { data });
		return buf;

	}
}