Decode light probe coefficients

LightprobeDecode.cs

using UnityEngine;
using System.Collections;

public class LightprobDecode : MonoBehaviour {

	public Renderer ReferenceRenderer;
	
	public Transform DirLightTransform;

	void Awake () {
		const float kInv2SqrtPI = 0.28209479177F;
		const float kNormalization = 2.95679308573F;
		const float kSqrt3Div2SqrtPI = 0.4886025119F;
		
		float[] coefficients = new float[27];
		LightmapSettings.lightProbes.GetInterpolatedLightProbe(ReferenceRenderer.transform.position, ReferenceRenderer, coefficients);
		
		float rScale = coefficients[0] / kInv2SqrtPI;
		float gScale = coefficients[1] / kInv2SqrtPI;
		float bScale = coefficients[2] / kInv2SqrtPI;
		
		float rColor = rScale / (kNormalization * 2.0f);
		float gColor = gScale / (kNormalization * 2.0f);
		float bColor = bScale / (kNormalization * 2.0f);
		
		float rDirY = 0;
		if (rScale > 0) rDirY = -coefficients[3] / (kSqrt3Div2SqrtPI * rScale);
		
		float gDirY = 0;
		if (gScale > 0) gDirY = -coefficients[4] / (kSqrt3Div2SqrtPI * gScale);
		
		float bDirY = 0;
		if (bScale > 0) bDirY = -coefficients[5] / (kSqrt3Div2SqrtPI * bScale);
		
		float rDirZ = 0;
		if (rScale > 0) rDirZ = coefficients[6] / (kSqrt3Div2SqrtPI * rScale);
		
		float gDirZ = 0;
		if (gScale > 0) gDirZ = coefficients[7] / (kSqrt3Div2SqrtPI * gScale);
		
		float bDirZ = 0;
		if (bScale > 0) bDirZ = coefficients[8] / (kSqrt3Div2SqrtPI * bScale);
		
		float rDirX = 0;
		if (rScale > 0) rDirX = -coefficients[9] / (kSqrt3Div2SqrtPI * rScale);
		
		float gDirX = 0;
		if (gScale > 0) gDirX = -coefficients[10] / (kSqrt3Div2SqrtPI * gScale);
		
		float bDirX = 0;
		if (bScale > 0) bDirX = -coefficients[11] / (kSqrt3Div2SqrtPI * bScale);
		
		var rDir = new Vector3(rDirX, rDirY, rDirZ);
		var gDir = new Vector3(gDirX, gDirY, gDirZ);
		var bDir = new Vector3(bDirX, bDirY, bDirZ);
		
		Debug.Log (-DirLightTransform.forward);
		
		var colorTimesIntensity = new Color(rColor, gColor, bColor);
		Debug.Log(colorTimesIntensity);
		
		Debug.Log (rDir);
		Debug.Log (gDir);
		Debug.Log (bDir);
	}
}