Merge pull request #29 from Unity-Technologies/LightEstimation

Added light estimation script and scene with UI to display values

Assets/Scenes/LightEstimation.unity.meta

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Assets/Scripts/LightEstimation.cs

+using UnityEngine;
+using UnityEngine.XR.ARFoundation;
+
+[RequireComponent(typeof(Light))]
+public class LightEstimation : MonoBehaviour
+{
+	Light m_Light;
+
+	public float? brightness { get; private set; }
+
+	public float? colorTemperature { get; private set; }
+
+	public Color? colorCorrection { get; private set; }
+
+	void Awake ()
+	{
+		m_Light = GetComponent<Light>();
+		ARSubsystemManager.cameraFrameReceived += FrameChanged;
+	}
+
+	void FrameChanged(ARCameraFrameEventArgs args)
+	{
+		if (args.lightEstimation.averageBrightness.HasValue)
+		{
+			brightness = args.lightEstimation.averageBrightness.Value;
+			m_Light.intensity = brightness.Value;
+		}
+
+		if (args.lightEstimation.averageColorTemperature.HasValue)
+		{
+			colorTemperature = args.lightEstimation.averageColorTemperature.Value;
+			m_Light.colorTemperature = colorTemperature.Value;
+		}
+		
+		if (args.lightEstimation.colorCorrection.HasValue)
+		{
+			colorCorrection = args.lightEstimation.colorCorrection.Value;
+			m_Light.color = colorCorrection.Value;
+		}
+	}
+}
+
+
+
+
+
+
+
+
+

Assets/Scripts/LightEstimation.cs.meta

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Assets/Scripts/LightEstimationUI.cs

+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.UI;
+
+[RequireComponent(typeof(LightEstimation))]
+public class LightEstimationUI : MonoBehaviour
+{
+	[SerializeField]
+	Text m_BrightnessVal;
+	
+	[SerializeField]
+	Text m_ColorTempVal;
+	
+	[SerializeField]
+	Text m_ColorCorrectVal;
+
+	LightEstimation m_LightEstimation;
+
+	const string k_UnavailableText = "Unavailable";
+
+	void Awake()
+	{
+		m_LightEstimation = GetComponent<LightEstimation>();
+	}
+
+	void Update()
+	{
+		SetUIValue(m_LightEstimation.brightness.HasValue, m_BrightnessVal, m_LightEstimation.brightness.Value.ToString());
+		SetUIValue(m_LightEstimation.colorTemperature.HasValue, m_ColorTempVal, m_LightEstimation.colorTemperature.Value.ToString());
+		SetUIValue(m_LightEstimation.colorCorrection.HasValue, m_ColorCorrectVal, m_LightEstimation.colorTemperature.Value.ToString());
+	}
+
+	void SetUIValue(bool ContainsValue, Text UIText, string DisplayValue)
+	{
+		if (UIText)
+		{
+			if (ContainsValue)
+			{
+				UIText.text = DisplayValue;
+			}
+			else
+			{
+				UIText.text = k_UnavailableText;
+			}
+		}
+	}
+	
+}

Assets/Scripts/LightEstimationUI.cs.meta

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