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using UnityEngine;
using UnityEngine.Rendering;
using UnityEngine.XR.ARFoundation;
namespace UnityEngine.XR.ARFoundation.Samples
{
/// <summary>
/// A component that can be used to access the most recently received basic light estimation information
/// for the physical environment as observed by an AR device.
/// </summary>
[RequireComponent(typeof(Light))]
public class BasicLightEstimation : MonoBehaviour
{
[SerializeField]
[Tooltip("The ARCameraManager which will produce frame events containing light estimation information.")]
ARCameraManager m_CameraManager;
/// <summary>
/// Get or set the <c>ARCameraManager</c>.
/// </summary>
public ARCameraManager cameraManager
{
get { return m_CameraManager; }
set
{
if (m_CameraManager == value)
return;
if (m_CameraManager != null)
m_CameraManager.frameReceived -= FrameChanged;
m_CameraManager = value;
if (m_CameraManager != null & enabled)
m_CameraManager.frameReceived += FrameChanged;
}
}
/// <summary>
/// The estimated brightness of the physical environment, if available.
/// </summary>
public float? brightness { get; private set; }
/// <summary>
/// The estimated color temperature of the physical environment, if available.
/// </summary>
public float? colorTemperature { get; private set; }
/// <summary>
/// The estimated color correction value of the physical environment, if available.
/// </summary>
public Color? colorCorrection { get; private set; }
void Awake ()
{
m_Light = GetComponent<Light>();
}
void OnEnable()
{
if (m_CameraManager != null)
m_CameraManager.frameReceived += FrameChanged;
}
void OnDisable()
{
if (m_CameraManager != null)
m_CameraManager.frameReceived -= FrameChanged;
}
void FrameChanged(ARCameraFrameEventArgs args)
{
if (args.lightEstimation.averageBrightness.HasValue)
{
brightness = args.lightEstimation.averageBrightness.Value;
m_Light.intensity = brightness.Value;
}
else
{
brightness = null;
}
if (args.lightEstimation.averageColorTemperature.HasValue)
{
colorTemperature = args.lightEstimation.averageColorTemperature.Value;
m_Light.colorTemperature = colorTemperature.Value;
}
else
{
colorTemperature = null;
}
if (args.lightEstimation.colorCorrection.HasValue)
{
colorCorrection = args.lightEstimation.colorCorrection.Value;
m_Light.color = colorCorrection.Value;
}
else
{
colorCorrection = null;
}
}
Light m_Light;
}
}