【Unity3D自学记录】Unity5之实时GI环境光


快速实时GI环境光
  快速实时GI环境光可以用天空盒直接驱动环境光输入。这在环境光每帧都会发生变化的情况下非常不理想。所以替代方法是,由当前时间来控制环境光,并转换为关照渐变和环境光强度用于驱动实时GI系统。这些都可以在光照面板中设置:

 
  更新环境光代码如下:
using System;
 
using UnityEngine;
 
using System.Collections;
 
using System.Collections.Generic;
 
[ExecuteInEditMode]
 
public class EnvironmentUpdater : MonoBehaviour {
 
public Gradient groundGradient, equatorGradient, skyGradient;
 
private TimeOfDayManager m_TimeOfDayManager;
 
void OnEnable () {
 
m_TimeOfDayManager = FindObjectOfType ();
 
}
 
void Update () {
 
float currentTime = m_TimeOfDayManager.time;
 
RenderSettings.ambientGroundColor = groundGradient.Evaluate(currentTime);
 
RenderSettings.ambientEquatorColor = equatorGradient.Evaluate(currentTime);
 
RenderSettings.ambientSkyColor = skyGradient.Evaluate(currentTime);
 
}
 
}



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