76 lines
2.6 KiB
C#
76 lines
2.6 KiB
C#
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using Games.Events;
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using Games.Scene;
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using UnityEngine;
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/// <summary>
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/// 设置当前场景方向光到全局参数上
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/// </summary>
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// 注：因为美术效果很多时候阴影方向和镜面反射所需光线方向冲突，因此修改组件为可自由旋转
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// 注：现在这个工具也用于处理平行光动态阴影开关
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public class DirectionalLightSetter : MonoBehaviour
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{
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private const string _dirPropertyName = "_DirectionalLight";
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// 镜面反射单独使用一个方向
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private const string _specularPropertyName = "_SpecularLight";
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private const string _colorPropertyName = "_DirectionalLightColor";
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private const string _attenPropertyName = "_DirectionalLightAtten";
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// 欧拉角度表示的镜面反射方向
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public Quaternion specularRotation = Quaternion.identity;
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private Light _lightComponent;
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private void Start()
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{
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_lightComponent = GetComponent<Light>();
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PlayerPreferenceData.SystemQualityDymShadow.onSettingUpdate += OnDynamicShadowToggle;
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OnDynamicShadowToggle(PlayerPreferenceData.SystemQualityDymShadow);
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EventDispatcher.Instance.Add(Games.Events.EventId.PostMainCameraMove, OnCameraMove);
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SetLight();
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}
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private void OnDestroy()
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{
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if (!GameManager.applicationQuit)
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{
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PlayerPreferenceData.SystemQualityDymShadow.onSettingUpdate -= OnDynamicShadowToggle;
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EventDispatcher.Instance.Remove(Games.Events.EventId.PostMainCameraMove, OnCameraMove);
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}
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}
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private void OnDynamicShadowToggle(bool isOn)
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{
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_lightComponent.enabled = isOn;
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}
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public void SetLight(Light light)
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{
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Shader.SetGlobalVector(_dirPropertyName, transform.rotation * Vector3.back);
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Shader.SetGlobalColor(_colorPropertyName, light.color);
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Shader.SetGlobalFloat(_attenPropertyName, light.intensity);
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Shader.SetGlobalVector(_specularPropertyName, specularRotation * Vector3.back);
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}
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public void SetLight()
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{
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SetLight(_lightComponent);
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}
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private float? _baseYaw;
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private float _lastYaw;
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private void OnCameraMove(object args)
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{
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if (_baseYaw == null)
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{
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_lastYaw = SceneLogic.CameraController.Yaw;
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_baseYaw = _lastYaw;
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}
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else if (_lastYaw != SceneLogic.CameraController.Yaw)
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{
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var yaw = SceneLogic.CameraController.Yaw;
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var deltaYaw = yaw - _baseYaw.Value;
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_lastYaw = yaw;
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var rotation = Quaternion.Euler(0f, deltaYaw, 0f) * specularRotation;
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Shader.SetGlobalVector(_specularPropertyName, rotation * Vector3.back);
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}
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}
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}
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