146 lines
5.2 KiB
C#
146 lines
5.2 KiB
C#
using UnityEngine;
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using System.Collections;
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namespace Thousandto.Cinematic
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{
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/// <summary>
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/// 相机运动模糊效果
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/// </summary>
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public class CinematicSportBlur : MonoBehaviour
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{
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//-------------------变量声明部分-------------------
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#region Variables
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public Shader CurShader;//着色器实例
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private Material CurMaterial;//当前的材质
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//shader需要的参数 [-0.5, 0.5]
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private float Intensity = 0;
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private float OffsetX = 0.5f;
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private float OffsetY = 0.5f;
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private Vector2 CenterV2;
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//外部控制变量
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private float _speed;
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private float _halfDuration;
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public float Duration = 2.0f;
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public float Strength = 0.5f;
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public bool Enable = false;
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#endregion
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//-------------------------材质的get&set----------------------------
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#region MaterialGetAndSet
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Material material
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{
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get
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{
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if (CurMaterial == null)
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{
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CurMaterial = new Material(CurShader);
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CurMaterial.hideFlags = HideFlags.HideAndDontSave;
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}
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return CurMaterial;
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}
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}
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#endregion
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//-----------------------------------------【Start()函数】---------------------------------------------
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// 说明：此函数仅在Update函数第一次被调用前被调用
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//--------------------------------------------------------------------------------------------------------
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void Start()
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{
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CenterV2 = new Vector2(OffsetX, OffsetY);
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//找到当前的Shader文件
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CurShader = Shader.Find("Funcell/Cinematic/CinematicSportBlur");
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//判断是否支持屏幕特效
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if (!SystemInfo.supportsImageEffects)
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{
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enabled = false;
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return;
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}
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}
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//-------------------------------------【OnRenderImage()函数】------------------------------------
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// 说明：此函数在当完成所有渲染图片后被调用，用来渲染图片后期效果
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//--------------------------------------------------------------------------------------------------------
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void OnRenderImage(RenderTexture sourceTexture, RenderTexture destTexture)
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{
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//着色器实例不为空，就进行参数设置
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if (CurShader != null)
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{
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//设置Shader中的外部变量
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material.SetFloat("_Value", Intensity);
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material.SetVector("_Center", CenterV2);
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//拷贝源纹理到目标渲染纹理，加上我们的材质效果
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Graphics.Blit(sourceTexture, destTexture, material);
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}
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//着色器实例为空，直接拷贝屏幕上的效果。此情况下是没有实现屏幕特效的
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else
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{
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//直接拷贝源纹理到目标渲染纹理
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Graphics.Blit(sourceTexture, destTexture);
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}
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}
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//-----------------------------------------【OnValidate()函数】--------------------------------------
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// 说明：此函数在编辑器中该脚本的某个值发生了改变后被调用
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//--------------------------------------------------------------------------------------------------------
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void OnValidate()
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{
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//将编辑器中的值赋值回来，确保在编辑器中值的改变立刻让结果生效
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CenterV2 = new Vector2(OffsetX, OffsetY);
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}
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//-----------------------------------------【Update()函数】------------------------------------------
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// 说明：此函数在每一帧中都会被调用
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//--------------------------------------------------------------------------------------------------------
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void Update()
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{
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if (!Enable) return;
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if(Duration > 0)
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{
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var timeDelta = Time.deltaTime;
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Duration -= timeDelta;
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if(Duration > _halfDuration)
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Intensity += timeDelta * _speed;
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else
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Intensity -= timeDelta * _speed;
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}
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else
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{
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Duration = 0;
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enabled = false;
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Enable = false;
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}
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}
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//-----------------------------------------【OnDisable()函数】---------------------------------------
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// 说明：当对象变为不可用或非激活状态时此函数便被调用
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//--------------------------------------------------------------------------------------------------------
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void OnDisable()
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{
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if (CurMaterial)
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{
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enabled = false;
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}
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}
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public void StartBlur(float duration, float strength = 0.5f)
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{
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Duration = duration;
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_halfDuration = duration / 2;
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_speed = strength / duration;
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Enable = true;
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enabled = true;
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}
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}
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} |