132 lines
4.4 KiB
C#
132 lines
4.4 KiB
C#
using System;
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using Thousandto.Launcher.ExternalLibs;
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using UnityEngine;
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namespace UnityStandardAssets.ImageEffects
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{
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[ExecuteInEditMode]
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[RequireComponent(typeof(Camera))]
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[AddComponentMenu("Image Effects/DistortEffect/DistortEffect(Optimized)")]
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public class DistortEffect : PostEffectsBase
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{
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[Range(0.0f, 1.0f)]
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public float DistortTimeFactor = 0.15f;
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//扭曲的强度
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[Range(0.0f, 0.2f)]
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public float DistortStrength = 0.01f;
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//噪声图
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public Texture NoiseTexture = null;
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//降采样系数
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public int downSample = 2;
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public LayerMask _Cameralayer = 1 << 28;
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private Camera mainCam = null;
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private Camera additionalCam = null;
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private RenderTexture renderTexture = null;
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private Material _Material = null;
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private Shader _Shader = null;
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//渲染Mask图所用的shader
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private Shader maskObjShader = null;
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public void OnRenderImage(RenderTexture source, RenderTexture destination)
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{
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//分辨率可以低一些
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if (renderTexture == null)
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renderTexture = RenderTexture.GetTemporary(source.width, source.height, 0);
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renderTexture.name = "RenderTexture59";
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renderTexture.antiAliasing = 1;
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if (_Material)
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{
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_Material.SetTexture("_NoiseTex", NoiseTexture);
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_Material.SetFloat("_DistortTimeFactor", DistortTimeFactor);
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_Material.SetFloat("_DistortStrength", DistortStrength);
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_Material.SetTexture("_MaskTex", renderTexture);
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Graphics.Blit(source, destination, _Material);
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}
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else
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{
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Graphics.Blit(source, destination);
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}
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}
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public override bool CheckResources()
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{
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CheckSupport(false);
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_Shader = ShaderFactory.Find("Ares/DistortEffect/DistortEffect");
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maskObjShader = ShaderFactory.Find("Ares/DistortEffect/DistortEffectMask");
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_Material = CheckShaderAndCreateMaterial(_Shader, _Material);
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if (!isSupported)
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ReportAutoDisable();
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return isSupported;
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}
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void Awake()
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{
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//创建一个和当前相机一致的相机
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InitAdditionalCam();
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}
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private void InitAdditionalCam()
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{
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mainCam = GetComponent<Camera>();
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if (mainCam == null)
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return;
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Transform addCamTransform = mainCam.transform.Find("additionalDistortCam");
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if (addCamTransform != null)
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DestroyImmediate(addCamTransform.gameObject);
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GameObject additionalCamObj = new GameObject("additionalDistortCam");
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additionalCam = additionalCamObj.AddComponent<Camera>();
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SetAdditionalCam();
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}
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private void SetAdditionalCam()
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{
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if (additionalCam)
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{
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additionalCam.transform.parent = mainCam.transform;
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additionalCam.transform.localPosition = Vector3.zero;
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additionalCam.transform.localRotation = Quaternion.identity;
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additionalCam.transform.localScale = Vector3.one;
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additionalCam.farClipPlane = mainCam.farClipPlane;
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additionalCam.nearClipPlane = mainCam.nearClipPlane;
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additionalCam.fieldOfView = mainCam.fieldOfView;
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additionalCam.backgroundColor = Color.clear;
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additionalCam.clearFlags = CameraClearFlags.Color;
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additionalCam.cullingMask = _Cameralayer;
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additionalCam.depth = -999;
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}
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}
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void OnEnable()
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{
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SetAdditionalCam();
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additionalCam.enabled = true;
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}
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void OnDisable()
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{
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additionalCam.enabled = false;
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}
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void OnDestroy()
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{
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if (renderTexture)
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{
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RenderTexture.ReleaseTemporary(renderTexture);
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}
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DestroyImmediate(additionalCam.gameObject);
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}
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//在真正渲染前的回调，此处渲染Mask遮罩图
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void OnPreRender()
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{
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//maskObjShader进行渲染
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if (additionalCam.enabled)
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{
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additionalCam.targetTexture = renderTexture;
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additionalCam.RenderWithShader(maskObjShader, "");
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}
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}
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}
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}
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