實現物體自發光特效

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一、如何實現物體自發光特效

導入HightLightingSystem插件，將HightLightingEffect腳本掛到場景攝像機上上，將HightLightableObject腳本掛到需要發光的物體上，新建一個腳本，代碼引用發光特效。

二、使用步驟

1.HightLightingEffect

using UnityEngine;// Delegate for the highlighting event public delegate void HighlightingEventHandler(bool state, bool zWrite);[RequireComponent(typeof(Camera))] public class HighlightingEffect : MonoBehaviour {// Event used to notify highlightable objects to change their materials before rendering to the highlighting buffer beginspublic static event HighlightingEventHandler highlightingEvent;#region Inspector Fields// Stencil (highlighting) buffer depthpublic int stencilZBufferDepth = 0;// Stencil (highlighting) buffer size downsample factorpublic int _downsampleFactor = 4;// Blur iterationspublic int iterations = 2;// Blur minimal spreadpublic float blurMinSpread = 0.65f;// Blur spread per iterationpublic float blurSpread = 0.25f;// Blurring intensity for the blur materialpublic float _blurIntensity = 0.3f;// These properties available only in Editor - we don't need them in standalone build #if UNITY_EDITOR// Z-buffer writing state getter/setterpublic bool stencilZBufferEnabled{get{return (stencilZBufferDepth > 0);}set{if (stencilZBufferEnabled != value){stencilZBufferDepth = value ? 16 : 0;}}}// Downsampling factor getter/setterpublic int downsampleFactor{get{if (_downsampleFactor == 1){return 0;}if (_downsampleFactor == 2){return 1;}return 2;}set{if (value == 0){_downsampleFactor = 1;}if (value == 1){_downsampleFactor = 2;}if (value == 2){_downsampleFactor = 4;}}}// Blur alpha intensity getter/setterpublic float blurIntensity{get{return _blurIntensity;}set{if (_blurIntensity != value){_blurIntensity = value;if (Application.isPlaying){blurMaterial.SetFloat("_Intensity", _blurIntensity);}}}} #endif#endregion#region Private Fields// Highlighting camera layers culling maskprivate int layerMask = (1 << HighlightableObject.highlightingLayer);// This GameObject referenceprivate GameObject go = null;// Camera for rendering stencil buffer GameObjectprivate GameObject shaderCameraGO = null;// Camera for rendering stencil bufferprivate Camera shaderCamera = null;// RenderTexture with stencil bufferprivate RenderTexture stencilBuffer = null;// Camera referenceprivate Camera refCam = null;// Blur Shaderprivate static Shader _blurShader;private static Shader blurShader{get{if (_blurShader == null){_blurShader = Shader.Find("Hidden/Highlighted/Blur");}return _blurShader;}}// Compositing Shaderprivate static Shader _compShader;private static Shader compShader{get{if (_compShader == null){_compShader = Shader.Find("Hidden/Highlighted/Composite");}return _compShader;}}// Blur Materialprivate static Material _blurMaterial = null;private static Material blurMaterial{get{if (_blurMaterial == null){_blurMaterial = new Material(blurShader);_blurMaterial.hideFlags = HideFlags.HideAndDontSave;}return _blurMaterial;}}// Compositing Materialprivate static Material _compMaterial = null;private static Material compMaterial{get{if (_compMaterial == null){_compMaterial = new Material(compShader);_compMaterial.hideFlags = HideFlags.HideAndDontSave;}return _compMaterial;}}#endregionvoid Awake(){go = gameObject;refCam = GetComponent<Camera>();}void OnDisable(){if (shaderCameraGO != null){DestroyImmediate(shaderCameraGO);}if (_blurShader){_blurShader = null;}if (_compShader){_compShader = null;}if (_blurMaterial){DestroyImmediate(_blurMaterial);}if (_compMaterial){DestroyImmediate(_compMaterial);}if (stencilBuffer != null){RenderTexture.ReleaseTemporary(stencilBuffer);stencilBuffer = null;}}void Start(){// Disable if Image Effects is not supportedif (!SystemInfo.supportsImageEffects){Debug.LogWarning("HighlightingSystem : Image effects is not supported on this platform! Disabling.");this.enabled = false;return;}// Disable if Render Textures is not supportedif (!SystemInfo.supportsRenderTextures){Debug.LogWarning("HighlightingSystem : RenderTextures is not supported on this platform! Disabling.");this.enabled = false;return;}// Disable if required Render Texture Format is not supportedif (!SystemInfo.SupportsRenderTextureFormat(RenderTextureFormat.ARGB32)){Debug.LogWarning("HighlightingSystem : RenderTextureFormat.ARGB32 is not supported on this platform! Disabling.");this.enabled = false;return;}// Disable if HighlightingStencilOpaque shader is not supportedif (!Shader.Find("Hidden/Highlighted/StencilOpaque").isSupported){Debug.LogWarning("HighlightingSystem : HighlightingStencilOpaque shader is not supported on this platform! Disabling.");this.enabled = false;return;}// Disable if HighlightingStencilTransparent shader is not supportedif (!Shader.Find("Hidden/Highlighted/StencilTransparent").isSupported){Debug.LogWarning("HighlightingSystem : HighlightingStencilTransparent shader is not supported on this platform! Disabling.");this.enabled = false;return;}// Disable if HighlightingStencilOpaqueZ shader is not supportedif (!Shader.Find("Hidden/Highlighted/StencilOpaqueZ").isSupported){Debug.LogWarning("HighlightingSystem : HighlightingStencilOpaqueZ shader is not supported on this platform! Disabling.");this.enabled = false;return;}// Disable if HighlightingStencilTransparentZ shader is not supportedif (!Shader.Find("Hidden/Highlighted/StencilTransparentZ").isSupported){Debug.LogWarning("HighlightingSystem : HighlightingStencilTransparentZ shader is not supported on this platform! Disabling.");this.enabled = false;return;}// Disable if HighlightingBlur shader is not supportedif (!blurShader.isSupported){Debug.LogWarning("HighlightingSystem : HighlightingBlur shader is not supported on this platform! Disabling.");this.enabled = false;return;}// Disable if HighlightingComposite shader is not supportedif (!compShader.isSupported){Debug.LogWarning("HighlightingSystem : HighlightingComposite shader is not supported on this platform! Disabling.");this.enabled = false;return;}// Set the initial intensity in blur shaderblurMaterial.SetFloat("_Intensity", _blurIntensity);}// Performs one blur iterationpublic void FourTapCone(RenderTexture source, RenderTexture dest, int iteration){float off = blurMinSpread + iteration * blurSpread;blurMaterial.SetFloat("_OffsetScale", off);Graphics.Blit(source, dest, blurMaterial);}// Downsamples source textureprivate void DownSample4x(RenderTexture source, RenderTexture dest){float off = 1.0f;blurMaterial.SetFloat("_OffsetScale", off);Graphics.Blit(source, dest, blurMaterial);}// Render all highlighted objects to the stencil buffervoid OnPreRender(){ #if UNITY_4_0if (this.enabled == false || go.activeInHierarchy == false) #elseif (this.enabled == false || go.active == false) #endifreturn;if (stencilBuffer != null){RenderTexture.ReleaseTemporary(stencilBuffer);stencilBuffer = null;}// Turn on highlighted shadersif (highlightingEvent != null){highlightingEvent(true, (stencilZBufferDepth > 0));}// We don't need to render the scene if there's no HighlightableObjectselse{return;}stencilBuffer = RenderTexture.GetTemporary((int)GetComponent<Camera>().pixelWidth, (int)GetComponent<Camera>().pixelHeight, stencilZBufferDepth, RenderTextureFormat.ARGB32);if (!shaderCameraGO){shaderCameraGO = new GameObject("HighlightingCamera", typeof(Camera));shaderCameraGO.GetComponent<Camera>().enabled = false;shaderCameraGO.hideFlags = HideFlags.HideAndDontSave;}if (!shaderCamera){shaderCamera = shaderCameraGO.GetComponent<Camera>();}shaderCamera.CopyFrom(refCam);//shaderCamera.projectionMatrix = refCam.projectionMatrix; // Uncomment this line if you have problems using Highlighting System with custom projection matrix on your camerashaderCamera.cullingMask = layerMask;shaderCamera.rect = new Rect(0f, 0f, 1f, 1f);shaderCamera.renderingPath = RenderingPath.VertexLit;shaderCamera.allowHDR = false;shaderCamera.useOcclusionCulling = false;shaderCamera.backgroundColor = new Color(0f, 0f, 0f, 0f);shaderCamera.clearFlags = CameraClearFlags.SolidColor;shaderCamera.targetTexture = stencilBuffer;shaderCamera.Render();// Turn off highlighted shadersif (highlightingEvent != null){highlightingEvent(false, false);}}// Compose final frame with highlightingvoid OnRenderImage(RenderTexture source, RenderTexture destination){// If stencilBuffer is not created by some reasonif (stencilBuffer == null){// Simply transfer framebuffer to destinationGraphics.Blit(source, destination);return;}// Create two buffers for blurring the imageint width = source.width / _downsampleFactor;int height = source.height / _downsampleFactor;RenderTexture buffer = RenderTexture.GetTemporary(width, height, stencilZBufferDepth, RenderTextureFormat.ARGB32);RenderTexture buffer2 = RenderTexture.GetTemporary(width, height, stencilZBufferDepth, RenderTextureFormat.ARGB32);// Copy stencil buffer to the 4x4 smaller textureDownSample4x(stencilBuffer, buffer);// Blur the small texturebool oddEven = true;for (int i = 0; i < iterations; i++){if (oddEven){FourTapCone(buffer, buffer2, i);}else{FourTapCone(buffer2, buffer, i);}oddEven = !oddEven;}// ComposecompMaterial.SetTexture("_StencilTex", stencilBuffer);compMaterial.SetTexture("_BlurTex", oddEven ? buffer : buffer2);Graphics.Blit(source, destination, compMaterial);// CleanupRenderTexture.ReleaseTemporary(buffer);RenderTexture.ReleaseTemporary(buffer2);if (stencilBuffer != null){RenderTexture.ReleaseTemporary(stencilBuffer);stencilBuffer = null;}} }

2.HightLightableObject

代碼如下（示例）：

using UnityEngine; using System.Collections; using System.Collections.Generic;public class HighlightableObject : MonoBehaviour {#region Editable Fields// Builtin layer reserved for the highlightingpublic static int highlightingLayer = 7;// Constant highlighting turning on speedprivate static float constantOnSpeed = 4.5f;// Constant highlighting turning off speedprivate static float constantOffSpeed = 4f;// Default transparent cutoff value used for shaders without _Cutoff propertyprivate static float transparentCutoff = 0.5f;#endregion#region Private Fields// 2 * PI constant required for flashingprivate const float doublePI = 2f * Mathf.PI;// Cached materialsprivate List<HighlightingRendererCache> highlightableRenderers;// Cached layers of highlightable objectsprivate int[] layersCache;// Need to reinit materials flagprivate bool materialsIsDirty = true;// Current state of highlightingprivate bool currentState = false;// Current materials highlighting colorprivate Color currentColor;// Transition is active flagprivate bool transitionActive = false;// Current transition valueprivate float transitionValue = 0f;// Flashing frequencyprivate float flashingFreq = 2f;// One-frame highlighting flagprivate bool once = false;// One-frame highlighting colorprivate Color onceColor = Color.red;// Flashing state flagprivate bool flashing = false;// Flashing from colorprivate Color flashingColorMin = new Color(0.0f, 1.0f, 1.0f, 0.0f);// Flashing to colorprivate Color flashingColorMax = new Color(0.0f, 1.0f, 1.0f, 1.0f);// Constant highlighting state flagprivate bool constantly = false;// Constant highlighting colorprivate Color constantColor = Color.yellow;// Occluderprivate bool occluder = false;// Currently used shaders ZWriting stateprivate bool zWrite = false;// Occlusion color (DON'T TOUCH THIS!)private readonly Color occluderColor = new Color(0.0f, 0.0f, 0.0f, 0.005f);// private Material highlightingMaterial{get{return zWrite ? opaqueZMaterial : opaqueMaterial;}}// Common (for this component) replacement material for opaque geometry highlightingprivate Material _opaqueMaterial;private Material opaqueMaterial{get{if (_opaqueMaterial == null){_opaqueMaterial = new Material(opaqueShader);_opaqueMaterial.hideFlags = HideFlags.HideAndDontSave;}return _opaqueMaterial;}}// Common (for this component) replacement material for opaque geometry highlighting with Z-Buffer writing enabledprivate Material _opaqueZMaterial;private Material opaqueZMaterial{get{if (_opaqueZMaterial == null){_opaqueZMaterial = new Material(opaqueZShader);_opaqueZMaterial.hideFlags = HideFlags.HideAndDontSave;}return _opaqueZMaterial;}}// private static Shader _opaqueShader;private static Shader opaqueShader{get{if (_opaqueShader == null){_opaqueShader = Shader.Find("Hidden/Highlighted/StencilOpaque");}return _opaqueShader;}}// private static Shader _transparentShader;public static Shader transparentShader{get{if (_transparentShader == null){_transparentShader = Shader.Find("Hidden/Highlighted/StencilTransparent");}return _transparentShader;}}// private static Shader _opaqueZShader;private static Shader opaqueZShader{get{if (_opaqueZShader == null){_opaqueZShader = Shader.Find("Hidden/Highlighted/StencilOpaqueZ");}return _opaqueZShader;}}// private static Shader _transparentZShader;private static Shader transparentZShader{get{if (_transparentZShader == null){_transparentZShader = Shader.Find("Hidden/Highlighted/StencilTransparentZ");}return _transparentZShader;}}#endregion#region Common// Internal class for renderers cachingprivate class HighlightingRendererCache{public Renderer rendererCached;public GameObject goCached;private Material[] sourceMaterials;private Material[] replacementMaterials;private List<int> transparentMaterialIndexes;// Constructorpublic HighlightingRendererCache(Renderer rend, Material[] mats, Material sharedOpaqueMaterial, bool writeDepth){rendererCached = rend;goCached = rend.gameObject;sourceMaterials = mats;replacementMaterials = new Material[mats.Length];transparentMaterialIndexes = new List<int>();for (int i = 0; i < mats.Length; i++){Material sourceMat = mats[i];if (sourceMat == null){continue;}string tag = sourceMat.GetTag("RenderType", true);if (tag == "Transparent" || tag == "TransparentCutout"){Material replacementMat = new Material(writeDepth ? transparentZShader : transparentShader);if (sourceMat.HasProperty("_MainTex")){replacementMat.SetTexture("_MainTex", sourceMat.mainTexture);replacementMat.SetTextureOffset("_MainTex", sourceMat.mainTextureOffset);replacementMat.SetTextureScale("_MainTex", sourceMat.mainTextureScale);}replacementMat.SetFloat("_Cutoff", sourceMat.HasProperty("_Cutoff") ? sourceMat.GetFloat("_Cutoff") : transparentCutoff);replacementMaterials[i] = replacementMat;transparentMaterialIndexes.Add(i);}else{replacementMaterials[i] = sharedOpaqueMaterial;}}}// Based on given state variable, replaces materials of this cached renderer to the highlighted ones and backpublic void SetState(bool state){rendererCached.sharedMaterials = state ? replacementMaterials : sourceMaterials;}// Sets given color as the highlighting color on all transparent materials for this cached rendererpublic void SetColorForTransparent(Color clr){for (int i = 0; i < transparentMaterialIndexes.Count; i++){replacementMaterials[transparentMaterialIndexes[i]].SetColor("_Outline", clr);}}}// private void OnEnable(){StartCoroutine(EndOfFrame());// Subscribe to highlighting eventHighlightingEffect.highlightingEvent += UpdateEventHandler;}// private void OnDisable(){StopAllCoroutines();// Unsubscribe from highlighting eventHighlightingEffect.highlightingEvent -= UpdateEventHandler;// Clear cached renderersif (highlightableRenderers != null){highlightableRenderers.Clear();}// Reset highlighting parameters to default valueslayersCache = null;materialsIsDirty = true;currentState = false;currentColor = Color.clear;transitionActive = false;transitionValue = 0f;once = false;flashing = false;constantly = false;occluder = false;zWrite = false;/* // Reset custom parameters of the highlightingonceColor = Color.red;flashingColorMin = new Color(0f, 1f, 1f, 0f);flashingColorMax = new Color(0f, 1f, 1f, 1f);flashingFreq = 2f;constantColor = Color.yellow;*/if (_opaqueMaterial){DestroyImmediate(_opaqueMaterial);}if (_opaqueZMaterial){DestroyImmediate(_opaqueZMaterial);}}#endregion#region Public Methods/// <summary>/// Materials reinitialization. /// Call this method if your highlighted object changed his materials or child objects./// Can be called multiple times per update - renderers reinitialization will occur only once./// </summary>public void ReinitMaterials(){materialsIsDirty = true;}/// <summary>/// Immediately restore original materials. Obsolete. Use ReinitMaterials() instead./// </summary>public void RestoreMaterials(){Debug.LogWarning("HighlightingSystem : RestoreMaterials() is obsolete. Please use ReinitMaterials() instead.");ReinitMaterials();}/// <summary>/// Set color for one-frame highlighting mode./// </summary>/// <param name='color'>/// Highlighting color./// </param>public void OnParams(Color color){onceColor = color;}/// <summary>/// Turn on one-frame highlighting./// </summary>public void On(){// Highlight object only in this frameonce = true;}/// <summary>/// Turn on one-frame highlighting with given color./// Can be called multiple times per update, color only from the latest call will be used./// </summary>/// <param name='color'>/// Highlighting color./// </param>public void On(Color color){// Set new color for one-frame highlightingonceColor = color;On();}/// <summary>/// Set flashing parameters./// </summary>/// <param name='color1'>/// Starting color./// </param>/// <param name='color2'>/// Ending color./// </param>/// <param name='freq'>/// Flashing frequency./// </param>public void FlashingParams(Color color1, Color color2, float freq){flashingColorMin = color1;flashingColorMax = color2;flashingFreq = freq;}/// <summary>/// Turn on flashing./// </summary>public void FlashingOn(){flashing = true;}/// <summary>/// Turn on flashing from color1 to color2./// </summary>/// <param name='color1'>/// Starting color./// </param>/// <param name='color2'>/// Ending color./// </param>public void FlashingOn(Color color1, Color color2){flashingColorMin = color1;flashingColorMax = color2;FlashingOn();}/// <summary>/// Turn on flashing from color1 to color2 with given frequency./// </summary>/// <param name='color1'>/// Starting color./// </param>/// <param name='color2'>/// Ending color./// </param>/// <param name='freq'>/// Flashing frequency./// </param>public void FlashingOn(Color color1, Color color2, float freq){flashingFreq = freq;FlashingOn(color1, color2);}/// <summary>/// Turn on flashing with given frequency./// </summary>/// <param name='f'>/// Flashing frequency./// </param>public void FlashingOn(float freq){flashingFreq = freq;FlashingOn();}/// <summary>/// Turn off flashing./// </summary>public void FlashingOff(){flashing = false;}/// <summary>/// Switch flashing mode./// </summary>public void FlashingSwitch(){flashing = !flashing;}/// <summary>/// Set constant highlighting color./// </summary>/// <param name='color'>/// Constant highlighting color./// </param>public void ConstantParams(Color color){constantColor = color;}/// <summary>/// Fade in constant highlighting./// </summary>public void ConstantOn(){// Enable constant highlightingconstantly = true;// Start transitiontransitionActive = true;}/// <summary>/// Fade in constant highlighting with given color./// </summary>/// <param name='color'>/// Constant highlighting color./// </param>public void ConstantOn(Color color){// Set constant highlighting colorconstantColor = color;ConstantOn();}/// <summary>/// Fade out constant highlighting./// </summary>public void ConstantOff(){// Disable constant highlightingconstantly = false;// Start transitiontransitionActive = true;}/// <summary>/// Switch Constant Highlighting./// </summary>public void ConstantSwitch(){// Switch constant highlightingconstantly = !constantly;// Start transitiontransitionActive = true;}/// <summary>/// Turn on constant highlighting immediately (without fading in)./// </summary>public void ConstantOnImmediate(){constantly = true;// Set transition value to 1transitionValue = 1f;// Stop transitiontransitionActive = false;}/// <summary>/// Turn on constant highlighting with given color immediately (without fading in)./// </summary>/// <param name='color'>/// Constant highlighting color./// </param>public void ConstantOnImmediate(Color color){// Set constant highlighting colorconstantColor = color;ConstantOnImmediate();}/// <summary>/// Turn off constant highlighting immediately (without fading out)./// </summary>public void ConstantOffImmediate(){constantly = false;// Set transition value to 0transitionValue = 0f;// Stop transitiontransitionActive = false;}/// <summary>/// Switch constant highlighting immediately (without fading in/out)./// </summary>public void ConstantSwitchImmediate(){constantly = !constantly;// Set transition value to the final valuetransitionValue = constantly ? 1f : 0f;// Stop transitiontransitionActive = false;}/// <summary>/// Enable occluder mode/// </summary>public void OccluderOn(){occluder = true;}/// <summary>/// Disable occluder mode/// </summary>public void OccluderOff(){occluder = false;}/// <summary>/// Switch occluder mode/// </summary>public void OccluderSwitch(){occluder = !occluder;}/// <summary>/// Turn off all types of highlighting. /// </summary>public void Off(){// Turn off all types of highlightingonce = false;flashing = false;constantly = false;// Set transition value to 0transitionValue = 0f;// Stop transitiontransitionActive = false;}/// <summary>/// Destroy this HighlightableObject component./// </summary>public void Die(){Destroy(this);}#endregion#region Private Methods// Materials initialisationprivate void InitMaterials(bool writeDepth){currentState = false;zWrite = writeDepth;highlightableRenderers = new List<HighlightingRendererCache>();MeshRenderer[] mr = GetComponentsInChildren<MeshRenderer>();CacheRenderers(mr);SkinnedMeshRenderer[] smr = GetComponentsInChildren<SkinnedMeshRenderer>();CacheRenderers(smr);#if !UNITY_FLASH// ClothRenderer[] cr = GetComponentsInChildren<ClothRenderer>();// CacheRenderers(cr);#endifcurrentState = false;materialsIsDirty = false;currentColor = Color.clear;}// Cache given renderers propertiesprivate void CacheRenderers(Renderer[] renderers){for (int i = 0; i < renderers.Length; i++){Material[] materials = renderers[i].sharedMaterials;if (materials != null){highlightableRenderers.Add(new HighlightingRendererCache(renderers[i], materials, highlightingMaterial, zWrite));}}}// Update highlighting color to a given valueprivate void SetColor(Color c){if (currentColor == c){return;}if (zWrite){opaqueZMaterial.SetColor("_Outline", c);}else{opaqueMaterial.SetColor("_Outline", c);}for (int i = 0; i < highlightableRenderers.Count; i++){highlightableRenderers[i].SetColorForTransparent(c);}currentColor = c;}// Set new color if neededprivate void UpdateColors(){// Don't update colors if highlighting is disabledif (currentState == false){return;}if (occluder){SetColor(occluderColor);return;}if (once){SetColor(onceColor);return;}if (flashing){// Flashing frequency is not affected by Time.timeScaleColor c = Color.Lerp(flashingColorMin, flashingColorMax, 0.5f * Mathf.Sin(Time.realtimeSinceStartup * flashingFreq * doublePI) + 0.5f);SetColor(c);return;}if (transitionActive){Color c = new Color(constantColor.r, constantColor.g, constantColor.b, constantColor.a * transitionValue);SetColor(c);return;}else if (constantly){SetColor(constantColor);return;}}// Calculate new transition value if needed.private void PerformTransition(){if (transitionActive == false){return;}float targetValue = constantly ? 1f : 0f;// Is transition finished?if (transitionValue == targetValue){transitionActive = false;return;}if (Time.timeScale != 0f){// Calculating delta time untouched by Time.timeScalefloat unscaledDeltaTime = Time.deltaTime / Time.timeScale;// Calculating new transition valuetransitionValue += (constantly ? constantOnSpeed : -constantOffSpeed) * unscaledDeltaTime;transitionValue = Mathf.Clamp01(transitionValue);}else{return;}}// Highlighting event handler (main highlighting method)private void UpdateEventHandler(bool trigger, bool writeDepth){// Update and enable highlightingif (trigger){// ZWriting state changed?if (zWrite != writeDepth){materialsIsDirty = true;}// Initialize new materials if neededif (materialsIsDirty){InitMaterials(writeDepth);}currentState = (once || flashing || constantly || transitionActive || occluder);if (currentState){UpdateColors();PerformTransition();if (highlightableRenderers != null){layersCache = new int[highlightableRenderers.Count];for (int i = 0; i < highlightableRenderers.Count; i++){GameObject go = highlightableRenderers[i].goCached;// cache layerlayersCache[i] = go.layer;// temporary set layer to renderable by the highlighting effect camerago.layer = highlightingLayer;highlightableRenderers[i].SetState(true);}}}}// Disable highlightingelse{if (currentState && highlightableRenderers != null){for (int i = 0; i < highlightableRenderers.Count; i++){highlightableRenderers[i].goCached.layer = layersCache[i];highlightableRenderers[i].SetState(false);}}}}IEnumerator EndOfFrame(){while (enabled){yield return new WaitForEndOfFrame();// Reset one-frame highlighting state after each HighlightingEffect in the scene has finished renderingonce = false;}}#endregion }

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2.HightLightableObject

using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.UI;public class FoodPickUp_2 : MonoBehaviour {private HighlightableObject m_ho;//*外發光特效public AudioClip FoodGrab;//拾取音效public int FoodId;private GameObject player;public float time = 0.0f;public float timer;private bool isGrab = false;public UIBag Bag;//UI部分public Text text;private string[] objectName = new string[5] { "LuoTuoCi", "Grass", "GuanMu", "Tree", "handrail" };private string[] objectCollisionText = new string[5] { "這是針茅草,按E試試", "這是一棵草,按E試試", "這是地衣，按E試試", "這是胡楊林", "再往前走就要掉下去啦！！" };//標記在本輪中該對象是否為食物private int[] objectFoodFlag = { 0, 1, 2 };private bool isFood = false;private bool isEat = false;private bool flag = true;private int k = 0;void Update()//一定時間之后，文本消失{if (text.text == "吃掉啦~~"){time = time + Time.deltaTime;}if (time >= 2){text.text = "";}if (text.text == ""){time = 0f;}}void Awake()//*外發光{m_ho = GetComponent<HighlightableObject>();//初始化組件}void Start(){player = GameObject.FindGameObjectWithTag("Player");}private void OnTriggerStay(Collider other){if (other.gameObject == player){text.text = "";// print(this.gameObject.tag);objectCollision(this.tag);//碰撞事件//外發光 if (this.tag == "GuanMu"){m_ho.ConstantOn(Color.green);}if (this.tag == "LuoTuoCi"){m_ho.ConstantOn(Color.white);}if (this.tag == "Gress"){m_ho.ConstantOn(Color.white);}/*if (this.tag == "Tree"){m_ho.ConstantOn(Color.cyan);}if (this.tag == "smallStone"){m_ho.ConstantOn(Color.blue);}*///*if (Input.GetKeyDown(KeyCode.E) && isFood){Eat();}}}//物體碰撞事件private void objectCollision(string name){for (int i = 0; i < objectName.Length; i++){if (name == objectName[i]){k = i;break;}}text.text = objectCollisionText[k];for (int i = 0; i < objectFoodFlag.Length; i++){if (name == objectName[i]){isFood = true;break;}}}//*碰撞結束后字消失，外發光消失private void OnTriggerExit(Collider other){text.text = "";m_ho.ConstantOff();}public void Eat(){text.text = "吃掉啦~~";AudioSource.PlayClipAtPoint(FoodGrab, transform.position);if (!isEat)Bag.cellGenerate(k);isGrab = true;isFood = false;isEat = true;Destroy(this.gameObject);}private void textRemove(){text.text = " ";}}

引用代碼

代碼功能

private HighlightableObject m_ho;	定義外發光物體
m_ho = GetComponent();	Awake()中引用，初始化
m_ho.ConstantOn(Color.green);	開始發光
m_ho.ConstantOff();	發光消失

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