843 lines
24 KiB
C#
843 lines
24 KiB
C#
using System;
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using System.Collections.Generic;
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using UnityEngine;
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using FairyGUI.Utils;
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using Object = UnityEngine.Object;
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namespace FairyGUI
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{
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/// <summary>
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///
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/// </summary>
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public class NGraphics : IMeshFactory
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{
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/// <summary>
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///
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/// </summary>
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public GameObject gameObject { get; private set; }
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/// <summary>
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///
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/// </summary>
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public MeshFilter meshFilter { get; private set; }
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/// <summary>
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///
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/// </summary>
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public MeshRenderer meshRenderer { get; private set; }
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/// <summary>
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///
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/// </summary>
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public Mesh mesh { get; private set; }
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/// <summary>
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///
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/// </summary>
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public BlendMode blendMode;
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/// <summary>
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/// 不参与剪裁
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/// </summary>
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public bool dontClip;
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/// <summary>
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/// 当Mesh更新时触发
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/// </summary>
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public event Action meshModifier;
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NTexture _texture;
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string _shader;
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Material _material;
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int _customMatarial; //0-none, 1-common, 2-support internal mask, 128-owns material
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MaterialManager _manager;
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string[] _shaderKeywords;
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int _materialFlags;
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IMeshFactory _meshFactory;
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float _alpha;
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Color _color;
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bool _meshDirty;
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Rect _contentRect;
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FlipType _flip;
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public class VertexMatrix
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{
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public Vector3 cameraPos;
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public Matrix4x4 matrix;
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}
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VertexMatrix _vertexMatrix;
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bool hasAlphaBackup;
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List<byte> _alphaBackup; //透明度改变需要通过修改顶点颜色实现，但顶点颜色本身可能就带有透明度，所以这里要有一个备份
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internal int _maskFlag;
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StencilEraser _stencilEraser;
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#if !UNITY_5_6_OR_NEWER
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Color32[] _colors;
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#endif
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MaterialPropertyBlock _propertyBlock;
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bool _blockUpdated;
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/// <summary>
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///
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/// </summary>
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/// <param name="gameObject"></param>
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public NGraphics(GameObject gameObject)
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{
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this.gameObject = gameObject;
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_alpha = 1f;
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_shader = ShaderConfig.imageShader;
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_color = Color.white;
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_meshFactory = this;
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meshFilter = gameObject.AddComponent<MeshFilter>();
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meshRenderer = gameObject.AddComponent<MeshRenderer>();
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meshRenderer.shadowCastingMode = UnityEngine.Rendering.ShadowCastingMode.Off;
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meshRenderer.reflectionProbeUsage = UnityEngine.Rendering.ReflectionProbeUsage.Off;
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meshRenderer.receiveShadows = false;
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mesh = new Mesh();
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mesh.name = gameObject.name;
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mesh.MarkDynamic();
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meshFilter.mesh = mesh;
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meshFilter.hideFlags = DisplayObject.hideFlags;
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meshRenderer.hideFlags = DisplayObject.hideFlags;
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mesh.hideFlags = DisplayObject.hideFlags;
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Stats.LatestGraphicsCreation++;
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}
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/// <summary>
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///
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/// </summary>
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public IMeshFactory meshFactory
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{
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get { return _meshFactory; }
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set
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{
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if (_meshFactory != value)
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{
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_meshFactory = value;
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_meshDirty = true;
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}
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}
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}
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/// <summary>
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///
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <returns></returns>
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public T GetMeshFactory<T>() where T : IMeshFactory, new()
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{
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if (!(_meshFactory is T))
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{
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_meshFactory = new T();
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_meshDirty = true;
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}
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return (T)_meshFactory;
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}
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/// <summary>
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///
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/// </summary>
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public Rect contentRect
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{
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get { return _contentRect; }
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set
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{
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_contentRect = value;
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_meshDirty = true;
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}
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}
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/// <summary>
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///
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/// </summary>
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public FlipType flip
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{
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get { return _flip; }
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set
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{
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if (_flip != value)
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{
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_flip = value;
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_meshDirty = true;
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}
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}
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}
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/// <summary>
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///
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/// </summary>
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public NTexture texture
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{
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get { return _texture; }
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set
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{
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if (_texture != value)
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{
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if (value != null)
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value.AddRef();
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if (_texture != null)
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_texture.ReleaseRef();
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_texture = value;
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if (_customMatarial != 0 && _material != null)
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_material.mainTexture = _texture != null ? _texture.nativeTexture : null;
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_meshDirty = true;
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UpdateManager();
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}
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}
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}
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/// <summary>
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///
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/// </summary>
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public string shader
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{
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get { return _shader; }
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set
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{
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_shader = value;
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UpdateManager();
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}
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="shader"></param>
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/// <param name="texture"></param>
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public void SetShaderAndTexture(string shader, NTexture texture)
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{
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_shader = shader;
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if (_texture != texture)
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this.texture = texture;
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else
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UpdateManager();
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}
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/// <summary>
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///
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/// </summary>
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public Material material
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{
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get
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{
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if (_customMatarial == 0 && _material == null && _manager != null)
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_material = _manager.GetMaterial(_materialFlags, blendMode, 0);
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return _material;
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}
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set
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{
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if ((_customMatarial & 128) != 0 && _material != null)
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Object.DestroyImmediate(_material);
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_material = value;
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if (_material != null)
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{
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_customMatarial = 1;
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if (_material.HasProperty(ShaderConfig.ID_Stencil) || _material.HasProperty(ShaderConfig.ID_ClipBox))
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_customMatarial |= 2;
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meshRenderer.sharedMaterial = _material;
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if (_texture != null)
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_material.mainTexture = _texture.nativeTexture;
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}
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else
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{
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_customMatarial = 0;
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meshRenderer.sharedMaterial = null;
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}
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}
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}
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/// <summary>
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/// Same as material property except that ownership is transferred to this object.
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/// </summary>
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/// <param name="material"></param>
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public void SetMaterial(Material material)
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{
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this.material = material;
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_customMatarial |= 128;
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}
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/// <summary>
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///
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/// </summary>
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public string[] materialKeywords
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{
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get { return _shaderKeywords; }
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set
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{
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_shaderKeywords = value;
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UpdateMaterialFlags();
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}
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="keyword"></param>
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/// <param name="enabled"></param>
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public void ToggleKeyword(string keyword, bool enabled)
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{
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if (enabled)
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{
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if (_shaderKeywords == null)
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{
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_shaderKeywords = new string[] { keyword };
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UpdateMaterialFlags();
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}
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else if (Array.IndexOf(_shaderKeywords, keyword) == -1)
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{
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Array.Resize(ref _shaderKeywords, _shaderKeywords.Length + 1);
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_shaderKeywords[_shaderKeywords.Length - 1] = keyword;
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UpdateMaterialFlags();
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}
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}
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else
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{
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if (_shaderKeywords != null)
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{
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int i = Array.IndexOf(_shaderKeywords, keyword);
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if (i != -1)
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{
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_shaderKeywords[i] = null;
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UpdateMaterialFlags();
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}
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}
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}
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}
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void UpdateManager()
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{
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if (_texture != null)
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_manager = _texture.GetMaterialManager(_shader);
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else
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_manager = null;
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UpdateMaterialFlags();
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}
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void UpdateMaterialFlags()
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{
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if (_customMatarial != 0)
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{
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if (material != null)
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material.shaderKeywords = _shaderKeywords;
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}
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else if (_shaderKeywords != null && _manager != null)
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_materialFlags = _manager.GetFlagsByKeywords(_shaderKeywords);
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else
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_materialFlags = 0;
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}
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/// <summary>
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///
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/// </summary>
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public bool enabled
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{
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get { return meshRenderer.enabled; }
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set { meshRenderer.enabled = value; }
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}
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/// <summary>
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///
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/// </summary>
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public int sortingOrder
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{
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get { return meshRenderer.sortingOrder; }
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set { meshRenderer.sortingOrder = value; }
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="value"></param>
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internal void _SetStencilEraserOrder(int value)
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{
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_stencilEraser.meshRenderer.sortingOrder = value;
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="value"></param>
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public Color color
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{
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get { return _color; }
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set { _color = value; }
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}
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/// <summary>
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///
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/// </summary>
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public void Tint()
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{
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if (_meshDirty)
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return;
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int vertCount = mesh.vertexCount;
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if (vertCount == 0)
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return;
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#if !UNITY_5_6_OR_NEWER
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Color32[] colors = _colors;
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if (colors == null)
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colors = mesh.colors32;
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#else
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VertexBuffer vb = VertexBuffer.Begin();
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mesh.GetColors(vb.colors);
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List<Color32> colors = vb.colors;
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#endif
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for (int i = 0; i < vertCount; i++)
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{
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Color32 col = _color;
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col.a = (byte)(_alpha * (hasAlphaBackup ? _alphaBackup[i] : (byte)255));
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colors[i] = col;
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}
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#if !UNITY_5_6_OR_NEWER
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mesh.colors32 = colors;
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#else
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mesh.SetColors(vb.colors);
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vb.End();
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#endif
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}
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void ChangeAlpha(float value)
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{
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_alpha = value;
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int vertCount = mesh.vertexCount;
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if (vertCount == 0)
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return;
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#if !UNITY_5_6_OR_NEWER
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Color32[] colors = _colors;
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if (colors == null)
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colors = mesh.colors32;
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#else
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VertexBuffer vb = VertexBuffer.Begin();
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mesh.GetColors(vb.colors);
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List<Color32> colors = vb.colors;
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#endif
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for (int i = 0; i < vertCount; i++)
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{
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Color32 col = colors[i];
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col.a = (byte)(_alpha * (hasAlphaBackup ? _alphaBackup[i] : (byte)255));
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colors[i] = col;
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}
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#if !UNITY_5_6_OR_NEWER
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mesh.colors32 = colors;
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#else
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mesh.SetColors(vb.colors);
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vb.End();
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#endif
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}
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/// <summary>
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///
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/// </summary>
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public VertexMatrix vertexMatrix
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{
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get { return _vertexMatrix; }
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set
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{
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_vertexMatrix = value;
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_meshDirty = true;
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}
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}
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/// <summary>
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///
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/// </summary>
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/// <returns></returns>
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public MaterialPropertyBlock materialPropertyBlock
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{
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get
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{
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if (_propertyBlock == null)
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_propertyBlock = new MaterialPropertyBlock();
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_blockUpdated = true;
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return _propertyBlock;
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}
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}
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/// <summary>
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///
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/// </summary>
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public void SetMeshDirty()
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{
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_meshDirty = true;
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}
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/// <summary>
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///
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/// </summary>
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/// <returns></returns>
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public bool UpdateMesh()
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{
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if (_meshDirty)
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{
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UpdateMeshNow();
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return true;
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}
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else
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return false;
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}
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/// <summary>
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///
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/// </summary>
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public void Dispose()
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{
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if (mesh != null)
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{
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if (Application.isPlaying)
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Object.Destroy(mesh);
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else
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Object.DestroyImmediate(mesh);
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mesh = null;
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}
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if ((_customMatarial & 128) != 0 && _material != null)
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Object.DestroyImmediate(_material);
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if (_texture != null)
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{
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_texture.ReleaseRef();
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_texture = null;
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}
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_manager = null;
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_material = null;
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meshRenderer = null;
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meshFilter = null;
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_stencilEraser = null;
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meshModifier = null;
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="context"></param>
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/// <param name="alpha"></param>
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/// <param name="grayed"></param>
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public void Update(UpdateContext context, float alpha, bool grayed)
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{
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Stats.GraphicsCount++;
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if (_meshDirty)
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{
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_alpha = alpha;
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UpdateMeshNow();
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}
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else if (_alpha != alpha)
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ChangeAlpha(alpha);
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if (_propertyBlock != null && _blockUpdated)
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{
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meshRenderer.SetPropertyBlock(_propertyBlock);
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_blockUpdated = false;
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}
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if (_customMatarial != 0)
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{
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if ((_customMatarial & 2) != 0 && _material != null)
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context.ApplyClippingProperties(_material, false);
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}
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else
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{
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if (_manager != null)
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{
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if (_maskFlag == 1)
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{
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_material = _manager.GetMaterial((int)MaterialFlags.AlphaMask | _materialFlags, BlendMode.Normal, context.clipInfo.clipId);
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context.ApplyAlphaMaskProperties(_material, false);
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}
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else
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{
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int matFlags = _materialFlags;
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if (grayed)
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matFlags |= (int)MaterialFlags.Grayed;
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if (context.clipped)
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{
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if (context.stencilReferenceValue > 0)
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matFlags |= (int)MaterialFlags.StencilTest;
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if (context.rectMaskDepth > 0)
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{
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if (context.clipInfo.soft)
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matFlags |= (int)MaterialFlags.SoftClipped;
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else
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matFlags |= (int)MaterialFlags.Clipped;
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}
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_material = _manager.GetMaterial(matFlags, blendMode, context.clipInfo.clipId);
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if (_manager.firstMaterialInFrame)
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context.ApplyClippingProperties(_material, true);
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}
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else
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_material = _manager.GetMaterial(matFlags, blendMode, 0);
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}
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}
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else
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_material = null;
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if (!Material.ReferenceEquals(_material, meshRenderer.sharedMaterial))
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meshRenderer.sharedMaterial = _material;
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}
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if (_maskFlag != 0)
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{
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if (_maskFlag == 1)
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_maskFlag = 2;
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else
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{
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if (_stencilEraser != null)
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_stencilEraser.enabled = false;
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_maskFlag = 0;
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}
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}
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}
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internal void _PreUpdateMask(UpdateContext context, uint maskId)
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{
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//_maskFlag: 0-new mask, 1-active mask, 2-mask complete
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if (_maskFlag == 0)
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{
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if (_stencilEraser == null)
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{
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_stencilEraser = new StencilEraser(gameObject.transform);
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_stencilEraser.meshFilter.mesh = mesh;
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}
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else
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_stencilEraser.enabled = true;
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}
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_maskFlag = 1;
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if (_manager != null)
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{
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//这里使用maskId而不是clipInfo.clipId，是因为遮罩有两个用途，一个是写入遮罩，一个是擦除，两个不能用同一个材质
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Material mat = _manager.GetMaterial((int)MaterialFlags.AlphaMask | _materialFlags, BlendMode.Normal, maskId);
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if (!Material.ReferenceEquals(mat, _stencilEraser.meshRenderer.sharedMaterial))
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_stencilEraser.meshRenderer.sharedMaterial = mat;
|
||
|
||
context.ApplyAlphaMaskProperties(mat, true);
|
||
}
|
||
}
|
||
|
||
void UpdateMeshNow()
|
||
{
|
||
_meshDirty = false;
|
||
|
||
if (_texture == null || _meshFactory == null)
|
||
{
|
||
if (mesh.vertexCount > 0)
|
||
{
|
||
mesh.Clear();
|
||
|
||
if (meshModifier != null)
|
||
meshModifier();
|
||
}
|
||
return;
|
||
}
|
||
|
||
VertexBuffer vb = VertexBuffer.Begin();
|
||
vb.contentRect = _contentRect;
|
||
vb.uvRect = _texture.uvRect;
|
||
if (_texture != null)
|
||
vb.textureSize = new Vector2(_texture.width, _texture.height);
|
||
else
|
||
vb.textureSize = new Vector2(0, 0);
|
||
if (_flip != FlipType.None)
|
||
{
|
||
if (_flip == FlipType.Horizontal || _flip == FlipType.Both)
|
||
{
|
||
float tmp = vb.uvRect.xMin;
|
||
vb.uvRect.xMin = vb.uvRect.xMax;
|
||
vb.uvRect.xMax = tmp;
|
||
}
|
||
if (_flip == FlipType.Vertical || _flip == FlipType.Both)
|
||
{
|
||
float tmp = vb.uvRect.yMin;
|
||
vb.uvRect.yMin = vb.uvRect.yMax;
|
||
vb.uvRect.yMax = tmp;
|
||
}
|
||
}
|
||
vb.vertexColor = _color;
|
||
_meshFactory.OnPopulateMesh(vb);
|
||
|
||
int vertCount = vb.currentVertCount;
|
||
if (vertCount == 0)
|
||
{
|
||
if (mesh.vertexCount > 0)
|
||
{
|
||
mesh.Clear();
|
||
|
||
if (meshModifier != null)
|
||
meshModifier();
|
||
}
|
||
vb.End();
|
||
return;
|
||
}
|
||
|
||
if (_texture.rotated)
|
||
{
|
||
float xMin = _texture.uvRect.xMin;
|
||
float yMin = _texture.uvRect.yMin;
|
||
float yMax = _texture.uvRect.yMax;
|
||
float tmp;
|
||
for (int i = 0; i < vertCount; i++)
|
||
{
|
||
Vector2 vec = vb.uvs[i];
|
||
tmp = vec.y;
|
||
vec.y = yMin + vec.x - xMin;
|
||
vec.x = xMin + yMax - tmp;
|
||
vb.uvs[i] = vec;
|
||
}
|
||
}
|
||
|
||
hasAlphaBackup = vb._alphaInVertexColor;
|
||
if (hasAlphaBackup)
|
||
{
|
||
if (_alphaBackup == null)
|
||
_alphaBackup = new List<byte>();
|
||
else
|
||
_alphaBackup.Clear();
|
||
for (int i = 0; i < vertCount; i++)
|
||
{
|
||
Color32 col = vb.colors[i];
|
||
_alphaBackup.Add(col.a);
|
||
|
||
col.a = (byte)(col.a * _alpha);
|
||
vb.colors[i] = col;
|
||
}
|
||
}
|
||
else if (_alpha != 1)
|
||
{
|
||
for (int i = 0; i < vertCount; i++)
|
||
{
|
||
Color32 col = vb.colors[i];
|
||
col.a = (byte)(col.a * _alpha);
|
||
vb.colors[i] = col;
|
||
}
|
||
}
|
||
|
||
if (_vertexMatrix != null)
|
||
{
|
||
Vector3 camPos = _vertexMatrix.cameraPos;
|
||
Vector3 center = new Vector3(camPos.x, camPos.y, 0);
|
||
center -= _vertexMatrix.matrix.MultiplyPoint(center);
|
||
for (int i = 0; i < vertCount; i++)
|
||
{
|
||
Vector3 pt = vb.vertices[i];
|
||
pt = _vertexMatrix.matrix.MultiplyPoint(pt);
|
||
pt += center;
|
||
Vector3 vec = pt - camPos;
|
||
float lambda = -camPos.z / vec.z;
|
||
pt.x = camPos.x + lambda * vec.x;
|
||
pt.y = camPos.y + lambda * vec.y;
|
||
pt.z = 0;
|
||
|
||
vb.vertices[i] = pt;
|
||
}
|
||
}
|
||
|
||
mesh.Clear();
|
||
|
||
#if UNITY_5_2 || UNITY_5_3_OR_NEWER
|
||
mesh.SetVertices(vb.vertices);
|
||
if (vb._isArbitraryQuad)
|
||
mesh.SetUVs(0, vb.FixUVForArbitraryQuad());
|
||
else
|
||
mesh.SetUVs(0, vb.uvs);
|
||
mesh.SetColors(vb.colors);
|
||
mesh.SetTriangles(vb.triangles, 0);
|
||
if (vb.uvs2.Count == vb.uvs.Count)
|
||
mesh.SetUVs(1, vb.uvs2);
|
||
|
||
#if !UNITY_5_6_OR_NEWER
|
||
_colors = null;
|
||
#endif
|
||
#else
|
||
Vector3[] vertices = new Vector3[vertCount];
|
||
Vector2[] uv = new Vector2[vertCount];
|
||
_colors = new Color32[vertCount];
|
||
int[] triangles = new int[vb.triangles.Count];
|
||
|
||
vb.vertices.CopyTo(vertices);
|
||
vb.uvs.CopyTo(uv);
|
||
vb.colors.CopyTo(_colors);
|
||
vb.triangles.CopyTo(triangles);
|
||
|
||
mesh.vertices = vertices;
|
||
mesh.uv = uv;
|
||
mesh.triangles = triangles;
|
||
mesh.colors32 = _colors;
|
||
|
||
if(vb.uvs2.Count==uv.Length)
|
||
{
|
||
uv = new Vector2[vertCount];
|
||
vb.uvs2.CopyTo(uv);
|
||
mesh.uv2 = uv;
|
||
}
|
||
#endif
|
||
vb.End();
|
||
|
||
if (meshModifier != null)
|
||
meshModifier();
|
||
}
|
||
|
||
public void OnPopulateMesh(VertexBuffer vb)
|
||
{
|
||
Rect rect = texture.GetDrawRect(vb.contentRect);
|
||
|
||
vb.AddQuad(rect, vb.vertexColor, vb.uvRect);
|
||
vb.AddTriangles();
|
||
vb._isArbitraryQuad = _vertexMatrix != null;
|
||
}
|
||
|
||
class StencilEraser
|
||
{
|
||
public GameObject gameObject;
|
||
public MeshFilter meshFilter;
|
||
public MeshRenderer meshRenderer;
|
||
|
||
public StencilEraser(Transform parent)
|
||
{
|
||
gameObject = new GameObject("StencilEraser");
|
||
gameObject.transform.SetParent(parent, false);
|
||
|
||
meshFilter = gameObject.AddComponent<MeshFilter>();
|
||
meshRenderer = gameObject.AddComponent<MeshRenderer>();
|
||
meshRenderer.shadowCastingMode = UnityEngine.Rendering.ShadowCastingMode.Off;
|
||
meshRenderer.reflectionProbeUsage = UnityEngine.Rendering.ReflectionProbeUsage.Off;
|
||
meshRenderer.receiveShadows = false;
|
||
|
||
gameObject.layer = parent.gameObject.layer;
|
||
gameObject.hideFlags = parent.gameObject.hideFlags;
|
||
meshFilter.hideFlags = parent.gameObject.hideFlags;
|
||
meshRenderer.hideFlags = parent.gameObject.hideFlags;
|
||
}
|
||
|
||
public bool enabled
|
||
{
|
||
get { return meshRenderer.enabled; }
|
||
set { meshRenderer.enabled = value; }
|
||
}
|
||
}
|
||
}
|
||
}
|