(function (global, factory) {
  if (typeof define === "function" && define.amd) {
    define(["exports", "three", "./Pass.js", "../shaders/CopyShader.js"], factory);
  } else if (typeof exports !== "undefined") {
    factory(exports, require("three"), require("./Pass.js"), require("../shaders/CopyShader.js"));
  } else {
    var mod = {
      exports: {}
    };
    factory(mod.exports, global.three, global.Pass, global.CopyShader);
    global.OutlinePass = mod.exports;
  }
})(typeof globalThis !== "undefined" ? globalThis : typeof self !== "undefined" ? self : this, function (_exports, _three, _Pass2, _CopyShader) {
  "use strict";

  Object.defineProperty(_exports, "__esModule", {
    value: true
  });
  _exports.OutlinePass = void 0;

  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

  function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

  function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }

  function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } Object.defineProperty(subClass, "prototype", { value: Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }), writable: false }); if (superClass) _setPrototypeOf(subClass, superClass); }

  function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

  function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }

  function _possibleConstructorReturn(self, call) { if (call && (typeof call === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); }

  function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

  function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

  function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

  var OutlinePass = /*#__PURE__*/function (_Pass) {
    _inherits(OutlinePass, _Pass);

    var _super = _createSuper(OutlinePass);

    function OutlinePass(resolution, scene, camera, selectedObjects) {
      var _this;

      _classCallCheck(this, OutlinePass);

      _this = _super.call(this);
      _this.renderScene = scene;
      _this.renderCamera = camera;
      _this.selectedObjects = selectedObjects !== undefined ? selectedObjects : [];
      _this.visibleEdgeColor = new _three.Color(1, 1, 1);
      _this.hiddenEdgeColor = new _three.Color(0.1, 0.04, 0.02);
      _this.edgeGlow = 0.0;
      _this.usePatternTexture = false;
      _this.edgeThickness = 1.0;
      _this.edgeStrength = 3.0;
      _this.downSampleRatio = 2;
      _this.pulsePeriod = 0;
      _this._visibilityCache = new Map();
      _this.resolution = resolution !== undefined ? new _three.Vector2(resolution.x, resolution.y) : new _three.Vector2(256, 256);
      var pars = {
        minFilter: _three.LinearFilter,
        magFilter: _three.LinearFilter,
        format: _three.RGBAFormat
      };
      var resx = Math.round(_this.resolution.x / _this.downSampleRatio);
      var resy = Math.round(_this.resolution.y / _this.downSampleRatio);
      _this.maskBufferMaterial = new _three.MeshBasicMaterial({
        color: 0xffffff
      });
      _this.maskBufferMaterial.side = _three.DoubleSide;
      _this.renderTargetMaskBuffer = new _three.WebGLRenderTarget(_this.resolution.x, _this.resolution.y, pars);
      _this.renderTargetMaskBuffer.texture.name = 'OutlinePass.mask';
      _this.renderTargetMaskBuffer.texture.generateMipmaps = false;
      _this.depthMaterial = new _three.MeshDepthMaterial();
      _this.depthMaterial.side = _three.DoubleSide;
      _this.depthMaterial.depthPacking = _three.RGBADepthPacking;
      _this.depthMaterial.blending = _three.NoBlending;
      _this.prepareMaskMaterial = _this.getPrepareMaskMaterial();
      _this.prepareMaskMaterial.side = _three.DoubleSide;
      _this.prepareMaskMaterial.fragmentShader = replaceDepthToViewZ(_this.prepareMaskMaterial.fragmentShader, _this.renderCamera);
      _this.renderTargetDepthBuffer = new _three.WebGLRenderTarget(_this.resolution.x, _this.resolution.y, pars);
      _this.renderTargetDepthBuffer.texture.name = 'OutlinePass.depth';
      _this.renderTargetDepthBuffer.texture.generateMipmaps = false;
      _this.renderTargetMaskDownSampleBuffer = new _three.WebGLRenderTarget(resx, resy, pars);
      _this.renderTargetMaskDownSampleBuffer.texture.name = 'OutlinePass.depthDownSample';
      _this.renderTargetMaskDownSampleBuffer.texture.generateMipmaps = false;
      _this.renderTargetBlurBuffer1 = new _three.WebGLRenderTarget(resx, resy, pars);
      _this.renderTargetBlurBuffer1.texture.name = 'OutlinePass.blur1';
      _this.renderTargetBlurBuffer1.texture.generateMipmaps = false;
      _this.renderTargetBlurBuffer2 = new _three.WebGLRenderTarget(Math.round(resx / 2), Math.round(resy / 2), pars);
      _this.renderTargetBlurBuffer2.texture.name = 'OutlinePass.blur2';
      _this.renderTargetBlurBuffer2.texture.generateMipmaps = false;
      _this.edgeDetectionMaterial = _this.getEdgeDetectionMaterial();
      _this.renderTargetEdgeBuffer1 = new _three.WebGLRenderTarget(resx, resy, pars);
      _this.renderTargetEdgeBuffer1.texture.name = 'OutlinePass.edge1';
      _this.renderTargetEdgeBuffer1.texture.generateMipmaps = false;
      _this.renderTargetEdgeBuffer2 = new _three.WebGLRenderTarget(Math.round(resx / 2), Math.round(resy / 2), pars);
      _this.renderTargetEdgeBuffer2.texture.name = 'OutlinePass.edge2';
      _this.renderTargetEdgeBuffer2.texture.generateMipmaps = false;
      var MAX_EDGE_THICKNESS = 4;
      var MAX_EDGE_GLOW = 4;
      _this.separableBlurMaterial1 = _this.getSeperableBlurMaterial(MAX_EDGE_THICKNESS);

      _this.separableBlurMaterial1.uniforms['texSize'].value.set(resx, resy);

      _this.separableBlurMaterial1.uniforms['kernelRadius'].value = 1;
      _this.separableBlurMaterial2 = _this.getSeperableBlurMaterial(MAX_EDGE_GLOW);

      _this.separableBlurMaterial2.uniforms['texSize'].value.set(Math.round(resx / 2), Math.round(resy / 2));

      _this.separableBlurMaterial2.uniforms['kernelRadius'].value = MAX_EDGE_GLOW; // Overlay material

      _this.overlayMaterial = _this.getOverlayMaterial(); // copy material

      if (_CopyShader.CopyShader === undefined) console.error('THREE.OutlinePass relies on CopyShader');
      var copyShader = _CopyShader.CopyShader;
      _this.copyUniforms = _three.UniformsUtils.clone(copyShader.uniforms);
      _this.copyUniforms['opacity'].value = 1.0;
      _this.materialCopy = new _three.ShaderMaterial({
        uniforms: _this.copyUniforms,
        vertexShader: copyShader.vertexShader,
        fragmentShader: copyShader.fragmentShader,
        blending: _three.NoBlending,
        depthTest: false,
        depthWrite: false,
        transparent: true
      });
      _this.enabled = true;
      _this.needsSwap = false;
      _this._oldClearColor = new _three.Color();
      _this.oldClearAlpha = 1;
      _this.fsQuad = new _Pass2.FullScreenQuad(null);
      _this.tempPulseColor1 = new _three.Color();
      _this.tempPulseColor2 = new _three.Color();
      _this.textureMatrix = new _three.Matrix4();

      function replaceDepthToViewZ(string, camera) {
        var type = camera.isPerspectiveCamera ? 'perspective' : 'orthographic';
        return string.replace(/DEPTH_TO_VIEW_Z/g, type + 'DepthToViewZ');
      }

      return _this;
    }

    _createClass(OutlinePass, [{
      key: "dispose",
      value: function dispose() {
        this.renderTargetMaskBuffer.dispose();
        this.renderTargetDepthBuffer.dispose();
        this.renderTargetMaskDownSampleBuffer.dispose();
        this.renderTargetBlurBuffer1.dispose();
        this.renderTargetBlurBuffer2.dispose();
        this.renderTargetEdgeBuffer1.dispose();
        this.renderTargetEdgeBuffer2.dispose();
      }
    }, {
      key: "setSize",
      value: function setSize(width, height) {
        this.renderTargetMaskBuffer.setSize(width, height);
        this.renderTargetDepthBuffer.setSize(width, height);
        var resx = Math.round(width / this.downSampleRatio);
        var resy = Math.round(height / this.downSampleRatio);
        this.renderTargetMaskDownSampleBuffer.setSize(resx, resy);
        this.renderTargetBlurBuffer1.setSize(resx, resy);
        this.renderTargetEdgeBuffer1.setSize(resx, resy);
        this.separableBlurMaterial1.uniforms['texSize'].value.set(resx, resy);
        resx = Math.round(resx / 2);
        resy = Math.round(resy / 2);
        this.renderTargetBlurBuffer2.setSize(resx, resy);
        this.renderTargetEdgeBuffer2.setSize(resx, resy);
        this.separableBlurMaterial2.uniforms['texSize'].value.set(resx, resy);
      }
    }, {
      key: "changeVisibilityOfSelectedObjects",
      value: function changeVisibilityOfSelectedObjects(bVisible) {
        var cache = this._visibilityCache;

        function gatherSelectedMeshesCallBack(object) {
          if (object.isMesh) {
            if (bVisible === true) {
              object.visible = cache.get(object);
            } else {
              cache.set(object, object.visible);
              object.visible = bVisible;
            }
          }
        }

        for (var i = 0; i < this.selectedObjects.length; i++) {
          var selectedObject = this.selectedObjects[i];
          selectedObject.traverse(gatherSelectedMeshesCallBack);
        }
      }
    }, {
      key: "changeVisibilityOfNonSelectedObjects",
      value: function changeVisibilityOfNonSelectedObjects(bVisible) {
        var cache = this._visibilityCache;
        var selectedMeshes = [];

        function gatherSelectedMeshesCallBack(object) {
          if (object.isMesh) selectedMeshes.push(object);
        }

        for (var i = 0; i < this.selectedObjects.length; i++) {
          var selectedObject = this.selectedObjects[i];
          selectedObject.traverse(gatherSelectedMeshesCallBack);
        }

        function VisibilityChangeCallBack(object) {
          if (object.isMesh || object.isSprite) {
            // only meshes and sprites are supported by OutlinePass
            var bFound = false;

            for (var _i = 0; _i < selectedMeshes.length; _i++) {
              var selectedObjectId = selectedMeshes[_i].id;

              if (selectedObjectId === object.id) {
                bFound = true;
                break;
              }
            }

            if (bFound === false) {
              var visibility = object.visible;

              if (bVisible === false || cache.get(object) === true) {
                object.visible = bVisible;
              }

              cache.set(object, visibility);
            }
          } else if (object.isPoints || object.isLine) {
            // the visibilty of points and lines is always set to false in order to
            // not affect the outline computation
            if (bVisible === true) {
              object.visible = cache.get(object); // restore
            } else {
              cache.set(object, object.visible);
              object.visible = bVisible;
            }
          }
        }

        this.renderScene.traverse(VisibilityChangeCallBack);
      }
    }, {
      key: "updateTextureMatrix",
      value: function updateTextureMatrix() {
        this.textureMatrix.set(0.5, 0.0, 0.0, 0.5, 0.0, 0.5, 0.0, 0.5, 0.0, 0.0, 0.5, 0.5, 0.0, 0.0, 0.0, 1.0);
        this.textureMatrix.multiply(this.renderCamera.projectionMatrix);
        this.textureMatrix.multiply(this.renderCamera.matrixWorldInverse);
      }
    }, {
      key: "render",
      value: function render(renderer, writeBuffer, readBuffer, deltaTime, maskActive) {
        if (this.selectedObjects.length > 0) {
          renderer.getClearColor(this._oldClearColor);
          this.oldClearAlpha = renderer.getClearAlpha();
          var oldAutoClear = renderer.autoClear;
          renderer.autoClear = false;
          if (maskActive) renderer.state.buffers.stencil.setTest(false);
          renderer.setClearColor(0xffffff, 1); // Make selected objects invisible

          this.changeVisibilityOfSelectedObjects(false);
          var currentBackground = this.renderScene.background;
          this.renderScene.background = null; // 1. Draw Non Selected objects in the depth buffer

          this.renderScene.overrideMaterial = this.depthMaterial;
          renderer.setRenderTarget(this.renderTargetDepthBuffer);
          renderer.clear();
          renderer.render(this.renderScene, this.renderCamera); // Make selected objects visible

          this.changeVisibilityOfSelectedObjects(true);

          this._visibilityCache.clear(); // Update Texture Matrix for Depth compare


          this.updateTextureMatrix(); // Make non selected objects invisible, and draw only the selected objects, by comparing the depth buffer of non selected objects

          this.changeVisibilityOfNonSelectedObjects(false);
          this.renderScene.overrideMaterial = this.prepareMaskMaterial;
          this.prepareMaskMaterial.uniforms['cameraNearFar'].value.set(this.renderCamera.near, this.renderCamera.far);
          this.prepareMaskMaterial.uniforms['depthTexture'].value = this.renderTargetDepthBuffer.texture;
          this.prepareMaskMaterial.uniforms['textureMatrix'].value = this.textureMatrix;
          renderer.setRenderTarget(this.renderTargetMaskBuffer);
          renderer.clear();
          renderer.render(this.renderScene, this.renderCamera);
          this.renderScene.overrideMaterial = null;
          this.changeVisibilityOfNonSelectedObjects(true);

          this._visibilityCache.clear();

          this.renderScene.background = currentBackground; // 2. Downsample to Half resolution

          this.fsQuad.material = this.materialCopy;
          this.copyUniforms['tDiffuse'].value = this.renderTargetMaskBuffer.texture;
          renderer.setRenderTarget(this.renderTargetMaskDownSampleBuffer);
          renderer.clear();
          this.fsQuad.render(renderer);
          this.tempPulseColor1.copy(this.visibleEdgeColor);
          this.tempPulseColor2.copy(this.hiddenEdgeColor);

          if (this.pulsePeriod > 0) {
            var scalar = (1 + 0.25) / 2 + Math.cos(performance.now() * 0.01 / this.pulsePeriod) * (1.0 - 0.25) / 2;
            this.tempPulseColor1.multiplyScalar(scalar);
            this.tempPulseColor2.multiplyScalar(scalar);
          } // 3. Apply Edge Detection Pass


          this.fsQuad.material = this.edgeDetectionMaterial;
          this.edgeDetectionMaterial.uniforms['maskTexture'].value = this.renderTargetMaskDownSampleBuffer.texture;
          this.edgeDetectionMaterial.uniforms['texSize'].value.set(this.renderTargetMaskDownSampleBuffer.width, this.renderTargetMaskDownSampleBuffer.height);
          this.edgeDetectionMaterial.uniforms['visibleEdgeColor'].value = this.tempPulseColor1;
          this.edgeDetectionMaterial.uniforms['hiddenEdgeColor'].value = this.tempPulseColor2;
          renderer.setRenderTarget(this.renderTargetEdgeBuffer1);
          renderer.clear();
          this.fsQuad.render(renderer); // 4. Apply Blur on Half res

          this.fsQuad.material = this.separableBlurMaterial1;
          this.separableBlurMaterial1.uniforms['colorTexture'].value = this.renderTargetEdgeBuffer1.texture;
          this.separableBlurMaterial1.uniforms['direction'].value = OutlinePass.BlurDirectionX;
          this.separableBlurMaterial1.uniforms['kernelRadius'].value = this.edgeThickness;
          renderer.setRenderTarget(this.renderTargetBlurBuffer1);
          renderer.clear();
          this.fsQuad.render(renderer);
          this.separableBlurMaterial1.uniforms['colorTexture'].value = this.renderTargetBlurBuffer1.texture;
          this.separableBlurMaterial1.uniforms['direction'].value = OutlinePass.BlurDirectionY;
          renderer.setRenderTarget(this.renderTargetEdgeBuffer1);
          renderer.clear();
          this.fsQuad.render(renderer); // Apply Blur on quarter res

          this.fsQuad.material = this.separableBlurMaterial2;
          this.separableBlurMaterial2.uniforms['colorTexture'].value = this.renderTargetEdgeBuffer1.texture;
          this.separableBlurMaterial2.uniforms['direction'].value = OutlinePass.BlurDirectionX;
          renderer.setRenderTarget(this.renderTargetBlurBuffer2);
          renderer.clear();
          this.fsQuad.render(renderer);
          this.separableBlurMaterial2.uniforms['colorTexture'].value = this.renderTargetBlurBuffer2.texture;
          this.separableBlurMaterial2.uniforms['direction'].value = OutlinePass.BlurDirectionY;
          renderer.setRenderTarget(this.renderTargetEdgeBuffer2);
          renderer.clear();
          this.fsQuad.render(renderer); // Blend it additively over the input texture

          this.fsQuad.material = this.overlayMaterial;
          this.overlayMaterial.uniforms['maskTexture'].value = this.renderTargetMaskBuffer.texture;
          this.overlayMaterial.uniforms['edgeTexture1'].value = this.renderTargetEdgeBuffer1.texture;
          this.overlayMaterial.uniforms['edgeTexture2'].value = this.renderTargetEdgeBuffer2.texture;
          this.overlayMaterial.uniforms['patternTexture'].value = this.patternTexture;
          this.overlayMaterial.uniforms['edgeStrength'].value = this.edgeStrength;
          this.overlayMaterial.uniforms['edgeGlow'].value = this.edgeGlow;
          this.overlayMaterial.uniforms['usePatternTexture'].value = this.usePatternTexture;
          if (maskActive) renderer.state.buffers.stencil.setTest(true);
          renderer.setRenderTarget(readBuffer);
          this.fsQuad.render(renderer);
          renderer.setClearColor(this._oldClearColor, this.oldClearAlpha);
          renderer.autoClear = oldAutoClear;
        }

        if (this.renderToScreen) {
          this.fsQuad.material = this.materialCopy;
          this.copyUniforms['tDiffuse'].value = readBuffer.texture;
          renderer.setRenderTarget(null);
          this.fsQuad.render(renderer);
        }
      }
    }, {
      key: "getPrepareMaskMaterial",
      value: function getPrepareMaskMaterial() {
        return new _three.ShaderMaterial({
          uniforms: {
            'depthTexture': {
              value: null
            },
            'cameraNearFar': {
              value: new _three.Vector2(0.5, 0.5)
            },
            'textureMatrix': {
              value: null
            }
          },
          vertexShader: "#include <morphtarget_pars_vertex>\n\t\t\t\t#include <skinning_pars_vertex>\n\n\t\t\t\tvarying vec4 projTexCoord;\n\t\t\t\tvarying vec4 vPosition;\n\t\t\t\tuniform mat4 textureMatrix;\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\t#include <skinbase_vertex>\n\t\t\t\t\t#include <begin_vertex>\n\t\t\t\t\t#include <morphtarget_vertex>\n\t\t\t\t\t#include <skinning_vertex>\n\t\t\t\t\t#include <project_vertex>\n\n\t\t\t\t\tvPosition = mvPosition;\n\t\t\t\t\tvec4 worldPosition = modelMatrix * vec4( transformed, 1.0 );\n\t\t\t\t\tprojTexCoord = textureMatrix * worldPosition;\n\n\t\t\t\t}",
          fragmentShader: "#include <packing>\n\t\t\t\tvarying vec4 vPosition;\n\t\t\t\tvarying vec4 projTexCoord;\n\t\t\t\tuniform sampler2D depthTexture;\n\t\t\t\tuniform vec2 cameraNearFar;\n\n\t\t\t\tvoid main() {\n\n\t\t\t\t\tfloat depth = unpackRGBAToDepth(texture2DProj( depthTexture, projTexCoord ));\n\t\t\t\t\tfloat viewZ = - DEPTH_TO_VIEW_Z( depth, cameraNearFar.x, cameraNearFar.y );\n\t\t\t\t\tfloat depthTest = (-vPosition.z > viewZ) ? 1.0 : 0.0;\n\t\t\t\t\tgl_FragColor = vec4(0.0, depthTest, 1.0, 1.0);\n\n\t\t\t\t}"
        });
      }
    }, {
      key: "getEdgeDetectionMaterial",
      value: function getEdgeDetectionMaterial() {
        return new _three.ShaderMaterial({
          uniforms: {
            'maskTexture': {
              value: null
            },
            'texSize': {
              value: new _three.Vector2(0.5, 0.5)
            },
            'visibleEdgeColor': {
              value: new _three.Vector3(1.0, 1.0, 1.0)
            },
            'hiddenEdgeColor': {
              value: new _three.Vector3(1.0, 1.0, 1.0)
            }
          },
          vertexShader: "varying vec2 vUv;\n\n\t\t\t\tvoid main() {\n\t\t\t\t\tvUv = uv;\n\t\t\t\t\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n\t\t\t\t}",
          fragmentShader: "varying vec2 vUv;\n\n\t\t\t\tuniform sampler2D maskTexture;\n\t\t\t\tuniform vec2 texSize;\n\t\t\t\tuniform vec3 visibleEdgeColor;\n\t\t\t\tuniform vec3 hiddenEdgeColor;\n\n\t\t\t\tvoid main() {\n\t\t\t\t\tvec2 invSize = 1.0 / texSize;\n\t\t\t\t\tvec4 uvOffset = vec4(1.0, 0.0, 0.0, 1.0) * vec4(invSize, invSize);\n\t\t\t\t\tvec4 c1 = texture2D( maskTexture, vUv + uvOffset.xy);\n\t\t\t\t\tvec4 c2 = texture2D( maskTexture, vUv - uvOffset.xy);\n\t\t\t\t\tvec4 c3 = texture2D( maskTexture, vUv + uvOffset.yw);\n\t\t\t\t\tvec4 c4 = texture2D( maskTexture, vUv - uvOffset.yw);\n\t\t\t\t\tfloat diff1 = (c1.r - c2.r)*0.5;\n\t\t\t\t\tfloat diff2 = (c3.r - c4.r)*0.5;\n\t\t\t\t\tfloat d = length( vec2(diff1, diff2) );\n\t\t\t\t\tfloat a1 = min(c1.g, c2.g);\n\t\t\t\t\tfloat a2 = min(c3.g, c4.g);\n\t\t\t\t\tfloat visibilityFactor = min(a1, a2);\n\t\t\t\t\tvec3 edgeColor = 1.0 - visibilityFactor > 0.001 ? visibleEdgeColor : hiddenEdgeColor;\n\t\t\t\t\tgl_FragColor = vec4(edgeColor, 1.0) * vec4(d);\n\t\t\t\t}"
        });
      }
    }, {
      key: "getSeperableBlurMaterial",
      value: function getSeperableBlurMaterial(maxRadius) {
        return new _three.ShaderMaterial({
          defines: {
            'MAX_RADIUS': maxRadius
          },
          uniforms: {
            'colorTexture': {
              value: null
            },
            'texSize': {
              value: new _three.Vector2(0.5, 0.5)
            },
            'direction': {
              value: new _three.Vector2(0.5, 0.5)
            },
            'kernelRadius': {
              value: 1.0
            }
          },
          vertexShader: "varying vec2 vUv;\n\n\t\t\t\tvoid main() {\n\t\t\t\t\tvUv = uv;\n\t\t\t\t\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n\t\t\t\t}",
          fragmentShader: "#include <common>\n\t\t\t\tvarying vec2 vUv;\n\t\t\t\tuniform sampler2D colorTexture;\n\t\t\t\tuniform vec2 texSize;\n\t\t\t\tuniform vec2 direction;\n\t\t\t\tuniform float kernelRadius;\n\n\t\t\t\tfloat gaussianPdf(in float x, in float sigma) {\n\t\t\t\t\treturn 0.39894 * exp( -0.5 * x * x/( sigma * sigma))/sigma;\n\t\t\t\t}\n\n\t\t\t\tvoid main() {\n\t\t\t\t\tvec2 invSize = 1.0 / texSize;\n\t\t\t\t\tfloat weightSum = gaussianPdf(0.0, kernelRadius);\n\t\t\t\t\tvec4 diffuseSum = texture2D( colorTexture, vUv) * weightSum;\n\t\t\t\t\tvec2 delta = direction * invSize * kernelRadius/float(MAX_RADIUS);\n\t\t\t\t\tvec2 uvOffset = delta;\n\t\t\t\t\tfor( int i = 1; i <= MAX_RADIUS; i ++ ) {\n\t\t\t\t\t\tfloat w = gaussianPdf(uvOffset.x, kernelRadius);\n\t\t\t\t\t\tvec4 sample1 = texture2D( colorTexture, vUv + uvOffset);\n\t\t\t\t\t\tvec4 sample2 = texture2D( colorTexture, vUv - uvOffset);\n\t\t\t\t\t\tdiffuseSum += ((sample1 + sample2) * w);\n\t\t\t\t\t\tweightSum += (2.0 * w);\n\t\t\t\t\t\tuvOffset += delta;\n\t\t\t\t\t}\n\t\t\t\t\tgl_FragColor = diffuseSum/weightSum;\n\t\t\t\t}"
        });
      }
    }, {
      key: "getOverlayMaterial",
      value: function getOverlayMaterial() {
        return new _three.ShaderMaterial({
          uniforms: {
            'maskTexture': {
              value: null
            },
            'edgeTexture1': {
              value: null
            },
            'edgeTexture2': {
              value: null
            },
            'patternTexture': {
              value: null
            },
            'edgeStrength': {
              value: 1.0
            },
            'edgeGlow': {
              value: 1.0
            },
            'usePatternTexture': {
              value: 0.0
            }
          },
          vertexShader: "varying vec2 vUv;\n\n\t\t\t\tvoid main() {\n\t\t\t\t\tvUv = uv;\n\t\t\t\t\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n\t\t\t\t}",
          fragmentShader: "varying vec2 vUv;\n\n\t\t\t\tuniform sampler2D maskTexture;\n\t\t\t\tuniform sampler2D edgeTexture1;\n\t\t\t\tuniform sampler2D edgeTexture2;\n\t\t\t\tuniform sampler2D patternTexture;\n\t\t\t\tuniform float edgeStrength;\n\t\t\t\tuniform float edgeGlow;\n\t\t\t\tuniform bool usePatternTexture;\n\n\t\t\t\tvoid main() {\n\t\t\t\t\tvec4 edgeValue1 = texture2D(edgeTexture1, vUv);\n\t\t\t\t\tvec4 edgeValue2 = texture2D(edgeTexture2, vUv);\n\t\t\t\t\tvec4 maskColor = texture2D(maskTexture, vUv);\n\t\t\t\t\tvec4 patternColor = texture2D(patternTexture, 6.0 * vUv);\n\t\t\t\t\tfloat visibilityFactor = 1.0 - maskColor.g > 0.0 ? 1.0 : 0.5;\n\t\t\t\t\tvec4 edgeValue = edgeValue1 + edgeValue2 * edgeGlow;\n\t\t\t\t\tvec4 finalColor = edgeStrength * maskColor.r * edgeValue;\n\t\t\t\t\tif(usePatternTexture)\n\t\t\t\t\t\tfinalColor += + visibilityFactor * (1.0 - maskColor.r) * (1.0 - patternColor.r);\n\t\t\t\t\tgl_FragColor = finalColor;\n\t\t\t\t}",
          blending: _three.AdditiveBlending,
          depthTest: false,
          depthWrite: false,
          transparent: true
        });
      }
    }]);

    return OutlinePass;
  }(_Pass2.Pass);

  _exports.OutlinePass = OutlinePass;
  OutlinePass.BlurDirectionX = new _three.Vector2(1.0, 0.0);
  OutlinePass.BlurDirectionY = new _three.Vector2(0.0, 1.0);
});