var BABYLON,__extends=this&&this.__extends||(function(){var n=function(e,t){return(n=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i])})(e,t)};return function(e,t){function i(){this.constructor=e}n(e,t),e.prototype=null===t?Object.create(t):(i.prototype=t.prototype,new i)}})(),__decorate=this&&this.__decorate||function(e,t,i,n){var r,o=arguments.length,a=o<3?t:null===n?n=Object.getOwnPropertyDescriptor(t,i):n;if("object"==typeof Reflect&&"function"==typeof Reflect.decorate)a=Reflect.decorate(e,t,i,n);else for(var s=e.length-1;0<=s;s--)(r=e[s])&&(a=(o<3?r(a):3<o?r(t,i,a):r(t,i))||a);return 3<o&&a&&Object.defineProperty(t,i,a),a};!(function(s){var f=(function(t){function e(){var e=t.call(this)||this;return e.OPACITY=!1,e.TRANSPARENT=!1,e.FOG=!1,e.PREMULTIPLYALPHA=!1,e.UV1=!1,e.UV2=!1,e.rebuild(),e}return __extends(e,t),e})(s.MaterialDefines),e=(function(n){function r(e,t){var i=n.call(this,e,t)||this;return i.mainColor=s.Color3.Black(),i.lineColor=s.Color3.Teal(),i.gridRatio=1,i.gridOffset=s.Vector3.Zero(),i.majorUnitFrequency=10,i.minorUnitVisibility=.33,i.opacity=1,i.preMultiplyAlpha=!1,i._gridControl=new s.Vector4(i.gridRatio,i.majorUnitFrequency,i.minorUnitVisibility,i.opacity),i}return __extends(r,n),r.prototype.needAlphaBlending=function(){return this.opacity<1||this._opacityTexture&&this._opacityTexture.isReady()},r.prototype.needAlphaBlendingForMesh=function(e){return this.needAlphaBlending()},r.prototype.isReadyForSubMesh=function(e,t,i){if(this.isFrozen&&this._wasPreviouslyReady&&t.effect)return!0;t._materialDefines||(t._materialDefines=new f);var n=t._materialDefines,r=this.getScene();if(!this.checkReadyOnEveryCall&&t.effect&&this._renderId===r.getRenderId())return!0;if(n.TRANSPARENT!==this.opacity<1&&(n.TRANSPARENT=!n.TRANSPARENT,n.markAsUnprocessed()),n.PREMULTIPLYALPHA!=this.preMultiplyAlpha&&(n.PREMULTIPLYALPHA=!n.PREMULTIPLYALPHA,n.markAsUnprocessed()),n._areTexturesDirty&&(n._needUVs=!1,r.texturesEnabled&&this._opacityTexture&&s.StandardMaterial.OpacityTextureEnabled)){if(!this._opacityTexture.isReady())return!1;n._needUVs=!0,n.OPACITY=!0}if(s.MaterialHelper.PrepareDefinesForMisc(e,r,!1,!1,this.fogEnabled,!1,n),n.isDirty){n.markAsProcessed(),r.resetCachedMaterial(),s.MaterialHelper.PrepareDefinesForAttributes(e,n,!1,!1);var o=[s.VertexBuffer.PositionKind,s.VertexBuffer.NormalKind];n.UV1&&o.push(s.VertexBuffer.UVKind),n.UV2&&o.push(s.VertexBuffer.UV2Kind);var a=n.toString();t.setEffect(r.getEngine().createEffect("grid",o,["projection","worldView","mainColor","lineColor","gridControl","gridOffset","vFogInfos","vFogColor","world","view","opacityMatrix","vOpacityInfos"],["opacitySampler"],a,void 0,this.onCompiled,this.onError),n)}return!(!t.effect||!t.effect.isReady())&&(this._renderId=r.getRenderId(),this._wasPreviouslyReady=!0)},r.prototype.bindForSubMesh=function(e,t,i){var n=this.getScene();if(i._materialDefines){var r=i.effect;r&&(this._activeEffect=r,this.bindOnlyWorldMatrix(e),this._activeEffect.setMatrix("worldView",e.multiply(n.getViewMatrix())),this._activeEffect.setMatrix("view",n.getViewMatrix()),this._activeEffect.setMatrix("projection",n.getProjectionMatrix()),this._mustRebind(n,r)&&(this._activeEffect.setColor3("mainColor",this.mainColor),this._activeEffect.setColor3("lineColor",this.lineColor),this._activeEffect.setVector3("gridOffset",this.gridOffset),this._gridControl.x=this.gridRatio,this._gridControl.y=Math.round(this.majorUnitFrequency),this._gridControl.z=this.minorUnitVisibility,this._gridControl.w=this.opacity,this._activeEffect.setVector4("gridControl",this._gridControl),this._opacityTexture&&s.StandardMaterial.OpacityTextureEnabled&&(this._activeEffect.setTexture("opacitySampler",this._opacityTexture),this._activeEffect.setFloat2("vOpacityInfos",this._opacityTexture.coordinatesIndex,this._opacityTexture.level),this._activeEffect.setMatrix("opacityMatrix",this._opacityTexture.getTextureMatrix()))),s.MaterialHelper.BindFogParameters(n,t,this._activeEffect),this._afterBind(t,this._activeEffect))}},r.prototype.dispose=function(e){n.prototype.dispose.call(this,e)},r.prototype.clone=function(e){var t=this;return s.SerializationHelper.Clone((function(){return new r(e,t.getScene())}),this)},r.prototype.serialize=function(){var e=s.SerializationHelper.Serialize(this);return e.customType="BABYLON.GridMaterial",e},r.prototype.getClassName=function(){return"GridMaterial"},r.Parse=function(e,t,i){return s.SerializationHelper.Parse((function(){return new r(e.name,t)}),e,t,i)},__decorate([s.serializeAsColor3()],r.prototype,"mainColor",void 0),__decorate([s.serializeAsColor3()],r.prototype,"lineColor",void 0),__decorate([s.serialize()],r.prototype,"gridRatio",void 0),__decorate([s.serializeAsColor3()],r.prototype,"gridOffset",void 0),__decorate([s.serialize()],r.prototype,"majorUnitFrequency",void 0),__decorate([s.serialize()],r.prototype,"minorUnitVisibility",void 0),__decorate([s.serialize()],r.prototype,"opacity",void 0),__decorate([s.serialize()],r.prototype,"preMultiplyAlpha",void 0),__decorate([s.serializeAsTexture("opacityTexture")],r.prototype,"_opacityTexture",void 0),__decorate([s.expandToProperty("_markAllSubMeshesAsTexturesDirty")],r.prototype,"opacityTexture",void 0),r})(s.PushMaterial);s.GridMaterial=e})(BABYLON||(BABYLON={})),BABYLON.Effect.ShadersStore.gridVertexShader="precision highp float;\n\nattribute vec3 position;\nattribute vec3 normal;\n#ifdef UV1\nattribute vec2 uv;\n#endif\n#ifdef UV2\nattribute vec2 uv2;\n#endif\n\nuniform mat4 projection;\nuniform mat4 world;\nuniform mat4 view;\nuniform mat4 worldView;\n\nvarying vec3 vPosition;\nvarying vec3 vNormal;\n#include<fogVertexDeclaration>\n#ifdef OPACITY\nvarying vec2 vOpacityUV;\nuniform mat4 opacityMatrix;\nuniform vec2 vOpacityInfos;\n#endif\nvoid main(void) {\n#ifdef FOG\nvec4 worldPos=world*vec4(position,1.0);\n#endif\n#include<fogVertex>\nvec4 cameraSpacePosition=worldView*vec4(position,1.0);\ngl_Position=projection*cameraSpacePosition;\n#ifdef OPACITY\n#ifndef UV1\nvec2 uv=vec2(0.,0.);\n#endif\n#ifndef UV2\nvec2 uv2=vec2(0.,0.);\n#endif\nif (vOpacityInfos.x == 0.)\n{\nvOpacityUV=vec2(opacityMatrix*vec4(uv,1.0,0.0));\n}\nelse\n{\nvOpacityUV=vec2(opacityMatrix*vec4(uv2,1.0,0.0));\n}\n#endif \nvPosition=position;\nvNormal=normal;\n}",BABYLON.Effect.ShadersStore.gridPixelShader="#extension GL_OES_standard_derivatives : enable\n#define SQRT2 1.41421356\n#define PI 3.14159\nprecision highp float;\nuniform vec3 mainColor;\nuniform vec3 lineColor;\nuniform vec4 gridControl;\nuniform vec3 gridOffset;\n\nvarying vec3 vPosition;\nvarying vec3 vNormal;\n#include<fogFragmentDeclaration>\n\n#ifdef OPACITY\nvarying vec2 vOpacityUV;\nuniform sampler2D opacitySampler;\nuniform vec2 vOpacityInfos;\n#endif\nfloat getVisibility(float position) {\n\nfloat majorGridFrequency=gridControl.y;\nif (floor(position+0.5) == floor(position/majorGridFrequency+0.5)*majorGridFrequency)\n{\nreturn 1.0;\n} \nreturn gridControl.z;\n}\nfloat getAnisotropicAttenuation(float differentialLength) {\nconst float maxNumberOfLines=10.0;\nreturn clamp(1.0/(differentialLength+1.0)-1.0/maxNumberOfLines,0.0,1.0);\n}\nfloat isPointOnLine(float position,float differentialLength) {\nfloat fractionPartOfPosition=position-floor(position+0.5); \nfractionPartOfPosition/=differentialLength; \nfractionPartOfPosition=clamp(fractionPartOfPosition,-1.,1.);\nfloat result=0.5+0.5*cos(fractionPartOfPosition*PI); \nreturn result; \n}\nfloat contributionOnAxis(float position) {\nfloat differentialLength=length(vec2(dFdx(position),dFdy(position)));\ndifferentialLength*=SQRT2; \n\nfloat result=isPointOnLine(position,differentialLength);\n\nfloat visibility=getVisibility(position);\nresult*=visibility;\n\nfloat anisotropicAttenuation=getAnisotropicAttenuation(differentialLength);\nresult*=anisotropicAttenuation;\nreturn result;\n}\nfloat normalImpactOnAxis(float x) {\nfloat normalImpact=clamp(1.0-3.0*abs(x*x*x),0.0,1.0);\nreturn normalImpact;\n}\nvoid main(void) {\n\nfloat gridRatio=gridControl.x;\nvec3 gridPos=(vPosition+gridOffset.xyz)/gridRatio;\n\nfloat x=contributionOnAxis(gridPos.x);\nfloat y=contributionOnAxis(gridPos.y);\nfloat z=contributionOnAxis(gridPos.z);\n\nvec3 normal=normalize(vNormal);\nx*=normalImpactOnAxis(normal.x);\ny*=normalImpactOnAxis(normal.y);\nz*=normalImpactOnAxis(normal.z);\n\nfloat grid=clamp(x+y+z,0.,1.);\n\nvec3 color=mix(mainColor,lineColor,grid);\n#ifdef FOG\n#include<fogFragment>\n#endif\nfloat opacity=1.0;\n#ifdef TRANSPARENT\nopacity=clamp(grid,0.08,gridControl.w*grid);\n#endif \n#ifdef OPACITY\nopacity*=texture2D(opacitySampler,vOpacityUV).a;\n#endif \n\ngl_FragColor=vec4(color.rgb,opacity);\n#ifdef TRANSPARENT\n#ifdef PREMULTIPLYALPHA\ngl_FragColor.rgb*=opacity;\n#endif\n#else \n#endif\n}";