/*@license
 AsyGL: Render Bezier patches and triangles via subdivision with WebGL.
  Copyright 2019-2024: John C. Bowman and Supakorn "Jamie" Rassameemasmuang
  University of Alberta

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
/*@license for gl-matrix mat3 and mat4 functions:
Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.*/
let vertex="\n#ifdef WEBGL2\n#define IN in\n#define OUT out\n#else\n#define IN attribute\n#define OUT varying\n#endif\n\nIN vec3 position;\n#ifdef WIDTH\nIN float width;\n#endif\n#ifdef NORMAL\nIN vec3 normal;\n#endif\n\nIN float materialIndex;\n\n#ifdef WEBGL2\nflat out int MaterialIndex;\n#ifdef COLOR\nOUT vec4 Color;\n#endif\n\n#else\nOUT vec4 diffuse;\nOUT vec3 specular;\nOUT float roughness,metallic,fresnel0;\nOUT vec4 emissive;\n\nstruct Material {\n  vec4 diffuse,emissive,specular;\n  vec4 parameters;\n};\n\nuniform Material Materials[Nmaterials];\n#endif\n\n#ifdef COLOR\nIN vec4 color;\n#endif\n\nuniform bool orthographic;\nuniform mat3 normMat;\nuniform mat4 viewMat;\nuniform mat4 projViewMat;\n\n#ifdef NORMAL\nOUT vec3 ViewPosition;\nOUT vec3 Normal;\n#endif\n\nvoid main(void)\n{\n  vec4 v=vec4(position,1.0);\n  gl_Position=projViewMat*v;\n\n#ifdef NORMAL\n  ViewPosition=orthographic ? vec3(0.0,0.0,-1.0) : (viewMat*v).xyz;\n  Normal=normalize(normal*normMat);\n#endif\n\n#ifdef WEBGL2\n  MaterialIndex=int(materialIndex);\n#ifdef COLOR\n  Color=color;\n#endif\n#else\n#ifdef NORMAL\n  Material m;\n#ifdef TRANSPARENT\n  m=Materials[int(abs(materialIndex))-1];\n  emissive=m.emissive;\n  if(materialIndex >= 0.0)\n    diffuse=m.diffuse;\n  else {\n    diffuse=color;\n#if nlights == 0\n    emissive += color;\n#endif\n  }\n#else\n  m=Materials[int(materialIndex)];\n  emissive=m.emissive;\n#ifdef COLOR\n  diffuse=color;\n#if nlights == 0\n    emissive += color;\n#endif\n#else\n  diffuse=m.diffuse;\n#endif // COLOR\n#endif // TRANSPARENT\n  specular=m.specular.rgb;\n  vec4 parameters=m.parameters;\n  roughness=1.0-parameters[0];\n  metallic=parameters[1];\n  fresnel0=parameters[2];\n#else\n  emissive=Materials[int(materialIndex)].emissive;\n#endif // NORMAL\n#endif // WEBGL2\n\n#ifdef WIDTH\n  gl_PointSize=width;\n#endif\n}\n",fragment="\n#ifdef WEBGL2\n#define IN in\nout vec4 outValue;\n#define OUTVALUE outValue\n#else\n#define IN varying\n#define OUTVALUE gl_FragColor\n#endif\n\n#ifdef WEBGL2\nflat in int MaterialIndex;\n\nstruct Material {\n  vec4 diffuse,emissive,specular;\n  vec4 parameters;\n};\n\nuniform Material Materials[Nmaterials];\n\nvec4 diffuse;\nvec3 specular;\nfloat roughness,metallic,fresnel0;\nvec4 emissive;\n\n#ifdef COLOR\nin vec4 Color;\n#endif\n\n#else\nIN vec4 diffuse;\nIN vec3 specular;\nIN float roughness,metallic,fresnel0;\nIN vec4 emissive;\n#endif\n\n#ifdef NORMAL\n\nIN vec3 ViewPosition;\nIN vec3 Normal;\n\nvec3 normal;\n\nstruct Light {\n  vec3 direction;\n  vec3 color;\n};\n\nuniform Light Lights[Nlights];\n\n#ifdef USE_IBL\nuniform sampler2D reflBRDFSampler;\nuniform sampler2D diffuseSampler;\nuniform sampler2D reflImgSampler;\n\nconst float pi=acos(-1.0);\nconst float piInv=1.0/pi;\nconst float twopi=2.0*pi;\nconst float twopiInv=1.0/twopi;\n\n// (x,y,z) -> (r,theta,phi);\n// theta -> [0,pi]: colatitude\n// phi -> [-pi,pi]: longitude\nvec3 cart2sphere(vec3 cart)\n{\n  float x=cart.x;\n  float y=cart.z;\n  float z=cart.y;\n\n  float r=length(cart);\n  float theta=r > 0.0 ? acos(z/r) : 0.0;\n  float phi=atan(y,x);\n\n  return vec3(r,theta,phi);\n}\n\nvec2 normalizedAngle(vec3 cartVec)\n{\n  vec3 sphericalVec=cart2sphere(cartVec);\n  sphericalVec.y=sphericalVec.y*piInv;\n  sphericalVec.z=0.75-sphericalVec.z*twopiInv;\n  return sphericalVec.zy;\n}\n\nvec3 IBLColor(vec3 viewDir)\n{\n  vec3 IBLDiffuse=diffuse.rgb*texture(diffuseSampler,normalizedAngle(normal)).rgb;\n  vec3 reflectVec=normalize(reflect(-viewDir,normal));\n  vec2 reflCoord=normalizedAngle(reflectVec);\n  vec3 IBLRefl=textureLod(reflImgSampler,reflCoord,roughness*ROUGHNESS_STEP_COUNT).rgb;\n  vec2 IBLbrdf=texture(reflBRDFSampler,vec2(dot(normal,viewDir),roughness)).rg;\n  float specularMultiplier=fresnel0*IBLbrdf.x+IBLbrdf.y;\n  vec3 dielectric=IBLDiffuse+specularMultiplier*IBLRefl;\n  vec3 metal=diffuse.rgb*IBLRefl;\n  return mix(dielectric,metal,metallic);\n}\n#else\nfloat Roughness2;\nfloat NDF_TRG(vec3 h)\n{\n  float ndoth=max(dot(normal,h),0.0);\n  float alpha2=Roughness2*Roughness2;\n  float denom=ndoth*ndoth*(alpha2-1.0)+1.0;\n  return denom != 0.0 ? 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(D*G)/denom : 0.0;\n\n  vec3 dielectric=mix(lambertian,rawReflectance*specular,F);\n  vec3 metal=rawReflectance*diffuse.rgb;\n\n  return mix(dielectric,metal,metallic);\n}\n#endif\n\n#endif\n\nvoid main(void)\n{\n#ifdef WEBGL2\n#ifdef NORMAL\n  Material m;\n#ifdef TRANSPARENT\n  m=Materials[abs(MaterialIndex)-1];\n  emissive=m.emissive;\n  if(MaterialIndex >= 0)\n    diffuse=m.diffuse;\n  else {\n    diffuse=Color;\n#if nlights == 0\n    emissive += Color;\n#endif\n  }\n#else\n  m=Materials[MaterialIndex];\n  emissive=m.emissive;\n#ifdef COLOR\n  diffuse=Color;\n#if nlights == 0\n    emissive += Color;\n#endif\n#else\n  diffuse=m.diffuse;\n#endif // COLOR\n#endif // TRANSPARENT\n  specular=m.specular.rgb;\n  vec4 parameters=m.parameters;\n  roughness=1.0-parameters[0];\n  metallic=parameters[1];\n  fresnel0=parameters[2];\n#else\n  emissive=Materials[MaterialIndex].emissive;\n#endif // NORMAL\n#endif // WEBGL2\n\n#if defined(NORMAL) && nlights > 0\n  normal=normalize(Normal);\n  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nt{constructor(t,e){this.direction=t,this.color=e}setUniform(e,i){let n=n=>t.getUniformLocation(e,"Lights["+i+"]."+n);t.uniform3fv(n("direction"),new Float32Array(this.direction)),t.uniform3fv(n("color"),new Float32Array(this.color))}}function rt(e=!1){let i=t.getParameter(t.MAX_VERTEX_UNIFORM_VECTORS);r=Math.floor((i-14)/4),m=Math.min(Math.max(m,c.length),r),pixelOpt=["WIDTH"],materialOpt=["NORMAL"],colorOpt=["NORMAL","COLOR"],transparentOpt=["NORMAL","COLOR","TRANSPARENT"],e&&(materialOpt.push("USE_IBL"),transparentOpt.push("USE_IBL")),we=_t(pixelOpt),Me=_t(materialOpt),be=_t(colorOpt),Te=_t(transparentOpt)}function st(){t.deleteProgram(Te),t.deleteProgram(be),t.deleteProgram(Me),t.deleteProgram(we)}function at(){let i=o.webgl2?window.top.document.asygl2[e]:window.top.document.asygl[e];i.gl=t,i.nlights=l.length,i.Nmaterials=m,i.maxMaterials=r,i.pixelShader=we,i.materialShader=Me,i.colorShader=be,i.transparentShader=Te}function ot(t,e){let i;return o.webgl2&&(i=t.getContext("webgl2",{alpha:e}),o.embedded&&!i)?(o.webgl2=!1,o.ibl=!1,lt(!1),null):(i||(o.webgl2=!1,o.ibl=!1,i=t.getContext("webgl",{alpha:e})),i||alert("Could not initialize WebGL"),i)}function ht(){let n=window.top.document;if(asygl=o.webgl2?n.asygl2:n.asygl,asygl[e]&&asygl[e].gl)!function(){let i=o.webgl2?window.top.document.asygl2[e]:window.top.document.asygl[e];t=i.gl,d=i.nlights,m=i.Nmaterials,r=i.maxMaterials,we=i.pixelShader,Me=i.materialShader,be=i.colorShader,Te=i.transparentShader}(),(l.length!=d||Math.min(c.length,r)>m)&&(rt(),at());else{if(rc=ot(i,e),!rc)return;t=rc,rt(),o.webgl2?n.asygl2[e]={}:n.asygl[e]={},at()}}function lt(r=!0){if(o.ibl&&(o.webgl2=!0),e=o.background[3]<1,o.embedded){let t=window.top.document;r&&(n=o.canvas.getContext("2d")),i=o.webgl2?t.offscreen2:t.offscreen,i||(i=t.createElement("canvas"),o.webgl2?t.offscreen2=i:t.offscreen=i),o.webgl2?t.asygl2||(t.asygl2=Array(2)):t.asygl||(t.asygl=Array(2)),ht()}else t=ot(o.canvas,e),rt();$=t.getExtension("OES_element_index_uint"),q=t.TRIANGLES,K=new ft(t.POINTS),Z=new ft(t.LINES),Q=new ft,J=new ft,tt=new ft,et=new ft}function ct(t,e,i,n=[]){let r=o.webgl2?"300 es":"100",s=Array(...n),a=[["nlights",0==V?l.length:0],["Nmaterials",m]],h=[["int","Nlights",Math.max(l.length,1)]];o.webgl2&&s.push("WEBGL2"),o.ibl&&a.push(["ROUGHNESS_STEP_COUNT",8..toFixed(2)]),macros_str=a.map(t=>`#define ${t[0]} ${t[1]}`).join("\n"),define_str=s.map(t=>"#define "+t).join("\n"),const_str=h.map(t=>`const ${t[0]} ${t[1]}=${t[2]};`).join("\n"),ext_str=[].map(t=>`#extension ${t}: enable`).join("\n"),shaderSrc=`#version ${r}\n${ext_str}\n${define_str}\n${const_str}\n${macros_str}\n\n\n#ifdef GL_FRAGMENT_PRECISION_HIGH\nprecision highp float;\n#else\nprecision mediump float;\n#endif\n  \n${e}\n  `;let c=t.createShader(i);return t.shaderSource(c,shaderSrc),t.compileShader(c),t.getShaderParameter(c,t.COMPILE_STATUS)?c:(alert(t.getShaderInfoLog(c)),null)}function dt(e,i,n,r=t.ARRAY_BUFFER){return e.length>0&&(0==i&&(i=t.createBuffer(),n=!0),t.bindBuffer(r,i),n&&t.bufferData(r,e,t.STATIC_DRAW)),i}function mt(e,i,n=e.indices){if(0==e.indices.length)return;let r=i!=we;!function(e,i){let n=i==we;t.useProgram(i),t.enableVertexAttribArray(At),n&&t.enableVertexAttribArray(Nt);let r=!n&&l.length>0;r&&t.enableVertexAttribArray(Et);t.enableVertexAttribArray(It),i.projViewMatUniform=t.getUniformLocation(i,"projViewMat"),i.viewMatUniform=t.getUniformLocation(i,"viewMat"),i.normMatUniform=t.getUniformLocation(i,"normMat"),i.orthographicUniform=t.getUniformLocation(i,"orthographic"),(i==be||i==Te)&&t.enableVertexAttribArray(Lt);if(r)for(let t=0;t<l.length;++t)l[t].setUniform(i,t);for(let t=0;t<e.materials.length;++t)e.materials[t].setUniform(i,t);t.uniformMatrix4fv(i.projViewMatUniform,!1,E),t.uniformMatrix4fv(i.viewMatUniform,!1,A),t.uniformMatrix3fv(i.normMatUniform,!1,I),t.uniform1i(i.orthographicUniform,1,o.orthographic)}(e,i),null!=H&&(t.activeTexture(t.TEXTURE0),t.bindTexture(t.TEXTURE_2D,j),t.uniform1i(t.getUniformLocation(i,"reflBRDFSampler"),0),t.activeTexture(t.TEXTURE1),t.bindTexture(t.TEXTURE_2D,H),t.uniform1i(t.getUniformLocation(i,"diffuseSampler"),1),t.activeTexture(t.TEXTURE2),t.bindTexture(t.TEXTURE_2D,G),t.uniform1i(t.getUniformLocation(i,"reflImgSampler"),2));let s=U||e.partial||!e.rendered;e.verticesBuffer=dt(new Float32Array(e.vertices),e.verticesBuffer,s),t.vertexAttribPointer(At,3,t.FLOAT,!1,r?24:16,0),r?l.length>0&&t.vertexAttribPointer(Et,3,t.FLOAT,!1,24,12):t.vertexAttribPointer(Nt,1,t.FLOAT,!1,16,12),e.materialsBuffer=dt(new Int16Array(e.materialIndices),e.materialsBuffer,s),t.vertexAttribPointer(It,1,t.SHORT,!1,2,0),i!=be&&i!=Te||(e.colorsBuffer=dt(new Float32Array(e.colors),e.colorsBuffer,s),t.vertexAttribPointer(Lt,4,t.FLOAT,!0,0,0)),e.indicesBuffer=dt($?new Uint32Array(n):new Uint16Array(n),e.indicesBuffer,s,t.ELEMENT_ARRAY_BUFFER),e.rendered=!0,t.drawElements(r?V?t.LINES:e.type:t.POINTS,n.length,$?t.UNSIGNED_INT:t.UNSIGNED_SHORT,0)}class ft{constructor(t){this.type=t||q,this.verticesBuffer=0,this.materialsBuffer=0,this.colorsBuffer=0,this.indicesBuffer=0,this.rendered=!1,this.partial=!1,this.clear()}clear(){this.vertices=[],this.materialIndices=[],this.colors=[],this.indices=[],this.nvertices=0,this.materials=[],this.materialTable=[]}vertex(t,e){return this.vertices.push(t[0]),this.vertices.push(t[1]),this.vertices.push(t[2]),this.vertices.push(e[0]),this.vertices.push(e[1]),this.vertices.push(e[2]),this.materialIndices.push(it),this.nvertices++}Vertex(t,e,i=[0,0,0,0]){return this.vertices.push(t[0]),this.vertices.push(t[1]),this.vertices.push(t[2]),this.vertices.push(e[0]),this.vertices.push(e[1]),this.vertices.push(e[2]),this.materialIndices.push(it),this.colors.push(i[0]),this.colors.push(i[1]),this.colors.push(i[2]),this.colors.push(i[3]),this.nvertices++}vertex0(t,e){return this.vertices.push(t[0]),this.vertices.push(t[1]),this.vertices.push(t[2]),this.vertices.push(e),this.materialIndices.push(it),this.nvertices++}iVertex(t,e,i,n,r=[0,0,0,0]){let s=6*t;this.vertices[s]=e[0],this.vertices[s+1]=e[1],this.vertices[s+2]=e[2],this.vertices[s+3]=i[0],this.vertices[s+4]=i[1],this.vertices[s+5]=i[2],this.materialIndices[t]=it;let a=4*t;this.colors[a]=r[0],this.colors[a+1]=r[1],this.colors[a+2]=r[2],this.colors[a+3]=r[3],n&&this.indices.push(t)}append(t){ut(this.vertices,t.vertices),ut(this.materialIndices,t.materialIndices),ut(this.colors,t.colors),function(t,e,i){let n=t.length,r=e.length;t.length+=e.length;for(let s=0;s<r;++s)t[n+s]=e[s]+i}(this.indices,t.indices,this.nvertices),this.nvertices+=t.nvertices}}function ut(t,e){let i=t.length,n=e.length;t.length+=n;for(let r=0;r<n;++r)t[i+r]=e[r]}class pt{constructor(){this.data=new ft,this.Onscreen=!1,this.m=[]}offscreen(t){let e=E,i=t[0],n=i[0],r=i[1],s=i[2],a=1/(e[3]*n+e[7]*r+e[11]*s+e[15]);this.x=this.X=(e[0]*n+e[4]*r+e[8]*s+e[12])*a,this.y=this.Y=(e[1]*n+e[5]*r+e[9]*s+e[13])*a;for(let i=1,n=t.length;i<n;++i){let n=t[i],r=n[0],s=n[1],a=n[2],o=1/(e[3]*r+e[7]*s+e[11]*a+e[15]),h=(e[0]*r+e[4]*s+e[8]*a+e[12])*o,l=(e[1]*r+e[5]*s+e[9]*a+e[13])*o;h<this.x?this.x=h:h>this.X&&(this.X=h),l<this.y?this.y=l:l>this.Y&&(this.Y=l)}return(this.X<-1.01||this.x>1.01||this.Y<-1.01||this.y>1.01)&&(this.Onscreen=!1,!0)}T(t){let e=this.c[0],i=this.c[1],n=this.c[2],r=t[0]-e,s=t[1]-i,a=t[2]-n;return[r*I[0]+s*I[3]+a*I[6]+e,r*I[1]+s*I[4]+a*I[7]+i,r*I[2]+s*I[5]+a*I[8]+n]}Tcorners(t,e){return[this.T(t),this.T([t[0],t[1],e[2]]),this.T([t[0],e[1],t[2]]),this.T([t[0],e[1],e[2]]),this.T([e[0],t[1],t[2]]),this.T([e[0],t[1],e[2]]),this.T([e[0],e[1],t[2]]),this.T(e)]}setMaterial(t,e){null==t.materialTable[this.MaterialIndex]&&(t.materials.length>=m&&(t.partial=!0,e()),t.materialTable[this.MaterialIndex]=t.materials.length,t.materials.push(c[this.MaterialIndex])),it=t.materialTable[this.MaterialIndex]}render(){let t;var e,i;if(this.setMaterialIndex(),0==this.CenterIndex?(e=this.Min,i=this.Max,t=[e,[e[0],e[1],i[2]],[e[0],i[1],e[2]],[e[0],i[1],i[2]],[i[0],e[1],e[2]],[i[0],e[1],i[2]],[i[0],i[1],e[2]],i]):(this.c=o.Centers[this.CenterIndex-1],t=this.Tcorners(this.Min,this.Max)),this.offscreen(t))return this.data.clear(),void this.notRendered();let n,r=this.controlpoints;if(0==this.CenterIndex){if(!U&&this.Onscreen)return void this.append();n=r}else{let t=r.length;n=Array(t);for(let e=0;e<t;++e)n[e]=this.T(r[e])}let s=o.orthographic?1:this.Min[2]/o.maxBound[2],a=.75*Math.hypot(s*(S.xmax-S.xmin),s*(S.ymax-S.ymin))/b;this.res2=a*a,this.Epsilon=.1*a,this.data.clear(),this.notRendered(),this.Onscreen=!0,this.process(n)}}function vt(t,e){let i=t[0],n=t.length;for(let r=1;r<n;++r)i=e(i,t[r]);return i}class xt extends pt{constructor(t,e,i,n,r,s){super(),this.controlpoints=t,this.CenterIndex=e,this.MaterialIndex=i,this.color=n;let a=t.length;if(n){let t=n[0][3]+n[1][3]+n[2][3];this.transparent=16==a||4==a?t+n[3][3]<4:t<3}else this.transparent=c[i].diffuse[3]<1;this.vertex=this.transparent?this.data.Vertex.bind(this.data):this.data.vertex.bind(this.data);let o=this.L2norm2(this.controlpoints),h=Math.sqrt(1e3*Number.EPSILON*o);this.epsilon=o*Number.EPSILON,this.Min=r||this.Bounds(this.controlpoints,Math.min,h),this.Max=s||this.Bounds(this.controlpoints,Math.max,h)}setMaterialIndex(){this.transparent?this.setMaterial(tt,Ne):this.color?this.setMaterial(J,Ie):this.setMaterial(Q,Ee)}cornerbound(t,e){let i=e(t[0],t[3]);return i=e(i,t[12]),e(i,t[15])}controlbound(t,e){let i=e(t[1],t[2]);return i=e(i,t[4]),i=e(i,t[5]),i=e(i,t[6]),i=e(i,t[7]),i=e(i,t[8]),i=e(i,t[9]),i=e(i,t[10]),i=e(i,t[11]),i=e(i,t[13]),e(i,t[14])}bound(t,e,i,n,r){if(i=e(i,this.cornerbound(t,e)),e(-1,1)*(i-this.controlbound(t,e))>=-n||0==r)return i;--r,n*=2;let s=new Ot(t[0],t[1],t[2],t[3]),a=new Ot(t[4],t[5],t[6],t[7]),o=new Ot(t[8],t[9],t[10],t[11]),h=new Ot(t[12],t[13],t[14],t[15]),l=new Ot(t[0],t[4],t[8],t[12]),c=new Ot(s.m0,a.m0,o.m0,h.m0),d=new Ot(s.m3,a.m3,o.m3,h.m3),m=new Ot(s.m5,a.m5,o.m5,h.m5),f=new Ot(s.m4,a.m4,o.m4,h.m4),u=new Ot(s.m2,a.m2,o.m2,h.m2),p=new Ot(t[3],t[7],t[11],t[15]),v=[t[0],s.m0,s.m3,s.m5,l.m0,c.m0,d.m0,m.m0,l.m3,c.m3,d.m3,m.m3,l.m5,c.m5,d.m5,m.m5];i=this.bound(v,e,i,n,r);let x=[l.m5,c.m5,d.m5,m.m5,l.m4,c.m4,d.m4,m.m4,l.m2,c.m2,d.m2,m.m2,t[12],h.m0,h.m3,h.m5];i=this.bound(x,e,i,n,r);let g=[m.m5,f.m5,u.m5,p.m5,m.m4,f.m4,u.m4,p.m4,m.m2,f.m2,u.m2,p.m2,h.m5,h.m4,h.m2,t[15]];i=this.bound(g,e,i,n,r);let w=[s.m5,s.m4,s.m2,t[3],m.m0,f.m0,u.m0,p.m0,m.m3,f.m3,u.m3,p.m3,m.m5,f.m5,u.m5,p.m5];return this.bound(w,e,i,n,r)}cornerboundtri(t,e){let i=e(t[0],t[6]);return e(i,t[9])}controlboundtri(t,e){let i=e(t[1],t[2]);return i=e(i,t[3]),i=e(i,t[4]),i=e(i,t[5]),i=e(i,t[7]),e(i,t[8])}boundtri(t,e,i,n,r){if(i=e(i,this.cornerboundtri(t,e)),e(-1,1)*(i-this.controlboundtri(t,e))>=-n||0==r)return i;--r,n*=2;let s=new St(t),a=[s.l003,s.l102,s.l012,s.l201,s.l111,s.l021,s.l300,s.l210,s.l120,s.l030];i=this.boundtri(a,e,i,n,r);let o=[s.l300,s.r102,s.r012,s.r201,s.r111,s.r021,s.r300,s.r210,s.r120,s.r030];i=this.boundtri(o,e,i,n,r);let h=[s.l030,s.u102,s.u012,s.u201,s.u111,s.u021,s.r030,s.u210,s.u120,s.u030];i=this.boundtri(h,e,i,n,r);let l=[s.r030,s.u201,s.r021,s.u102,s.c111,s.r012,s.l030,s.l120,s.l210,s.l300];return this.boundtri(l,e,i,n,r)}Bounds(t,e,i){let n=Array(3),r=t.length,s=Array(r);for(let a=0;a<3;++a){for(let e=0;e<r;++e)s[e]=t[e][a];n[a]=16==r?this.bound(s,e,s[0],i,p):10==r?this.boundtri(s,e,s[0],i,p):vt(s,e)}return[n[0],n[1],n[2]]}L2norm2(t){let e=t[0],i=0,n=t.length;for(let r=1;r<n;++r)i=Math.max(i,Vt([t[r][0]-e[0],t[r][1]-e[1],t[r][2]-e[2]]));return i}processTriangle(t){let e=t[0],i=t[1],n=t[2],r=Ut(Dt([i[0]-e[0],i[1]-e[1],i[2]-e[2]],[n[0]-e[0],n[1]-e[1],n[2]-e[2]]));if(!this.offscreen([e,i,n])){let t,s,a;this.color?(t=this.data.Vertex(e,r,this.color[0]),s=this.data.Vertex(i,r,this.color[1]),a=this.data.Vertex(n,r,this.color[2])):(t=this.vertex(e,r),s=this.vertex(i,r),a=this.vertex(n,r)),0==V?(this.data.indices.push(t),this.data.indices.push(s),this.data.indices.push(a)):(this.data.indices.push(t),this.data.indices.push(s),this.data.indices.push(s),this.data.indices.push(a),this.data.indices.push(a),this.data.indices.push(t)),this.append()}}processQuad(t){let e=t[0],i=t[1],n=t[2],r=t[3],s=Dt([i[0]-e[0],i[1]-e[1],i[2]-e[2]],[n[0]-i[0],n[1]-i[1],n[2]-i[2]]),a=Dt([n[0]-r[0],n[1]-r[1],n[2]-r[2]],[r[0]-e[0],r[1]-e[1],r[2]-e[2]]),o=Ut([s[0]+a[0],s[1]+a[1],s[2]+a[2]]);if(!this.offscreen([e,i,n,r])){let t,s,a,h;this.color?(t=this.data.Vertex(e,o,this.color[0]),s=this.data.Vertex(i,o,this.color[1]),a=this.data.Vertex(n,o,this.color[2]),h=this.data.Vertex(r,o,this.color[3])):(t=this.vertex(e,o),s=this.vertex(i,o),a=this.vertex(n,o),h=this.vertex(r,o)),0==V?(this.data.indices.push(t),this.data.indices.push(s),this.data.indices.push(a),this.data.indices.push(t),this.data.indices.push(a),this.data.indices.push(h)):(this.data.indices.push(t),this.data.indices.push(s),this.data.indices.push(s),this.data.indices.push(a),this.data.indices.push(a),this.data.indices.push(h),this.data.indices.push(h),this.data.indices.push(t)),this.append()}}curve(t,e,i,n,r){new Mt([t[e],t[i],t[n],t[r]],0,it,this.Min,this.Max).render()}process(t){if(this.transparent&&1!=V&&(it=this.color?-1-it:1+it),10==t.length)return this.process3(t);if(3==t.length)return this.processTriangle(t);if(4==t.length)return this.processQuad(t);if(1==V)return this.curve(t,0,4,8,12),this.curve(t,12,13,14,15),this.curve(t,15,11,7,3),void this.curve(t,3,2,1,0);let e=t[0],i=t[3],n=t[12],r=t[15],s=this.normal(i,t[2],t[1],e,t[4],t[8],n);Vt(s)<this.epsilon&&(s=this.normal(i,t[2],t[1],e,t[13],t[14],r),Vt(s)<this.epsilon&&(s=this.normal(r,t[11],t[7],i,t[4],t[8],n)));let a=this.normal(e,t[4],t[8],n,t[13],t[14],r);Vt(a)<this.epsilon&&(a=this.normal(e,t[4],t[8],n,t[11],t[7],i),Vt(a)<this.epsilon&&(a=this.normal(i,t[2],t[1],e,t[13],t[14],r)));let o=this.normal(n,t[13],t[14],r,t[11],t[7],i);Vt(o)<this.epsilon&&(o=this.normal(n,t[13],t[14],r,t[2],t[1],e),Vt(o)<this.epsilon&&(o=this.normal(e,t[4],t[8],n,t[11],t[7],i)));let h=this.normal(r,t[11],t[7],i,t[2],t[1],e);if(Vt(h)<this.epsilon&&(h=this.normal(r,t[11],t[7],i,t[4],t[8],n),Vt(h)<this.epsilon&&(h=this.normal(n,t[13],t[14],r,t[2],t[1],e))),this.color){let l=this.color[0],c=this.color[1],d=this.color[2],m=this.color[3],f=this.data.Vertex(e,s,l),u=this.data.Vertex(n,a,c),p=this.data.Vertex(r,o,d),v=this.data.Vertex(i,h,m);this.Render(t,f,u,p,v,e,n,r,i,!1,!1,!1,!1,l,c,d,m)}else{let l=this.vertex(e,s),c=this.vertex(n,a),d=this.vertex(r,o),m=this.vertex(i,h);this.Render(t,l,c,d,m,e,n,r,i,!1,!1,!1,!1)}this.data.indices.length>0&&this.append()}append(){this.transparent?tt.append(this.data):this.color?J.append(this.data):Q.append(this.data)}notRendered(){this.transparent?tt.rendered=!1:this.color?J.rendered=!1:Q.rendered=!1}Render(t,e,i,n,r,s,a,o,h,l,c,d,m,f,u,p,v){let x=this.Distance(t);if(x[0]<this.res2&&x[1]<this.res2)this.offscreen([s,a,o])||(0==V?(this.data.indices.push(e),this.data.indices.push(i),this.data.indices.push(n)):(this.data.indices.push(e),this.data.indices.push(i),this.data.indices.push(i),this.data.indices.push(n))),this.offscreen([s,o,h])||(0==V?(this.data.indices.push(e),this.data.indices.push(n),this.data.indices.push(r)):(this.data.indices.push(n),this.data.indices.push(r),this.data.indices.push(r),this.data.indices.push(e)));else{if(this.offscreen(t))return;let g=t[0],w=t[3],M=t[12],b=t[15];if(x[0]<this.res2){let x=new Pt(g,t[1],t[2],w),T=new Pt(t[4],t[5],t[6],t[7]),R=new Pt(t[8],t[9],t[10],t[11]),y=new Pt(M,t[13],t[14],b),A=[g,x.m0,x.m3,x.m5,t[4],T.m0,T.m3,T.m5,t[8],R.m0,R.m3,R.m5,M,y.m0,y.m3,y.m5],E=[x.m5,x.m4,x.m2,w,T.m5,T.m4,T.m2,t[7],R.m5,R.m4,R.m2,t[11],y.m5,y.m4,y.m2,b],I=this.normal(A[12],A[13],A[14],A[15],A[11],A[7],A[3]);Vt(I)<=this.epsilon&&(I=this.normal(A[12],A[13],A[14],A[15],A[2],A[1],A[0]),Vt(I)<=this.epsilon&&(I=this.normal(A[0],A[4],A[8],A[12],A[11],A[7],A[3])));let L=this.normal(E[3],E[2],E[1],E[0],E[4],E[8],E[12]);Vt(L)<=this.epsilon&&(L=this.normal(E[3],E[2],E[1],E[0],E[13],E[14],E[15]),Vt(L)<=this.epsilon&&(L=this.normal(E[15],E[11],E[7],E[3],E[4],E[8],E[12])));let N=this.Epsilon,_=[.5*(a[0]+o[0]),.5*(a[1]+o[1]),.5*(a[2]+o[2])];if(!c)if(c=Wt(M,t[13],t[14],b)<this.res2){let t=Ut(this.differential(E[12],E[8],E[4],E[0]));_=[_[0]-N*t[0],_[1]-N*t[1],_[2]-N*t[2]]}else _=A[15];let O=[.5*(h[0]+s[0]),.5*(h[1]+s[1]),.5*(h[2]+s[2])];if(!m)if(m=Wt(g,t[1],t[2],w)<this.res2){let t=Ut(this.differential(A[3],A[7],A[11],A[15]));O=[O[0]-N*t[0],O[1]-N*t[1],O[2]-N*t[2]]}else O=E[0];if(f){let t=Array(4),x=Array(4);for(let e=0;e<4;++e)t[e]=.5*(u[e]+p[e]),x[e]=.5*(v[e]+f[e]);let g=this.data.Vertex(_,I,t),w=this.data.Vertex(O,L,x);this.Render(A,e,i,g,w,s,a,_,O,l,c,!1,m,f,u,t,x),this.Render(E,w,g,n,r,O,_,o,h,!1,c,d,m,x,t,p,v)}else{let t=this.vertex(_,I),f=this.vertex(O,L);this.Render(A,e,i,t,f,s,a,_,O,l,c,!1,m),this.Render(E,f,t,n,r,O,_,o,h,!1,c,d,m)}return}if(x[1]<this.res2){let x=new Pt(g,t[4],t[8],M),T=new Pt(t[1],t[5],t[9],t[13]),R=new Pt(t[2],t[6],t[10],t[14]),y=new Pt(w,t[7],t[11],b),A=[g,t[1],t[2],w,x.m0,T.m0,R.m0,y.m0,x.m3,T.m3,R.m3,y.m3,x.m5,T.m5,R.m5,y.m5],E=[x.m5,T.m5,R.m5,y.m5,x.m4,T.m4,R.m4,y.m4,x.m2,T.m2,R.m2,y.m2,M,t[13],t[14],b],I=this.normal(A[0],A[4],A[8],A[12],A[13],A[14],A[15]);Vt(I)<=this.epsilon&&(I=this.normal(A[0],A[4],A[8],A[12],A[11],A[7],A[3]),Vt(I)<=this.epsilon&&(I=this.normal(A[3],A[2],A[1],A[0],A[13],A[14],A[15])));let L=this.normal(E[15],E[11],E[7],E[3],E[2],E[1],E[0]);Vt(L)<=this.epsilon&&(L=this.normal(E[15],E[11],E[7],E[3],E[4],E[8],E[12]),Vt(L)<=this.epsilon&&(L=this.normal(E[12],E[13],E[14],E[15],E[2],E[1],E[0])));let N=this.Epsilon,_=[.5*(s[0]+a[0]),.5*(s[1]+a[1]),.5*(s[2]+a[2])];if(!l)if(l=Wt(g,t[4],t[8],M)<this.res2){let t=Ut(this.differential(E[0],E[1],E[2],E[3]));_=[_[0]-N*t[0],_[1]-N*t[1],_[2]-N*t[2]]}else _=A[12];let O=[.5*(o[0]+h[0]),.5*(o[1]+h[1]),.5*(o[2]+h[2])];if(!d)if(d=Wt(b,t[11],t[7],w)<this.res2){let t=Ut(this.differential(A[15],A[14],A[13],A[12]));O=[O[0]-N*t[0],O[1]-N*t[1],O[2]-N*t[2]]}else O=E[3];if(f){let t=Array(4),x=Array(4);for(let e=0;e<4;++e)t[e]=.5*(f[e]+u[e]),x[e]=.5*(p[e]+v[e]);let g=this.data.Vertex(_,I,t),w=this.data.Vertex(O,L,x);this.Render(A,e,g,w,r,s,_,O,h,l,!1,d,m,f,t,x,v),this.Render(E,g,i,n,w,_,a,o,O,l,c,d,!1,t,u,p,x)}else{let t=this.vertex(_,I),f=this.vertex(O,L);this.Render(A,e,t,f,r,s,_,O,h,l,!1,d,m),this.Render(E,t,i,n,f,_,a,o,O,l,c,d,!1)}return}let T=new Pt(g,t[1],t[2],w),R=new Pt(t[4],t[5],t[6],t[7]),y=new Pt(t[8],t[9],t[10],t[11]),A=new Pt(M,t[13],t[14],b),E=new Pt(g,t[4],t[8],M),I=new Pt(T.m0,R.m0,y.m0,A.m0),L=new Pt(T.m3,R.m3,y.m3,A.m3),N=new Pt(T.m5,R.m5,y.m5,A.m5),_=new Pt(T.m4,R.m4,y.m4,A.m4),O=new Pt(T.m2,R.m2,y.m2,A.m2),P=new Pt(w,t[7],t[11],b),S=[g,T.m0,T.m3,T.m5,E.m0,I.m0,L.m0,N.m0,E.m3,I.m3,L.m3,N.m3,E.m5,I.m5,L.m5,N.m5],U=[E.m5,I.m5,L.m5,N.m5,E.m4,I.m4,L.m4,N.m4,E.m2,I.m2,L.m2,N.m2,M,A.m0,A.m3,A.m5],V=[N.m5,_.m5,O.m5,P.m5,N.m4,_.m4,O.m4,P.m4,N.m2,_.m2,O.m2,P.m2,A.m5,A.m4,A.m2,b],B=[T.m5,T.m4,T.m2,w,N.m0,_.m0,O.m0,P.m0,N.m3,_.m3,O.m3,P.m3,N.m5,_.m5,O.m5,P.m5],D=S[15],C=this.normal(S[0],S[4],S[8],S[12],S[13],S[14],S[15]);Vt(C)<this.epsilon&&(C=this.normal(S[0],S[4],S[8],S[12],S[11],S[7],S[3]),Vt(C)<this.epsilon&&(C=this.normal(S[3],S[2],S[1],S[0],S[13],S[14],S[15])));let F=this.normal(U[12],U[13],U[14],U[15],U[11],U[7],U[3]);Vt(F)<this.epsilon&&(F=this.normal(U[12],U[13],U[14],U[15],U[2],U[1],U[0]),Vt(F)<this.epsilon&&(F=this.normal(U[0],U[4],U[8],U[12],U[11],U[7],U[3])));let z=this.normal(V[15],V[11],V[7],V[3],V[2],V[1],V[0]);Vt(z)<this.epsilon&&(z=this.normal(V[15],V[11],V[7],V[3],V[4],V[8],V[12]),Vt(z)<this.epsilon&&(z=this.normal(V[12],V[13],V[14],V[15],V[2],V[1],V[0])));let X=this.normal(B[3],B[2],B[1],B[0],B[4],B[8],B[12]);Vt(X)<this.epsilon&&(X=this.normal(B[3],B[2],B[1],B[0],B[13],B[14],B[15]),Vt(X)<this.epsilon&&(X=this.normal(B[15],B[11],B[7],B[3],B[4],B[8],B[12])));let W=this.normal(V[3],V[2],V[1],D,V[4],V[8],V[12]),G=this.Epsilon,H=[.5*(s[0]+a[0]),.5*(s[1]+a[1]),.5*(s[2]+a[2])];if(!l)if(l=Wt(g,t[4],t[8],M)<this.res2){let t=Ut(this.differential(U[0],U[1],U[2],U[3]));H=[H[0]-G*t[0],H[1]-G*t[1],H[2]-G*t[2]]}else H=S[12];let j=[.5*(a[0]+o[0]),.5*(a[1]+o[1]),.5*(a[2]+o[2])];if(!c)if(c=Wt(M,t[13],t[14],b)<this.res2){let t=Ut(this.differential(V[12],V[8],V[4],V[0]));j=[j[0]-G*t[0],j[1]-G*t[1],j[2]-G*t[2]]}else j=U[15];let k=[.5*(o[0]+h[0]),.5*(o[1]+h[1]),.5*(o[2]+h[2])];if(!d)if(d=Wt(b,t[11],t[7],w)<this.res2){let t=Ut(this.differential(B[15],B[14],B[13],B[12]));k=[k[0]-G*t[0],k[1]-G*t[1],k[2]-G*t[2]]}else k=V[3];let Y=[.5*(h[0]+s[0]),.5*(h[1]+s[1]),.5*(h[2]+s[2])];if(!m)if(m=Wt(g,t[1],t[2],w)<this.res2){let t=Ut(this.differential(S[3],S[7],S[11],S[15]));Y=[Y[0]-G*t[0],Y[1]-G*t[1],Y[2]-G*t[2]]}else Y=B[0];if(f){let t=Array(4),x=Array(4),g=Array(4),w=Array(4),M=Array(4);for(let e=0;e<4;++e)t[e]=.5*(f[e]+u[e]),x[e]=.5*(u[e]+p[e]),g[e]=.5*(p[e]+v[e]),w[e]=.5*(v[e]+f[e]),M[e]=.5*(t[e]+g[e]);let b=this.data.Vertex(H,C,t),T=this.data.Vertex(j,F,x),R=this.data.Vertex(k,z,g),y=this.data.Vertex(Y,X,w),A=this.data.Vertex(D,W,M);this.Render(S,e,b,A,y,s,H,D,Y,l,!1,!1,m,f,t,M,w),this.Render(U,b,i,T,A,H,a,j,D,l,c,!1,!1,t,u,x,M),this.Render(V,A,T,n,R,D,j,o,k,!1,c,d,!1,M,x,p,g),this.Render(B,y,A,R,r,Y,D,k,h,!1,!1,d,m,w,M,g,v)}else{let t=this.vertex(H,C),f=this.vertex(j,F),u=this.vertex(k,z),p=this.vertex(Y,X),v=this.vertex(D,W);this.Render(S,e,t,v,p,s,H,D,Y,l,!1,!1,m),this.Render(U,t,i,f,v,H,a,j,D,l,c,!1,!1),this.Render(V,v,f,n,u,D,j,o,k,!1,c,d,!1),this.Render(B,p,v,u,r,Y,D,k,h,!1,!1,d,m)}}}process3(t){if(1==V)return this.curve(t,0,1,3,6),this.curve(t,6,7,8,9),void this.curve(t,9,5,2,0);let e=t[0],i=t[6],n=t[9],r=this.normal(n,t[5],t[2],e,t[1],t[3],i),s=this.normal(e,t[1],t[3],i,t[7],t[8],n),a=this.normal(i,t[7],t[8],n,t[5],t[2],e);if(this.color){let o=this.color[0],h=this.color[1],l=this.color[2],c=this.data.Vertex(e,r,o),d=this.data.Vertex(i,s,h),m=this.data.Vertex(n,a,l);this.Render3(t,c,d,m,e,i,n,!1,!1,!1,o,h,l)}else{let o=this.vertex(e,r),h=this.vertex(i,s),l=this.vertex(n,a);this.Render3(t,o,h,l,e,i,n,!1,!1,!1)}this.data.indices.length>0&&this.append()}Render3(t,e,i,n,r,s,a,o,h,l,c,d,m){if(this.Distance3(t)<this.res2)this.offscreen([r,s,a])||(0==V?(this.data.indices.push(e),this.data.indices.push(i),this.data.indices.push(n)):(this.data.indices.push(e),this.data.indices.push(i),this.data.indices.push(i),this.data.indices.push(n),this.data.indices.push(n),this.data.indices.push(e)));else{if(this.offscreen(t))return;let f=t[0],u=t[1],p=t[2],v=t[3],x=t[4],g=t[5],w=t[6],M=t[7],b=t[8],T=t[9],R=[.5*(T[0]+g[0]),.5*(T[1]+g[1]),.5*(T[2]+g[2])],y=[.5*(T[0]+b[0]),.5*(T[1]+b[1]),.5*(T[2]+b[2])],A=[.5*(g[0]+p[0]),.5*(g[1]+p[1]),.5*(g[2]+p[2])],E=[.5*(b[0]+x[0]),.5*(b[1]+x[1]),.5*(b[2]+x[2])],I=[.5*(b[0]+M[0]),.5*(b[1]+M[1]),.5*(b[2]+M[2])],L=[.5*(p[0]+x[0]),.5*(p[1]+x[1]),.5*(p[2]+x[2])],N=[.5*(p[0]+f[0]),.5*(p[1]+f[1]),.5*(p[2]+f[2])],_=[.5*(x[0]+v[0]),.5*(x[1]+v[1]),.5*(x[2]+v[2])],O=[.5*(M[0]+w[0]),.5*(M[1]+w[1]),.5*(M[2]+w[2])],P=[.5*(f[0]+u[0]),.5*(f[1]+u[1]),.5*(f[2]+u[2])],S=[.5*(u[0]+v[0]),.5*(u[1]+v[1]),.5*(u[2]+v[2])],U=[.5*(v[0]+w[0]),.5*(v[1]+w[1]),.5*(v[2]+w[2])],V=[.5*(R[0]+A[0]),.5*(R[1]+A[1]),.5*(R[2]+A[2])],B=[.5*(y[0]+I[0]),.5*(y[1]+I[1]),.5*(y[2]+I[2])],D=[.5*(A[0]+N[0]),.5*(A[1]+N[1]),.5*(A[2]+N[2])],C=[.5*E[0]+.25*(x[0]+u[0]),.5*E[1]+.25*(x[1]+u[1]),.5*E[2]+.25*(x[2]+u[2])],F=[.5*(I[0]+O[0]),.5*(I[1]+O[1]),.5*(I[2]+O[2])],z=[.5*L[0]+.25*(x[0]+M[0]),.5*L[1]+.25*(x[1]+M[1]),.5*L[2]+.25*(x[2]+M[2])],X=[.25*(g[0]+x[0])+.5*_[0],.25*(g[1]+x[1])+.5*_[1],.25*(g[2]+x[2])+.5*_[2]],W=[.5*(P[0]+S[0]),.5*(P[1]+S[1]),.5*(P[2]+S[2])],G=[.5*(S[0]+U[0]),.5*(S[1]+U[1]),.5*(S[2]+U[2])],H=[.5*(z[0]+W[0]),.5*(z[1]+W[1]),.5*(z[2]+W[2])],j=[.5*(z[0]+G[0]),.5*(z[1]+G[1]),.5*(z[2]+G[2])],k=[.5*(W[0]+G[0]),.5*(W[1]+G[1]),.5*(W[2]+G[2])],Y=[.5*(X[0]+F[0]),.5*(X[1]+F[1]),.5*(X[2]+F[2])],$=[.5*(B[0]+X[0]),.5*(B[1]+X[1]),.5*(B[2]+X[2])],q=[.5*(B[0]+F[0]),.5*(B[1]+F[1]),.5*(B[2]+F[2])],K=[.5*(V[0]+C[0]),.5*(V[1]+C[1]),.5*(V[2]+C[2])],Z=[.5*(D[0]+C[0]),.5*(D[1]+C[1]),.5*(D[2]+C[2])],Q=[.5*(V[0]+D[0]),.5*(V[1]+D[1]),.5*(V[2]+D[2])],J=[f,P,N,W,[.5*(L[0]+P[0]),.5*(L[1]+P[1]),.5*(L[2]+P[2])],D,k,H,Z,Q],tt=[k,G,j,U,[.5*(_[0]+O[0]),.5*(_[1]+O[1]),.5*(_[2]+O[2])],Y,w,O,F,q],et=[Q,K,V,$,[.5*(R[0]+E[0]),.5*(R[1]+E[1]),.5*(R[2]+E[2])],R,q,B,y,T],it=[q,$,Y,K,[.25*(A[0]+I[0]+S[0]+x[0]),.25*(A[1]+I[1]+S[1]+x[1]),.25*(A[2]+I[2]+S[2]+x[2])],j,Q,Z,H,k],nt=this.normal(k,j,Y,q,$,K,Q),rt=this.normal(q,$,K,Q,Z,H,k),st=this.normal(Q,Z,H,k,j,Y,q),at=this.Epsilon,ot=[.5*(s[0]+a[0]),.5*(s[1]+a[1]),.5*(s[2]+a[2])];if(!o)if(o=Wt(w,M,b,T)<this.res2){let t=Ut(this.sumdifferential(it[0],it[2],it[5],it[9],it[1],it[3],it[6]));ot=[ot[0]-at*t[0],ot[1]-at*t[1],ot[2]-at*t[2]]}else ot=q;let ht=[.5*(a[0]+r[0]),.5*(a[1]+r[1]),.5*(a[2]+r[2])];if(!h)if(h=Wt(f,p,g,T)<this.res2){let t=Ut(this.sumdifferential(it[6],it[3],it[1],it[0],it[7],it[8],it[9]));ht=[ht[0]-at*t[0],ht[1]-at*t[1],ht[2]-at*t[2]]}else ht=Q;let lt=[.5*(r[0]+s[0]),.5*(r[1]+s[1]),.5*(r[2]+s[2])];if(!l)if(l=Wt(f,u,v,w)<this.res2){let t=Ut(this.sumdifferential(it[9],it[8],it[7],it[6],it[5],it[2],it[0]));lt=[lt[0]-at*t[0],lt[1]-at*t[1],lt[2]-at*t[2]]}else lt=k;if(c){let t=Array(4),f=Array(4),u=Array(4);for(let e=0;e<4;++e)t[e]=.5*(d[e]+m[e]),f[e]=.5*(m[e]+c[e]),u[e]=.5*(c[e]+d[e]);let p=this.data.Vertex(ot,nt,t),v=this.data.Vertex(ht,rt,f),x=this.data.Vertex(lt,st,u);this.Render3(J,e,x,v,r,lt,ht,!1,h,l,c,u,f),this.Render3(tt,x,i,p,lt,s,ot,o,!1,l,u,d,t),this.Render3(et,v,p,n,ht,ot,a,o,h,!1,f,t,m),this.Render3(it,p,v,x,ot,ht,lt,!1,!1,!1,t,f,u)}else{let t=this.vertex(ot,nt),c=this.vertex(ht,rt),d=this.vertex(lt,st);this.Render3(J,e,d,c,r,lt,ht,!1,h,l),this.Render3(tt,d,i,t,lt,s,ot,o,!1,l),this.Render3(et,c,t,n,ht,ot,a,o,h,!1),this.Render3(it,t,c,d,ot,ht,lt,!1,!1,!1)}}}Distance(t){let e=t[0],i=t[3],n=t[12],r=t[15],s=Gt(e,n,i,r);s=Math.max(s,Wt(e,t[4],t[8],n)),s=Math.max(s,Wt(t[1],t[5],t[9],t[13])),s=Math.max(s,Wt(i,t[7],t[11],r)),s=Math.max(s,Wt(t[2],t[6],t[10],t[14]));let a=Gt(e,i,n,r);return a=Math.max(a,Wt(e,t[1],t[2],i)),a=Math.max(a,Wt(t[4],t[5],t[6],t[7])),a=Math.max(a,Wt(t[8],t[9],t[10],t[11])),a=Math.max(a,Wt(n,t[13],t[14],r)),[s,a]}Distance3(t){let e=t[0],i=t[4],n=t[6],r=t[9],s=Vt([(e[0]+n[0]+r[0])*(1/3)-i[0],(e[1]+n[1]+r[1])*(1/3)-i[1],(e[2]+n[2]+r[2])*(1/3)-i[2]]);return s=Math.max(s,Wt(e,t[1],t[3],n)),s=Math.max(s,Wt(e,t[2],t[5],r)),Math.max(s,Wt(n,t[7],t[8],r))}differential(t,e,i,n){let r=[3*(e[0]-t[0]),3*(e[1]-t[1]),3*(e[2]-t[2])];return Vt(r)>this.epsilon?r:(r=zt(t,e,i),Vt(r)>this.epsilon?r:Xt(t,e,i,n))}sumdifferential(t,e,i,n,r,s,a){let o=this.differential(t,e,i,n),h=this.differential(t,r,s,a);return[o[0]+h[0],o[1]+h[1],o[2]+h[2]]}normal(t,e,i,n,r,s,a){let o=3*(r[0]-n[0]),h=3*(r[1]-n[1]),l=3*(r[2]-n[2]),c=3*(i[0]-n[0]),d=3*(i[1]-n[1]),m=3*(i[2]-n[2]),f=[h*m-l*d,l*c-o*m,o*d-h*c];if(Vt(f)>this.epsilon)return f;let u=[c,d,m],p=[o,h,l],v=zt(n,i,e),x=zt(n,r,s),g=Dt(x,u),w=Dt(p,v);if(f=[g[0]+w[0],g[1]+w[1],g[2]+w[2]],Vt(f)>this.epsilon)return f;let M=Xt(n,i,e,t),b=Xt(n,r,s,a);g=Dt(p,M),w=Dt(b,u);let T=Dt(x,v);return f=[g[0]+w[0]+T[0],g[1]+w[1]+T[1],g[2]+w[2]+T[2]],Vt(f)>this.epsilon?f:(g=Dt(b,v),w=Dt(x,M),f=[g[0]+w[0],g[1]+w[1],g[2]+w[2]],Vt(f)>this.epsilon?f:Dt(b,M))}}function gt(t){return 0<=t&&t<=1}class wt{constructor(t,e,i){const n=1e3*Number.EPSILON,r=n*n;if(Math.abs(t)<=n*Math.abs(e)+r*Math.abs(i))Math.abs(e)>n*Math.abs(i)?(this.roots=1,this.t1=-i/e):0==i?(this.roots=1,this.t1=0):this.roots=0;else{let r=.5*e/t,s=e*r;if(Math.abs(s)<=n*Math.abs(i)){let e=-i/t;e>=0?(this.roots=2,this.t2=Math.sqrt(e),this.t1=-this.t2):this.roots=0}else{let t=-2*i/s;if(t>-1){this.roots=2;let e=r*function(t){return t/(Math.sqrt(1+t)+1)}(t),i=-e-2*r;i<=e?(this.t1=i,this.t2=e):(this.t1=e,this.t2=i)}else-1==t?(this.roots=1,this.t1=this.t2=-r):this.roots=0}}}}class Mt extends pt{constructor(t,e,i,n,r){if(super(),this.controlpoints=t,this.CenterIndex=e,this.MaterialIndex=i,n&&r)this.Min=n,this.Max=r;else{let t=this.Bounds(this.controlpoints);this.Min=t[0],this.Max=t[1]}}Bounds(t){let e=Array(3),i=Array(3),n=t.length,r=Array(n);for(let h=0;h<3;++h){for(let e=0;e<n;++e)r[e]=t[e][h];let l,c;if(l=c=r[0],4==n){l=Math.min(l,r[3]),c=Math.max(c,r[3]);let t=(s=r[0],a=r[1],o=r[2],[r[3]-s+3*(a-o),2*(s+o)-4*a,a-s]),e=new wt(t[0],t[1],t[2]);if(0!=e.roots&&gt(e.t1)){let t=Ct(r[0],r[1],r[2],r[3],e.t1);l=Math.min(l,t),c=Math.max(c,t)}if(2==e.roots&&gt(e.t2)){let t=Ct(r[0],r[1],r[2],r[3],e.t2);l=Math.min(l,t),c=Math.max(c,t)}}else{let t=r[1];l=Math.min(l,t),c=Math.max(c,t)}e[h]=l,i[h]=c}var s,a,o;return[[e[0],e[1],e[2]],[i[0],i[1],i[2]]]}setMaterialIndex(){this.setMaterial(Z,Ae)}processLine(t){let e=t[0],i=t[1];if(!this.offscreen([e,i])){let t=[0,0,1];this.data.indices.push(this.data.vertex(e,t)),this.data.indices.push(this.data.vertex(i,t)),this.append()}}process(t){if(2==t.length)return this.processLine(t);let e=t[0],i=t[1],n=t[2],r=t[3],s=this.normal(Ft(e,i),zt(e,i,n)),a=this.normal(Ft(n,r),zt(r,n,i)),o=this.data.vertex(e,s),h=this.data.vertex(r,a);this.Render(t,o,h),this.data.indices.length>0&&this.append()}append(){Z.append(this.data)}notRendered(){Z.rendered=!1}Render(t,e,i){let n=t[0],r=t[1],s=t[2],a=t[3];if(Wt(n,r,s,a)<this.res2)this.offscreen([n,a])||(this.data.indices.push(e),this.data.indices.push(i));else{if(this.offscreen(t))return;let o=[.5*(n[0]+r[0]),.5*(n[1]+r[1]),.5*(n[2]+r[2])],h=[.5*(r[0]+s[0]),.5*(r[1]+s[1]),.5*(r[2]+s[2])],l=[.5*(s[0]+a[0]),.5*(s[1]+a[1]),.5*(s[2]+a[2])],c=[.5*(o[0]+h[0]),.5*(o[1]+h[1]),.5*(o[2]+h[2])],d=[.5*(h[0]+l[0]),.5*(h[1]+l[1]),.5*(h[2]+l[2])],m=[.5*(c[0]+d[0]),.5*(c[1]+d[1]),.5*(c[2]+d[2])],f=[n,o,c,m],u=[m,d,l,a],p=this.normal(function(t,e,i,n){return[i[0]+n[0]-t[0]-e[0],i[1]+n[1]-t[1]-e[1],i[2]+n[2]-t[2]-e[2]]}(n,r,s,a),function(t,e,i,n){return[3*t[0]-5*e[0]+i[0]+n[0],3*t[1]-5*e[1]+i[1]+n[1],3*t[2]-5*e[2]+i[2]+n[2]]}(n,r,s,a)),v=this.data.vertex(m,p);this.Render(f,e,v),this.Render(u,v,i)}}normal(t,e){let i=Bt(t,t),n=Bt(t,e);return[i*e[0]-n*t[0],i*e[1]-n*t[1],i*e[2]-n*t[2]]}}class bt extends pt{constructor(t,e,i){super(),this.controlpoint=t,this.width=e,this.CenterIndex=0,this.MaterialIndex=i,this.Min=t,this.Max=t}setMaterialIndex(){this.setMaterial(K,ye)}process(t){this.data.indices.push(this.data.vertex0(this.controlpoint,this.width)),this.append()}append(){K.append(this.data)}notRendered(){K.rendered=!1}}class Tt extends pt{constructor(t,e){super(),this.CenterIndex=t,this.MaterialIndex=e,this.controlpoints=window.Positions,this.Normals=window.Normals,this.Colors=window.Colors,this.Indices=window.Indices,this.transparent=c[this.MaterialIndex].diffuse[3]<1,this.Min=this.Bounds(this.controlpoints,Math.min),this.Max=this.Bounds(this.controlpoints,Math.max)}Bounds(t,e){let i=Array(3),n=t.length,r=Array(n);for(let s=0;s<3;++s){for(let e=0;e<n;++e)r[e]=t[e][s];i[s]=vt(r,e)}return[i[0],i[1],i[2]]}setMaterialIndex(){this.transparent?this.setMaterial(tt,Ne):this.setMaterial(et,Le)}process(t){this.data.vertices=new Array(6*t.length),it=this.Colors.length>0?-1-it:1+it;for(let e=0,i=this.Indices.length;e<i;++e){let i=this.Indices[e],n=i[0],r=t[n[0]],s=t[n[1]],a=t[n[2]],o=!this.offscreen([r,s,a]),h=i.length>1?i[1]:n;if(h&&0!=h.length||(h=n),this.Colors.length>0){let t=i.length>2?i[2]:n;t&&0!=t.length||(t=n);let e=this.Colors[t[0]],l=this.Colors[t[1]],c=this.Colors[t[2]];this.transparent|=e[3]+l[3]+c[3]<3,0==V?(this.data.iVertex(n[0],r,this.Normals[h[0]],o,e),this.data.iVertex(n[1],s,this.Normals[h[1]],o,l),this.data.iVertex(n[2],a,this.Normals[h[2]],o,c)):(this.data.iVertex(n[0],r,this.Normals[h[0]],o,e),this.data.iVertex(n[1],s,this.Normals[h[1]],o,l),this.data.iVertex(n[1],s,this.Normals[h[1]],o,l),this.data.iVertex(n[2],a,this.Normals[h[2]],o,c),this.data.iVertex(n[2],a,this.Normals[h[2]],o,c),this.data.iVertex(n[0],r,this.Normals[h[0]],o,e))}else 0==V?(this.data.iVertex(n[0],r,this.Normals[h[0]],o),this.data.iVertex(n[1],s,this.Normals[h[1]],o),this.data.iVertex(n[2],a,this.Normals[h[2]],o)):(this.data.iVertex(n[0],r,this.Normals[h[0]],o),this.data.iVertex(n[1],s,this.Normals[h[1]],o),this.data.iVertex(n[1],s,this.Normals[h[1]],o),this.data.iVertex(n[2],a,this.Normals[h[2]],o),this.data.iVertex(n[2],a,this.Normals[h[2]],o),this.data.iVertex(n[0],r,this.Normals[h[0]],o))}this.data.nvertices=t.length,this.data.indices.length>0&&this.append()}append(){this.transparent?tt.append(this.data):et.append(this.data)}notRendered(){this.transparent?tt.rendered=!1:et.rendered=!1}}function Rt(){M=-Math.tan(.5*o.angleOfView)*o.maxBound[2],O.x=O.y=0,O.z=.5*(o.minBound[2]+o.maxBound[2]),x=v=o.zoom0,S.zmin=o.minBound[2],S.zmax=o.maxBound[2],P.x=P.y=0,Pe(),U=!0,Oe()}function yt(){mat4.identity(R),Rt(),window.top.asyWebApplication&&window.top.asyWebApplication.setProjection(""),window.parent.asyProjection=!1}let At=0,Et=1,It=2,Lt=3,Nt=4;function _t(e=[]){let i=ct(t,vertex,t.VERTEX_SHADER,e),n=ct(t,fragment,t.FRAGMENT_SHADER,e),r=t.createProgram();return t.attachShader(r,i),t.attachShader(r,n),t.bindAttribLocation(r,At,"position"),t.bindAttribLocation(r,Et,"normal"),t.bindAttribLocation(r,It,"materialIndex"),t.bindAttribLocation(r,Lt,"color"),t.bindAttribLocation(r,Nt,"width"),t.linkProgram(r),t.getProgramParameter(r,t.LINK_STATUS)||alert("Could not initialize shaders"),r}class Ot{constructor(t,e,i,n){this.m0=.5*(t+e);let r=.5*(e+i);this.m2=.5*(i+n),this.m3=.5*(this.m0+r),this.m4=.5*(r+this.m2),this.m5=.5*(this.m3+this.m4)}}class Pt{constructor(t,e,i,n){this.m0=[.5*(t[0]+e[0]),.5*(t[1]+e[1]),.5*(t[2]+e[2])];let r=.5*(e[0]+i[0]),s=.5*(e[1]+i[1]),a=.5*(e[2]+i[2]);this.m2=[.5*(i[0]+n[0]),.5*(i[1]+n[1]),.5*(i[2]+n[2])],this.m3=[.5*(this.m0[0]+r),.5*(this.m0[1]+s),.5*(this.m0[2]+a)],this.m4=[.5*(r+this.m2[0]),.5*(s+this.m2[1]),.5*(a+this.m2[2])],this.m5=[.5*(this.m3[0]+this.m4[0]),.5*(this.m3[1]+this.m4[1]),.5*(this.m3[2]+this.m4[2])]}}class St{constructor(t){this.l003=t[0];let e=t[1],i=t[2],n=t[3],r=t[4],s=t[5];this.r300=t[6];let a=t[7],o=t[8];this.u030=t[9],this.u021=.5*(this.u030+s),this.u120=.5*(this.u030+o);let h=.5*(s+i),l=.5*(o+r),c=.5*(o+a),d=.5*(i+r);this.l012=.5*(i+this.l003);let m=.5*(r+n);this.r210=.5*(a+this.r300),this.l102=.5*(this.l003+e);let f=.5*(e+n);this.r201=.5*(n+this.r300),this.u012=.5*(this.u021+h),this.u210=.5*(this.u120+c),this.l021=.5*(h+this.l012);let u=.5*l+.25*(r+e);this.r120=.5*(c+this.r210);let p=.5*d+.25*(r+a),v=.25*(s+r)+.5*m;this.l201=.5*(this.l102+f),this.r102=.5*(f+this.r201),this.l210=.5*(p+this.l201),this.r012=.5*(p+this.r102),this.l300=.5*(this.l201+this.r102),this.r021=.5*(v+this.r120),this.u201=.5*(this.u210+v),this.r030=.5*(this.u210+this.r120),this.u102=.5*(this.u012+u),this.l120=.5*(this.l021+u),this.l030=.5*(this.u012+this.l021),this.l111=.5*(d+this.l102),this.r111=.5*(m+this.r210),this.u111=.5*(this.u021+l),this.c111=.25*(h+c+f+r)}}function Ut(t){let e=1/(Math.sqrt(t[0]*t[0]+t[1]*t[1]+t[2]*t[2])||1);return[t[0]*e,t[1]*e,t[2]*e]}function Vt(t){return t[0]*t[0]+t[1]*t[1]+t[2]*t[2]}function Bt(t,e){return t[0]*e[0]+t[1]*e[1]+t[2]*e[2]}function Dt(t,e){return[t[1]*e[2]-t[2]*e[1],t[2]*e[0]-t[0]*e[2],t[0]*e[1]-t[1]*e[0]]}function Ct(t,e,i,n,r){let s=1-r,a=s*s;return a*s*t+r*(3*(a*e+r*s*i)+r*r*n)}function Ft(t,e){return[e[0]-t[0],e[1]-t[1],e[2]-t[2]]}function zt(t,e,i){return[3*(t[0]+i[0])-6*e[0],3*(t[1]+i[1])-6*e[1],3*(t[2]+i[2])-6*e[2]]}function 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