twgl-full.min.js

/**
 * @license twgl.js 1.9.0 Copyright (c) 2015, Gregg Tavares All Rights Reserved.
 * Available via the MIT license.
 * see: http://github.com/greggman/twgl.js for details
 */
/**
 * @license almond 0.3.1 Copyright (c) 2011-2014, The Dojo Foundation All Rights Reserved.
 * Available via the MIT or new BSD license.
 * see: http://github.com/jrburke/almond for details
 */
!function(a,b){"function"==typeof define&&define.amd&&define([],b),"undefined"!=typeof module&&module.exports?module.exports=b():a.twgl=b()}(this,function(){var a,b,c;return function(d){function e(a,b){return u.call(a,b)}function f(a,b){var c,d,e,f,g,h,i,j,k,l,m,n=b&&b.split("/"),o=s.map,p=o&&o["*"]||{};if(a&&"."===a.charAt(0))if(b){for(a=a.split("/"),g=a.length-1,s.nodeIdCompat&&w.test(a[g])&&(a[g]=a[g].replace(w,"")),a=n.slice(0,n.length-1).concat(a),k=0;k<a.length;k+=1)if(m=a[k],"."===m)a.splice(k,1),k-=1;else if(".."===m){if(1===k&&(".."===a[2]||".."===a[0]))break;k>0&&(a.splice(k-1,2),k-=2)}a=a.join("/")}else 0===a.indexOf("./")&&(a=a.substring(2));if((n||p)&&o){for(c=a.split("/"),k=c.length;k>0;k-=1){if(d=c.slice(0,k).join("/"),n)for(l=n.length;l>0;l-=1)if(e=o[n.slice(0,l).join("/")],e&&(e=e[d])){f=e,h=k;break}if(f)break;!i&&p&&p[d]&&(i=p[d],j=k)}!f&&i&&(f=i,h=j),f&&(c.splice(0,h,f),a=c.join("/"))}return a}function g(a,b){return function(){var c=v.call(arguments,0);return"string"!=typeof c[0]&&1===c.length&&c.push(null),n.apply(d,c.concat([a,b]))}}function h(a){return function(b){return f(b,a)}}function i(a){return function(b){q[a]=b}}function j(a){if(e(r,a)){var b=r[a];delete r[a],t[a]=!0,m.apply(d,b)}if(!e(q,a)&&!e(t,a))throw new Error("No "+a);return q[a]}function k(a){var b,c=a?a.indexOf("!"):-1;return c>-1&&(b=a.substring(0,c),a=a.substring(c+1,a.length)),[b,a]}function l(a){return function(){return s&&s.config&&s.config[a]||{}}}var m,n,o,p,q={},r={},s={},t={},u=Object.prototype.hasOwnProperty,v=[].slice,w=/\.js$/;o=function(a,b){var c,d=k(a),e=d[0];return a=d[1],e&&(e=f(e,b),c=j(e)),e?a=c&&c.normalize?c.normalize(a,h(b)):f(a,b):(a=f(a,b),d=k(a),e=d[0],a=d[1],e&&(c=j(e))),{f:e?e+"!"+a:a,n:a,pr:e,p:c}},p={notrequirebecasebrowserifymessesup:function(a){return g(a)},exports:function(a){var b=q[a];return"undefined"!=typeof b?b:q[a]={}},module:function(a){return{id:a,uri:"",exports:q[a],config:l(a)}}},m=function(a,b,c,f){var h,k,l,m,n,s,u=[],v=typeof c;if(f=f||a,"undefined"===v||"function"===v){for(b=!b.length&&c.length?["notrequirebecasebrowserifymessesup","exports","module"]:b,n=0;n<b.length;n+=1)if(m=o(b[n],f),k=m.f,"notrequirebecasebrowserifymessesup"===k)u[n]=p.notrequirebecasebrowserifymessesup(a);else if("exports"===k)u[n]=p.exports(a),s=!0;else if("module"===k)h=u[n]=p.module(a);else if(e(q,k)||e(r,k)||e(t,k))u[n]=j(k);else{if(!m.p)throw new Error(a+" missing "+k);m.p.load(m.n,g(f,!0),i(k),{}),u[n]=q[k]}l=c?c.apply(q[a],u):void 0,a&&(h&&h.exports!==d&&h.exports!==q[a]?q[a]=h.exports:l===d&&s||(q[a]=l))}else a&&(q[a]=c)},a=b=n=function(a,b,c,e,f){if("string"==typeof a)return p[a]?p[a](b):j(o(a,b).f);if(!a.splice){if(s=a,s.deps&&n(s.deps,s.callback),!b)return;b.splice?(a=b,b=c,c=null):a=d}return b=b||function(){},"function"==typeof c&&(c=e,e=f),e?m(d,a,b,c):setTimeout(function(){m(d,a,b,c)},4),n},n.config=function(a){return n(a)},a._defined=q,c=function(a,b,c){if("string"!=typeof a)throw new Error("See almond README: incorrect module build, no module name");b.splice||(c=b,b=[]),e(q,a)||e(r,a)||(r[a]=[a,b,c])},c.amd={jQuery:!0}}(),c("node_modules/almond/almond.js",function(){}),c("twgl/typedarrays",[],function(){function a(a){if(a instanceof Int8Array)return d;if(a instanceof Uint8Array)return e;if(a instanceof Uint8ClampedArray)return e;if(a instanceof Int16Array)return f;if(a instanceof Uint16Array)return g;if(a instanceof Int32Array)return h;if(a instanceof Uint32Array)return i;if(a instanceof Float32Array)return j;throw"unsupported typed array type"}function b(a){switch(a){case d:return Int8Array;case e:return Uint8Array;case f:return Int16Array;case g:return Uint16Array;case h:return Int32Array;case i:return Uint32Array;case j:return Float32Array;default:throw"unknown gl type"}}function c(a){return a&&a.buffer&&a.buffer instanceof ArrayBuffer}var d=5120,e=5121,f=5122,g=5123,h=5124,i=5125,j=5126;return{getGLTypeForTypedArray:a,getTypedArrayTypeForGLType:b,isArrayBuffer:c}}),c("twgl/utils",[],function(){function a(a){var b={};return Object.keys(a).forEach(function(c){b[c]=a[c]}),b}function b(a,b,c){a.forEach(function(a){var d=b[a];void 0!==d&&(c[a]=d)})}function c(a,b){Object.keys(b).forEach(function(c){b.hasOwnProperty(c)&&a.hasOwnProperty(c)&&(b[c]=a[c])})}function d(a){return parseFloat(a.getParameter(a.VERSION).substr(6))}function e(a){return 0===a.getParameter(a.VERSION).indexOf("WebGL 2.0")}function f(a){var b=d(a);return b<=1&&b>0}var g=window.console&&window.console.error&&"function"==typeof window.console.error?window.console.error.bind(window.console):function(){},h=window.console&&window.console.warn&&"function"==typeof window.console.warn?window.console.warn.bind(window.console):function(){};return{copyExistingProperties:c,copyNamedProperties:b,shallowCopy:a,isWebGL1:f,isWebGL2:e,error:g,warn:h}}),c("twgl/attributes",["./typedarrays","./utils"],function(a,b){function c(a){s.attribPrefix=a}function d(a){b.copyExistingProperties(a,s)}function e(a,b,c,d,e){a.bindBuffer(b,c),a.bufferData(b,d,e||a.STATIC_DRAW)}function f(a,b,c,d){if(b instanceof WebGLBuffer)return b;c=c||a.ARRAY_BUFFER;var f=a.createBuffer();return e(a,c,f,b,d),f}function g(a){return"indices"===a}function h(a){return a instanceof Int8Array||a instanceof Uint8Array}function i(a){return a.length?a:a.data}function j(a,b){var c;if(c=a.indexOf("coord")>=0?2:a.indexOf("color")>=0?4:3,b%c>0)throw"can not guess numComponents. You should specify it.";return c}function k(a,b){return a.numComponents||a.size||j(b,i(a).length)}function l(b,c){if(a.isArrayBuffer(b))return b;if(a.isArrayBuffer(b.data))return b.data;Array.isArray(b)&&(b={data:b});var d=b.type;return d||(d="indices"===c?Uint16Array:Float32Array),new d(b.data)}function m(b,c){var d={};return Object.keys(c).forEach(function(e){if(!g(e)){var i=c[e],j=i.attrib||i.name||i.attribName||s.attribPrefix+e,m=l(i,e);d[j]={buffer:f(b,m,void 0,i.drawType),numComponents:k(i,e),type:a.getGLTypeForTypedArray(m),normalize:void 0!==i.normalize?i.normalize:h(m),stride:i.stride||0,offset:i.offset||0,drawType:i.drawType}}}),d}function n(a,b,c,d){c=l(c),d?(a.bindBuffer(a.ARRAY_BUFFER,b.buffer),a.bufferSubData(a.ARRAY_BUFFER,d,c)):e(a,a.ARRAY_BUFFER,b.buffer,c,b.drawType)}function o(b,c){var d={attribs:m(b,c)},e=c.indices;return e?(e=l(e,"indices"),d.indices=f(b,e,b.ELEMENT_ARRAY_BUFFER),d.numElements=e.length,d.elementType=a.getGLTypeForTypedArray(e)):d.numElements=t(c),d}function p(a,b,c){var d="indices"===c?a.ELEMENT_ARRAY_BUFFER:a.ARRAY_BUFFER,e=l(b,c);return f(a,e,d)}function q(a,b){var c={};return Object.keys(b).forEach(function(d){c[d]=p(a,b[d],d)}),c}function r(a,b,c){var d=a.createVertexArray();return a.bindVertexArray(d),b.length||(b=[b]),b.forEach(function(b){twgl.setBuffersAndAttributes(a,b,c)}),a.bindVertexArray(null),{numElements:c.numElements,elementType:c.elementType,vertexArrayObject:d}}var s={attribPrefix:""},t=function(){var a=["position","positions","a_position"];return function(b){for(var c,d=0;d<a.length&&(c=a[d],!(c in b));++d);d===a.length&&(c=Object.keys(b)[0]);var e=b[c],f=i(e).length,g=k(e,c),h=f/g;if(f%g>0)throw"numComponents "+g+" not correct for length "+f;return h}}();return{createAttribsFromArrays:m,createBuffersFromArrays:q,createBufferFromArray:p,createBufferFromTypedArray:f,createBufferInfoFromArrays:o,setAttribInfoBufferFromArray:n,createVertexArrayInfo:r,setAttributePrefix:c,setDefaults_:d,getNumComponents_:k,getArray_:i}}),c("twgl/programs",["./utils"],function(a){function b(a,b){return Na[b].bindPoint}function c(a,b){return function(c){a.uniform1f(b,c)}}function d(a,b){return function(c){a.uniform1fv(b,c)}}function e(a,b){return function(c){a.uniform2fv(b,c)}}function f(a,b){return function(c){a.uniform3fv(b,c)}}function g(a,b){return function(c){a.uniform4fv(b,c)}}function h(a,b){return function(c){a.uniform1i(b,c)}}function i(a,b){return function(c){a.uniform1iv(b,c)}}function j(a,b){return function(c){a.uniform2iv(b,c)}}function k(a,b){return function(c){a.uniform3iv(b,c)}}function l(a,b){return function(c){a.uniform4iv(b,c)}}function m(a,b){return function(c){a.uniform1ui(b,c)}}function n(a,b){return function(c){a.uniform1uiv(b,c)}}function o(a,b){return function(c){a.uniform2uiv(b,c)}}function p(a,b){return function(c){a.uniform3uiv(b,c)}}function q(a,b){return function(c){a.uniform4uiv(b,c)}}function r(a,b){return function(c){a.uniformMatrix2fv(b,!1,c)}}function s(a,b){return function(c){a.uniformMatrix3fv(b,!1,c)}}function t(a,b){return function(c){a.uniformMatrix4fv(b,!1,c)}}function u(a,b){return function(c){a.uniformMatrix2x3fv(b,!1,c)}}function v(a,b){return function(c){a.uniformMatrix3x2fv(b,!1,c)}}function w(a,b){return function(c){a.uniformMatrix2x4fv(b,!1,c)}}function x(a,b){return function(c){a.uniformMatrix4x2fv(b,!1,c)}}function y(a,b){return function(c){a.uniformMatrix3x4fv(b,!1,c)}}function z(a,b){return function(c){a.uniformMatrix4x3fv(b,!1,c)}}function A(a,c,d,e){var f=b(a,c);return function(b){a.uniform1i(e,d),a.activeTexture(a.TEXTURE0+d),a.bindTexture(f,b)}}function B(a,c,d,e,f){for(var g=b(a,c),h=new Int32Array(f),i=0;i<f;++i)h[i]=d+i;return function(b){a.uniform1iv(e,h),b.forEach(function(b,c){a.activeTexture(a.TEXTURE0+h[c]),a.bindTexture(g,b)})}}function C(a,b){return b=b||0,++b,a.split("\n").map(function(a,c){return c+b+": "+a}).join("\n")}function D(a,b,c,d){var e=d||V,f=a.createShader(c),g=0;Pa.test(b)&&(g=1,b=b.replace(Pa,"")),a.shaderSource(f,b),a.compileShader(f);var h=a.getShaderParameter(f,a.COMPILE_STATUS);if(!h){var i=a.getShaderInfoLog(f);return e(C(b,g)+"\n*** Error compiling shader: "+i),a.deleteShader(f),null}return f}function E(a,b,c,d,e){"function"==typeof d&&(e=d,d=void 0),"function"==typeof c&&(e=c,c=void 0);var f=e||V,g=a.createProgram();b.forEach(function(b){a.attachShader(g,b)}),c&&c.forEach(function(b,c){a.bindAttribLocation(g,d?d[c]:c,b)}),a.linkProgram(g);var h=a.getProgramParameter(g,a.LINK_STATUS);if(!h){var i=a.getProgramInfoLog(g);return f("Error in program linking:"+i),a.deleteProgram(g),null}return g}function F(a,b,c,d){var e,f="",g=document.getElementById(b);if(!g)throw"*** Error: unknown script element"+b;if(f=g.text,!c)if("x-shader/x-vertex"===g.type)e=a.VERTEX_SHADER;else if("x-shader/x-fragment"===g.type)e=a.FRAGMENT_SHADER;else if(e!==a.VERTEX_SHADER&&e!==a.FRAGMENT_SHADER)throw"*** Error: unknown shader type";return D(a,f,c?c:e,d)}function G(a,b,c,d,e){for(var f=[],g=0;g<b.length;++g){var h=F(a,b[g],a[Qa[g]],e);if(!h)return null;f.push(h)}return E(a,f,c,d,e)}function H(a,b,c,d,e){for(var f=[],g=0;g<b.length;++g){var h=D(a,b[g],a[Qa[g]],e);if(!h)return null;f.push(h)}return E(a,f,c,d,e)}function I(a,b){function c(b,c){var e=a.getUniformLocation(b,c.name),f=c.size>1&&"[0]"===c.name.substr(-3),g=c.type,h=Na[g];if(!h)throw"unknown type: 0x"+g.toString(16);if(h.bindPoint){var i=d;return d+=c.size,f?h.arraySetter(a,g,i,e,c.size):h.setter(a,g,i,e,c.size)}return h.arraySetter&&f?h.arraySetter(a,e):h.setter(a,e)}for(var d=0,e={},f=a.getProgramParameter(b,a.ACTIVE_UNIFORMS),g=0;g<f;++g){var h=a.getActiveUniform(b,g);if(!h)break;var i=h.name;"[0]"===i.substr(-3)&&(i=i.substr(0,i.length-3));var j=c(b,h);e[i]=j}return e}function J(a,b){for(var c=a.getProgramParameter(b,a.ACTIVE_UNIFORMS),d=[],e=[],f=0;f<c;++f){e.push(f),d.push({});var g=a.getActiveUniform(b,f);if(!g)break;d[f].name=g.name}[["UNIFORM_TYPE","type"],["UNIFORM_SIZE","size"],["UNIFORM_BLOCK_INDEX","blockNdx"],["UNIFORM_OFFSET","offset"]].forEach(function(c){var f=c[0],g=c[1];a.getActiveUniforms(b,e,a[f]).forEach(function(a,b){d[b][g]=a})});var h={},i=a.getProgramParameter(b,a.ACTIVE_UNIFORM_BLOCKS);for(f=0;f<i;++f){var j=a.getActiveUniformBlockName(b,f),k={index:f,usedByVertexShader:a.getActiveUniformBlockParameter(b,f,a.UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER),usedByFragmentShader:a.getActiveUniformBlockParameter(b,f,a.UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER),size:a.getActiveUniformBlockParameter(b,f,a.UNIFORM_BLOCK_DATA_SIZE),uniformIndices:a.getActiveUniformBlockParameter(b,f,a.UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES)};k.used=k.usedByVertexSahder||k.usedByFragmentShader,h[j]=k}return{blockSpecs:h,uniformData:d}}function K(a,b,c,d){var e=c.blockSpecs,f=c.uniformData,g=e[d];if(!g)return W("no uniform block object named:",d),{name:d,uniforms:{}};var h=new ArrayBuffer(g.size),i=a.createBuffer(),j=g.index;a.bindBuffer(a.UNIFORM_BUFFER,i),a.uniformBlockBinding(b,g.index,j);var k=d+".";Ra.test(k)&&(k=k.replace(Ra,"."));var l={};return g.uniformIndices.forEach(function(a){var b=f[a],c=Na[b.type],d=c.Type,e=b.size*c.size,g=b.name;g.substr(0,k.length)===k&&(g=g.substr(k.length)),l[g]=new d(h,b.offset,e/d.BYTES_PER_ELEMENT)}),{name:d,array:h,asFloat:new Float32Array(h),buffer:i,uniforms:l}}function L(a,b,c){return K(a,b.program,b.uniformBlockSpec,c)}function M(a,b,c){var d=b.uniformBlockSpec||b,e=d.blockSpecs[c.name];if(e){var f=e.index;return a.bindBufferRange(a.UNIFORM_BUFFER,f,c.buffer,c.offset||0,c.array.byteLength),!0}return!1}function N(a,b,c){M(a,b,c)&&a.bufferData(a.UNIFORM_BUFFER,c.array,a.DYNAMIC_DRAW)}function O(a,b){var c=a.uniforms;for(var d in b){var e=c[d];if(e){var f=b[d];f.length?e.set(f):e[0]=f}}}function P(a,b){for(var c=a.uniformSetters||a,d=arguments.length,e=1;e<d;++e){var f=arguments[e];if(Array.isArray(f))for(var g=f.length,h=0;h<g;++h)P(c,f[h]);else for(var i in f){var j=c[i];j&&j(f[i])}}}function Q(a,b){function c(b){return function(c){a.bindBuffer(a.ARRAY_BUFFER,c.buffer),a.enableVertexAttribArray(b),a.vertexAttribPointer(b,c.numComponents||c.size,c.type||a.FLOAT,c.normalize||!1,c.stride||0,c.offset||0)}}function d(b,c){var d=c.size,e=c.count;return function(c){a.bindBuffer(a.ARRAY_BUFFER,c.buffer);for(var f=c.size||c.numComponents||d,g=f/e,h=c.type||a.FLOAT,i=Na[h],j=i.size*f,k=c.normalize||!1,l=c.offset||0,m=j/e,n=0;n<e;++n)a.enableVertexAttribArray(b+n),a.vertexAttribPointer(b+n,g,h,k,j,l+m*n)}}for(var e={},f=a.getProgramParameter(b,a.ACTIVE_ATTRIBUTES),g=0;g<f;++g){var h=a.getActiveAttrib(b,g);if(!h)break;var i=a.getAttribLocation(b,h.name),j=Oa[h.type];j?e[h.name]=d(i,j):e[h.name]=c(i)}return e}function R(a,b){for(var c in b){var d=a[c];d&&d(b[c])}}function S(a,b,c){c.vertexArrayObject?a.bindVertexArray(c.vertexArrayObject):(R(b.attribSetters||b,c.attribs),c.indices&&a.bindBuffer(a.ELEMENT_ARRAY_BUFFER,c.indices))}function T(b,c){var d=I(b,c),e=Q(b,c),f={program:c,uniformSetters:d,attribSetters:e};return a.isWebGL2(b)&&(f.uniformBlockSpec=J(b,c)),f}function U(a,b,c,d,e){"function"==typeof d&&(e=d,d=void 0),"function"==typeof c&&(e=c,c=void 0);var f=e||V,g=!0;if(b=b.map(function(a){if(a.indexOf("\n")<0){var b=document.getElementById(a);b?a=b.text:(f("no element with id: "+a),g=!1)}return a}),!g)return null;var h=H(a,b,c,d,e);return h?T(a,h):null}var V=a.error,W=a.warn,X=5126,Y=35664,Z=35665,$=35666,_=5124,aa=35667,ba=35668,ca=35669,da=35670,ea=35671,fa=35672,ga=35673,ha=35674,ia=35675,ja=35676,ka=35678,la=35680,ma=35679,na=35682,oa=35685,pa=35686,qa=35687,ra=35688,sa=35689,ta=35690,ua=36289,va=36292,wa=36293,xa=5125,ya=36294,za=36295,Aa=36296,Ba=36298,Ca=36299,Da=36300,Ea=36303,Fa=36306,Ga=36307,Ha=36308,Ia=36311,Ja=3553,Ka=34067,La=32879,Ma=35866,Na={};Na[X]={Type:Float32Array,size:4,setter:c,arraySetter:d},Na[Y]={Type:Float32Array,size:8,setter:e},Na[Z]={Type:Float32Array,size:12,setter:f},Na[$]={Type:Float32Array,size:16,setter:g},Na[_]={Type:Int32Array,size:4,setter:h,arraySetter:i},Na[aa]={Type:Int32Array,size:8,setter:j},Na[ba]={Type:Int32Array,size:12,setter:k},Na[ca]={Type:Int32Array,size:16,setter:l},Na[xa]={Type:Uint32Array,size:4,setter:m,arraySetter:n},Na[ya]={Type:Uint32Array,size:8,setter:o},Na[za]={Type:Uint32Array,size:12,setter:p},Na[Aa]={Type:Uint32Array,size:16,setter:q},Na[da]={Type:Uint32Array,size:4,setter:h,arraySetter:i},Na[ea]={Type:Uint32Array,size:8,setter:j},Na[fa]={Type:Uint32Array,size:12,setter:k},Na[ga]={Type:Uint32Array,size:16,setter:l},Na[ha]={Type:Float32Array,size:16,setter:r},Na[ia]={Type:Float32Array,size:36,setter:s},Na[ja]={Type:Float32Array,size:64,setter:t},Na[oa]={Type:Float32Array,size:24,setter:u},Na[pa]={Type:Float32Array,size:32,setter:w},Na[qa]={Type:Float32Array,size:24,setter:v},Na[ra]={Type:Float32Array,size:48,setter:y},Na[sa]={Type:Float32Array,size:32,setter:x},Na[ta]={Type:Float32Array,size:48,setter:z},Na[ka]={Type:null,size:0,setter:A,arraySetter:B,bindPoint:Ja},Na[la]={Type:null,size:0,setter:A,arraySetter:B,bindPoint:Ka},Na[ma]={Type:null,size:0,setter:A,arraySetter:B,bindPoint:La},Na[na]={Type:null,size:0,setter:A,arraySetter:B,bindPoint:Ja},Na[ua]={Type:null,size:0,setter:A,arraySetter:B,bindPoint:Ma},Na[va]={Type:null,size:0,setter:A,arraySetter:B,bindPoint:Ma},Na[wa]={Type:null,size:0,setter:A,arraySetter:B,bindPoint:Ka},Na[Ba]={Type:null,size:0,setter:A,arraySetter:B,bindPoint:Ja},Na[Ca]={Type:null,size:0,setter:A,arraySetter:B,bindPoint:La},Na[Da]={Type:null,size:0,setter:A,arraySetter:B,bindPoint:Ka},Na[Ea]={Type:null,size:0,setter:A,arraySetter:B,bindPoint:Ma},Na[Fa]={Type:null,size:0,setter:A,arraySetter:B,bindPoint:Ja},Na[Ga]={Type:null,size:0,setter:A,arraySetter:B,bindPoint:La},Na[Ha]={Type:null,size:0,setter:A,arraySetter:B,bindPoint:Ka},Na[Ia]={Type:null,size:0,setter:A,arraySetter:B,bindPoint:Ma};var Oa={};Oa[ha]={size:4,count:2},Oa[ia]={size:9,count:3},Oa[ja]={size:16,count:4};var Pa=/^[ \t]*\n/,Qa=["VERTEX_SHADER","FRAGMENT_SHADER"],Ra=/\[\d+\]\.$/;return{createAttributeSetters:Q,createProgram:E,createProgramFromScripts:G,createProgramFromSources:H,createProgramInfo:U,createProgramInfoFromProgram:T,createUniformSetters:I,createUniformBlockSpecFromProgram:J,createUniformBlockInfoFromProgram:K,createUniformBlockInfo:L,setAttributes:R,setBuffersAndAttributes:S,setUniforms:P,setUniformBlock:N,setBlockUniforms:O,bindUniformBlock:M}}),c("twgl/draw",["./programs"],function(a){function b(a,b,c,d,e){var f=c.indices,g=c.elementType,h=void 0===d?c.numElements:d;e=void 0===e?0:e,g||f?a.drawElements(b,h,void 0===g?a.UNSIGNED_SHORT:c.elementType,e):a.drawArrays(b,e,h)}function c(c,d){var e=null,f=null;d.forEach(function(d){if(d.active!==!1){var g=d.programInfo,h=d.vertexArrayInfo||d.bufferInfo,i=!1,j=void 0===d.type?c.TRIANGLES:d.type;g!==e&&(e=g,c.useProgram(g.program),i=!0),(i||h!==f)&&(f&&f.vertexArrayObject&&!h.vertexArrayObject&&c.bindVertexArray(null),f=h,a.setBuffersAndAttributes(c,g,h)),a.setUniforms(g,d.uniforms),b(c,j,h,d.count,d.offset)}}),f.vertexArrayObject&&c.bindVertexArray(null)}return{drawBufferInfo:b,drawObjectList:c}}),c("twgl/textures",["./typedarrays","./utils"],function(a,b){function c(a){A.textureColor=new Uint8Array([255*a[0],255*a[1],255*a[2],255*a[3]])}function d(a){b.copyExistingProperties(a,A),a.textureColor&&c(a.textureColor)}function e(a,b){void 0!==b.colorspaceConversion&&(I.colorspaceConversion=a.getParameter(a.UNPACK_COLORSPACE_CONVERSION_WEBGL),a.pixelStorei(a.UNPACK_COLORSPACE_CONVERSION_WEBGL,b.colorspaceConversion)),void 0!==b.premultiplyAlpha&&(I.premultiplyAlpha=a.getParameter(a.UNPACK_PREMULTIPLY_ALPHA_WEBGL),a.pixelStorei(a.UNPACK_PREMULTIPLY_ALPHA_WEBGL,b.premultiplyAlpha)),void 0!==b.flipY&&(I.flipY=a.getParameter(a.UNPACK_FLIP_Y_WEBGL),a.pixelStorei(a.UNPACK_FLIP_Y_WEBGL,b.flipY))}function f(a,b){void 0!==b.colorspaceConversion&&a.pixelStorei(a.UNPACK_COLORSPACE_CONVERSION_WEBGL,I.colorspaceConversion),void 0!==b.premultiplyAlpha&&a.pixelStorei(a.UNPACK_PREMULTIPLY_ALPHA_WEBGL,I.premultiplyAlpha),void 0!==b.flipY&&a.pixelStorei(a.UNPACK_FLIP_Y_WEBGL,I.flipY)}function g(a,b,c){var d=c.target||a.TEXTURE_2D;a.bindTexture(d,b),c.min&&a.texParameteri(d,a.TEXTURE_MIN_FILTER,c.min),c.mag&&a.texParameteri(d,a.TEXTURE_MAG_FILTER,c.mag),c.wrap&&(a.texParameteri(d,a.TEXTURE_WRAP_S,c.wrap),a.texParameteri(d,a.TEXTURE_WRAP_T,c.wrap),d===a.TEXTURE_3D&&a.texParameteri(d,a.TEXTURE_WRAP_R,c.wrap)),c.wrapR&&a.texParameteri(d,a.TEXTURE_WRAP_R,c.wrapR),c.wrapS&&a.texParameteri(d,a.TEXTURE_WRAP_S,c.wrapS),c.wrapT&&a.texParameteri(d,a.TEXTURE_WRAP_T,c.wrapT),c.minLod&&a.texParameteri(d,a.TEXTURE_MIN_LOD,c.minLod),c.maxLod&&a.texParameteri(d,a.TEXTURE_MAX_LOD,c.maxLod),c.baseLevel&&a.texParameteri(d,a.TEXTURE_BASE_LEVEL,c.baseLevel),c.maxLevel&&a.texParameteri(d,a.TEXTURE_MAX_LEVEL,c.maxLevel)}function h(a){return a=a||A.textureColor,B(a)?a:new Uint8Array([255*a[0],255*a[1],255*a[2],255*a[3]])}function i(a){return 0===(a&a-1)}function j(a,b,c,d,e){c=c||A.textureOptions;var f=c.target||a.TEXTURE_2D;d=d||c.width,e=e||c.height,a.bindTexture(f,b),i(d)&&i(e)?a.generateMipmap(f):(a.texParameteri(f,a.TEXTURE_MIN_FILTER,a.LINEAR),a.texParameteri(f,a.TEXTURE_WRAP_S,a.CLAMP_TO_EDGE),a.texParameteri(f,a.TEXTURE_WRAP_T,a.CLAMP_TO_EDGE))}function k(a,b){return b=b||{},b.cubeFaceOrder||[a.TEXTURE_CUBE_MAP_POSITIVE_X,a.TEXTURE_CUBE_MAP_NEGATIVE_X,a.TEXTURE_CUBE_MAP_POSITIVE_Y,a.TEXTURE_CUBE_MAP_NEGATIVE_Y,a.TEXTURE_CUBE_MAP_POSITIVE_Z,a.TEXTURE_CUBE_MAP_NEGATIVE_Z]}function l(a,b){var c=k(a,b),d=c.map(function(a,b){return{face:a,ndx:b}});return d.sort(function(a,b){return a.face-b.face}),d}function m(){}function n(a,c,d){function e(){h.removeEventListener("error",f),h.removeEventListener("load",g),h=null}function f(){var c="couldn't load image: "+a;b.error(c),d(c,h),e()}function g(){d(null,h),e()}d=d||m;var h=new Image;return c=void 0!==c?c:A.crossOrigin,void 0!==c&&(h.crossOrigin=c),h.addEventListener("error",f),h.addEventListener("load",g),h.src=a,h}function o(a,b,c){c=c||A.textureOptions;var d=c.target||a.TEXTURE_2D;if(a.bindTexture(d,b),c.color!==!1){var e=h(c.color);if(d===a.TEXTURE_CUBE_MAP)for(var f=0;f<6;++f)a.texImage2D(a.TEXTURE_CUBE_MAP_POSITIVE_X+f,0,a.RGBA,1,1,0,a.RGBA,a.UNSIGNED_BYTE,e);else d===a.TEXTURE_3D?a.texImage3D(d,0,a.RGBA,1,1,1,0,a.RGBA,a.UNSIGNED_BYTE,e):a.texImage2D(d,0,a.RGBA,1,1,0,a.RGBA,a.UNSIGNED_BYTE,e)}}function p(a,c,d,e){e=e||m,d=d||A.textureOptions,o(a,c,d),d=b.shallowCopy(d);var f=n(d.src,d.crossOrigin,function(b,f){b?e(b,c,f):(J(a,c,f,d),e(null,c,f))});return f}function q(a,c,d,g){function h(b){return function(h,i){--r,h?s.push(h):i.width!==i.height?s.push("cubemap face img is not a square: "+i.src):(e(a,d),a.bindTexture(p,c),5===r?k(a).forEach(function(b){a.texImage2D(b,0,j,j,l,i)}):a.texImage2D(b,0,j,j,l,i),f(a,d),a.generateMipmap(p)),0===r&&g(s.length?s:void 0,q,c)}}g=g||m;var i=d.src;if(6!==i.length)throw"there must be 6 urls for a cubemap";var j=d.format||a.RGBA,l=d.type||a.UNSIGNED_BYTE,p=d.target||a.TEXTURE_2D;if(p!==a.TEXTURE_CUBE_MAP)throw"target must be TEXTURE_CUBE_MAP";o(a,c,d),d=b.shallowCopy(d);var q,r=6,s=[],t=k(a,d);q=i.map(function(a,b){return n(a,d.crossOrigin,h(t[b]))})}function r(a){switch(a){case C:case F:return 1;case G:return 2;case D:return 3;case E:return 4;default:throw"unknown type: "+a}}function s(b,c){return B(c)?a.getGLTypeForTypedArray(c):b.UNSIGNED_BYTE}function t(a,b,c,d,e){if(e%1!==0)throw"can't guess dimensions";if(c||d){if(d){if(!c&&(c=e/d,c%1))throw"can't guess dimensions"}else if(d=e/c,d%1)throw"can't guess dimensions"}else{var f=Math.sqrt(e/(b===a.TEXTURE_CUBE_MAP?6:1));f%1===0?(c=f,d=f):(c=e,d=1)}return{width:c,height:d}}function u(b,c,d,g){g=g||A.textureOptions;var h=g.target||b.TEXTURE_2D;b.bindTexture(h,c);var i=g.width,j=g.height,k=g.depth,m=g.format||b.RGBA,n=g.internalFormat||m,o=g.type||s(b,d),p=r(m),q=d.length/p;if(q%1)throw"length wrong size for format: "+H(b,m);var u;if(h===b.TEXTURE_3D)if(i||j||k)!i||j&&k?!j||i&&k?(u=t(b,h,i,j,q/k),i=u.width,j=u.height):(u=t(b,h,i,k,q/j),i=u.width,k=u.height):(u=t(b,h,j,k,q/i),j=u.width,k=u.height);else{var v=Math.cbrt(q);if(v%1!==0)throw"can't guess cube size of array of numElements: "+q;i=v,j=v,k=v}else u=t(b,h,i,j,q),i=u.width,j=u.height;if(B(d))d instanceof Uint8ClampedArray&&(d=new Uint8Array(d.buffer));else{var w=a.getTypedArrayTypeForGLType(o);d=new w(d)}if(b.pixelStorei(b.UNPACK_ALIGNMENT,g.unpackAlignment||1),e(b,g),h===b.TEXTURE_CUBE_MAP){var x=q/6*p;l(b,g).forEach(function(a){var c=x*a.ndx,e=d.subarray(c,c+x);b.texImage2D(a.face,0,n,i,j,0,m,o,e)})}else h===b.TEXTURE_3D?b.texImage3D(h,0,n,i,j,k,0,m,o,d):b.texImage2D(h,0,n,i,j,0,m,o,d);return f(b,g),{width:i,height:j,depth:k}}function v(a,b,c){var d=c.target||a.TEXTURE_2D;a.bindTexture(d,b);var g=c.format||a.RGBA,h=c.internalFormat||g,i=c.type||a.UNSIGNED_BYTE;if(e(a,c),d===a.TEXTURE_CUBE_MAP)for(var j=0;j<6;++j)a.texImage2D(a.TEXTURE_CUBE_MAP_POSITIVE_X+j,0,h,c.width,c.height,0,g,i,null);else d===a.TEXTURE_3D?a.texImage3D(d,0,h,c.width,c.height,c.depth,0,g,i,null):a.texImage2D(d,0,h,c.width,c.height,0,g,i,null);f(a,c)}function w(a,b,c){c=c||m,b=b||A.textureOptions;var d=a.createTexture(),e=b.target||a.TEXTURE_2D,f=b.width||1,h=b.height||1;a.bindTexture(e,d),e===a.TEXTURE_CUBE_MAP&&(a.texParameteri(e,a.TEXTURE_WRAP_S,a.CLAMP_TO_EDGE),a.texParameteri(e,a.TEXTURE_WRAP_T,a.CLAMP_TO_EDGE));var i=b.src;if(i)if("function"==typeof i&&(i=i(a,b)),"string"==typeof i)p(a,d,b,c);else if(B(i)||Array.isArray(i)&&("number"==typeof i[0]||Array.isArray(i[0])||B(i[0]))){var k=u(a,d,i,b);f=k.width,h=k.height}else if(Array.isArray(i)&&"string"==typeof i[0])q(a,d,b,c);else{if(!(i instanceof HTMLElement))throw"unsupported src type";J(a,d,i,b),f=i.width,h=i.height}else v(a,d,b);return b.auto!==!1&&j(a,d,b,f,h),g(a,d,b),d}function x(a,b,c,d,e){d=d||c.width,e=e||c.height;var f=c.target||a.TEXTURE_2D;a.bindTexture(f,b);var g,h=c.format||a.RGBA,i=c.src;if(g=i&&(B(i)||Array.isArray(i)&&"number"==typeof i[0])?c.type||s(a,i):c.type||a.UNSIGNED_BYTE,f===a.TEXTURE_CUBE_MAP)for(var j=0;j<6;++j)a.texImage2D(a.TEXTURE_CUBE_MAP_POSITIVE_X+j,0,h,d,e,0,h,g,null);else a.texImage2D(f,0,h,d,e,0,h,g,null)}function y(a){return"string"==typeof a||Array.isArray(a)&&"string"==typeof a[0]}function z(a,b,c){function d(){0===e&&setTimeout(function(){c(f.length?f:void 0,g,h)},0)}c=c||m;var e=0,f=[],g={},h={};return Object.keys(b).forEach(function(c){var i,j=b[c];y(j.src)&&(i=function(a,b,g){h[c]=g,--e,a&&f.push(a),d()},++e),g[c]=w(a,j,i)}),d(),g}var A={textureColor:new Uint8Array([128,192,255,255]),textureOptions:{},crossOrigin:void 0},B=a.isArrayBuffer,C=6406,D=6407,E=6408,F=6409,G=6410,H=function(){function a(a){b||(b={},Object.keys(a).forEach(function(c){"number"==typeof a[c]&&(b[a[c]]=c)}))}var b;return function(c,d){return a(),b[d]||"0x"+d.toString(16)}}(),I={},J=function(){var a=document.createElement("canvas").getContext("2d");return function(b,c,d,h){h=h||A.textureOptions;var i=h.target||b.TEXTURE_2D,k=d.width,m=d.height,n=h.format||b.RGBA,o=h.internalFormat||n,p=h.type||b.UNSIGNED_BYTE;if(e(b,h),b.bindTexture(i,c),i===b.TEXTURE_CUBE_MAP){var q,r,s=d.width,t=d.height;if(s/6===t)q=t,r=[0,0,1,0,2,0,3,0,4,0,5,0];else if(t/6===s)q=s,r=[0,0,0,1,0,2,0,3,0,4,0,5];else if(s/3===t/2)q=s/3,r=[0,0,1,0,2,0,0,1,1,1,2,1];else{if(s/2!==t/3)throw"can't figure out cube map from element: "+(d.src?d.src:d.nodeName);q=s/2,r=[0,0,1,0,0,1,1,1,0,2,1,2]}a.canvas.width=q,a.canvas.height=q,k=q,m=q,l(b,h).forEach(function(c){var e=r[2*c.ndx+0]*q,f=r[2*c.ndx+1]*q;a.drawImage(d,e,f,q,q,0,0,q,q),b.texImage2D(c.face,0,o,n,p,a.canvas)}),a.canvas.width=1,a.canvas.height=1}else if(i===b.TEXTURE_3D){var u=Math.min(d.width,d.height),v=Math.max(d.width,d.height),w=v/u;if(w%1!==0)throw"can not compute 3D dimensions of element";var x=d.width===v?1:0,y=d.height===v?1:0;b.texImage3D(i,0,o,u,u,u,0,n,p,null),a.canvas.width=u,a.canvas.height=u;for(var z=0;z<w;++z){var B=z*u*x,C=z*u*y,D=u,E=u,F=0,G=0,H=u,I=u;a.drawImage(d,B,C,D,E,F,G,H,I),b.texSubImage3D(i,0,0,0,z,n,p,a.canvas)}a.canvas.width=0,a.canvas.height=0}else b.texImage2D(i,0,o,n,p,d);f(b,h),h.auto!==!1&&j(b,c,h,k,m),g(b,c,h)}}();return{setDefaults_:d,createTexture:w,setEmptyTexture:v,setTextureFromArray:u,loadTextureFromUrl:p,setTextureFromElement:J,setTextureFilteringForSize:j,setTextureParameters:g,setDefaultTextureColor:c,createTextures:z,resizeTexture:x,getNumComponentsForFormat:r}}),c("twgl/framebuffers",["./textures","./utils"],function(a,b){function c(a){return y[a]}function d(a){return z[a]}function e(e,f,g,h){var i=e.FRAMEBUFFER,j=e.createFramebuffer();e.bindFramebuffer(i,j),g=g||e.drawingBufferWidth,h=h||e.drawingBufferHeight,f=f||x;var k=0,l={framebuffer:j,attachments:[],width:g,height:h};return f.forEach(function(f){var j=f.attachment,m=f.format,n=c(m);if(n||(n=r+k++),!j)if(d(m))j=e.createRenderbuffer(),e.bindRenderbuffer(e.RENDERBUFFER,j),e.renderbufferStorage(e.RENDERBUFFER,m,g,h);else{var o=b.shallowCopy(f);o.width=g,o.height=h,void 0===o.auto&&(o.auto=!1,o.min=o.min||e.LINEAR,o.mag=o.mag||e.LINEAR,o.wrapS=o.wrapS||o.wrap||e.CLAMP_TO_EDGE,o.wrapT=o.wrapT||o.wrap||e.CLAMP_TO_EDGE),j=a.createTexture(e,o)}if(j instanceof WebGLRenderbuffer)e.framebufferRenderbuffer(i,n,e.RENDERBUFFER,j);else{if(!(j instanceof WebGLTexture))throw"unknown attachment type";e.framebufferTexture2D(i,n,f.texTarget||e.TEXTURE_2D,j,f.level||0)}l.attachments.push(j)}),l}function f(b,c,d,e,f){e=e||b.drawingBufferWidth,f=f||b.drawingBufferHeight,c.width=e,c.height=f,d=d||x,d.forEach(function(d,g){var h=c.attachments[g],i=d.format;if(h instanceof WebGLRenderbuffer)b.bindRenderbuffer(b.RENDERBUFFER,h),b.renderbufferStorage(b.RENDERBUFFER,i,e,f);else{if(!(h instanceof WebGLTexture))throw"unknown attachment type";a.resizeTexture(b,h,d,e,f)}})}function g(a,b,c){c=c||a.FRAMEBUFFER,b?(a.bindFramebuffer(c,b.framebuffer),a.viewport(0,0,b.width,b.height)):(a.bindFramebuffer(c,null),a.viewport(0,0,a.drawingBufferWidth,a.drawingBufferHeight))}var h=5121,i=6402,j=6408,k=32854,l=32855,m=36194,n=33189,o=6401,p=36168,q=34041,r=36064,s=36096,t=36128,u=33306,v=33071,w=9729,x=[{format:j,type:h,min:w,wrap:v},{format:q}],y={};y[q]=u,y[o]=t,y[p]=t,y[i]=s,y[n]=s;var z={};return z[k]=!0,z[l]=!0,z[m]=!0,z[q]=!0,z[n]=!0,z[o]=!0,z[p]=!0,{bindFramebufferInfo:g,createFramebufferInfo:e,resizeFramebufferInfo:f}}),c("twgl/twgl",["./attributes","./draw","./framebuffers","./programs","./textures","./typedarrays","./utils"],function(a,b,c,d,e,f,g){function h(b){g.copyExistingProperties(b,q),a.setDefaults_(b),e.setDefaults_(b)}function i(a){if(a&&q.enableVertexArrayObjects&&g.isWebGL1(a)){var b=a.getExtension("OES_vertex_array_object");b&&(a.createVertexArray=function(){return b.createVertexArrayOES()},a.deleteVertexArray=function(a){b.deleteVertexArrayOES(a)},a.isVertexArray=function(a){return b.isVertexArrayOES(a)},a.bindVertexArray=function(a){b.bindVertexArrayOES(a)},a.VERTEX_ARRAY_BINDING=b.VERTEX_ARRAY_BINDING_OES)}}function j(a,b){for(var c=["webgl","experimental-webgl"],d=null,e=0;e<c.length;++e){try{d=a.getContext(c[e],b)}catch(f){}if(d)break}return d}function k(a,b){var c=j(a,b);return i(c),c}function l(a,b){for(var c=["webgl2","experimental-webgl2","webgl","experimental-webgl"],d=null,e=0;e<c.length;++e){try{d=a.getContext(c[e],b)}catch(f){}if(d)break}return d}function m(a,b){var c=l(a,b);return i(c),c}function n(a,b){b=b||1,b=Math.max(1,b);var c=a.clientWidth*b|0,d=a.clientHeight*b|0;return(a.width!==c||a.height!==d)&&(a.width=c,a.height=d,!0)}function o(a){return"_"!==a[a.length-1]}function p(a,b){return Object.keys(a).filter(o).forEach(function(c){b[c]=a[c]}),b}var q={enableVertexArrayObjects:!0},r={getContext:m,getWebGLContext:k,isWebGL1:g.isWebGL1,isWebGL2:g.isWebGL2,resizeCanvasToDisplaySize:n,setDefaults:h},s={attributes:a,draw:b,framebuffers:c,programs:d,textures:e,typedArrays:f};return Object.keys(s).forEach(function(a){var b=s[a];p(b,r),r[a]=p(b,{})}),r}),c("twgl/v3",[],function(){function a(a){var b=q;return q=a,b}function b(a,b,c){var d=new q(3);return a&&(d[0]=a),b&&(d[1]=b),c&&(d[2]=c),d}function c(a,b,c){return c=c||new q(3),c[0]=a[0]+b[0],c[1]=a[1]+b[1],c[2]=a[2]+b[2],c}function d(a,b,c){return c=c||new q(3),c[0]=a[0]-b[0],c[1]=a[1]-b[1],c[2]=a[2]-b[2],c}function e(a,b,c,d){return d=d||new q(3),d[0]=(1-c)*a[0]+c*b[0],d[1]=(1-c)*a[1]+c*b[1],d[2]=(1-c)*a[2]+c*b[2],d}function f(a,b,c){return c=c||new q(3),c[0]=a[0]*b,c[1]=a[1]*b,c[2]=a[2]*b,c}function g(a,b,c){return c=c||new q(3),c[0]=a[0]/b,c[1]=a[1]/b,c[2]=a[2]/b,c}function h(a,b,c){return c=c||new q(3),c[0]=a[1]*b[2]-a[2]*b[1],c[1]=a[2]*b[0]-a[0]*b[2],c[2]=a[0]*b[1]-a[1]*b[0],c}function i(a,b){return a[0]*b[0]+a[1]*b[1]+a[2]*b[2]}function j(a){
return Math.sqrt(a[0]*a[0]+a[1]*a[1]+a[2]*a[2])}function k(a){return a[0]*a[0]+a[1]*a[1]+a[2]*a[2]}function l(a,b){b=b||new q(3);var c=a[0]*a[0]+a[1]*a[1]+a[2]*a[2],d=Math.sqrt(c);return d>1e-5?(b[0]=a[0]/d,b[1]=a[1]/d,b[2]=a[2]/d):(b[0]=0,b[1]=0,b[2]=0),b}function m(a,b){return b=b||new q(3),b[0]=-a[0],b[1]=-a[1],b[2]=-a[2],b}function n(a,b){return b=b||new q(3),b[0]=a[0],b[1]=a[1],b[2]=a[2],b}function o(a,b,c){return c=c||new q(3),c[0]=a[0]*b[0],c[1]=a[1]*b[1],c[2]=a[2]*b[2],c}function p(a,b,c){return c=c||new q(3),c[0]=a[0]/b[0],c[1]=a[1]/b[1],c[2]=a[2]/b[2],c}var q=Float32Array;return{add:c,copy:n,create:b,cross:h,divide:p,divScalar:g,dot:i,lerp:e,length:j,lengthSq:k,mulScalar:f,multiply:o,negate:m,normalize:l,setDefaultType:a,subtract:d}}),c("twgl/m4",["./v3"],function(a){function b(a){var b=F;return F=a,b}function c(a,b){return b=b||new F(16),b[0]=-a[0],b[1]=-a[1],b[2]=-a[2],b[3]=-a[3],b[4]=-a[4],b[5]=-a[5],b[6]=-a[6],b[7]=-a[7],b[8]=-a[8],b[9]=-a[9],b[10]=-a[10],b[11]=-a[11],b[12]=-a[12],b[13]=-a[13],b[14]=-a[14],b[15]=-a[15],b}function d(a,b){return b=b||new F(16),b[0]=a[0],b[1]=a[1],b[2]=a[2],b[3]=a[3],b[4]=a[4],b[5]=a[5],b[6]=a[6],b[7]=a[7],b[8]=a[8],b[9]=a[9],b[10]=a[10],b[11]=a[11],b[12]=a[12],b[13]=a[13],b[14]=a[14],b[15]=a[15],b}function e(a){return a=a||new F(16),a[0]=1,a[1]=0,a[2]=0,a[3]=0,a[4]=0,a[5]=1,a[6]=0,a[7]=0,a[8]=0,a[9]=0,a[10]=1,a[11]=0,a[12]=0,a[13]=0,a[14]=0,a[15]=1,a}function f(a,b){if(b=b||new F(16),b===a){var c;return c=a[1],a[1]=a[4],a[4]=c,c=a[2],a[2]=a[8],a[8]=c,c=a[3],a[3]=a[12],a[12]=c,c=a[6],a[6]=a[9],a[9]=c,c=a[7],a[7]=a[13],a[13]=c,c=a[11],a[11]=a[14],a[14]=c,b}var d=a[0],e=a[1],f=a[2],g=a[3],h=a[4],i=a[5],j=a[6],k=a[7],l=a[8],m=a[9],n=a[10],o=a[11],p=a[12],q=a[13],r=a[14],s=a[15];return b[0]=d,b[1]=h,b[2]=l,b[3]=p,b[4]=e,b[5]=i,b[6]=m,b[7]=q,b[8]=f,b[9]=j,b[10]=n,b[11]=r,b[12]=g,b[13]=k,b[14]=o,b[15]=s,b}function g(a,b){b=b||new F(16);var c=a[0],d=a[1],e=a[2],f=a[3],g=a[4],h=a[5],i=a[6],j=a[7],k=a[8],l=a[9],m=a[10],n=a[11],o=a[12],p=a[13],q=a[14],r=a[15],s=m*r,t=q*n,u=i*r,v=q*j,w=i*n,x=m*j,y=e*r,z=q*f,A=e*n,B=m*f,C=e*j,D=i*f,E=k*p,G=o*l,H=g*p,I=o*h,J=g*l,K=k*h,L=c*p,M=o*d,N=c*l,O=k*d,P=c*h,Q=g*d,R=s*h+v*l+w*p-(t*h+u*l+x*p),S=t*d+y*l+B*p-(s*d+z*l+A*p),T=u*d+z*h+C*p-(v*d+y*h+D*p),U=x*d+A*h+D*l-(w*d+B*h+C*l),V=1/(c*R+g*S+k*T+o*U);return b[0]=V*R,b[1]=V*S,b[2]=V*T,b[3]=V*U,b[4]=V*(t*g+u*k+x*o-(s*g+v*k+w*o)),b[5]=V*(s*c+z*k+A*o-(t*c+y*k+B*o)),b[6]=V*(v*c+y*g+D*o-(u*c+z*g+C*o)),b[7]=V*(w*c+B*g+C*k-(x*c+A*g+D*k)),b[8]=V*(E*j+I*n+J*r-(G*j+H*n+K*r)),b[9]=V*(G*f+L*n+O*r-(E*f+M*n+N*r)),b[10]=V*(H*f+M*j+P*r-(I*f+L*j+Q*r)),b[11]=V*(K*f+N*j+Q*n-(J*f+O*j+P*n)),b[12]=V*(H*m+K*q+G*i-(J*q+E*i+I*m)),b[13]=V*(N*q+E*e+M*m-(L*m+O*q+G*e)),b[14]=V*(L*i+Q*q+I*e-(P*q+H*e+M*i)),b[15]=V*(P*m+J*e+O*i-(N*i+Q*m+K*e)),b}function h(a,b,c){c=c||new F(16);var d=a[0],e=a[1],f=a[2],g=a[3],h=a[4],i=a[5],j=a[6],k=a[7],l=a[8],m=a[9],n=a[10],o=a[11],p=a[12],q=a[13],r=a[14],s=a[15],t=b[0],u=b[1],v=b[2],w=b[3],x=b[4],y=b[5],z=b[6],A=b[7],B=b[8],C=b[9],D=b[10],E=b[11],G=b[12],H=b[13],I=b[14],J=b[15];return c[0]=d*t+e*x+f*B+g*G,c[1]=d*u+e*y+f*C+g*H,c[2]=d*v+e*z+f*D+g*I,c[3]=d*w+e*A+f*E+g*J,c[4]=h*t+i*x+j*B+k*G,c[5]=h*u+i*y+j*C+k*H,c[6]=h*v+i*z+j*D+k*I,c[7]=h*w+i*A+j*E+k*J,c[8]=l*t+m*x+n*B+o*G,c[9]=l*u+m*y+n*C+o*H,c[10]=l*v+m*z+n*D+o*I,c[11]=l*w+m*A+n*E+o*J,c[12]=p*t+q*x+r*B+s*G,c[13]=p*u+q*y+r*C+s*H,c[14]=p*v+q*z+r*D+s*I,c[15]=p*w+q*A+r*E+s*J,c}function i(a,b,c){return c=c||e(),a!==c&&(c[0]=a[0],c[1]=a[1],c[2]=a[2],c[3]=a[3],c[4]=a[4],c[5]=a[5],c[6]=a[6],c[7]=a[7],c[8]=a[8],c[9]=a[9],c[10]=a[10],c[11]=a[11]),c[12]=b[0],c[13]=b[1],c[14]=b[2],c[15]=1,c}function j(b,c){return c=c||a.create(),c[0]=b[12],c[1]=b[13],c[2]=b[14],c}function k(b,c,d){d=d||a.create();var e=4*c;return d[0]=b[e+0],d[1]=b[e+1],d[2]=b[e+2],d}function l(a,b,c,e){e!==a&&(e=d(a,e));var f=4*c;return e[f+0]=b[0],e[f+1]=b[1],e[f+2]=b[2],e}function m(a,b,c,d,e){e=e||new F(16);var f=Math.tan(.5*Math.PI-.5*a),g=1/(c-d);return e[0]=f/b,e[1]=0,e[2]=0,e[3]=0,e[4]=0,e[5]=f,e[6]=0,e[7]=0,e[8]=0,e[9]=0,e[10]=(c+d)*g,e[11]=-1,e[12]=0,e[13]=0,e[14]=c*d*g*2,e[15]=0,e}function n(a,b,c,d,e,f,g){return g=g||new F(16),g[0]=2/(b-a),g[1]=0,g[2]=0,g[3]=0,g[4]=0,g[5]=2/(d-c),g[6]=0,g[7]=0,g[8]=0,g[9]=0,g[10]=-1/(f-e),g[11]=0,g[12]=(b+a)/(a-b),g[13]=(d+c)/(c-d),g[14]=-e/(e-f),g[15]=1,g}function o(a,b,c,d,e,f,g){g=g||new F(16);var h=b-a,i=d-c,j=e-f;return g[0]=2*e/h,g[1]=0,g[2]=0,g[3]=0,g[4]=0,g[5]=2*e/i,g[6]=0,g[7]=0,g[8]=(a+b)/h,g[9]=(d+c)/i,g[10]=f/j,g[11]=-1,g[12]=0,g[13]=0,g[14]=e*f/j,g[15]=0,g}function p(b,c,d,e){e=e||new F(16);var f=G,g=H,h=I;return a.normalize(a.subtract(b,c,h),h),a.normalize(a.cross(d,h,f),f),a.normalize(a.cross(h,f,g),g),e[0]=f[0],e[1]=f[1],e[2]=f[2],e[3]=0,e[4]=g[0],e[5]=g[1],e[6]=g[2],e[7]=0,e[8]=h[0],e[9]=h[1],e[10]=h[2],e[11]=0,e[12]=b[0],e[13]=b[1],e[14]=b[2],e[15]=1,e}function q(a,b){return b=b||new F(16),b[0]=1,b[1]=0,b[2]=0,b[3]=0,b[4]=0,b[5]=1,b[6]=0,b[7]=0,b[8]=0,b[9]=0,b[10]=1,b[11]=0,b[12]=a[0],b[13]=a[1],b[14]=a[2],b[15]=1,b}function r(a,b,c){c=c||new F(16);var d=b[0],e=b[1],f=b[2],g=a[0],h=a[1],i=a[2],j=a[3],k=a[4],l=a[5],m=a[6],n=a[7],o=a[8],p=a[9],q=a[10],r=a[11],s=a[12],t=a[13],u=a[14],v=a[15];return a!==c&&(c[0]=g,c[1]=h,c[2]=i,c[3]=j,c[4]=k,c[5]=l,c[6]=m,c[7]=n,c[8]=o,c[9]=p,c[10]=q,c[11]=r),c[12]=g*d+k*e+o*f+s,c[13]=h*d+l*e+p*f+t,c[14]=i*d+m*e+q*f+u,c[15]=j*d+n*e+r*f+v,c}function s(a,b){b=b||new F(16);var c=Math.cos(a),d=Math.sin(a);return b[0]=1,b[1]=0,b[2]=0,b[3]=0,b[4]=0,b[5]=c,b[6]=d,b[7]=0,b[8]=0,b[9]=-d,b[10]=c,b[11]=0,b[12]=0,b[13]=0,b[14]=0,b[15]=1,b}function t(a,b,c){c=c||new F(16);var d=a[4],e=a[5],f=a[6],g=a[7],h=a[8],i=a[9],j=a[10],k=a[11],l=Math.cos(b),m=Math.sin(b);return c[4]=l*d+m*h,c[5]=l*e+m*i,c[6]=l*f+m*j,c[7]=l*g+m*k,c[8]=l*h-m*d,c[9]=l*i-m*e,c[10]=l*j-m*f,c[11]=l*k-m*g,a!==c&&(c[0]=a[0],c[1]=a[1],c[2]=a[2],c[3]=a[3],c[12]=a[12],c[13]=a[13],c[14]=a[14],c[15]=a[15]),c}function u(a,b){b=b||new F(16);var c=Math.cos(a),d=Math.sin(a);return b[0]=c,b[1]=0,b[2]=-d,b[3]=0,b[4]=0,b[5]=1,b[6]=0,b[7]=0,b[8]=d,b[9]=0,b[10]=c,b[11]=0,b[12]=0,b[13]=0,b[14]=0,b[15]=1,b}function v(a,b,c){c=c||new F(16);var d=a[0],e=a[1],f=a[2],g=a[3],h=a[8],i=a[9],j=a[10],k=a[11],l=Math.cos(b),m=Math.sin(b);return c[0]=l*d-m*h,c[1]=l*e-m*i,c[2]=l*f-m*j,c[3]=l*g-m*k,c[8]=l*h+m*d,c[9]=l*i+m*e,c[10]=l*j+m*f,c[11]=l*k+m*g,a!==c&&(c[4]=a[4],c[5]=a[5],c[6]=a[6],c[7]=a[7],c[12]=a[12],c[13]=a[13],c[14]=a[14],c[15]=a[15]),c}function w(a,b){b=b||new F(16);var c=Math.cos(a),d=Math.sin(a);return b[0]=c,b[1]=d,b[2]=0,b[3]=0,b[4]=-d,b[5]=c,b[6]=0,b[7]=0,b[8]=0,b[9]=0,b[10]=1,b[11]=0,b[12]=0,b[13]=0,b[14]=0,b[15]=1,b}function x(a,b,c){c=c||new F(16);var d=a[0],e=a[1],f=a[2],g=a[3],h=a[4],i=a[5],j=a[6],k=a[7],l=Math.cos(b),m=Math.sin(b);return c[0]=l*d+m*h,c[1]=l*e+m*i,c[2]=l*f+m*j,c[3]=l*g+m*k,c[4]=l*h-m*d,c[5]=l*i-m*e,c[6]=l*j-m*f,c[7]=l*k-m*g,a!==c&&(c[8]=a[8],c[9]=a[9],c[10]=a[10],c[11]=a[11],c[12]=a[12],c[13]=a[13],c[14]=a[14],c[15]=a[15]),c}function y(a,b,c){c=c||new F(16);var d=a[0],e=a[1],f=a[2],g=Math.sqrt(d*d+e*e+f*f);d/=g,e/=g,f/=g;var h=d*d,i=e*e,j=f*f,k=Math.cos(b),l=Math.sin(b),m=1-k;return c[0]=h+(1-h)*k,c[1]=d*e*m+f*l,c[2]=d*f*m-e*l,c[3]=0,c[4]=d*e*m-f*l,c[5]=i+(1-i)*k,c[6]=e*f*m+d*l,c[7]=0,c[8]=d*f*m+e*l,c[9]=e*f*m-d*l,c[10]=j+(1-j)*k,c[11]=0,c[12]=0,c[13]=0,c[14]=0,c[15]=1,c}function z(a,b,c,d){d=d||new F(16);var e=b[0],f=b[1],g=b[2],h=Math.sqrt(e*e+f*f+g*g);e/=h,f/=h,g/=h;var i=e*e,j=f*f,k=g*g,l=Math.cos(c),m=Math.sin(c),n=1-l,o=i+(1-i)*l,p=e*f*n+g*m,q=e*g*n-f*m,r=e*f*n-g*m,s=j+(1-j)*l,t=f*g*n+e*m,u=e*g*n+f*m,v=f*g*n-e*m,w=k+(1-k)*l,x=a[0],y=a[1],z=a[2],A=a[3],B=a[4],C=a[5],D=a[6],E=a[7],G=a[8],H=a[9],I=a[10],J=a[11];return d[0]=o*x+p*B+q*G,d[1]=o*y+p*C+q*H,d[2]=o*z+p*D+q*I,d[3]=o*A+p*E+q*J,d[4]=r*x+s*B+t*G,d[5]=r*y+s*C+t*H,d[6]=r*z+s*D+t*I,d[7]=r*A+s*E+t*J,d[8]=u*x+v*B+w*G,d[9]=u*y+v*C+w*H,d[10]=u*z+v*D+w*I,d[11]=u*A+v*E+w*J,a!==d&&(d[12]=a[12],d[13]=a[13],d[14]=a[14],d[15]=a[15]),d}function A(a,b){return b=b||new F(16),b[0]=a[0],b[1]=0,b[2]=0,b[3]=0,b[4]=0,b[5]=a[1],b[6]=0,b[7]=0,b[8]=0,b[9]=0,b[10]=a[2],b[11]=0,b[12]=0,b[13]=0,b[14]=0,b[15]=1,b}function B(a,b,c){c=c||new F(16);var d=b[0],e=b[1],f=b[2];return c[0]=d*a[0],c[1]=d*a[1],c[2]=d*a[2],c[3]=d*a[3],c[4]=e*a[4],c[5]=e*a[5],c[6]=e*a[6],c[7]=e*a[7],c[8]=f*a[8],c[9]=f*a[9],c[10]=f*a[10],c[11]=f*a[11],a!==c&&(c[12]=a[12],c[13]=a[13],c[14]=a[14],c[15]=a[15]),c}function C(b,c,d){d=d||a.create();var e=c[0],f=c[1],g=c[2],h=e*b[3]+f*b[7]+g*b[11]+b[15];return d[0]=(e*b[0]+f*b[4]+g*b[8]+b[12])/h,d[1]=(e*b[1]+f*b[5]+g*b[9]+b[13])/h,d[2]=(e*b[2]+f*b[6]+g*b[10]+b[14])/h,d}function D(b,c,d){d=d||a.create();var e=c[0],f=c[1],g=c[2];return d[0]=e*b[0]+f*b[4]+g*b[8],d[1]=e*b[1]+f*b[5]+g*b[9],d[2]=e*b[2]+f*b[6]+g*b[10],d}function E(b,c,d){d=d||a.create();var e=g(b),f=c[0],h=c[1],i=c[2];return d[0]=f*e[0]+h*e[1]+i*e[2],d[1]=f*e[4]+h*e[5]+i*e[6],d[2]=f*e[8]+h*e[9]+i*e[10],d}var F=Float32Array,G=a.create(),H=a.create(),I=a.create();return{axisRotate:z,axisRotation:y,create:e,copy:d,frustum:o,getAxis:k,getTranslation:j,identity:e,inverse:g,lookAt:p,multiply:h,negate:c,ortho:n,perspective:m,rotateX:t,rotateY:v,rotateZ:x,rotateAxis:z,rotationX:s,rotationY:u,rotationZ:w,scale:B,scaling:A,setAxis:l,setDefaultType:b,setTranslation:i,transformDirection:D,transformNormal:E,transformPoint:C,translate:r,translation:q,transpose:f}}),c("twgl/primitives",["./attributes","./twgl","./utils","./m4","./v3"],function(a,b,c,d,e){function f(a,b){var c=0;return a.push=function(){for(var b=0;b<arguments.length;++b){var d=arguments[b];if(d instanceof Array||d.buffer&&d.buffer instanceof ArrayBuffer)for(var e=0;e<d.length;++e)a[c++]=d[e];else a[c++]=d}},a.reset=function(a){c=a||0},a.numComponents=b,Object.defineProperty(a,"numElements",{get:function(){return this.length/this.numComponents|0}}),a}function g(a,b,c){var d=c||Float32Array;return f(new d(a*b),a)}function h(a){return"indices"!==a}function i(a){function b(b){for(var f=a[b],h=f.numComponents,i=g(h,e,f.constructor),j=0;j<e;++j)for(var k=c[j],l=k*h,m=0;m<h;++m)i.push(f[l+m]);d[b]=i}var c=a.indices,d={},e=c.length;return Object.keys(a).filter(h).forEach(b),d}function j(a){if(a.indices)throw"can't flatten normals of indexed vertices. deindex them first";for(var b=a.normal,c=b.length,d=0;d<c;d+=9){var e=b[d+0],f=b[d+1],g=b[d+2],h=b[d+3],i=b[d+4],j=b[d+5],k=b[d+6],l=b[d+7],m=b[d+8],n=e+h+k,o=f+i+l,p=g+j+m,q=Math.sqrt(n*n+o*o+p*p);n/=q,o/=q,p/=q,b[d+0]=n,b[d+1]=o,b[d+2]=p,b[d+3]=n,b[d+4]=o,b[d+5]=p,b[d+6]=n,b[d+7]=o,b[d+8]=p}return a}function k(a,b,c){for(var d=a.length,e=new Float32Array(3),f=0;f<d;f+=3)c(b,[a[f],a[f+1],a[f+2]],e),a[f]=e[0],a[f+1]=e[1],a[f+2]=e[2]}function l(a,b,c){c=c||e.create();var d=b[0],f=b[1],g=b[2];return c[0]=d*a[0]+f*a[1]+g*a[2],c[1]=d*a[4]+f*a[5]+g*a[6],c[2]=d*a[8]+f*a[9]+g*a[10],c}function m(a,b){return k(a,b,d.transformDirection),a}function n(a,b){return k(a,d.inverse(b),l),a}function o(a,b){return k(a,b,d.transformPoint),a}function p(a,b){return Object.keys(a).forEach(function(c){var d=a[c];c.indexOf("pos")>=0?o(d,b):c.indexOf("tan")>=0||c.indexOf("binorm")>=0?m(d,b):c.indexOf("norm")>=0&&n(d,b)}),a}function q(a,b,c){return a=a||2,b=b||0,c=c||0,a*=.5,{position:{numComponents:2,data:[b+-1*a,c+-1*a,b+1*a,c+-1*a,b+-1*a,c+1*a,b+1*a,c+1*a]},normal:[0,0,1,0,0,1,0,0,1,0,0,1],texcoord:[0,0,1,0,0,1,1,1],indices:[0,1,2,2,1,3]}}function r(a,b,c,e,f){a=a||1,b=b||1,c=c||1,e=e||1,f=f||d.identity();for(var h=(c+1)*(e+1),i=g(3,h),j=g(3,h),k=g(2,h),l=0;l<=e;l++)for(var m=0;m<=c;m++){var n=m/c,o=l/e;i.push(a*n-.5*a,0,b*o-.5*b),j.push(0,1,0),k.push(n,o)}for(var q=c+1,r=g(3,c*e*2,Uint16Array),l=0;l<e;l++)for(var m=0;m<c;m++)r.push((l+0)*q+m,(l+1)*q+m,(l+0)*q+m+1),r.push((l+1)*q+m,(l+1)*q+m+1,(l+0)*q+m+1);var s=p({position:i,normal:j,texcoord:k,indices:r},f);return s}function s(a,b,c,d,e,f,h){if(b<=0||c<=0)throw Error("subdivisionAxis and subdivisionHeight must be > 0");d=d||0,e=e||Math.PI,f=f||0,h=h||2*Math.PI;for(var i=e-d,j=h-f,k=(b+1)*(c+1),l=g(3,k),m=g(3,k),n=g(2,k),o=0;o<=c;o++)for(var p=0;p<=b;p++){var q=p/b,r=o/c,s=j*q,t=i*r,u=Math.sin(s),v=Math.cos(s),w=Math.sin(t),x=Math.cos(t),y=v*w,z=x,A=u*w;l.push(a*y,a*z,a*A),m.push(y,z,A),n.push(1-q,r)}for(var B=b+1,C=g(3,b*c*2,Uint16Array),p=0;p<b;p++)for(var o=0;o<c;o++)C.push((o+0)*B+p,(o+0)*B+p+1,(o+1)*B+p),C.push((o+1)*B+p,(o+0)*B+p+1,(o+1)*B+p+1);return{position:l,normal:m,texcoord:n,indices:C}}function t(a){a=a||1;for(var b=a/2,c=[[-b,-b,-b],[+b,-b,-b],[-b,+b,-b],[+b,+b,-b],[-b,-b,+b],[+b,-b,+b],[-b,+b,+b],[+b,+b,+b]],d=[[1,0,0],[-1,0,0],[0,1,0],[0,-1,0],[0,0,1],[0,0,-1]],e=[[1,0],[0,0],[0,1],[1,1]],f=24,h=g(3,f),i=g(3,f),j=g(2,f),k=g(3,12,Uint16Array),l=0;l<6;++l){for(var m=L[l],n=0;n<4;++n){var o=c[m[n]],p=d[l],q=e[n];h.push(o),i.push(p),j.push(q)}var r=4*l;k.push(r+0,r+1,r+2),k.push(r+0,r+2,r+3)}return{position:h,normal:i,texcoord:j,indices:k}}function u(a,b,c,d,e,f,h){if(d<3)throw Error("radialSubdivisions must be 3 or greater");if(e<1)throw Error("verticalSubdivisions must be 1 or greater");for(var i=void 0===f||f,j=void 0===h||h,k=(i?2:0)+(j?2:0),l=(d+1)*(e+1+k),m=g(3,l),n=g(3,l),o=g(2,l),p=g(3,d*(e+k)*2,Uint16Array),q=d+1,r=Math.atan2(a-b,c),s=Math.cos(r),t=Math.sin(r),u=i?-2:0,v=e+(j?2:0),w=u;w<=v;++w){var x,y=w/e,z=c*y;w<0?(z=0,y=1,x=a):w>e?(z=c,y=1,x=b):x=a+(b-a)*(w/e),w!==-2&&w!==e+2||(x=0,y=0),z-=c/2;for(var A=0;A<q;++A){var B=Math.sin(A*Math.PI*2/d),C=Math.cos(A*Math.PI*2/d);m.push(B*x,z,C*x),n.push(w<0||w>e?0:B*s,w<0?-1:w>e?1:t,w<0||w>e?0:C*s),o.push(A/d,1-y)}}for(var w=0;w<e+k;++w)for(var A=0;A<d;++A)p.push(q*(w+0)+0+A,q*(w+0)+1+A,q*(w+1)+1+A),p.push(q*(w+0)+0+A,q*(w+1)+1+A,q*(w+1)+0+A);return{position:m,normal:n,texcoord:o,indices:p}}function v(a,b){b=b||[];for(var c=[],d=0;d<a.length;d+=4){var e=a[d],f=a.slice(d+1,d+4);f.push.apply(f,b);for(var g=0;g<e;++g)c.push.apply(c,f)}return c}function w(){var a=[0,0,0,0,150,0,30,0,0,0,150,0,30,150,0,30,0,0,30,0,0,30,30,0,100,0,0,30,30,0,100,30,0,100,0,0,30,60,0,30,90,0,67,60,0,30,90,0,67,90,0,67,60,0,0,0,30,30,0,30,0,150,30,0,150,30,30,0,30,30,150,30,30,0,30,100,0,30,30,30,30,30,30,30,100,0,30,100,30,30,30,60,30,67,60,30,30,90,30,30,90,30,67,60,30,67,90,30,0,0,0,100,0,0,100,0,30,0,0,0,100,0,30,0,0,30,100,0,0,100,30,0,100,30,30,100,0,0,100,30,30,100,0,30,30,30,0,30,30,30,100,30,30,30,30,0,100,30,30,100,30,0,30,30,0,30,60,30,30,30,30,30,30,0,30,60,0,30,60,30,30,60,0,67,60,30,30,60,30,30,60,0,67,60,0,67,60,30,67,60,0,67,90,30,67,60,30,67,60,0,67,90,0,67,90,30,30,90,0,30,90,30,67,90,30,30,90,0,67,90,30,67,90,0,30,90,0,30,150,30,30,90,30,30,90,0,30,150,0,30,150,30,0,150,0,0,150,30,30,150,30,0,150,0,30,150,30,30,150,0,0,0,0,0,0,30,0,150,30,0,0,0,0,150,30,0,150,0],b=[.22,.19,.22,.79,.34,.19,.22,.79,.34,.79,.34,.19,.34,.19,.34,.31,.62,.19,.34,.31,.62,.31,.62,.19,.34,.43,.34,.55,.49,.43,.34,.55,.49,.55,.49,.43,0,0,1,0,0,1,0,1,1,0,1,1,0,0,1,0,0,1,0,1,1,0,1,1,0,0,1,0,0,1,0,1,1,0,1,1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,0,1,1,1,0,0,1,1,1,0,0,0,1,1,0,1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,1,0,1,1,0,0,1,1,0,1,0,0,1,0,1,1,0,0,0,1,1,1,0,0,1,1,1,0,0,0,1,1,0,1,0,0,1,0,1,1,0,0,0,1,1,1,0,0,1,1,1,0,0,0,0,1,1,1,0,0,1,1,1,0],c=v([18,0,0,1,18,0,0,-1,6,0,1,0,6,1,0,0,6,0,-1,0,6,1,0,0,6,0,1,0,6,1,0,0,6,0,-1,0,6,1,0,0,6,0,-1,0,6,-1,0,0]),d=v([18,200,70,120,18,80,70,200,6,70,200,210,6,200,200,70,6,210,100,70,6,210,160,70,6,70,180,210,6,100,70,210,6,76,210,100,6,140,210,80,6,90,130,110,6,160,160,220],[255]),e=a.length/3,f={position:g(3,e),texcoord:g(2,e),normal:g(3,e),color:g(4,e,Uint8Array),indices:g(3,e/3,Uint16Array)};f.position.push(a),f.texcoord.push(b),f.normal.push(c),f.color.push(d);for(var h=0;h<e;++h)f.indices.push(h);return f}function x(a,b,c,d,f,h,i){function j(a,b,c){return a+(b-a)*c}function k(b,c,g,i,k,l){for(var o=0;o<=f;o++){var s=c/(m-1),t=o/f,u=2*(s-.5),v=(h+t*n)*Math.PI,w=Math.sin(v),x=Math.cos(v),y=j(a,b,w),z=u*d,A=x*a,B=w*y;p.push(z,A,B);var C=e.add(e.multiply([0,w,x],g),i);q.push(C),r.push(s*k+l,t)}}function l(a,b){for(var c=0;c<f;++c)u.push(a+c+0,a+c+1,b+c+0),u.push(a+c+1,b+c+1,b+c+0)}if(f<=0)throw Error("subdivisionDown must be > 0");h=h||0,i=i||1;for(var m=2,n=i-h,o=2*(f+1)*(2+m),p=g(3,o),q=g(3,o),r=g(2,o),s=0;s<m;s++){var t=2*(s/(m-1)-.5);k(b,s,[1,1,1],[0,0,0],1,0),k(b,s,[0,0,0],[t,0,0],0,0),k(c,s,[1,1,1],[0,0,0],1,0),k(c,s,[0,0,0],[t,0,0],0,1)}var u=g(3,2*f*(2+m),Uint16Array),v=f+1;return l(0*v,4*v),l(5*v,7*v),l(6*v,2*v),l(3*v,1*v),{position:p,normal:q,texcoord:r,indices:u}}function y(a,b,c,d,e,f){return u(a,a,b,c,d,e,f)}function z(a,b,c,d,e,f){if(c<3)throw Error("radialSubdivisions must be 3 or greater");if(d<3)throw Error("verticalSubdivisions must be 3 or greater");e=e||0,f=f||2*Math.PI,range=f-e;for(var h=c+1,i=d+1,j=h*i,k=g(3,j),l=g(3,j),m=g(2,j),n=g(3,c*d*2,Uint16Array),o=0;o<i;++o)for(var p=o/d,q=p*Math.PI*2,r=Math.sin(q),s=a+r*b,t=Math.cos(q),u=t*b,v=0;v<h;++v){var w=v/c,x=e+w*range,y=Math.sin(x),z=Math.cos(x),A=y*s,B=z*s,C=y*r,D=z*r;k.push(A,u,B),l.push(C,t,D),m.push(w,1-p)}for(var o=0;o<d;++o)for(var v=0;v<c;++v){var E=1+v,F=1+o;n.push(h*o+v,h*F+v,h*o+E),n.push(h*F+v,h*F+E,h*o+E)}return{position:k,normal:l,texcoord:m,indices:n}}function A(a,b,c,d,e){if(b<3)throw Error("divisions must be at least 3");c=c?c:1,e=e?e:1,d=d?d:0;for(var f=(b+1)*(c+1),h=g(3,f),i=g(3,f),j=g(2,f),k=g(3,c*b*2,Uint16Array),l=0,m=a-d,n=b+1,o=0;o<=c;++o){for(var p=d+m*Math.pow(o/c,e),q=0;q<=b;++q){var r=2*Math.PI*q/b,s=p*Math.cos(r),t=p*Math.sin(r);if(h.push(s,0,t),i.push(0,1,0),j.push(1-q/b,o/c),o>0&&q!==b){var u=l+(q+1),v=l+q,w=l+q-n,x=l+(q+1)-n;k.push(u,v,w),k.push(u,w,x)}}l+=b+1}return{position:h,normal:i,texcoord:j,indices:k}}function B(a){return Math.random()*a|0}function C(a,b){b=b||{};var c=a.position.numElements,d=g(4,c,Uint8Array),e=b.rand||function(a,b){return b<3?B(256):255};if(a.color=d,a.indices)for(var f=0;f<c;++f)d.push(e(f,0),e(f,1),e(f,2),e(f,3));else for(var h=b.vertsPerColor||3,i=c/h,f=0;f<i;++f)for(var j=[e(f,0),e(f,1),e(f,2),e(f,3)],k=0;k<h;++k)d.push(j);return a}function D(a){return function(c){var d=a.apply(this,Array.prototype.slice.call(arguments,1));return b.createBuffersFromArrays(c,d)}}function E(a){return function(c){var d=a.apply(null,Array.prototype.slice.call(arguments,1));return b.createBufferInfoFromArrays(c,d)}}function F(a,b,c,d){d=d||0;for(var e=a.length,f=0;f<e;++f)b[c+f]=a[f]+d}function G(a,b){var d=J(a),e=new d.constructor(b),g=e;return d.numComponents&&d.numElements&&f(e,d.numComponents),a.data&&(g={data:e},c.copyNamedProperties(M,a,g)),g}function H(a){function b(b){for(var c,d=0,e=0;e<a.length;++e){var f=a[e],g=f[b],h=J(g);d+=h.length,c&&!g.data||(c=g)}return{length:d,spec:c}}function c(b,c,d){for(var e=0,f=0,g=0;g<a.length;++g){var h=a[g],i=h[b],j=J(i);"indices"===b?(F(j,d,f,e),e+=c[g]):F(j,d,f),f+=j.length}}for(var d,e={},f=0;f<a.length;++f){var g=a[f];Object.keys(g).forEach(function(a){e[a]||(e[a]=[]),d||"indices"===a||(d=a);var b=g[a],c=K(b,a),f=J(b),h=f.length/c;e[a].push(h)})}var h=e[d],i={};return Object.keys(e).forEach(function(a){var d=b(a),e=G(d.spec,d.length);c(a,h,J(e)),i[a]=e}),i}function I(a){var b={};return Object.keys(a).forEach(function(c){var d=a[c],e=J(d),f=G(d,e.length);F(e,J(f),0),b[c]=f}),b}var J=a.getArray_,K=a.getNumComponents_,L=[[3,7,5,1],[6,2,0,4],[6,7,3,2],[0,1,5,4],[7,6,4,5],[2,3,1,0]],M=["numComponents","size","type","normalize","stride","offset","attrib","name","attribName"];return{create3DFBufferInfo:E(w),create3DFBuffers:D(w),create3DFVertices:w,createAugmentedTypedArray:g,createCubeBufferInfo:E(t),createCubeBuffers:D(t),createCubeVertices:t,createPlaneBufferInfo:E(r),createPlaneBuffers:D(r),createPlaneVertices:r,createSphereBufferInfo:E(s),createSphereBuffers:D(s),createSphereVertices:s,createTruncatedConeBufferInfo:E(u),createTruncatedConeBuffers:D(u),createTruncatedConeVertices:u,createXYQuadBufferInfo:E(q),createXYQuadBuffers:D(q),createXYQuadVertices:q,createCresentBufferInfo:E(x),createCresentBuffers:D(x),createCresentVertices:x,createCylinderBufferInfo:E(y),createCylinderBuffers:D(y),createCylinderVertices:y,createTorusBufferInfo:E(z),createTorusBuffers:D(z),createTorusVertices:z,createDiscBufferInfo:E(A),createDiscBuffers:D(A),createDiscVertices:A,deindexVertices:i,flattenNormals:j,makeRandomVertexColors:C,reorientDirections:m,reorientNormals:n,reorientPositions:o,reorientVertices:p,concatVertices:H,duplicateVertices:I}}),c("main",["twgl/twgl","twgl/m4","twgl/v3","twgl/primitives"],function(a,b,c,d){return a.m4=b,a.v3=c,a.primitives=d,a}),b(["main"],function(a){return a},void 0,!0),c("build/js/twgl-includer-full",function(){}),b("main")});