| 8 | var GL=function(){function F(b){return{8:"BACKSPACE",9:"TAB",13:"ENTER",16:"SHIFT",27:"ESCAPE",32:"SPACE",37:"LEFT",38:"UP",39:"RIGHT",40:"DOWN"}[b]||(65<=b&&90>=b?String.fromCharCode(b):null)}function k(){var b=Array.prototype.concat.apply([],arguments);b.length||(b=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1]);this.m=G?new Float32Array(b):b}function t(){this.unique=[];this.indices=[];this.map={}}function v(b,c){this.buffer=null;this.target=b;this.type=c;this.data=[]}function o(b){b=b||{};this.vertexBuffers= |
| 9 | {};this.indexBuffers={};this.addVertexBuffer("vertices","gl_Vertex");b.coords&&this.addVertexBuffer("coords","gl_TexCoord");b.normals&&this.addVertexBuffer("normals","gl_Normal");b.colors&&this.addVertexBuffer("colors","gl_Color");(!("triangles"in b)||b.triangles)&&this.addIndexBuffer("triangles");b.lines&&this.addIndexBuffer("lines")}function H(b){return new j(2*(b&1)-1,(b&2)-1,(b&4)/2-1)}function u(b,c,a){this.t=arguments.length?b:Number.MAX_VALUE;this.hit=c;this.normal=a}function r(){var b=d.getParameter(d.VIEWPORT), |
| 10 | c=d.modelviewMatrix.m,a=new j(c[0],c[4],c[8]),e=new j(c[1],c[5],c[9]),f=new j(c[2],c[6],c[10]),c=new j(c[3],c[7],c[11]);this.eye=new j(-c.dot(a),-c.dot(e),-c.dot(f));a=b[0];e=a+b[2];f=b[1];c=f+b[3];this.ray00=d.unProject(a,f,1).subtract(this.eye);this.ray10=d.unProject(e,f,1).subtract(this.eye);this.ray01=d.unProject(a,c,1).subtract(this.eye);this.ray11=d.unProject(e,c,1).subtract(this.eye);this.viewport=b}function w(b,c,a){for(;null!=(result=b.exec(c));)a(result)}function E(b,c){function a(a){var b= |
| 11 | document.getElementById(a);return b?b.text:a}function e(a,b){var c={},d=/^((\s*\/\/.*\n|\s*#extension.*\n)+)[^]*$/.exec(b),b=d?d[1]+a+b.substr(d[1].length):a+b;w(/\bgl_\w+\b/g,a,function(a){a in c||(b=b.replace(RegExp("\\b"+a+"\\b","g"),"_"+a),c[a]=!0)});return b}function f(a,b){var c=d.createShader(a);d.shaderSource(c,b);d.compileShader(c);if(!d.getShaderParameter(c,d.COMPILE_STATUS))throw"compile error: "+d.getShaderInfoLog(c);return c}var b=a(b),c=a(c),i=b+c,h={};w(/\b(gl_[^;]*)\b;/g,"uniform mat3 gl_NormalMatrix;uniform mat4 gl_ModelViewMatrix;uniform mat4 gl_ProjectionMatrix;uniform mat4 gl_ModelViewProjectionMatrix;uniform mat4 gl_ModelViewMatrixInverse;uniform mat4 gl_ProjectionMatrixInverse;uniform mat4 gl_ModelViewProjectionMatrixInverse;", |
| 12 | function(a){a=a[1];if(-1!=i.indexOf(a)){var b=a.replace(/[a-z_]/g,"");h[b]="_"+a}});-1!=i.indexOf("ftransform")&&(h.MVPM="_gl_ModelViewProjectionMatrix");this.usedMatrices=h;b=e("uniform mat3 gl_NormalMatrix;uniform mat4 gl_ModelViewMatrix;uniform mat4 gl_ProjectionMatrix;uniform mat4 gl_ModelViewProjectionMatrix;uniform mat4 gl_ModelViewMatrixInverse;uniform mat4 gl_ProjectionMatrixInverse;uniform mat4 gl_ModelViewProjectionMatrixInverse;attribute vec4 gl_Vertex;attribute vec4 gl_TexCoord;attribute vec3 gl_Normal;attribute vec4 gl_Color;vec4 ftransform(){return gl_ModelViewProjectionMatrix*gl_Vertex;}", |
| 13 | b);c=e("precision highp float;uniform mat3 gl_NormalMatrix;uniform mat4 gl_ModelViewMatrix;uniform mat4 gl_ProjectionMatrix;uniform mat4 gl_ModelViewProjectionMatrix;uniform mat4 gl_ModelViewMatrixInverse;uniform mat4 gl_ProjectionMatrixInverse;uniform mat4 gl_ModelViewProjectionMatrixInverse;",c);this.program=d.createProgram();d.attachShader(this.program,f(d.VERTEX_SHADER,b));d.attachShader(this.program,f(d.FRAGMENT_SHADER,c));d.linkProgram(this.program);if(!d.getProgramParameter(this.program, |