dummy/js/shader/fss.min.js

//============================================================
//
// Copyright (C) 2013 Matthew Wagerfield
//
// Twitter: https://twitter.com/mwagerfield
//
// 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.
//
//============================================================
FSS={FRONT:0,BACK:1,DOUBLE:2,SVGNS:"http://www.w3.org/2000/svg"},FSS.Array="function"==typeof Float32Array?Float32Array:Array,FSS.Utils={isNumber:function(t){return!isNaN(parseFloat(t))&&isFinite(t)}},function(){for(var t=0,e=["ms","moz","webkit","o"],i=0;e.length>i&&!window.requestAnimationFrame;++i)window.requestAnimationFrame=window[e[i]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[e[i]+"CancelAnimationFrame"]||window[e[i]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(e){var i=(new Date).getTime(),r=Math.max(0,16-(i-t)),s=window.setTimeout(function(){e(i+r)},r);return t=i+r,s}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(t){clearTimeout(t)})}(),Math.PIM2=2*Math.PI,Math.PID2=Math.PI/2,Math.randomInRange=function(t,e){return t+(e-t)*Math.random()},Math.clamp=function(t,e,i){return t=Math.max(t,e),t=Math.min(t,i)},FSS.Vector3={create:function(t,e,i){var r=new FSS.Array(3);return this.set(r,t,e,i),r},clone:function(t){var e=this.create();return this.copy(e,t),e},set:function(t,e,i,r){return t[0]=e||0,t[1]=i||0,t[2]=r||0,this},setX:function(t,e){return t[0]=e||0,this},setY:function(t,e){return t[1]=e||0,this},setZ:function(t,e){return t[2]=e||0,this},copy:function(t,e){return t[0]=e[0],t[1]=e[1],t[2]=e[2],this},add:function(t,e){return t[0]+=e[0],t[1]+=e[1],t[2]+=e[2],this},addVectors:function(t,e,i){return t[0]=e[0]+i[0],t[1]=e[1]+i[1],t[2]=e[2]+i[2],this},addScalar:function(t,e){return t[0]+=e,t[1]+=e,t[2]+=e,this},subtract:function(t,e){return t[0]-=e[0],t[1]-=e[1],t[2]-=e[2],this},subtractVectors:function(t,e,i){return t[0]=e[0]-i[0],t[1]=e[1]-i[1],t[2]=e[2]-i[2],this},subtractScalar:function(t,e){return t[0]-=e,t[1]-=e,t[2]-=e,this},multiply:function(t,e){return t[0]*=e[0],t[1]*=e[1],t[2]*=e[2],this},multiplyVectors:function(t,e,i){return t[0]=e[0]*i[0],t[1]=e[1]*i[1],t[2]=e[2]*i[2],this},multiplyScalar:function(t,e){return t[0]*=e,t[1]*=e,t[2]*=e,this},divide:function(t,e){return t[0]/=e[0],t[1]/=e[1],t[2]/=e[2],this},divideVectors:function(t,e,i){return t[0]=e[0]/i[0],t[1]=e[1]/i[1],t[2]=e[2]/i[2],this},divideScalar:function(t,e){return 0!==e?(t[0]/=e,t[1]/=e,t[2]/=e):(t[0]=0,t[1]=0,t[2]=0),this},cross:function(t,e){var i=t[0],r=t[1],s=t[2];return t[0]=r*e[2]-s*e[1],t[1]=s*e[0]-i*e[2],t[2]=i*e[1]-r*e[0],this},crossVectors:function(t,e,i){return t[0]=e[1]*i[2]-e[2]*i[1],t[1]=e[2]*i[0]-e[0]*i[2],t[2]=e[0]*i[1]-e[1]*i[0],this},min:function(t,e){return e>t[0]&&(t[0]=e),e>t[1]&&(t[1]=e),e>t[2]&&(t[2]=e),this},max:function(t,e){return t[0]>e&&(t[0]=e),t[1]>e&&(t[1]=e),t[2]>e&&(t[2]=e),this},clamp:function(t,e,i){return this.min(t,e),this.max(t,i),this},limit:function(t,e,i){var r=this.length(t);return null!==e&&e>r?this.setLength(t,e):null!==i&&r>i&&this.setLength(t,i),this},dot:function(t,e){return t[0]*e[0]+t[1]*e[1]+t[2]*e[2]},normalise:function(t){return this.divideScalar(t,this.length(t))},negate:function(t){return this.multiplyScalar(t,-1)},distanceSquared:function(t,e){var i=t[0]-e[0],r=t[1]-e[1],s=t[2]-e[2];return i*i+r*r+s*s},distance:function(t,e){return Math.sqrt(this.distanceSquared(t,e))},lengthSquared:function(t){return t[0]*t[0]+t[1]*t[1]+t[2]*t[2]},length:function(t){return Math.sqrt(this.lengthSquared(t))},setLength:function(t,e){var i=this.length(t);return 0!==i&&e!==i&&this.multiplyScalar(t,e/i),this}},FSS.Vector4={create:function(t,e,i){var r=new FSS.Array(4);return this.set(r,t,e,i),r},set:function(t,e,i,r,s){return t[0]=e||0,t[1]=i||0,t[2]=r||0,t[3]=s||0,this},setX:function(t,e){return t[0]=e||0,this},setY:function(t,e){return t[1]=e||0,this},setZ:function(t,e){return t[2]=e||0,this},setW:function(t,e){return t[3]=e||0,this},add:function(t,e){return t[0]+=e[0],t[1]+=e[1],t[2]+=e[2],t[3]+=e[3],this},multiplyVectors:function(t,e,i){return t[0]=e[0]*i[0],t[1]=e[1]*i[1],t[2]=e[2]*i[2],t[3]=e[3]*i[3],this},multiplyScalar:function(t,e){return t[0]*=e,t[1]*=e,t[2]*=e,t[3]*=e,this},min:function(t,e){return e>t[0]&&(t[0]=e),e>t[1]&&(t[1]=e),e>t[2]&&(t[2]=e),e>t[3]&&(t[3]=e),this},max:function(t,e){return t[0]>e&&(t[0]