var LightwardAura=function(){"use strict";
/*! *****************************************************************************
    Copyright (c) Microsoft Corporation.

    Permission to use, copy, modify, and/or distribute this software for any
    purpose with or without fee is hereby granted.

    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
    REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
    AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
    INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
    LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
    OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
    PERFORMANCE OF THIS SOFTWARE.
    ***************************************************************************** */function n(n,e,t){if(t||2===arguments.length)for(var r,o=0,i=e.length;o<i;o++)!r&&o in e||(r||(r=Array.prototype.slice.call(e,0,o)),r[o]=e[o]);return n.concat(r||Array.prototype.slice.call(e))}var e="undefined"!=typeof globalThis?globalThis:"undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:{},t={exports:{}};(function(n,e,t){function r(n){var e,t=this,r=(e=4022871197,function(n){n=String(n);for(var t=0;t<n.length;t++){var r=.02519603282416938*(e+=n.charCodeAt(t));r-=e=r>>>0,e=(r*=e)>>>0,e+=4294967296*(r-=e)}return 2.3283064365386963e-10*(e>>>0)});t.next=function(){var n=2091639*t.s0+2.3283064365386963e-10*t.c;return t.s0=t.s1,t.s1=t.s2,t.s2=n-(t.c=0|n)},t.c=1,t.s0=r(" "),t.s1=r(" "),t.s2=r(" "),t.s0-=r(n),t.s0<0&&(t.s0+=1),t.s1-=r(n),t.s1<0&&(t.s1+=1),t.s2-=r(n),t.s2<0&&(t.s2+=1),r=null}function o(n,e){return e.c=n.c,e.s0=n.s0,e.s1=n.s1,e.s2=n.s2,e}function 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(( 1.055 * pow( v.r, ( 1.0 / 2.4 ))) - 0.055 ) : 12.92 * v.r;\n    r.y = ( v.g > 0.0031308 ) ? (( 1.055 * pow( v.g, ( 1.0 / 2.4 ))) - 0.055 ) : 12.92 * v.g;\n    r.z = ( v.b > 0.0031308 ) ? (( 1.055 * pow( v.b, ( 1.0 / 2.4 ))) - 0.055 ) : 12.92 * v.b;\n    return r;\n}\n\nvec3 rgb2xyz( vec3 c ) {\n    vec3 tmp;\n    tmp.x = ( c.r > 0.04045 ) ? pow( ( c.r + 0.055 ) / 1.055, 2.4 ) : c.r / 12.92;\n    tmp.y = ( c.g > 0.04045 ) ? pow( ( c.g + 0.055 ) / 1.055, 2.4 ) : c.g / 12.92,\n    tmp.z = ( c.b > 0.04045 ) ? pow( ( c.b + 0.055 ) / 1.055, 2.4 ) : c.b / 12.92;\n    return 100.0 * tmp *\n        mat3( 0.4124, 0.3576, 0.1805,\n              0.2126, 0.7152, 0.0722,\n              0.0193, 0.1192, 0.9505 );\n}\n\nvec3 xyz2lab( vec3 c ) {\n    vec3 n = c / vec3( 95.047, 100, 108.883 );\n    vec3 v;\n    v.x = ( n.x > 0.008856 ) ? pow( n.x, 1.0 / 3.0 ) : ( 7.787 * n.x ) + ( 16.0 / 116.0 );\n    v.y = ( n.y > 0.008856 ) ? pow( n.y, 1.0 / 3.0 ) : ( 7.787 * n.y ) + ( 16.0 / 116.0 );\n    v.z = ( n.z > 0.008856 ) ? pow( n.z, 1.0 / 3.0 ) : ( 7.787 * n.z ) + ( 16.0 / 116.0 );\n    return vec3(( 116.0 * v.y ) - 16.0, 500.0 * ( v.x - v.y ), 200.0 * ( v.y - v.z ));\n}\n\nvec3 rgb2lab(vec3 c) {\n    vec3 lab = xyz2lab( rgb2xyz( c ) );\n    return vec3( lab.x / 100.0, 0.5 + 0.5 * ( lab.y / 127.0 ), 0.5 + 0.5 * ( lab.z / 127.0 ));\n}\n\nvec3 lab2rgb(vec3 c) {\n    return xyz2rgb( lab2xyz( vec3(100.0 * c.x, 2.0 * 127.0 * (c.y - 0.5), 2.0 * 127.0 * (c.z - 0.5)) ) );\n}\n\nvec3 lab2rgb2(vec3 c)\n{\n    float l = c.r;\n    float a = c.g;\n    float b = c.b;\n\n    vec3 rgb = vec3(0.);\n\n    float y = (l+16.)/116.;\n    float x = a/500. + y;\n    float z = y - b/200.;\n\n    y = pow(y, 3.) > 0.008856 ? pow(y,3.) : (y-16./116.)/7.787;\n    x = pow(x, 3.) > 0.008856 ? pow(x,3.) : (x-16./116.)/7.787;\n    z = pow(z, 3.) > 0.008856 ? pow(z,3.) : (z-16./116.)/7.787;\n\n    x *= 95.047;\n    y *= 100.;\n    z *= 108.883;\n\n    x /= 100.;\n    y /= 100.;\n    z /= 100.;\n\n    float R = x *  3.2406 + y * -1.5372 + z * -0.4986;\n    float G = x * -0.9689 + y *  1.8758 + z *  0.0415;\n    float B = x *  0.0557 + y * -0.2040 + z *  1.0570;\n\n    R = R > 0.0031308 ? 1.055 * pow(R , ( 1. / 2.4 ))  - 0.055 : 12.92 * R;\n    G = G > 0.0031308 ? 1.055 * pow(G , ( 1. / 2.4 ))  - 0.055 : 12.92 * G;\n    B = B > 0.0031308 ? 1.055 * pow(B , ( 1. / 2.4 ))  - 0.055 : 12.92 * B;\n\n    return vec3(R, G, B);\n\n}\n\nvec3 oklab_mix_2(vec3 colA, vec3 colB, float h)\n{\n    return lab2rgb(mix(rgb2lab(colA), rgb2lab(colB), h));\n}\n\n// See here: https://www.shadertoy.com/view/ttcyRS\nvec3 oklab_mix( vec3 colA, vec3 colB, float h )\n{\n    // https://bottosson.github.io/posts/oklab\n    const mat3 kCONEtoLMS = mat3(\n         0.4121656120,  0.2118591070,  0.0883097947,\n         0.5362752080,  0.6807189584,  0.2818474174,\n         0.0514575653,  0.1074065790,  0.6302613616);\n    const mat3 kLMStoCONE = mat3(\n         4.0767245293, -1.2681437731, -0.0041119885,\n        -3.3072168827,  2.6093323231, -0.7034763098,\n         0.2307590544, -0.3411344290,  1.7068625689);\n\n    // rgb to cone (arg of pow can't be negative)\n    vec3 lmsA = pow( kCONEtoLMS*colA, vec3(1.0/3.0) );\n    vec3 lmsB = pow( kCONEtoLMS*colB, vec3(1.0/3.0) );\n    // lerp\n    vec3 lms = mix( lmsA, lmsB, h );\n    // gain in the middle (no oaklab anymore, but looks better?)\n lms *= 1.0+0.2*h*(1.0-h);\n    // cone to rgb\n    return kLMStoCONE*(lms*lms*lms);\n}\n#endif\n`}\nconst int MAX_COLORS = 10;\n\nuniform vec2 resolution;\nuniform vec3 color1;\nuniform vec3 color2;\nuniform vec3 color3;\nuniform vec3 color4;\nuniform vec3 color5;\n\nuniform vec3 colors[MAX_COLORS];\n\nuniform int numColors;\n\nin vec4 fragUV;\nout vec4 FragColor;\n\nvoid main() {\n    vec2 uv = gl_FragCoord.xy / resolution;\n    uv.x += .001*rand(uv);\n\n    vec3 c1 = color1 / vec3(255.0);\n    vec3 c2 = color2 / vec3(255.0);\n    vec3 c3 = color3 / vec3(255.);\n    vec3 c4 = color4 / vec3(255.);\n    vec3 c5 = color5 / vec3(255.);\n\n    vec3 lab1 = rgb2lab(colors[0]/255.);\n    vec3 lab2 = rgb2lab(colors[1]/255.);\n    vec3 lab3 = rgb2lab(c3);\n    vec3 lab4 = rgb2lab(c4);\n    vec3 lab5 = rgb2lab(c5);\n\n    float nCol= float(numColors);\n    float step = 1./(nCol-1.);\n\n\n\n    // vec3 labOut = oklab_mix(lab1, lab2, linearstep(0.*step, 1.*step, uv.x));\n    float dither = rand(uv)*.001;\n    vec3 col = mix(rgb2lab(colors[0]/255.), rgb2lab(colors[1]/255.), linearstep(0.*step, 1.*step, uv.x + dither));\n\n    for(int i = 2; i < MAX_COLORS; i++)\n    {\n        // break early when done\n        if(i >= numColors) break;\n\n        vec3 nextLab = rgb2lab(colors[i]/255.);\n\n        col = mix(col, nextLab, linearstep(float(i-1)*step, float(i)*step, uv.x)+ dither);\n    }\n\n    col = lab2rgb(col);\n    // linear to gamma\n    col = pow( col, vec3(0.4545) );\n\n\n    FragColor.rgb = (col);\n}\n`,Pn="\n#version 300 es\n\nin vec4 position;\nin vec2 texCoord;\n\n\nout vec4 fragUV;\n\nvoid main() {\n  gl_Position =  position;\n\n  vec2 uv = position.xy;\n  uv = position.xy * 0.5 + 0.5;\n//   uv = vec2(position.x ,0.);\n// uv = position.xy;\n// uv = texCoord;\nuv = vec2(1.,0.);\n  fragUV = vec4(uv, 0., 0.);\n}\n",En="\n#ifndef saturate\n#define saturate(v) clamp(v, 0., 1.)\n#endif\n",Sn=`\n#version 300 es\n\n#if __VERSION__ > 130\n#define texture2D texture\n#endif\n\nprecision mediump float;\n\n${`\n\n#ifndef SHAPES_GLSL\n#define SHAPES_GLSL\n\nfloat dot2( in vec2 v ) { return dot(v,v); }\nfloat ndot(vec2 a, vec2 b ) { return a.x*b.x - a.y*b.y; }\n\n#define PI 3.14159265358979323846\n#define TWOPI 2.*PI\n#define RAD2DEG (180.0/PI)\n#define DEG2RAD (PI/180.)\n\nfloat sminCubic( float a, float b, float k )\n{\n    float h = max( k-abs(a-b), 0.0 )/k;\n    return min( a, b ) - h*h*h*k*(1.0/6.0);\n}\n\nfloat sdCircle( vec2 p, float r )\n{\n    return length(p) - r;\n}\n\nfloat sdRoundedBox( in vec2 p, in vec2 b, in vec4 r )\n{\n    r.xy = (p.x>0.0)?r.xy : r.zw;\n    r.x  = (p.y>0.0)?r.x  : r.y;\n    vec2 q = abs(p)-b+r.x;\n    return min(max(q.x,q.y),0.0) + length(max(q,0.0)) - r.x;\n}\n\nfloat sdBox( in vec2 p, in vec2 b )\n{\n    vec2 d = abs(p)-b;\n    return length(max(d,0.0)) + min(max(d.x,d.y),0.0);\n}\n\nfloat sdOrientedBox( in vec2 p, in vec2 a, in vec2 b, float th )\n{\n    float l = length(b-a);\n    vec2  d = (b-a)/l;\n    vec2  q = (p-(a+b)*0.5);\n          q = mat2(d.x,-d.y,d.y,d.x)*q;\n          q = abs(q)-vec2(l,th)*0.5;\n    return length(max(q,0.0)) + min(max(q.x,q.y),0.0);\n}\n\nfloat sdEquilateralTriangle( in vec2 p )\n{\n    const float k = sqrt(3.0);\n    p.x = abs(p.x) - 1.0;\n    p.y = p.y + 1.0/k;\n    if( p.x+k*p.y>0.0 ) p = vec2(p.x-k*p.y,-k*p.x-p.y)/2.0;\n    p.x -= clamp( p.x, -2.0, 0.0 );\n    return -length(p)*sign(p.y);\n}\n\nfloat sdRhombus( in vec2 p, in vec2 b )\n{\n    p = abs(p);\n    float h = clamp( ndot(b-2.0*p,b)/dot(b,b), -1.0, 1.0 );\n    float d = length( p-0.5*b*vec2(1.0-h,1.0+h) );\n    return d * sign( p.x*b.y + p.y*b.x - b.x*b.y );\n}\n\nfloat sdTrapezoid( in vec2 p, in float r1, float r2, float he )\n{\n    vec2 k1 = vec2(r2,he);\n    vec2 k2 = vec2(r2-r1,2.0*he);\n    p.x = abs(p.x);\n    vec2 ca = vec2(p.x-min(p.x,(p.y<0.0)?r1:r2), abs(p.y)-he);\n    vec2 cb = p - k1 + k2*clamp( dot(k1-p,k2)/dot2(k2), 0.0, 1.0 );\n    float s = (cb.x<0.0 && ca.y<0.0) ? -1.0 : 1.0;\n    return s*sqrt( min(dot2(ca),dot2(cb)) );\n}\n\nfloat sdParallelogram( in vec2 p, float wi, float he, float sk )\n{\n    vec2 e = vec2(sk,he);\n    p = (p.y<0.0)?-p:p;\n    vec2  w = p - e; w.x -= clamp(w.x,-wi,wi);\n    vec2  d = vec2(dot(w,w), -w.y);\n    float s = p.x*e.y - p.y*e.x;\n    p = (s<0.0)?-p:p;\n    vec2  v = p - vec2(wi,0); v -= e*clamp(dot(v,e)/dot(e,e),-1.0,1.0);\n    d = min( d, vec2(dot(v,v), wi*he-abs(s)));\n    return sqrt(d.x)*sign(-d.y);\n}\n\nvec2 translate(vec2 p, vec2 t)\n{\n\treturn p - t;\n}\n\nvec3 translate(vec3 p, vec3 t)\n{\n    return p - t;\n}\n\nvec2 scale(vec2 p, float zoom)\n{\n    p *= zoom;\n    return p;\n}\n\nvec2 scale(vec2 p, vec2 origin, float zoom)\n{\n    p -= origin;\n    p *= zoom;\n    p += origin;\n\n    return p;\n}\n\nvec2 rotate(vec2 p, float a)\n{\n    mat2 m = mat2(cos(a),sin(a),-sin(a),cos(a));\n    return p*m;\n}\n\nvec2 rotate(vec2 p, vec2 origin, float a)\n{\n    p -= origin;\n    mat2 m = mat2(cos(a),sin(a),-sin(a),cos(a));\n    return p*m + origin;\n}\n\n#endif\n\n${An}\n//\n// Description : Array and textureless GLSL 2D/3D/4D simplex\n//               noise functions.\n//      Author : Ian McEwan, Ashima Arts.\n//  Maintainer : stegu\n//     Lastmod : 20201014 (stegu)\n//     License : Copyright (C) 2011 Ashima Arts. All rights reserved.\n//               Distributed under the MIT License. See LICENSE file.\n//               https://github.com/ashima/webgl-noise\n//               https://github.com/stegu/webgl-noise\n//\n\n#ifndef MOD289_3\n#define MOD289_3\nvec3 mod289(vec3 x) {\n  return x - floor(x * (1.0 / 289.0)) * 289.0;\n}\n#endif\n\n#ifndef MOD289_4\n#define MOD289_4\nvec4 mod289(vec4 x) {\n  return x - floor(x * (1.0 / 289.0)) * 289.0;\n}\n#endif\n\n#ifndef PERMUTE_4\n#define PERMUTE_4\nvec4 permute(vec4 x) {\n     return mod289(((x*34.0)+10.0)*x);\n}\n#endif\n\n#ifndef TAYLORINVSQRT\n#define TAYLORINVSQRT\nvec4 taylorInvSqrt(vec4 r)\n{\n  return 1.79284291400159 - 0.85373472095314 * r;\n}\n#endif\n\nfloat snoise(vec3 v, out vec3 gradient)\n{\n  const vec2  C = vec2(1.0/6.0, 1.0/3.0) ;\n  const vec4  D = vec4(0.0, 0.5, 1.0, 2.0);\n\n// First corner\n  vec3 i  = floor(v + dot(v, C.yyy) );\n  vec3 x0 =   v - i + dot(i, C.xxx) ;\n\n// Other corners\n  vec3 g = step(x0.yzx, x0.xyz);\n  vec3 l = 1.0 - g;\n  vec3 i1 = min( g.xyz, l.zxy );\n  vec3 i2 = max( g.xyz, l.zxy );\n\n  //   x0 = x0 - 0.0 + 0.0 * C.xxx;\n  //   x1 = x0 - i1  + 1.0 * C.xxx;\n  //   x2 = x0 - i2  + 2.0 * C.xxx;\n  //   x3 = x0 - 1.0 + 3.0 * C.xxx;\n  vec3 x1 = x0 - i1 + C.xxx;\n  vec3 x2 = x0 - i2 + C.yyy; // 2.0*C.x = 1/3 = C.y\n  vec3 x3 = x0 - D.yyy;      // -1.0+3.0*C.x = -0.5 = -D.y\n\n// Permutations\n  i = mod289(i);\n  vec4 p = permute( permute( permute(\n             i.z + vec4(0.0, i1.z, i2.z, 1.0 ))\n           + i.y + vec4(0.0, i1.y, i2.y, 1.0 ))\n           + i.x + vec4(0.0, i1.x, i2.x, 1.0 ));\n\n// Gradients: 7x7 points over a square, mapped onto an octahedron.\n// The ring size 17*17 = 289 is close to a multiple of 49 (49*6 = 294)\n  float n_ = 0.142857142857; // 1.0/7.0\n  vec3  ns = n_ * D.wyz - D.xzx;\n\n  vec4 j = p - 49.0 * floor(p * ns.z * ns.z);  //  mod(p,7*7)\n\n  vec4 x_ = floor(j * ns.z);\n  vec4 y_ = floor(j - 7.0 * x_ );    // mod(j,N)\n\n  vec4 x = x_ *ns.x + ns.yyyy;\n  vec4 y = y_ *ns.x + ns.yyyy;\n  vec4 h = 1.0 - abs(x) - abs(y);\n\n  vec4 b0 = vec4( x.xy, y.xy );\n  vec4 b1 = vec4( x.zw, y.zw );\n\n  //vec4 s0 = vec4(lessThan(b0,0.0))*2.0 - 1.0;\n  //vec4 s1 = vec4(lessThan(b1,0.0))*2.0 - 1.0;\n  vec4 s0 = floor(b0)*2.0 + 1.0;\n  vec4 s1 = floor(b1)*2.0 + 1.0;\n  vec4 sh = -step(h, vec4(0.0));\n\n  vec4 a0 = b0.xzyw + s0.xzyw*sh.xxyy ;\n  vec4 a1 = b1.xzyw + s1.xzyw*sh.zzww ;\n\n  vec3 p0 = vec3(a0.xy,h.x);\n  vec3 p1 = vec3(a0.zw,h.y);\n  vec3 p2 = vec3(a1.xy,h.z);\n  vec3 p3 = vec3(a1.zw,h.w);\n\n//Normalise gradients\n  vec4 norm = taylorInvSqrt(vec4(dot(p0,p0), dot(p1,p1), dot(p2, p2), dot(p3,p3)));\n  p0 *= norm.x;\n  p1 *= norm.y;\n  p2 *= norm.z;\n  p3 *= norm.w;\n\n// Mix final noise value\n  vec4 m = max(0.5 - vec4(dot(x0,x0), dot(x1,x1), dot(x2,x2), dot(x3,x3)), 0.0);\n  vec4 m2 = m * m;\n  vec4 m4 = m2 * m2;\n  vec4 pdotx = vec4(dot(p0,x0), dot(p1,x1), dot(p2,x2), dot(p3,x3));\n\n// Determine noise gradient\n  vec4 temp = m2 * m * pdotx;\n  gradient = -8.0 * (temp.x * x0 + temp.y * x1 + temp.z * x2 + temp.w * x3);\n  gradient += m4.x * p0 + m4.y * p1 + m4.z * p2 + m4.w * p3;\n  gradient *= 105.0;\n\n  return 105.0 * dot(m4, pdotx);\n}\n\n\n//\n// Description : Array and textureless GLSL 2D/3D/4D simplex\n//               noise functions.\n//      Author : Ian McEwan, Ashima Arts.\n//  Maintainer : stegu\n//     Lastmod : 20201014 (stegu)\n//     License : Copyright (C) 2011 Ashima Arts. All rights reserved.\n//               Distributed under the MIT License. See LICENSE file.\n//               https://github.com/ashima/webgl-noise\n//               https://github.com/stegu/webgl-noise\n//\n\n#ifndef MOD289_3\n#define MOD289_3\nvec3 mod289(vec3 x) {\n  return x - floor(x * (1.0 / 289.0)) * 289.0;\n}\n#endif\n\n#ifndef MOD289_4\n#define MOD289_4\nvec4 mod289(vec4 x) {\n  return x - floor(x * (1.0 / 289.0)) * 289.0;\n}\n#endif\n\n#ifndef PERMUTE_4\n#define PERMUTE_4\nvec4 permute(vec4 x) {\n     return mod289(((x*34.0)+10.0)*x);\n}\n#endif\n\n#ifndef TAYLORINVSQRT\n#define TAYLORINVSQRT\nvec4 taylorInvSqrt(vec4 r)\n{\n  return 1.79284291400159 - 0.85373472095314 * r;\n}\n#endif\n\nfloat snoise(vec3 v)\n  {\n  const vec2  C = vec2(1.0/6.0, 1.0/3.0) ;\n  const vec4  D = vec4(0.0, 0.5, 1.0, 2.0);\n\n// First corner\n  vec3 i  = floor(v + dot(v, C.yyy) );\n  vec3 x0 =   v - i + dot(i, C.xxx) ;\n\n// Other corners\n  vec3 g = step(x0.yzx, x0.xyz);\n  vec3 l = 1.0 - g;\n  vec3 i1 = min( g.xyz, l.zxy );\n  vec3 i2 = max( g.xyz, l.zxy );\n\n  //   x0 = x0 - 0.0 + 0.0 * C.xxx;\n  //   x1 = x0 - i1  + 1.0 * C.xxx;\n  //   x2 = x0 - i2  + 2.0 * C.xxx;\n  //   x3 = x0 - 1.0 + 3.0 * C.xxx;\n  vec3 x1 = x0 - i1 + C.xxx;\n  vec3 x2 = x0 - i2 + C.yyy; // 2.0*C.x = 1/3 = C.y\n  vec3 x3 = x0 - D.yyy;      // -1.0+3.0*C.x = -0.5 = -D.y\n\n// Permutations\n  i = mod289(i);\n  vec4 p = permute( permute( permute(\n             i.z + vec4(0.0, i1.z, i2.z, 1.0 ))\n           + i.y + vec4(0.0, i1.y, i2.y, 1.0 ))\n           + i.x + vec4(0.0, i1.x, i2.x, 1.0 ));\n\n// Gradients: 7x7 points over a square, mapped onto an octahedron.\n// The ring size 17*17 = 289 is close to a multiple of 49 (49*6 = 294)\n  float n_ = 0.142857142857; // 1.0/7.0\n  vec3  ns = n_ * D.wyz - D.xzx;\n\n  vec4 j = p - 49.0 * floor(p * ns.z * ns.z);  //  mod(p,7*7)\n\n  vec4 x_ = floor(j * ns.z);\n  vec4 y_ = floor(j - 7.0 * x_ );    // mod(j,N)\n\n  vec4 x = x_ *ns.x + ns.yyyy;\n  vec4 y = y_ *ns.x + ns.yyyy;\n  vec4 h = 1.0 - abs(x) - abs(y);\n\n  vec4 b0 = vec4( x.xy, y.xy );\n  vec4 b1 = vec4( x.zw, y.zw );\n\n  //vec4 s0 = vec4(lessThan(b0,0.0))*2.0 - 1.0;\n  //vec4 s1 = vec4(lessThan(b1,0.0))*2.0 - 1.0;\n  vec4 s0 = floor(b0)*2.0 + 1.0;\n  vec4 s1 = floor(b1)*2.0 + 1.0;\n  vec4 sh = -step(h, vec4(0.0));\n\n  vec4 a0 = b0.xzyw + s0.xzyw*sh.xxyy ;\n  vec4 a1 = b1.xzyw + s1.xzyw*sh.zzww ;\n\n  vec3 p0 = vec3(a0.xy,h.x);\n  vec3 p1 = vec3(a0.zw,h.y);\n  vec3 p2 = vec3(a1.xy,h.z);\n  vec3 p3 = vec3(a1.zw,h.w);\n\n//Normalise gradients\n  vec4 norm = taylorInvSqrt(vec4(dot(p0,p0), dot(p1,p1), dot(p2, p2), dot(p3,p3)));\n  p0 *= norm.x;\n  p1 *= norm.y;\n  p2 *= norm.z;\n  p3 *= norm.w;\n\n// Mix final noise value\n  vec4 m = max(0.5 - vec4(dot(x0,x0), dot(x1,x1), dot(x2,x2), dot(x3,x3)), 0.0);\n  m = m * m;\n  return 105.0 * dot( m*m, vec4( dot(p0,x0), dot(p1,x1),\n                                dot(p2,x2), dot(p3,x3) ) );\n  }\n  \n${En}\n\n// #version 120\n\n// Cellular noise ("Worley noise") in 3D in GLSL.\n// Copyright (c) Stefan Gustavson 2011-04-19. All rights reserved.\n// This code is released under the conditions of the MIT license.\n// See LICENSE file for details.\n// https://github.com/stegu/webgl-noise\n\n#ifndef MOD289_3\n#define MOD289_3\n// Modulo 289 without a division (only multiplications)\nvec3 mod289(vec3 x) {\n  return x - floor(x * (1.0 / 289.0)) * 289.0;\n}\n#endif\n\n#ifndef MOD289_4\n#define MOD289_4\nvec4 mod289(vec4 x) {\n  return x - floor(x * (1.0 / 289.0)) * 289.0;\n}\n#endif\n\n#ifndef MOD7_4\n#define MOD7_4\n// Modulo 7 without a division\nvec4 mod7(vec4 x) {\n  return x - floor(x * (1.0 / 7.0)) * 7.0;\n}\n#endif\n\n#ifndef PERMUTE_3\n#define PERMUTE_3\n// Permutation polynomial: (34x^2 + 6x) mod 289\nvec3 permute(vec3 x) {\n  return mod289((34.0 * x + 10.0) * x);\n}\n#endif\n\n#ifndef PERMUTE_4\n#define PERMUTE_4\nvec4 permute(vec4 x) {\n  return mod289((34.0 * x + 10.0) * x);\n}\n#endif\n\n// Cellular noise, returning F1 and F2 in a vec2.\n// Speeded up by using 2x2x2 search window instead of 3x3x3,\n// at the expense of some pattern artifacts.\n// F2 is often wrong and has sharp discontinuities.\n// If you need a good F2, use the slower 3x3x3 version.\nvec2 cellular2x2x2(vec3 P) {\n#define K 0.142857142857 // 1/7\n#define Ko 0.428571428571 // 1/2-K/2\n#define K2 0.020408163265306 // 1/(7*7)\n#define Kz 0.166666666667 // 1/6\n#define Kzo 0.416666666667 // 1/2-1/6*2\n#define jitter 0.8 // smaller jitter gives less errors in F2\n\tvec3 Pi = mod289(floor(P));\n \tvec3 Pf = fract(P);\n\tvec4 Pfx = Pf.x + vec4(0.0, -1.0, 0.0, -1.0);\n\tvec4 Pfy = Pf.y + vec4(0.0, 0.0, -1.0, -1.0);\n\tvec4 p = permute(Pi.x + vec4(0.0, 1.0, 0.0, 1.0));\n\tp = permute(p + Pi.y + vec4(0.0, 0.0, 1.0, 1.0));\n\tvec4 p1 = permute(p + Pi.z); // z+0\n\tvec4 p2 = permute(p + Pi.z + vec4(1.0)); // z+1\n\tvec4 ox1 = fract(p1*K) - Ko;\n\tvec4 oy1 = mod7(floor(p1*K))*K - Ko;\n\tvec4 oz1 = floor(p1*K2)*Kz - Kzo; // p1 < 289 guaranteed\n\tvec4 ox2 = fract(p2*K) - Ko;\n\tvec4 oy2 = mod7(floor(p2*K))*K - Ko;\n\tvec4 oz2 = floor(p2*K2)*Kz - Kzo;\n\tvec4 dx1 = Pfx + jitter*ox1;\n\tvec4 dy1 = Pfy + jitter*oy1;\n\tvec4 dz1 = Pf.z + jitter*oz1;\n\tvec4 dx2 = Pfx + jitter*ox2;\n\tvec4 dy2 = Pfy + jitter*oy2;\n\tvec4 dz2 = Pf.z - 1.0 + jitter*oz2;\n\tvec4 d1 = dx1 * dx1 + dy1 * dy1 + dz1 * dz1; // z+0\n\tvec4 d2 = dx2 * dx2 + dy2 * dy2 + dz2 * dz2; // z+1\n\n\t// Sort out the two smallest distances (F1, F2)\n#if 0\n\t// Cheat and sort out only F1\n\td1 = min(d1, d2);\n\td1.xy = min(d1.xy, d1.wz);\n\td1.x = min(d1.x, d1.y);\n\treturn vec2(sqrt(d1.x));\n#else\n\t// Do it right and sort out both F1 and F2\n\tvec4 d = min(d1,d2); // F1 is now in d\n\td2 = max(d1,d2); // Make sure we keep all candidates for F2\n\td.xy = (d.x < d.y) ? d.xy : d.yx; // Swap smallest to d.x\n\td.xz = (d.x < d.z) ? d.xz : d.zx;\n\td.xw = (d.x < d.w) ? d.xw : d.wx; // F1 is now in d.x\n\td.yzw = min(d.yzw, d2.yzw); // F2 now not in d2.yzw\n\td.y = min(d.y, d.z); // nor in d.z\n\td.y = min(d.y, d.w); // nor in d.w\n\td.y = min(d.y, d2.x); // F2 is now in d.y\n\treturn sqrt(d.xy); // F1 and F2\n#endif\n}\n\n\n// #version 120\n\n// Cellular noise ("Worley noise") in 3D in GLSL.\n// Copyright (c) Stefan Gustavson 2011-04-19. All rights reserved.\n// This code is released under the conditions of the MIT license.\n// See LICENSE file for details.\n// https://github.com/stegu/webgl-noise\n\n#ifndef MOD289_3\n#define MOD289_3\n// Modulo 289 without a division (only multiplications)\nvec3 mod289(vec3 x) {\n  return x - floor(x * (1.0 / 289.0)) * 289.0;\n}\n#endif\n\n#ifndef MOD7_3\n#define MOD7_3\n// Modulo 7 without a division\nvec3 mod7(vec3 x) {\n  return x - floor(x * (1.0 / 7.0)) * 7.0;\n}\n#endif\n\n#ifndef PERMUTE_3\n#define PERMUTE_3\n// Permutation polynomial: (34x^2 + 6x) mod 289\nvec3 permute(vec3 x) {\n  return mod289((34.0 * x + 10.0) * x);\n}\n#endif\n\n// Cellular noise, returning F1 and F2 in a vec2.\n// 3x3x3 search region for good F2 everywhere, but a lot\n// slower than the 2x2x2 version.\n// The code below is a bit scary even to its author,\n// but it has at least half decent performance on a\n// modern GPU. In any case, it beats any software\n// implementation of Worley noise hands down.\n\nvec2 cellular(vec3 P) {\n#define K 0.142857142857 // 1/7\n#define Ko 0.428571428571 // 1/2-K/2\n#define K2 0.020408163265306 // 1/(7*7)\n#define Kz 0.166666666667 // 1/6\n#define Kzo 0.416666666667 // 1/2-1/6*2\n#define jitter_cell_noise 1.0 // smaller jitter_cell_noise gives more regular pattern\n\n\tvec3 Pi = mod289(floor(P));\n \tvec3 Pf = fract(P) - 0.5;\n\n\tvec3 Pfx = Pf.x + vec3(1.0, 0.0, -1.0);\n\tvec3 Pfy = Pf.y + vec3(1.0, 0.0, -1.0);\n\tvec3 Pfz = Pf.z + vec3(1.0, 0.0, -1.0);\n\n\tvec3 p = permute(Pi.x + vec3(-1.0, 0.0, 1.0));\n\tvec3 p1 = permute(p + Pi.y - 1.0);\n\tvec3 p2 = permute(p + Pi.y);\n\tvec3 p3 = permute(p + Pi.y + 1.0);\n\n\tvec3 p11 = permute(p1 + Pi.z - 1.0);\n\tvec3 p12 = permute(p1 + Pi.z);\n\tvec3 p13 = permute(p1 + Pi.z + 1.0);\n\n\tvec3 p21 = permute(p2 + Pi.z - 1.0);\n\tvec3 p22 = permute(p2 + Pi.z);\n\tvec3 p23 = permute(p2 + Pi.z + 1.0);\n\n\tvec3 p31 = permute(p3 + Pi.z - 1.0);\n\tvec3 p32 = permute(p3 + Pi.z);\n\tvec3 p33 = permute(p3 + Pi.z + 1.0);\n\n\tvec3 ox11 = fract(p11*K) - Ko;\n\tvec3 oy11 = mod7(floor(p11*K))*K - Ko;\n\tvec3 oz11 = floor(p11*K2)*Kz - Kzo; // p11 < 289 guaranteed\n\n\tvec3 ox12 = fract(p12*K) - Ko;\n\tvec3 oy12 = mod7(floor(p12*K))*K - Ko;\n\tvec3 oz12 = floor(p12*K2)*Kz - Kzo;\n\n\tvec3 ox13 = fract(p13*K) - Ko;\n\tvec3 oy13 = mod7(floor(p13*K))*K - Ko;\n\tvec3 oz13 = floor(p13*K2)*Kz - Kzo;\n\n\tvec3 ox21 = fract(p21*K) - Ko;\n\tvec3 oy21 = mod7(floor(p21*K))*K - Ko;\n\tvec3 oz21 = floor(p21*K2)*Kz - Kzo;\n\n\tvec3 ox22 = fract(p22*K) - Ko;\n\tvec3 oy22 = mod7(floor(p22*K))*K - Ko;\n\tvec3 oz22 = floor(p22*K2)*Kz - Kzo;\n\n\tvec3 ox23 = fract(p23*K) - Ko;\n\tvec3 oy23 = mod7(floor(p23*K))*K - Ko;\n\tvec3 oz23 = floor(p23*K2)*Kz - Kzo;\n\n\tvec3 ox31 = fract(p31*K) - Ko;\n\tvec3 oy31 = mod7(floor(p31*K))*K - Ko;\n\tvec3 oz31 = floor(p31*K2)*Kz - Kzo;\n\n\tvec3 ox32 = fract(p32*K) - Ko;\n\tvec3 oy32 = mod7(floor(p32*K))*K - Ko;\n\tvec3 oz32 = floor(p32*K2)*Kz - Kzo;\n\n\tvec3 ox33 = fract(p33*K) - Ko;\n\tvec3 oy33 = mod7(floor(p33*K))*K - Ko;\n\tvec3 oz33 = floor(p33*K2)*Kz - Kzo;\n\n\tvec3 dx11 = Pfx + jitter_cell_noise*ox11;\n\tvec3 dy11 = Pfy.x + jitter_cell_noise*oy11;\n\tvec3 dz11 = Pfz.x + jitter_cell_noise*oz11;\n\n\tvec3 dx12 = Pfx + jitter_cell_noise*ox12;\n\tvec3 dy12 = Pfy.x + jitter_cell_noise*oy12;\n\tvec3 dz12 = Pfz.y + jitter_cell_noise*oz12;\n\n\tvec3 dx13 = Pfx + jitter_cell_noise*ox13;\n\tvec3 dy13 = Pfy.x + jitter_cell_noise*oy13;\n\tvec3 dz13 = Pfz.z + jitter_cell_noise*oz13;\n\n\tvec3 dx21 = Pfx + jitter_cell_noise*ox21;\n\tvec3 dy21 = Pfy.y + jitter_cell_noise*oy21;\n\tvec3 dz21 = Pfz.x + jitter_cell_noise*oz21;\n\n\tvec3 dx22 = Pfx + jitter_cell_noise*ox22;\n\tvec3 dy22 = Pfy.y + jitter_cell_noise*oy22;\n\tvec3 dz22 = Pfz.y + jitter_cell_noise*oz22;\n\n\tvec3 dx23 = Pfx + jitter_cell_noise*ox23;\n\tvec3 dy23 = Pfy.y + jitter_cell_noise*oy23;\n\tvec3 dz23 = Pfz.z + jitter_cell_noise*oz23;\n\n\tvec3 dx31 = Pfx + jitter_cell_noise*ox31;\n\tvec3 dy31 = Pfy.z + jitter_cell_noise*oy31;\n\tvec3 dz31 = Pfz.x + jitter_cell_noise*oz31;\n\n\tvec3 dx32 = Pfx + jitter_cell_noise*ox32;\n\tvec3 dy32 = Pfy.z + jitter_cell_noise*oy32;\n\tvec3 dz32 = Pfz.y + jitter_cell_noise*oz32;\n\n\tvec3 dx33 = Pfx + jitter_cell_noise*ox33;\n\tvec3 dy33 = Pfy.z + jitter_cell_noise*oy33;\n\tvec3 dz33 = Pfz.z + jitter_cell_noise*oz33;\n\n\tvec3 d11 = dx11 * dx11 + dy11 * dy11 + dz11 * dz11;\n\tvec3 d12 = dx12 * dx12 + dy12 * dy12 + dz12 * dz12;\n\tvec3 d13 = dx13 * dx13 + dy13 * dy13 + dz13 * dz13;\n\tvec3 d21 = dx21 * dx21 + dy21 * dy21 + dz21 * dz21;\n\tvec3 d22 = dx22 * dx22 + dy22 * dy22 + dz22 * dz22;\n\tvec3 d23 = dx23 * dx23 + dy23 * dy23 + dz23 * dz23;\n\tvec3 d31 = dx31 * dx31 + dy31 * dy31 + dz31 * dz31;\n\tvec3 d32 = dx32 * dx32 + dy32 * dy32 + dz32 * dz32;\n\tvec3 d33 = dx33 * dx33 + dy33 * dy33 + dz33 * dz33;\n\n\t// Sort out the two smallest distances (F1, F2)\n#if 0\n\t// Cheat and sort out only F1\n\tvec3 d1 = min(min(d11,d12), d13);\n\tvec3 d2 = min(min(d21,d22), d23);\n\tvec3 d3 = min(min(d31,d32), d33);\n\tvec3 d = min(min(d1,d2), d3);\n\td.x = min(min(d.x,d.y),d.z);\n\treturn vec2(sqrt(d.x)); // F1 duplicated, no F2 computed\n#else\n\t// Do it right and sort out both F1 and F2\n\tvec3 d1a = min(d11, d12);\n\td12 = max(d11, d12);\n\td11 = min(d1a, d13); // Smallest now not in d12 or d13\n\td13 = max(d1a, d13);\n\td12 = min(d12, d13); // 2nd smallest now not in d13\n\tvec3 d2a = min(d21, d22);\n\td22 = max(d21, d22);\n\td21 = min(d2a, d23); // Smallest now not in d22 or d23\n\td23 = max(d2a, d23);\n\td22 = min(d22, d23); // 2nd smallest now not in d23\n\tvec3 d3a = min(d31, d32);\n\td32 = max(d31, d32);\n\td31 = min(d3a, d33); // Smallest now not in d32 or d33\n\td33 = max(d3a, d33);\n\td32 = min(d32, d33); // 2nd smallest now not in d33\n\tvec3 da = min(d11, d21);\n\td21 = max(d11, d21);\n\td11 = min(da, d31); // Smallest now in d11\n\td31 = max(da, d31); // 2nd smallest now not in d31\n\td11.xy = (d11.x < d11.y) ? d11.xy : d11.yx;\n\td11.xz = (d11.x < d11.z) ? d11.xz : d11.zx; // d11.x now smallest\n\td12 = min(d12, d21); // 2nd smallest now not in d21\n\td12 = min(d12, d22); // nor in d22\n\td12 = min(d12, d31); // nor in d31\n\td12 = min(d12, d32); // nor in d32\n\td11.yz = min(d11.yz,d12.xy); // nor in d12.yz\n\td11.y = min(d11.y,d12.z); // Only two more to go\n\td11.y = min(d11.y,d11.z); // Done! (Phew!)\n\treturn sqrt(d11.xy); // F1, F2\n#endif\n}\n\n\n${An}\n\n// Included to use integer seed value to generate noise\n\n// https://gist.github.com/KdotJPG/67f847a9d5c89b9ad82cab673cdf1929\n// MIT for now, will Public Domain when I post to OpenSimplex2 repo!\n\nvec4 intToSeedVec(uint seed) {\n    vec4 iSeedVec = vec4((seed / uvec4(1, 256, 65536, 16777216)) & uvec4(255));\n    return trunc(iSeedVec * (1.0 / 9.0)) * 10.0 + fract(iSeedVec * (1.0 / 9.0)) * 9.0 + 1.0; // Skip multiples of 9\n}\n\nvec4 permute(vec4 t, float seedPart) {\n    return t * (t * 27.0 + seedPart);\n}\n\nfloat permute(float t, float seedPart) {\n    return t * (t * 27.0 + seedPart);\n}\n\nvec4 mod639(vec4 t) {\n    return t - floor(t * (1.0 / 639.0)) * 639.0;\n}\n\nfloat mod639(float t) {\n    return t - floor(t * (1.0 / 639.0)) * 639.0;\n}\n\nvec4 pmod639(vec4 t) {\n    return t - trunc(t * (1.0 / 639.0)) * 639.0;\n}\n\nfloat pmod639(float t) {\n    return t - trunc(t * (1.0 / 639.0)) * 639.0;\n}\n\nvec4 grad(float index) {\n    vec4 p0123 = index * (1.0 / vec4(2.0, 4.0, 8.0, 16.0));\n    vec3 p4_i45 = index * (1.0 / vec3(32.0, 128.0, 640.0));\n    p0123 = trunc((p0123 - trunc(p0123)) * 2.0) - 0.5;\n    p4_i45 = trunc((p4_i45 - trunc(p4_i45)) * vec3(2.0, 4.0, 5.0)) - vec3(0.5, 0.0, 0.0);\n    p4_i45.y += p4_i45.z;\n    p4_i45.y -= step(5.0, p4_i45.y) * 5.0;\n    p0123 *= vec4(equal(notEqual(vec4(p4_i45.y), vec4(0.0, 1.0, 2.0, 3.0)), notEqual(vec4(p4_i45.z), vec4(0.0, 1.0, 2.0, 3.0))));\n    p4_i45.x *= float(all(notEqual(p4_i45.yz, vec2(4.0)))) * 1.2071067811865475;\n    p0123 += vec4(equal(vec4(p4_i45.y), vec4(0.0, 1.0, 2.0, 3.0))) - vec4(equal(vec4(p4_i45.z), vec4(0.0, 1.0, 2.0, 3.0)));\n    p4_i45.x += dot(vec2(equal(p4_i45.yz, vec2(4.0))), vec2(1.2071067811865475, -1.2071067811865475));\n    return p0123 + dot(p0123, vec4(-0.138196601125011)) + p4_i45.x * 0.44721359549995793928183473374626;\n}\n\nfloat opensimplex2f(vec4 X, vec4 seedVec) {\n\tvec4 Xs = X + dot(X, vec4(-0.138196601125011));\n\n\tvec4 Xsb = floor(Xs);\n\tvec4 Xsi = Xs - Xsb;\n\n\tfloat siSum = dot(Xsi, vec4(1.0));\n\tfloat firstLattice = trunc(siSum * 1.25);\n\tvec3 startValues = firstLattice * vec3(-128.0, -0.2, -0.8);\n\n\tXsb += startValues.xxxx;\n\tXsi += startValues.yyyy;\n\tsiSum += startValues.z;\n\tvec4 latticeCoordOffsets = vec4(equal(vec4(0.0, 1.0, 2.0, 3.0), vec4(firstLattice))) * -641.0 + 128.0;\n\n\tvec4 vertex0 = vec4(greaterThanEqual(Xsi, max(max(Xsi.yzwx, Xsi.zwxy), max(Xsi.wxyz, vec4(1.0 - siSum)))));\n\tvec4 vh0 = Xsb + vertex0;\n\tXsb = vh0 + latticeCoordOffsets.xxxx; Xsi -= vertex0; siSum = dot(Xsi, vec4(1.0));\n\tvec4 d0 = Xsi + siSum * 0.309016994374947;\n\tXsi += 0.2; siSum += 0.8;\n\n\tvec4 vertex1 = vec4(greaterThanEqual(Xsi, max(max(Xsi.yzwx, Xsi.zwxy), max(Xsi.wxyz, vec4(1.0 - siSum)))));\n\tvec4 vh1 = Xsb + vertex1;\n\tXsb = vh1 + latticeCoordOffsets.yyyy; Xsi -= vertex1; siSum = dot(Xsi, vec4(1.0));\n\tvec4 d1 = Xsi + siSum * 0.309016994374947;\n\tXsi += 0.2; siSum += 0.8;\n\n\tvec4 vertex2 = vec4(greaterThanEqual(Xsi, max(max(Xsi.yzwx, Xsi.zwxy), max(Xsi.wxyz, vec4(1.0 - siSum)))));\n\tvec4 vh2 = Xsb + vertex2;\n\tXsb = vh2 + latticeCoordOffsets.zzzz; Xsi -= vertex2; siSum = dot(Xsi, vec4(1.0));\n\tvec4 d2 = Xsi + siSum * 0.309016994374947;\n\tXsi += 0.2; siSum += 0.8;\n\n\tvec4 vertex3 = vec4(greaterThanEqual(Xsi, max(max(Xsi.yzwx, Xsi.zwxy), max(Xsi.wxyz, vec4(1.0 - siSum)))));\n\tvec4 vh3 = Xsb + vertex3;\n\tXsb = vh3 + latticeCoordOffsets.wwww; Xsi -= vertex3; siSum = dot(Xsi, vec4(1.0));\n\tvec4 d3 = Xsi + siSum * 0.309016994374947;\n\tXsi += 0.2; siSum += 0.8;\n\n\tvec4 vertex4 = vec4(greaterThanEqual(Xsi, max(max(Xsi.yzwx, Xsi.zwxy), max(Xsi.wxyz, vec4(1.0 - siSum)))));\n\tvec4 vh4 = Xsb + vertex4;\n\tXsi -= vertex4; siSum = dot(Xsi, vec4(1.0));\n\tvec4 d4 = Xsi + siSum * 0.309016994374947;\n\n\tvec4 h0123 = permute(mod639(vec4(vh0.x, vh1.x, vh2.x, vh3.x)), seedVec.x);\n\th0123 = permute(mod639(h0123 + vec4(vh0.y, vh1.y, vh2.y, vh3.y)), seedVec.y);\n\th0123 = permute(mod639(h0123 + vec4(vh0.z, vh1.z, vh2.z, vh3.z)), seedVec.z);\n\th0123 = pmod639(permute(mod639(h0123 + vec4(vh0.w, vh1.w, vh2.w, vh3.w)), seedVec.w));\n\n\tfloat h4 = permute(mod639(vh4.x), seedVec.x);\n\th4 = permute(mod639(h4 + vh4.y), seedVec.y);\n\th4 = permute(mod639(h4 + vh4.z), seedVec.z);\n\th4 = pmod639(permute(mod639(h4 + vh4.w), seedVec.w));\n\n\tvec4 g0 = grad(h0123.x);\n\tvec4 g1 = grad(h0123.y);\n\tvec4 g2 = grad(h0123.z);\n\tvec4 g3 = grad(h0123.w);\n\tvec4 g4 = grad(h4);\n\n\t/*vec4 norm = inversesqrt(vec4(dot(g0, g0), dot(g1, g1), dot(g2, g2), dot(g3, g3)));\n\tg0 *= norm.x; g1 *= norm.y; g2 *= norm.z; g3 *= norm.w; g4 *= inversesqrt(dot(g4, g4));*/\n\n\t// "Proper" constant is 0.5. 0.6 produces subtle invisible discontinuities, but looks much better.\n\tvec4 a0123 = max(0.6 - vec4(dot(d0, d0), dot(d1, d1), dot(d2, d2), dot(d3, d3)), 0.0);\n\tfloat a4 = max(0.6 - dot(d4, d4), 0.0);\n\tvec4 r0123 = vec4(dot(d0, g0), dot(d1, g1), dot(d2, g2), dot(d3, g3));\n\tfloat r4 = dot(d4, g4);\n\ta0123 *= a0123; a4 *= a4;\n\treturn (dot(a0123 * a0123, r0123) + a4 * a4 * r4) * 27.0; // TODO compute tighter normalization constant.\n}\n\nfloat opensimplex2f(vec4 X) {\n    return opensimplex2f(X, vec4(1.0));\n}\n\n\n#define TO_FLOAT (1./255.0)\n\n#define sin01(x) (sin(x)*.5)+.5\n\n#define disabled vec3(0.0)\n\n`}\n\n\nstruct Layer1\n{\n  float brightness;\n  float blobbyness;\n  float blur;\n\n  bool enabled;\n};\n\nstruct Layer2\n{\n  float brightness;\n  float cycleSpeed;\n  bool enabled;\n};\n\nstruct Feedback\n{\n  float amount;\n  float scaleX;\n  float scaleY;\n  float centerX;\n  float centerY;\n  float dist;\n};\n\n\n\nuniform vec2 resolution;\nuniform vec4 time; // [time, time/2, time*2, time/10]\nuniform sampler2D ramp;\nuniform Layer1 layer1;\nuniform Layer2 layer2;\nuniform Feedback feedback;\n\nuniform sampler2D backBufferTex;\n\nuniform float noiseDither;\n\nuniform uint seed;\n\nout vec4 FragColor;\nin vec4 fragUV;\n\n\n\nvec3 doLayer1(in vec4 uv, in vec2 n, inout vec3 col)\n{\n  vec2 st = uv.zw;\n  // st *= sin(time.x);\n  float p1 = hash(seed + uint(156));\n  float p2 = hash(seed + uint(12355));\n  float p3 = hash(seed + uint(62435));\n\n  float s1 = 2.*(p1-.5);\n  float s2 = 2.*(p2-.5);\n  float s3 = 2.*(p3 - .5);\n\n\nst = scale(st, 2.);\n  float sk = .1*sin(time.y*1.56 + p2);\n\n  float d = sdParallelogram(st + vec2(sin(time.z) + s1, sin(time.y*1.4) + s2), .4, .1, sk);\n  float d2 = sdRhombus(translate(rotate(scale( translate(st, vec2(s2, s3)*vec2(.5, .2)) , 4.*p1), p3*30.*DEG2RAD), vec2(0.,0.)), vec2(1.,1.));\n  float d3 = sdEquilateralTriangle(rotate(scale(st,4.*p1+sin(time.x)), 90.*p2*DEG2RAD + time.z/5.));\n\n  float noise = snoise(vec3(uv.xy, time.x));\n  float dMix = smoothstep(.0,.2, mix(d,d2, sin01(time.y  + p3*TWOPI ) ));\n\n  dMix = sminCubic(d,d2,.5);\n  dMix = sminCubic(sminCubic(d,d2, .5), d3, .5);\n\n  dMix+=layer1.blobbyness*noise;\n  d += noise*layer1.blobbyness;\n\n  vec4 rampSample = texture2D(ramp, vec2(time.z *layer2.cycleSpeed + p2 + length(st)*.2 + noiseDither  , .5));\n\n\n  vec3 layer1Col = layer1.brightness*rampSample.rgb*saturate(1.-smoothstep(-layer1.blur,layer1.blur, dMix));//(mix(layer1.color1*TO_FLOAT, layer1.color2*TO_FLOAT, saturate(smoothstep(-layer1.blur, layer1.blur, dMix))));\n\n  layer1Col = layer1.enabled ? layer1Col : disabled;\n  col += layer1Col;\n\n  return layer1Col;\n}\n\n\nvec3 doLayer2(in vec4 uv, in vec2 n, inout vec3 col)\n{\n  float p1 = hash(seed + uint(98765));\n\n  vec3 grad;\n  float noise = snoise(vec3(uv.xy, time.x), grad);\n  noise *= 0.4;\n  noise = smoothstep(-1.,1., noise);\n  vec4 rampSample = texture2D(ramp, vec2( time.z *layer2.cycleSpeed + p1 + rotate(uv.xy*.5, time.x*DEG2RAD).x + noiseDither  , .5));\n\n  vec3 layer2Col = rampSample.rgb*noise*layer2.brightness;\n  vec3 color = layer2.enabled ? layer2Col : disabled;\n  col.rgb += color;\n\n  return color;\n\n}\n\n\n\nvec2 scaleUV(vec2 uv, vec2 scaleFactor, vec2 center)\n{\n return ( uv - center)*scaleFactor  + center;\n}\n\n\nvoid main() {\n  vec2 uv = gl_FragCoord.xy / resolution;\n  vec2 uvOrig = uv;\n  vec2 st = (uv*resolution - vec2(.5, .5)*resolution)/resolution.y;\n\n  vec2 n = vec2(\n    opensimplex2f(vec4(uv*10., time.x, time.y), intToSeedVec(uint(seed))),\n    opensimplex2f(vec4(1.), intToSeedVec(uint(seed)))\n  ) ;\n\n  // Init output\n  vec4 col = vec4(0.);\n  col.a = 1.;\n\n  // Calculate layers\n  vec3 l1 = doLayer1(vec4(uv, st), n, col.rgb);\n  vec3 l2 = doLayer2(vec4(uv, st), n, col.rgb);\n\n  // Comp Layers\n  col.rgb = l1 + l2;\n\n  // Feedback stage\n  vec3 grad;\n  float noise = snoise(vec3(uv.xy, time.x)*.5, grad);\n  vec4 lastFrame = texture2D(backBufferTex, uv+ grad.xy*feedback.dist);\n  // col.rgb += lastFrame.rgb*feedback.amount;\n\n  // trying out using the *current* frame for feedback, instead of going\n  // backwards, so as to achieve always-reproducible state\n  col.rgb += col.rgb*feedback.amount;\n\n  // Clamp color values\n  col.rgb = saturate(col.rgb);\n\n  FragColor = col;\n  // FragColor = lastFrame;\n}\n`,Cn=`\n#version 300 es\n\n\n#if __VERSION__ > 130\n#define texture2D texture\n#endif\n\n\nprecision mediump float;\n\nout vec4 FragColor;\n\n${En}\n${An}\n\nuniform float noiseDither;\n\nuniform vec2 resolution;\nuniform sampler2D backBuffer;\n\nuniform float saturation;\nuniform float contrast;\n\n\nuniform sampler2D ramp;\nuniform bool displayGradient;\n\nmat4 brightnessMatrix( float brightness )\n{\n    return mat4( 1, 0, 0, 0,\n                 0, 1, 0, 0,\n                 0, 0, 1, 0,\n                 brightness, brightness, brightness, 1 );\n}\n\nmat4 contrastMatrix( float c )\n{\n\tfloat t = ( 1.0 - c ) / 2.0;\n\n    return mat4( c, 0, 0, 0,\n                 0, c, 0, 0,\n                 0, 0, c, 0,\n                 t, t, t, 1 );\n\n}\n\nmat4 saturationMatrix( float s )\n{\n    vec3 luminance = vec3( 0.3086, 0.6094, 0.0820 );\n\n    float oneMinusSat = 1.0 - s;\n\n    vec3 red = vec3( luminance.x * oneMinusSat );\n    red+= vec3( s, 0, 0 );\n\n    vec3 green = vec3( luminance.y * oneMinusSat );\n    green += vec3( 0, s, 0 );\n\n    vec3 blue = vec3( luminance.z * oneMinusSat );\n    blue += vec3( 0, 0, s );\n\n    return mat4( red,     0,\n                 green,   0,\n                 blue,    0,\n                 0, 0, 0, 1 );\n}\n\nvoid drawRamp(inout vec4 col, vec2 uv, vec2 size)\n{\n\n  uv.y = 1. - uv.y;\n  vec2 rampUV = uv*(1./size);\n\n  float insideRamp = displayGradient ? step(uv.x, size.x) * step(uv.y, size.y) : 0.0;\n  vec4 rampSample = texture2D(ramp, rampUV*2.);\n  col.rgb = mix(col.rgb, rampSample.rgb, insideRamp);// vec3(insideRamp);\n}\n\nvoid main() {\n  vec2 uv = gl_FragCoord.xy / resolution;\n  // uv += noiseDither*vec2(rand(uv), rand(uv + vec2(112.234,253.253)));\n\n\n  vec4 lastCol = texture2D(backBuffer, uv);\n  vec4 colOut;\n  colOut.a = 1.;\n\n  colOut = contrastMatrix(contrast)*saturationMatrix(saturation)*lastCol;\n\n  // linear to gamma\n  // colOut.rgb = pow( colOut.rgb, vec3(0.4545) );\n\n  drawRamp(colOut, uv, vec2(.5,.2));\n  FragColor = colOut;\n}\n\n`;const Dn=(n,e)=>{const t=e.width??256,r=e.height??256;let o=n.createTexture();return n.bindTexture(n.TEXTURE_2D,o),n.texParameteri(n.TEXTURE_2D,n.TEXTURE_WRAP_S,n.CLAMP_TO_EDGE),n.texParameteri(n.TEXTURE_2D,n.TEXTURE_WRAP_T,n.CLAMP_TO_EDGE),n.texParameteri(n.TEXTURE_2D,n.TEXTURE_MIN_FILTER,n.LINEAR),n.texParameteri(n.TEXTURE_2D,n.TEXTURE_MAG_FILTER,n.LINEAR),n.texImage2D(n.TEXTURE_2D,0,n.RGBA,t,r,0,n.RGBA,n.UNSIGNED_BYTE,null),o},Fn=(n,e)=>{const t=n.createFramebuffer();return n.bindFramebuffer(n.FRAMEBUFFER,t),n.framebufferTexture2D(n.FRAMEBUFFER,n.COLOR_ATTACHMENT0,n.TEXTURE_2D,e,0),t};class Rn{constructor(n,e){this.width=e.width=e.width??256,this.height=e.height=e.height??256,this.texture1=Dn(n,e),this.texture2=Dn(n,e),this.fb1=Fn(n,this.texture1),this.fb2=Fn(n,this.texture2),this.swp=!1,this.gl=n}currentTexture=()=>this.swp?this.texture2:this.texture1;lastTexture=()=>this.swp?this.texture1:this.texture2;currentFramebuffer=()=>this.swp?this.fb2:this.fb1;swap=()=>this.swp=!this.swp;bind=()=>{this.gl.bindFramebuffer(this.gl.FRAMEBUFFER,this.currentFramebuffer()),this.gl.viewport(0,0,this.width,this.height)}}var Mn=[[95,168,242],[48,64,92],[220,91,172],[111,200,111],[253,205,0]];return function(){function e(e,t){var r=t.animTime,o=t.seed,i=t.colors,a=t.layer1Params,c=t.globalParams,s=t.layer2Params,l=t.feedbackSettings,u=t.blurSettings,d=t.width,f=t.height,v=this;this.renderLoop=function(n){requestAnimationFrame(v.renderLoop),v.render(n)},this.render=function(n){var e=v,t=e.gl,r=e.ppb,o=e.globalParams,i=e.ramp,a=e.programAura,c=e.programFinal,s=e.bufferInfo;if(null!=a&&null!=c){if(v.playing){var l=n-v.prevTimestamp;if(l<=v.fixedDeltaTime)return;v.animTime+=l*v.globalParams.speed,v.prevTimestamp=n-l%v.fixedDeltaTime;var u=n-v.startTime;v.currFps=Math.round(1e3/(u/++v.frameCount)*100)/100}var d=.001*v.animTime;!function(n,e){e=e||1,e=Math.max(0,e);const t=n.clientWidth*e|0,r=n.clientHeight*e|0;(n.width!==t||n.height!==r)&&(n.width=t,n.height=r)}(v.gl.canvas);var f={time:[d,d/2,2*d,10*d],resolution:[v.targetTexWidth,v.targetTexHeight],ramp:v.ramp,layer1:v.layer1Params,layer2:v.layer2Params,feedback:v.feedbackSettings,noiseDither:v.globalParams.noise,backBufferTex:v.ppb.lastTexture(),seed:v.seed};r.bind(),t.useProgram(a.program),bn(t,a,s),hn(a,f),wn(t,s),r.swap();for(var x=v.blurSettings.iterations,m=0;m<x;m++){var p=v.blurSettings.radius,y=m%2==0?[p,0]:[0,p],h={resolution:[v.targetTexWidth,v.targetTexHeight],iChannel0:r.lastTexture(),direction:y};r.bind(),t.useProgram(v.programBlur.program),bn(t,v.programBlur,s),hn(v.programBlur,h),wn(t,s),r.swap()}var b=Math.max(t.canvas.width,t.canvas.height),g={resolution:[b,b],backBuffer:r.lastTexture(),noiseDither:o.noise,ramp:i,contrast:o.contrast,saturation:o.saturation,value:o.value,displayGradient:o.displayGradient};t.bindFramebuffer(t.FRAMEBUFFER,null),t.viewport(0,0,t.canvas.width,t.canvas.height),t.useProgram(c.program),bn(t,c,s),hn(c,g),wn(t,s),r.swap()}},this.start=function(n){void 0===n&&(n=!0),v.started||(v.started=!0,n&&v.play(),v.renderLoop(window.performance.now()))},this.play=function(){v.startTime=v.prevTimestamp=window.performance.now(),v.playing=!0},this.pause=function(){v.playing=!1},this.shutdown=function(){v.playing=!1,requestAnimationFrame((function(){v.gl.deleteProgram(v.programAura.program),v.gl.deleteProgram(v.programFinal.program),v.gl.deleteProgram(v.programBlur.program)}))},this.rng=p("".concat(o)),this.started=!1,this.globalParams=c,this.layer1Params=a,this.layer2Params=s,this.feedbackSettings=l,this.blurSettings=u,this.animTime=r,this.colors=i,this.gl=e,this.canvas=this.gl.canvas,this.width=d,this.height=f,this.canvas.width=d,this.canvas.height=f,this.startTime=this.prevTimestamp=window.performance.now(),this.targetTexWidth=256,this.targetTexHeight=256,this.playing=!1,this.fixedDeltaTime=1e3/c.targetFps,this.seed=o,this.frameCount=0,this.programAura=zn(this.gl,[Pn,Sn]),this.programFinal=zn(this.gl,[Pn,Cn]),this.programBlur=zn(this.gl,[Pn,"\n#version 300 es\n#if __VERSION__ > 130\n#define texture2D texture\n#endif\n\nprecision mediump float;\n\n\nuniform vec2 resolution;\nuniform sampler2D iChannel0;\nuniform vec2 direction;\nout vec4 FragColor;\n\n\nvec4 blur(sampler2D image, vec2 uv, vec2 resolution, vec2 direction) {\n        vec4 color = vec4(0.0);\n        vec2 off1 = vec2(1.411764705882353) * direction;\n        vec2 off2 = vec2(3.2941176470588234) * direction;\n        vec2 off3 = vec2(5.176470588235294) * direction;\n        color += texture2D(image, uv) * 0.1964825501511404;\n        color += texture2D(image, uv + (off1 / resolution)) * 0.2969069646728344;\n        color += texture2D(image, uv - (off1 / resolution)) * 0.2969069646728344;\n        color += texture2D(image, uv + (off2 / resolution)) * 0.09447039785044732;\n        color += texture2D(image, uv - (off2 / resolution)) * 0.09447039785044732;\n        color += texture2D(image, uv + (off3 / resolution)) * 0.010381362401148057;\n        color += texture2D(image, uv - (off3 / resolution)) * 0.010381362401148057;\n        return color;\n      }\n\n\n\nvoid main(){\n    vec2 uv = gl_FragCoord.xy / resolution;\n\n    FragColor = blur(iChannel0, uv, resolution.xy, direction);\n}\n"]),this.bufferInfo=F(e,Tn);for(var x=[],m=n([],this.colors,!0);m.length>0;)x.push(m.splice(Math.floor(this.rng()*m.length),1)[0]);this.ramp=function(n,e){var t,r,o,i=null!==(t=e.resolution)&&void 0!==t?t:256,a=null!==(r=e.height)&&void 0!==r?r:256,c=null!==(o=e.colors)&&void 0!==o?o:[[255,0,0],[0,0,255],[0,255,0]];if(!c||c.length<2)return console.log("Need at least 2 colors to make a gradient"),null;var s=zn(n,[Pn,_n]),l=F(n,Tn);n.viewport(0,0,i,a);var u=n.createTexture();n.bindTexture(n.TEXTURE_2D,u),n.texImage2D(n.TEXTURE_2D,0,n.RGB,i,a,0,n.RGB,n.UNSIGNED_BYTE,null),n.texParameteri(n.TEXTURE_2D,n.TEXTURE_MIN_FILTER,n.LINEAR),n.texParameteri(n.TEXTURE_2D,n.TEXTURE_MAG_FILTER,n.LINEAR),n.texParameteri(n.TEXTURE_2D,n.TEXTURE_WRAP_S,n.MIRRORED_REPEAT),n.texParameteri(n.TEXTURE_2D,n.TEXTURE_WRAP_T,n.MIRRORED_REPEAT);var d=n.createFramebuffer();n.bindFramebuffer(n.FRAMEBUFFER,d);var f=n.COLOR_ATTACHMENT0;return n.framebufferTexture2D(n.FRAMEBUFFER,f,n.TEXTURE_2D,u,0),n.useProgram(s.program),n.clearColor(0,0,0,1),bn(n,s,l),hn(s,{colors:c.flat(),numColors:c.length,resolution:[i,a]}),wn(n,l),u}(e,{colors:x,resolution:256}),this.ppb=new Rn(e,{width:this.targetTexWidth,height:this.targetTexHeight})}return e.defaultParams={animTime:0,seed:1,colors:n(n([],Mn,!0),[Mn[0]],!1),globalParams:{contrast:1.37,displayGradient:!1,feedback:.99,noise:.5,saturation:1.69,speed:.13,targetFps:60,value:1},layer1Params:{blobbyness:1.3,blur:1.01,brightness:.52,enabled:!0},layer2Params:{blur:1.47,brightness:.6,cycleSpeed:.12,enabled:!0},feedbackSettings:{amount:.28,centerX:.5,centerY:.5,dist:.06,scaleX:1.01,scaleY:1.01},blurSettings:{iterations:5,radius:5}},e}()}();