React Perspex Web Lattice

"use client";import React, { forwardRef } from "react";import { Shader } from "react-shaders";import { cn } from "@/lib/utils";export interface PerspexWebLatticeShadersProps extends React.HTMLAttributes<HTMLDivElement> {  speed?: number;  rotationSpeed?: number;  latticeScale?: number;  edgeIntensity?: number;}const fragmentShader = `#define FAR 2.int id = 0;vec3 tex3D( sampler2D tex, in vec3 p, in vec3 n ){    n = max((abs(n) - .2), .001);    n /= (n.x + n.y + n.z );        p = (texture(tex, p.yz)*n.x + texture(tex, p.zx)*n.y + texture(tex, p.xy)*n.z).xyz;        return p*p;}float n3D(vec3 p){    const vec3 s = vec3(7, 157, 113);    vec3 ip = floor(p); p -= ip;     vec4 h = vec4(0., s.yz, s.y + s.z) + dot(ip, s);    p = p*p*(3. - 2.*p);    h = mix(fract(sin(h)*43758.5453), fract(sin(h + s.x)*43758.5453), p.x);    h.xy = mix(h.xz, h.yw, p.y);    return mix(h.x, h.y, p.z);}vec2 hash22(vec2 p) {     float n = sin(dot(p, vec2(41, 289)));        p = fract(vec2(262144, 32768)*n);         return sin( p*6.2831853 + iTime*u_speed )*.45 + .5; }float Voronoi(in vec2 p){    vec2 g = floor(p), o; p -= g;        vec3 d = vec3(1);        for(int y = -1; y <= 1; y++){        for(int x = -1; x <= 1; x++){            o = vec2(x, y);            o += hash22(g + o) - p;                        d.z = dot(o, o);                         d.y = max(d.x, min(d.y, d.z));            d.x = min(d.x, d.z);         }    }        return max(d.y/1.2 - d.x*1., 0.)/1.2;}float heightMap(vec3 p){    id = 0;    float c = Voronoi(p.xy*4.*u_latticeScale);        if (c<.07) {c = smoothstep(0.7, 1., 1.-c)*.2; id = 1; }    return c;}float m(vec3 p){    float h = heightMap(p);        return 1. - p.z - h*.1;}vec3 nr(vec3 p, inout float edge) {     vec2 e = vec2(.005, 0);    float d1 = m(p + e.xyy), d2 = m(p - e.xyy);    float d3 = m(p + e.yxy), d4 = m(p - e.yxy);    float d5 = m(p + e.yyx), d6 = m(p - e.yyx);    float d = m(p)*2.;         edge = abs(d1 + d2 - d) + abs(d3 + d4 - d) + abs(d5 + d6 - d);        edge = smoothstep(0., 1., sqrt(edge/e.x*2.));        return normalize(vec3(d1 - d2, d3 - d4, d5 - d6));}vec3 eMap(vec3 rd, vec3 sn){    vec3 sRd = rd;        rd.xy -= iTime*.25*u_speed;    rd *= 3.;        float c = n3D(rd)*.57 + n3D(rd*2.)*.28 + n3D(rd*4.)*.15;    c = smoothstep(0.5, 1., c);        vec3 col = vec3(min(c*1.5, 1.), pow(c, 2.5), pow(c, 12.)).zyx;        return mix(col, col.yzx, sRd*.25+.25); }void mainImage(out vec4 c, vec2 u){    vec3 r = normalize(vec3(u - iResolution.xy*.5, iResolution.y)),          o = vec3(0), l = o + vec3(0, 0, -1);       vec2 a = sin(vec2(1.570796, 0) + iTime/8.*u_rotationSpeed);    r.xy = mat2(a, -a.y, a.x) * r.xy;    float d, t = 0.;        for(int i=0; i<32;i++){        d = m(o + r*t);        if(abs(d)<0.001 || t>FAR) break;        t += d*.7;    }        t = min(t, FAR);        c = vec4(0);        float edge = 0.;        if(t<FAR){        vec3 p = o + r*t, n = nr(p, edge);        l -= p;        d = max(length(l), 0.001);        l /= d;        float hm = heightMap(p);                vec3 tx = vec3(n3D(p*2. + hm*.2));                c.xyz = vec3(1.)*(hm*.8 + .2);                c.xyz *= vec3(1.5)*tx;                c.x = dot(c.xyz, vec3(.299, .587, .114));        if (id==0) c.xyz *= vec3(min(c.x*1.5, 1.), pow(c.x, 5.), pow(c.x, 24.))*2.;        else c.xyz *= .1;               float df = max(dot(l, n), 0.);        float sp = pow(max(dot(reflect(-l, n), -r), 0.), 32.);                if(id == 1) sp *= sp;                c.xyz = c.xyz*(df + .75) + vec3(1, .97, .92)*sp + vec3(.5, .7, 1)*pow(sp, 32.);                vec3 em = eMap(reflect(r, n), n);        if(id == 1) em *= .5;        c.xyz += em;                c.xyz *= 1. - edge*.8*u_edgeIntensity;                c.xyz *= 1./(1. + d*d*.125);    }        c = vec4(sqrt(clamp(c.xyz, 0., 1.)), 1.);}`;export const PerspexWebLatticeShaders = forwardRef<HTMLDivElement, PerspexWebLatticeShadersProps>(  (    {      className,      speed = 1.0,      rotationSpeed = 1.0,      latticeScale = 1.0,      edgeIntensity = 1.0,      ...props    },    ref  ) => {    return (      <div        ref={ref}        className={cn('w-full h-full', className)}        {...props}      >        <Shader          fs={fragmentShader}          uniforms={{            u_speed: { type: '1f', value: speed },            u_rotationSpeed: { type: '1f', value: rotationSpeed },            u_latticeScale: { type: '1f', value: latticeScale },            u_edgeIntensity: { type: '1f', value: edgeIntensity },          }}          style={{ width: '100%', height: '100%' } as CSSStyleDeclaration}        />      </div>    );  });PerspexWebLatticeShaders.displayName = "PerspexWebLatticeShaders";export default PerspexWebLatticeShaders;