uniform float time;
uniform vec2 resolution;
#pragma glslify:noise=require('../../includes/noise/simplex-3d')
const float PI=3.14;
const int paletteSize=7;
const vec3[paletteSize]palette=vec3[](
vec3(.87,.84,.85),
vec3(.73,.06,.16),
vec3(.14,.56,.29),
vec3(.85,.07,.13),
vec3(.16,.37,.63),
vec3(.30,.20,.50),
vec3(.95,.62,.20)
);
float sdBox(in vec2 p,in vec2 b){
vec2 d=abs(p)-b;
return length(max(d,0.))+min(max(d.x,d.y),0.);
}
mat2 rotationMatrix(float angle){
angle*=PI/180.;
float s=sin(angle),c=cos(angle);
return mat2(c,-s,s,c);
}
void main(){
vec2 uv=gl_FragCoord.xy/resolution.xy;
vec3 col=palette[0];
vec2 fRes=resolution.yy;
vec2 fUv=gl_FragCoord.xy/fRes;
float h=floor(fUv.x+time*.1);
vec2 fhUv=mod(vec2(fUv.x+time*.1,fUv.y),vec2(1.));
vec2 wfUv=fUv;
wfUv.y+=sin(wfUv.x*3.)*.2;
wfUv*=rotationMatrix(noise(vec3(h+15.42,5.262,21.262))*360.);
int stripeY=int(floor(wfUv.y*10.+time*.5));
int stripeX=int(floor(wfUv.x*5.+noise(vec3(float(stripeY)*14.3727+time*.1))));
vec3 b1Col=palette[int(mod(float(stripeY+stripeX),float(paletteSize)-1.)+1.)];
vec2 b1Uv=(fhUv-vec2(.5))*vec2(2.15,2.25);
float b1Sd=sdBox(b1Uv,vec2(1.));
col=mix(col,b1Col,step(b1Sd,0.));
gl_FragColor=vec4(col,1.);
}
