#pragma glslify:noise=require('../../includes/noise/3d')
uniform float time;
uniform float seed;
uniform vec2 resolution;
uniform vec2 pointer;
vec3 palette(float t){
float ft = floor(time * 0.3);
vec3 a=vec3(
sin(ft + 3.5262) * 0.5 + 0.5,
sin(ft + 64.62) * 0.5 + 0.5,
sin(ft + 31.268) * 0.5 + 0.5
);
vec3 b=vec3(1,1,1);
vec3 c=vec3(
0.2 + (sin(ft + 11.35285) * 0.5 + 0.5) * 0.3,
0.35 + (sin(ft + 12.35285) * 0.5 + 0.5) * 0.3,
0.3 + (sin(ft + 13.35285) * 0.5 + 0.5) * 0.3
);
vec3 d=vec3(0.61,0.52,0.53);
return a+b*cos(6.28318*(c*t+d));
}
bool C(vec2 p, int x, int y){
return sin(1e3*length (ceil(p)+vec2(x,y))) > noise(vec3((ceil(p)+vec2(x,y)) * 10., seed + floor(time * 0.3))) * 0.2 + 0.8;
}
void main(){
vec2 uv=gl_FragCoord.xy/resolution.xy;
vec2 uv0=uv;
uv-=vec2(.5);
uv*=max(vec2(resolution.x/resolution.y,1.),vec2(1.,resolution.y/resolution.x));
uv.x += sin(time * 0.03 + seed);
uv.y += cos(time * 0.03 + seed);
uv += pointer / resolution * 0.5;
uv *= mat2(1.,-2.,1.,2.);
float s = 10.;
vec2 p = vec2(floor(uv.x * s), floor(uv.y * s));
uv = fract(uv * s);
vec4 color=vec4(vec3(0.), 1.);
bool r = uv.x+uv.y > 1.;
vec2 g = uv * 0.1;
float w = C(p, 1,-1) ? 0.9
: C(p, 1, 0) && r ? .6 + g.y
: C(p, 0,-1) && !r ? .4 - g.x
: C(p, 0, 0) ? r ? .4 - g.x : .6 + g.y
: C(p, -1,0) ? 0.
: .2;
color = vec4(palette(w), 1.);
gl_FragColor=color;
}
