shawnlawson

void main () {
     vec2 uv = uv(); vec2 uvN = uvN(); vec3 c = black; 
    float theta = atan(uv.x, uv.y) / PI2 + .5; float phi = log(length(uv));
    
    float k = 2. * bands.x + 2.;
    float a = mod(atan(uv.x, uv.y), PI2/k);
    a = abs(a - PI2/k/2.);
    
    vec2 center = vec2 (0);
    

shawnlawson

void main () {
     vec2 uv = uv(); vec2 uvN = uvN(); vec3 c = black; 
    float theta = atan(uv.x, uv.y) / PI2 + .5; float phi = log(length(uv));
    
    float k = 2. * bands.x + 9.;
    float a = mod(atan(uv.x, uv.y), PI2/k);
    a = abs(a - PI2/k/2.);
    vec3 f = rmf(vec2(a, phi - time * 1.4), int(6. * bands.y)) * yellow;

    k = 2. * bands.y + 9.;

shawnlawson

void main () {
     vec2 uv = uv(); vec2 uvN = uvN(); vec3 c = black; 
    float theta = atan(uv.x, uv.y) / PI2 + .5; float phi = log(length(uv));
    
    float k = 2. * bands.x + 2.;
    float a = mod(atan(uv.x, uv.y), PI2/k);
    a = abs(a - PI2/k/2.);
    
    vec2 center = vec2 (0.);
    

shawnlawson

void main () {
     vec2 uv = uv(); vec2 uvN = uvN(); vec3 c = black; 
    float theta = atan(uv.x, uv.y) / PI2 + .5; float phi = log(length(uv));
    
    float k = 1.3 * bands.y * 2.;
    float a = mod(atan(uv.x, uv.y), PI2/k);
    a = abs(a - PI2/k/2.);
    
    c += red * .5 * length(bands);
    

shawnlawson

void main () {
     vec2 uv = uv(); vec2 uvN = uvN(); vec3 c = black; 
    float theta = atan(uv.x, uv.y) / PI2 + .5; float phi = log(length(uv));
    
    float k = 4. * bands.w + 2.;
    float a = mod(atan(uv.x, uv.y), PI2/k);
    a = abs(a - PI2/k/2.);
    
    vec2 center = vec2 (0.);
    

shawnlawson

Generic 1,2,3 Noise

float rand(float n){return fract(sin(n) * 43758.5453123);}

float noise(float p){
	float fl = floor(p);
  float fc = fract(p);
	return mix(rand(fl), rand(fl + 1.0), fc);
}