Shader Library

#define MAX_ITERATIONS 150.0

#define PI 3.1415926535

varying vec2 v_uv;

uniform float u_time;

uniform vec2 u_resolution;

vec3 palette(float t)

{

vec3 a = vec3(0.821, 0.328, 0.242);

vec3 b = vec3(0.659, 0.481, 0.896);

vec3 c = vec3(0.612, 0.340, 0.296);

vec3 d = vec3(2.820, 3.026, -0.273);

return a + b * cos((PI * 2.0) * (c * t + d));

}

float i_lerp(float value, float min_val, float max_val)

{

return (value - min_val) / (max_val - min_val);

}

float remap(float value, float in_min, float in_max, float out_min, float out_max)

{

float t = i_lerp(value, in_min, in_max);

return mix(out_min, out_max, t);

}

vec2 set_c(float t)

{

return vec2(

-0.8 + 0.2 * remap(cos(t), -1.0, 1.0, 0.0, 0.25),