Shader Library

varying vec2 v_uv;

uniform float u_time;

uniform vec2 u_resolution;

uniform vec2 u_mousepos;

uniform sampler2D u_texturemap;

vec3 hash( vec3 p )

{

p = vec3(

dot(p, vec3(127.1,311.7, 74.7)),

dot(p, vec3(269.5,183.3,246.1)),

dot(p, vec3(113.5,271.9,124.6))

);

return - 1.0 + 2.0 * fract(sin(p) * 43758.5453123);

}

float noise( in vec3 p )

{

vec3 i = floor(p);

vec3 f = fract(p);

vec3 u = f * f * (3.0 - 2.0 * f);

return mix(

mix(

mix(

dot(hash(i + vec3(0.0,0.0,0.0)), f - vec3(0.0,0.0,0.0)),

dot(hash(i + vec3(1.0,0.0,0.0)), f - vec3(1.0,0.0,0.0)),

u.x