Sha256: 782b69b9e55851a31e5f77c6f3fdafd4ce95802d4c68d9a00dcbce1936e73642
Contents?: true
Size: 1.24 KB
Versions: 21
Compression:
Stored size: 1.24 KB
Contents
#version 330 core
#ifdef GL_ES
precision mediump float;
#endif
// http://glslsandbox.com/e#30671.1
#extension GL_OES_standard_derivatives : enable
uniform float time;
uniform vec2 mouse;
uniform vec2 resolution;
out vec4 color_out;
float snoise(vec3 uv, float res)
{
const vec3 s = vec3(1e0, 1e2, 1e3);
uv *= res;
vec3 uv0 = floor(mod(uv, res))*s;
vec3 uv1 = floor(mod(uv+vec3(1.), res))*s;
vec3 f = fract(uv); f = f*f*(3.0-2.0*f);
vec4 v = vec4(uv0.x+uv0.y+uv0.z, uv1.x+uv0.y+uv0.z,
uv0.x+uv1.y+uv0.z, uv1.x+uv1.y+uv0.z);
vec4 r = fract(sin(v*1e-1)*1e3);
float r0 = mix(mix(r.x, r.y, f.x), mix(r.z, r.w, f.x), f.y);
r = fract(sin((v + uv1.z - uv0.z)*1e-1)*1e3);
float r1 = mix(mix(r.x, r.y, f.x), mix(r.z, r.w, f.x), f.y);
return mix(r0, r1, f.z)*2.-1.;
}
void main( void ) {
vec2 p = -0.5+( gl_FragCoord.xy / resolution.xy );
p.x*=resolution.x/resolution.y;
float color = 3.0 - (6.*length(p));
vec3 coord = vec3(atan(p.x,p.y)/6.2832, length(p)*0.4, .5);
for(int i = 1; i <= 7; i++){
float power = pow(2.0, float(i));
color += (1.5 / power) * snoise(coord + vec3(0.,-time*.05, time*.01), power*16.);
}
color_out = vec4( color, pow(max(color,0.),2.)*0.4, pow(max(color,0.),3.)*0.15 , 1.0);
}
Version data entries
21 entries across 21 versions & 1 rubygems