48 lines
1.4 KiB
GLSL
48 lines
1.4 KiB
GLSL
|
//#ifdef GL_ES -- Nice little tunnel... any idea ? -Harley
|
||
|
|
precision mediump float;
|
||
|
|
//#endif
|
||
|
|
|
||
|
|
uniform float time;
|
||
|
|
uniform vec2 mouse;
|
||
|
|
uniform vec2 resolution;
|
||
|
|
|
||
|
|
float pi = 3.1415926;
|
||
|
|
vec2 Offset;
|
||
|
|
vec2 Scale=vec2(0.002,0.002);
|
||
|
|
float Saturation = 0.9; // 0 - 1;
|
||
|
|
|
||
|
|
|
||
|
|
vec3 lungth(vec2 x,vec3 c){
|
||
|
|
return vec3(length(x+c.r),length(x+c.g),length(c.b));
|
||
|
|
}
|
||
|
|
|
||
|
|
void main( void ) {
|
||
|
|
vec2 R = resolution;
|
||
|
|
|
||
|
|
vec2 position = (gl_FragCoord.xy - resolution * 0.5) / resolution.yy;
|
||
|
|
float th = atan(position.y, position.x) / (1.0 * pi);
|
||
|
|
float dd = length(position) + 0.00005;
|
||
|
|
float d = 0.5 / dd + time;
|
||
|
|
|
||
|
|
vec2 x = gl_FragCoord.xy;
|
||
|
|
vec3 c2=vec3(0,0,0);
|
||
|
|
x=R*x*Scale*R/R.x;
|
||
|
|
x*x+sin(x.yx*sqrt(vec2(7,9)))/1.;
|
||
|
|
c2=lungth(sin(x*sqrt(vec2(3,43))),vec3(5,6,7)*Saturation * d);
|
||
|
|
x+=sin(x.yx*sqrt(vec2(73,5)))/5.;
|
||
|
|
c2=2.*lungth(sin(time+x*sqrt(vec2(33.,23.))),c2/9.);
|
||
|
|
x+=sin(x.yx*sqrt(vec2(93,7)))/3.;
|
||
|
|
c2=lungth(sin(x*sqrt(vec2(3.,1.))),c2/2.0);
|
||
|
|
c2=.5+.5*sin(c2*8.);
|
||
|
|
|
||
|
|
vec3 uv = vec3(th + d, th - d, th + sin(d) * 0.45);
|
||
|
|
float a = 0.5 + cos(uv.x * pi * 2.0) * 0.5;
|
||
|
|
float b = 0.5 + cos(uv.y * pi * 2.0) * 0.5;
|
||
|
|
float c = 0.5 + cos(uv.z * pi * 6.0) * 0.5;
|
||
|
|
vec3 color = mix(vec3(0.5, 0.5, 0.5), vec3(0.1, 0.1, 0.2), pow(a, 0.2)) * 3.;
|
||
|
|
color += mix(vec3(1.0, 0.2, 1.0), vec3(0.1, 0.1, 0.2), pow(b, 0.1)) * 0.75;
|
||
|
|
color += mix(c2, vec3(0.1, 0.2, 0.2), pow(c, 0.1)) * 0.75;
|
||
|
|
|
||
|
|
gl_FragColor = vec4( (color * dd), 1.0);
|
||
|
|
}
|