You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
54 lines
1.6 KiB
GLSL
54 lines
1.6 KiB
GLSL
// Author @patriciogv ( patriciogonzalezvivo.com ) - 2015
|
|
|
|
#ifdef GL_ES
|
|
precision mediump float;
|
|
#endif
|
|
|
|
// Copyright (c) Patricio Gonzalez Vivo, 2015 - http://patriciogonzalezvivo.com/
|
|
// I am the sole copyright owner of this Work.
|
|
//
|
|
// You cannot host, display, distribute or share this Work in any form,
|
|
// including physical and digital. You cannot use this Work in any
|
|
// commercial or non-commercial product, website or project. You cannot
|
|
// sell this Work and you cannot mint an NFTs of it.
|
|
// I share this Work for educational purposes, and you can link to it,
|
|
// through an URL, proper attribution and unmodified screenshot, as part
|
|
// of your educational material. If these conditions are too restrictive
|
|
// please contact me and we'll definitely work it out.
|
|
|
|
#define PI 3.14159265358979323846
|
|
|
|
uniform vec2 u_resolution;
|
|
uniform vec2 u_mouse;
|
|
uniform float u_time;
|
|
|
|
float rows = 10.0;
|
|
|
|
vec2 brickTile(vec2 _st, float _zoom){
|
|
_st *= _zoom;
|
|
if (fract(_st.y * 0.5) > 0.5){
|
|
_st.x += 0.5;
|
|
}
|
|
return fract(_st);
|
|
}
|
|
|
|
float circle(vec2 _st, float _radius){
|
|
vec2 pos = vec2(0.5)-_st;
|
|
_radius *= 0.75;
|
|
return 1.-smoothstep(_radius-(_radius*0.01),_radius+(_radius*0.01),dot(pos,pos)*3.14);
|
|
}
|
|
|
|
void main(){
|
|
|
|
vec2 st = gl_FragCoord.xy/u_resolution.xy;
|
|
st.x *= u_resolution.x/u_resolution.y;
|
|
|
|
st = brickTile(st,5.);
|
|
vec3 color = vec3(circle(st+vec2(0.,0.1), 0.007)+
|
|
circle(st+vec2(0.00,-0.1), 0.007)+
|
|
circle(st+vec2(-0.1,0.), 0.007)+
|
|
circle(st+vec2(0.1,0), 0.007));
|
|
|
|
gl_FragColor = vec4(color,1.0);
|
|
}
|