Mondrian

precision highp float;

uniform vec2 resolution;

uniform vec2 mouse;

uniform float time;

uniform sampler2D backbuffer;

out vec4 outColor;

​

vec4 rect(vec2 st, vec2 pos, vec2 size, vec3 color){

    float a = 1.;

    if(st.x < pos.x) a = 0.;

    if(st.y < pos.y) a = 0.;

    if(st.x > pos.x + size.x) a = 0.;

    if(st.y > pos.y + size.y) a = 0.;

    return vec4(color, a);

}

​

void main(){

    vec2 st = gl_FragCoord.xy/resolution.xy;

    vec3 color = vec3(.0,.0,.0);

    vec4 r;

    r = rect(st, vec2(0.,0.85), vec2(0.05 ,0.200),

                  vec3(0.7,0.001,0.03));

    color = mix(color, r.rgb, r.a);

    r = rect(st, vec2(0.,0.610), vec2(0.05,0.200),

                  vec3(0.7,0.001,0.03));

    color = mix(color, r.rgb, r.a);

    r = rect(st, vec2(0.07,0.610), vec2(0.07,0.200),

                  vec3(0.7,0.001,0.03));

    color = mix(color, r.rgb, r.a);

    r = rect(st, vec2(0.07,0.85), vec2(0.07 ,0.200),

                  vec3(0.7,0.001,0.03));

    color = mix(color, r.rgb, r.a);

     r = rect(st, vec2(0.162,0.610), vec2(0.5,0.200),

                  vec3(1.,1.,0.8));

    color = mix(color, r.rgb, r.a);

    r = rect(st, vec2(0.162,0.85), vec2(0.5 ,0.200),

                  vec3(1.,1.,0.8));

    color = mix(color, r.rgb, r.a);

    r = rect(st, vec2(0.685,0.610), vec2(0.25,0.200),

                  vec3(1.,1.,0.8));

    color = mix(color, r.rgb, r.a);

    r = rect(st, vec2(0.685,0.85), vec2(0.25 ,0.200),

                  vec3(1.,1.,0.8));

    color = mix(color, r.rgb, r.a);

    r = rect(st, vec2(0.958,0.610), vec2(0.25,0.200),

                  vec3(1.,1.,0.));

    color = mix(color, r.rgb, r.a);

    r = rect(st, vec2(0.958,0.85), vec2(0.25 ,0.200),

                  vec3(1.,1.,0.));

    color = mix(color, r.rgb, r.a);

    r = rect(st, vec2(0.958,0.16), vec2(0.25 ,0.400),

                  vec3(1.,1.,0.8));

    color = mix(color, r.rgb, r.a);

    r = rect(st, vec2(0.685,0.16), vec2(0.25 ,0.400),

                  vec3(1.,1.,0.8));

    color = mix(color, r.rgb, r.a);

    r = rect(st, vec2(0.162,0.16), vec2(0.5,0.400),

                  vec3(1.,1.,0.8));

    color = mix(color, r.rgb, r.a);

    r = rect(st, vec2(0.,0.), vec2(0.14,0.56),

                  vec3(1.,1.,0.8));

    color = mix(color, r.rgb, r.a);

    r = rect(st, vec2(0.958,0.0006), vec2(0.25 ,0.11),

                  vec3(0.2,0.2,0.8));

    color = mix(color, r.rgb, r.a);

    r = rect(st, vec2(0.685,0.0006), vec2(0.25 ,0.11),

                  vec3(0.2,0.2,0.8));

    color = mix(color, r.rgb, r.a);

    r = rect(st, vec2(0.162,0.0006), vec2(0.5,0.11),

                  vec3(1.,1.,0.8));

    color = mix(color, r.rgb, r.a);

​

    outColor = vec4(color,1.0);

}