Munching squares: Difference between revisions

=={{header|GLSL}}==

<lang GLSL>vec3 color;

float c,p;

vec2 b;

void main(void)

{

vec2 uv = gl_FragCoord.xy / iResolution.xy;

float scale = iResolution.x / iResolution.y;

uv = uv-0.5;

uv.y/=scale;

b = uv*256.0+256.0;

c = 0.0;

for(float i=16.0;i>=1.0;i-=1.0)

{

p = pow(2.0,i);

if((p < b.x) ^^

(p < b.y))

{

c += p;

}

if(p < b.x)

{

b.x -= p;

}

if(p < b.y)

{

b.y -= p;

}

}

c=mod(c/128.0,1.0);

color = vec3(sin(c+uv.x*cos(uv.y*1.2)), tan(c+uv.y-0.3)*1.1, cos(c-uv.y+0.9));

gl_FragColor = vec4(color,1.0);

}</lang>

[[Image:GLSL_Munching_sq.png|GLSL output|200px]]

[[Image:gnuplot_xor.png|Gnuplot output|200px]]