modified: shaders/data/monjori.glsl

Author: monkstone

shaders/data/monjori.glsl

@@ -1,30 +1,36 @@
-#define PROCESSING_COLOR_SHADER
+#ifdef GL_ES
+precision mediump float;
+precision mediump int;
+#endif
 
-uniform vec2 resolution;
-uniform float time;
+uniform vec2  resolution; // viewport resolution (in pixels)
+uniform float  time; // time in millis
 
-void main(void) {
- vec2 p = -1.0 + 2.0 * gl_FragCoord.xy / resolution.xy;
- float a = time*40.0;
- float d,e,f,g=1.0/40.0,h,i,r,q;
- e=400.0*(p.x*0.5+0.5);
- f=400.0*(p.y*0.5+0.5);
- i=200.0+sin(e*g+a/150.0)*20.0;
- d=200.0+cos(f*g/2.0)*18.0+cos(e*g)*7.0;
- r=sqrt(pow(i-e,2.0)+pow(d-f,2.0));
- q=f/r;
- e=(r*cos(q))-a/2.0;f=(r*sin(q))-a/2.0;
- d=sin(e*g)*176.0+sin(e*g)*164.0+r;
- h=((f+d)+a/2.0)*g;
- i=cos(h+r*p.x/1.3)*(e+e+a)+cos(q*g*6.0)*(r+h/3.0);
- h=sin(f*g)*144.0-sin(e*g)*212.0*p.x;
- h=(h+(f-e)*q+sin(r-(a+h)/7.0)*10.0+i/4.0)*g;
- i+=cos(h*2.3*sin(a/350.0-q))*184.0*sin(q-(r*4.3+a/12.0)*g)+tan(r*g+h)*184.0*cos(r*g+h);
- i=mod(i/5.6,256.0)/64.0;
- if(i<0.0) i+=4.0;
- if(i>=2.0) i=4.0-i;
- d=r/350.0;
- d+=sin(d*d*8.0)*0.52;
- f=(sin(a*g)+1.0)/2.0;
- gl_FragColor=vec4(vec3(f*i/1.6,i/2.0+d/13.0,i)*d*p.x+vec3(i/1.3+d/8.0,i/2.0+d/18.0,i)*d*(1.0-p.x),1.0);
+void main( void )
+{
+ vec2 p = (2.0 * gl_FragCoord.xy / resolution.xy) - 1.0;
+ float a = time * 40.0;
+
+ // declare a bunch of variables.
+ float d, g=1.0/40.0,h,i,r,q;
+ vec2 ef = 200.0 * (p + 1.0);
+ i = 200.0+sin(ef.x*g+a/150.0)*20.0;
+ d = 200.0+cos(ef.y*g/2.0)*18.0+cos(ef.x*g)*7.0;
+ r = length( vec2(i, d) - ef );
+ q = ef.y/r;
+ ef = vec2((r*cos(q))-a/2.0, (r*sin(q))-a/2.0);
+ d = sin(ef.x*g)*176.0 + sin(ef.x*g)*164.0 + r;
+ h = ((ef.y+d)+a/2.0)*g;
+ i = cos(h+r*p.x/1.3)*(ef.x+ef.x+a) + cos(q*g*6.0)*(r+h/3.0);
+ h = sin(ef.y*g)*144.0-sin(ef.x*g)*212.0*p.x;
+ h = (h+(ef.y-ef.x)*q+sin(r-(a+h)/7.0)*10.0+i/4.0)*g;
+ i += cos(h*2.3*sin(a/350.0-q)) * 184.0*sin(q-(r*4.3+a/12.0)*g) + sin(r*g+h)*184.0;
+ // Split into 4 segments
+ i = mod(i/5.6,256.0)/64.0;
+ if (i < 0.0) i += 4.0;
+ if (i >= 2.0) i = 4.0-i;
+ d = r/350.0;
+ d += sin(d*d*8.0)*0.52;
+ ef.y = (sin(a*g)+1.0)/2.0;
+ gl_FragColor = vec4(vec3(ef.y*i/1.6,i/2.0+d/13.0,i)*d*p.x+vec3(i/1.3+d/8.0,i/2.0+d/18.0,i)*d*(1.0-p.x),1.0);
 }