Mandelbrot GLSL shader!

opengl/src/shaders/mandelbrot.frag

@@ -0,0 +1,32 @@
+uniform vec2 resolution;
+
+vec4 colorize(int i) {
+    if(i == 0 || i == 50) {
+        return vec4(0.0, 0.0, 0.0, 1.0);
+    } else {
+        float strength = float(i)/50.0;
+        return vec4(0.5*strength, 1.5*strength, 2.0*strength, 1.0);
+    }
+}
+
+void main(void)
+{
+    vec2 position = gl_FragCoord.xy / resolution;
+    vec2 z, c;
+    c.x = -0.5 + (position.x - 0.5) * 3.0;
+    c.y = (position.y - 0.5) * 3.0;
+
+    z = c;
+    int i;
+    for(i=0; i<50; i++) {
+        float real = (z.x * z.x - z.y * z.y) + c.x;
+        float imag = (z.y * z.x + z.x * z.y) + c.y;
+
+        if((real*real + imag*imag) > 4.0) break;
+
+        z.x = real;
+        z.y = imag;
+    }
+
+    gl_FragColor = colorize(i);
+}

opengl/src/shaders/mandelbrot.vert

@@ -0,0 +1,11 @@
+#version 330 core
+
+// Input vertex data, different for all executions of this shader.
+layout(location = 0) in vec3 vertexPosition_modelspace;
+
+void main(){
+
+    gl_Position.xyz = vertexPosition_modelspace;
+    gl_Position.w = 1.0;
+
+}