Volumetric effects

client/shaders/noise_shader/opengl_fragment.glsl

@@ -0,0 +1,15 @@
+// Pseudorandom number generator
+float rand(vec2 n) { 
+	return fract(sin(dot(n, vec2(12.9898, 4.1414))) * 43758.5453);
+}
+
+// More random pseudorandom number generator;
+float noise(vec2 p){
+	vec2 p2 = p + vec2(rand(p), rand(p.yx));
+	return rand(p2);
+}
+
+void main(void)
+{
+	gl_FragColor = vec4(vec3(noise(gl_FragCoord.xy)), 1.);
+}

client/shaders/noise_shader/opengl_vertex.glsl

@@ -0,0 +1,4 @@
+void main(void)
+{
+	gl_Position = inVertexPosition;
+}