Add thingy.glsl

thingy.glsl

@@ -0,0 +1,33 @@
+#ifdef GL_ES
+precision mediump float;
+#extension GL_OES_standard_derivatives : enable
+#endif
+
+uniform float time;
+uniform vec2 mouse;
+uniform vec2 resolution;
+
+void main( void ) {
+	vec2 p = 2.0*( gl_FragCoord.xy / resolution.xy ) -1.0;
+	p.x *= resolution.x/resolution.y;
+	vec3 col = vec3(0);
+
+	float ang = time*0.1;
+	//p = vec2(p.x*cos(ang)-p.y*sin(ang),p.x*sin(ang)+p.y*cos(ang));
+	vec2 op = p;//*sin(time*0.1);
+	for (int i = 0; i < 100; i++) {
+
+		p = op;
+		p.x = mod(p.x+2.0+0.25*time, 4.0)-2.0;
+		p.y = -abs(p.y)+0.8;
+		float k = float(i)+time*10.0;
+		float d = abs(p.y+0.5*smoothstep(0.0,1.0,p.x-mouse.x*0.0+0.0)-0.5*smoothstep(0.0,1.0,p.x+2.0));
+		col += vec3(sin(k),sin(k+2.0),sin(k+3.0))*6.0/(1.0+300.0*d)/(1.0+0.05*float(i));
+		//if (d < 0.005) col += vec3(1)/(1.0+0.3*float(i));
+		op *= 1.05;
+		float ang = 0.05;
+		op = vec2(op.x*cos(ang)-op.y*sin(ang),op.x*sin(ang)+op.y*cos(ang));
+	}
+	col *= 0.3;
+	gl_FragColor = vec4(col, 1.0);
+}