Open source Star Ruler 2 source code!

data/shaders/source/beam_fade_ps.txt

@@ -0,0 +1,14 @@
+varying vec2 uv;
+uniform float cycle;
+uniform float offset;
+uniform sampler2D texture;
+
+void main() {
+	vec3 sample = texture2D(texture,uv - vec2(cycle, 0.0)).rgb * (1.0 - uv.x);
+	
+	if(abs((uv.x + 1.0) - (mod(cycle + offset, 1.0) * 2.0)) < 0.3)
+		sample *= 1.3;
+
+	gl_FragColor.rgb = ((sample - vec3(0.5)) * 2.0 + gl_Color.rgb) * gl_Color.a;
+	gl_FragColor.a = 0.0;
+}