Open source Star Ruler 2 source code!

data/shaders/source/research_beam_ps.txt

@@ -0,0 +1,10 @@
+varying vec2 uv;
+uniform sampler2D texture;
+
+void main() {
+	float a = pow(min(uv.y, 1.0 - uv.y), 0.3);
+	vec4 texCol = texture2D(texture,uv);
+
+	gl_FragColor.rgb = gl_Color.rgb * texCol.rgb;
+	gl_FragColor.a = a * gl_Color.a * texCol.a;
+}