Some shader optimization

game/entities/ships/shield.gdshader

@@ -5,38 +5,35 @@ uniform float scale = 20.0;
 uniform float intensity = 1;
 
 float rand(vec2 coord) {
-    return fract(sin(dot(coord, vec2(12.9898, 78.233))) * 43758.5453);
+	return fract(sin(dot(coord, vec2(12.9898, 78.233))) * 43758.5453);
 }
 
 float cellular(vec2 coord) {
-    vec2 i = floor(coord);
+	vec2 i = floor(coord);
-    vec2 f = fract(coord);
+	vec2 f = fract(coord);
-    
+
-    float min_dist = 1.0;
+	float min_dist = 1.0;
-    
+
-    for (int y = -1; y <= 1; y++) {
+	for (int y = -1; y <= 1; y++) {
-        for (int x = -1; x <= 1; x++) {
+		for (int x = -1; x <= 1; x++) {
-            vec2 neighbor = vec2(float(x), float(y));
+			vec2 neighbor = vec2(float(x), float(y));
-            vec2 point = vec2(rand(i + neighbor), rand(i + neighbor + vec2(1000.0)));
+			vec2 point = vec2(rand(i + neighbor), rand(i + neighbor + vec2(1000.0)));
-            point = 0.5 * sin(TIME * speed + 6.2831 * point);
+			point = 0.5 * sin(TIME * speed + 6.2831 * point);
-            vec2 diff = neighbor + point - f;
+			vec2 diff = neighbor + point - f;
-            float dist = length(diff);
+			float dist = length(diff);
-            min_dist = min(min_dist, dist);
+			min_dist = min(min_dist, dist);
-        }
+		}
-    }
+	}
-    
+
-    return min_dist;
+	return min_dist;
 }
 
 void fragment() {
-    vec2 coord = UV * scale;
+	if (COLOR.a != 0.0) {
-    
+		vec2 coord = UV * scale;
-    float pattern = cellular(coord);
+
-    
+		float pattern = cellular(coord);
-    float alpha = COLOR.a;
+
-    if (pattern > intensity) {
+		COLOR = vec4(COLOR.rgb, (pattern > intensity) ? 0.0 : 1.0);
-        alpha = 0.0;
+	}
-    }
+}
-    
-    COLOR = vec4(COLOR.rgb, alpha);
-}