slightly better dots

src/game/shaders/frag.sc

@@ -5,35 +5,32 @@ $input v_uv0
 
 float circle(vec2 uv, float radius)
 {
-	radius *= 0.8;
 	float distSq = uv.x * uv.x + uv.y * uv.y;
-	float result = distSq > radius * radius;
-	return 1.0 - result;
+	float result = distSq / (radius * radius);
+	return result < 1.0;
+	// return clamp(1.0 - result, 0.0, 1.0);
 }
 
 float circles(vec2 uv, float level, float subLevel)
 {
-	vec2 offsetUv = uv + (0.5 + level * 0.5);
-	vec2 bigUv = (offsetUv % 1.0) - 0.5;
-	float base = 0.0;
-	if (subLevel > 0.25)
-	{
-		vec2 smallUv = (((offsetUv + 0.25) % 2.0) * 2.0) - 0.5;
-		base += circle(smallUv, 0.5);
-	}
-	if (subLevel > 0.5)
-	{
-		vec2 smallUv = (((offsetUv - 0.75) % 2.0) * 2.0) - 0.5;
-		base += circle(smallUv, 0.5);
-	}
-	if (subLevel > 0.75)
-	{
-		vec2 smallUv = (((offsetUv + 1.25) % 2.0) * 2.0) - 0.5;
-		base += circle(smallUv, 0.5);
-	}
-	base += circle(bigUv, lerp(0.25, 0.5, 1.0 - subLevel));
+	vec2 offsetUv = uv + 0.5;
+	vec2 baseUv = (offsetUv % 1.0) - 0.5;
+	vec2 step1Uv = ((offsetUv + vec2(0.5, 0.5)) % 1.0) - 0.5;
+	vec2 step2Uv = ((offsetUv + vec2(0.5, 0.0)) % 1.0) - 0.5;
+	vec2 step3Uv = ((offsetUv + vec2(0.0, 0.5)) % 1.0) - 0.5;
 
-	return base;
+	float step = subLevel * 3.0;
+	float step1 = clamp(step, 0.0, 1.0);
+	float step2 = clamp(step - 1, 0.0, 1.0);
+	float step3 = clamp(step - 2, 0.0, 1.0);
+	
+	float sum = 0.0;
+	sum += circle(baseUv, lerp(0.5, 0.25, subLevel));
+	sum += circle(step1Uv, 0.25 * step1);
+	sum += circle(step2Uv, 0.25 * step2);
+	sum += circle(step3Uv, 0.25 * step3);
+
+	return min(sum, 1.0);
 }
 
 void main()