Smoother star transition

Author: spiralhalo

assets/lumi/shaders/common/contrast.glsl

@@ -96,5 +96,5 @@ const float USER_ALBEDO_BRIGHTENING        = clamp(ALBEDO_BRIGHTENING, 0, 20) /
 	const float EMISSIVE_LIGHT_STR	= DEF_EMISSIVE_LIGHT_STR;
 	const float LIGHTNING_FLASH_STR = DEF_LIGHTNING_FLASH_STR;
 	// spaghetti
-	const float STAR_LUMIGATE_HIGH	= max(lightLuminance(DEF_DAY_SKY_COLOR) * 0.4, lightLuminance(DEF_NIGHT_SKY_COLOR) + 0.1) * DEF_SKY_STR;
-	const float STAR_LUMIGATE_LOW	= max(STAR_LUMIGATE_HIGH * 0.26, lightLuminance(DEF_NIGHT_SKY_COLOR)) * DEF_SKY_STR;
+	const float STAR_LUMIGATE_HIGH	= max(lightLuminance(DEF_DAY_SKY_COLOR) * 0.4, lightLuminance(DEF_NIGHT_SKY_COLOR) * 1.1) * DEF_SKY_STR;
+	const float STAR_LUMIGATE_LOW	= lightLuminance(DEF_NIGHT_SKY_COLOR) * DEF_SKY_STR;

assets/lumi/shaders/prog/sky.glsl

@@ -135,7 +135,8 @@ vec4 customSky(sampler2D sunTexture, sampler2D moonTexture, vec3 toSky, vec3 fal
 		// Stars
 		const vec3 NON_MILKY_AXIS = vec3(-0.598964, 0.531492, 0.598964);
 
-		float starry = l2_clampScale(STAR_LUMIGATE_HIGH, STAR_LUMIGATE_LOW, lightLuminance(result.rgb));
+		float starGate = l2_clampScale(STAR_LUMIGATE_HIGH, STAR_LUMIGATE_LOW, lightLuminance(result.rgb));
+		float starry = starGate * starGate;
 			 starry *= l2_clampScale(-0.6, -0.5, skyDotUp); //prevent star near the void core
 
 		float milkyness   = l2_clampScale(0.7, 0.0, abs(dot(NON_MILKY_AXIS, toSky.xyz)));