proper horizon colours yay

Assets/sunset_box/Sunset Env.mat

@@ -68,6 +68,7 @@ Material:
     - _Glossiness: 0.5
     - _GlossyReflections: 1
     - _Grid: 0
+    - _HorizonTint: 0.1
     - _Metallic: 0
     - _Mode: 0
     - _OcclusionStrength: 1
@@ -82,8 +83,8 @@ Material:
     - _StarTint: 0.5
     - _StarsMissing: 0.75
     - _SunAngle: 0
-    - _SunCutoff: 0.06
+    - _SunCutoff: 0.121
-    - _SunRadius: 0.06
+    - _SunRadius: 0.037
     - _Temp: 0.5
     - _UVSec: 0
     - _WaveStrength: 1
@@ -92,6 +93,6 @@ Material:
     - _Color: {r: 1, g: 1, b: 1, a: 1}
     - _EmissionColor: {r: 0, g: 0, b: 0, a: 1}
     - _HorizonCol: {r: 0.43, g: 0.27, b: 0.49, a: 1}
-    - _SkyCol: {r: 0.22, g: 0.23, b: 0.58, a: 1}
+    - _SkyCol: {r: 0.13841508, g: 0.08388217, b: 0.2735849, a: 1}
-    - _SunCol: {r: 1, g: 0.65, b: 0.05, a: 1}
+    - _SunCol: {r: 1, g: 0.5988961, b: 0.05098039, a: 1}
     - _WaterCol: {r: 0.041651834, g: 0.0754717, b: 0.060873438, a: 1}

Assets/sunset_box/Sunset Env.mat.meta

@@ -1,5 +1,5 @@
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+guid: 01de444cda656e74ea4c64c47e6343cf
 NativeFormatImporter:
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   mainObjectFileID: 2100000

Assets/sunset_box/Sunset Env_old.mat

@@ -0,0 +1,98 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!21 &2100000
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+    - _SpecularHighlights: 1
+    - _SrcBlend: 1
+    - _StarDensity: 30
+    - _StarRandom: 0.85
+    - _StarSize: 0.06
+    - _StarSizeRandom: 0.5
+    - _StarTint: 0.5
+    - _StarsMissing: 0.75
+    - _SunAngle: 0
+    - _SunCutoff: 0.06
+    - _SunRadius: 0.06
+    - _Temp: 0.5
+    - _UVSec: 0
+    - _WaveStrength: 1
+    - _ZWrite: 1
+    m_Colors:
+    - _Color: {r: 1, g: 1, b: 1, a: 1}
+    - _EmissionColor: {r: 0, g: 0, b: 0, a: 1}
+    - _HorizonCol: {r: 0.43, g: 0.27, b: 0.49, a: 1}
+    - _SkyCol: {r: 0.22, g: 0.23, b: 0.58, a: 1}
+    - _SunCol: {r: 1, g: 0.65, b: 0.05, a: 1}
+    - _WaterCol: {r: 0.041651834, g: 0.0754717, b: 0.060873438, a: 1}

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@@ -0,0 +1,8 @@
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Assets/sunset_box/sunset_box.unity

@@ -567,7 +567,7 @@ PrefabInstance:
     - target: {fileID: -8679921383154817045, guid: 5009e49fafd33ed0e980b53b1f9e954d,
         type: 3}
       propertyPath: m_LocalPosition.z
-      value: -0
+      value: 0
       objectReference: {fileID: 0}
     - target: {fileID: -8679921383154817045, guid: 5009e49fafd33ed0e980b53b1f9e954d,
         type: 3}
@@ -618,7 +618,7 @@ PrefabInstance:
         type: 3}
       propertyPath: m_Materials.Array.data[1]
       value: 
-      objectReference: {fileID: 2100000, guid: 0e76bd19438f76495b4a89153191400f, type: 2}
+      objectReference: {fileID: 2100000, guid: 01de444cda656e74ea4c64c47e6343cf, type: 2}
     - target: {fileID: 919132149155446097, guid: 5009e49fafd33ed0e980b53b1f9e954d,
         type: 3}
       propertyPath: m_Name

Assets/sunset_box/sunset_env_dynamic.shader

@@ -4,7 +4,7 @@
 	{
 		[Header(Sky)]
 		_SkyCol ("Sky color", Color) = (0.22, 0.23, 0.58, 1.0)
-		_HorizonCol ("Horizon color", Color) = (0.43, 0.27, 0.49, 1.0)
+		_HorizonTint ("Horizon tint", Range(0, 1)) = 0.1
 		[Header(Sun)]
 		_SunCol ("Sun color", Color) = (1.0, 0.65, 0.05, 1.0)
 		_SunAngle ("Sun angle", Range(0, 6.28)) = 0
@@ -61,7 +61,7 @@
 
 			sampler2D _MainTex;
 			fixed4 _SkyCol;
-			fixed4 _HorizonCol;
+			float _HorizonTint;
 
 			float _StarsMissing;
 			float _StarDensity;
@@ -103,6 +103,18 @@
 				return normalize(normal.zxy);
 			}
 
+			float smin(float a, float b, float k)
+			{
+				float h = max(k - abs(a-b), 0) / k;
+				return min(a, b) - h*h*h*k * 1/6.0;
+			}
+
+			float smax(float a, float b, float k)
+			{
+				float h = max(k - abs(a - b), 0) / k;
+				return max(a, b) + h*h*h*k * 1/6.0;
+			}
+
 			fixed4 frag(v2f i) : SV_Target
 			{
 				float water_mod = 0.0;
@@ -131,7 +143,8 @@
 				/// sky
 				float factor = smoothstep(0.0, 0.5, dir.y + 0.2);
 				factor = min(factor, 1.0);
-				fixed4 col = lerp(_HorizonCol, _SkyCol, factor);
+				fixed4 horizon_col = lerp(_SkyCol, _SunCol, _HorizonTint);
+				fixed4 col = lerp(horizon_col, _SkyCol, factor);
 
 				/// stars
 				float2 cells = float2(-1, floor(_StarDensity));
@@ -172,9 +185,7 @@
 				/// sun
 				float3 sun_dir = float3(sin(_SunAngle), 0.0, cos(_SunAngle));
 				float alignment = min(acos(dot(dir, sun_dir)), 1);
-				// float sun_gradient = pow(y-1, 2) * 0.5 + 0.8;
+				float sun_amount = smax(min(_SunRadius / alignment, 5) - _SunCutoff, 0, 0.15);
-				float sun_gradient = 1;
-				float sun_amount = max(min(_SunRadius / alignment * sun_gradient, 5) - _SunCutoff, 0);
 
 				col = lerp(col, _SunCol, sun_amount);
 				col = lerp(col, _WaterCol, water_mod);