simplify shaderr

Assets/Materials/Skybox Shaders/LiquidStar.shader

@@ -6,9 +6,7 @@ Shader "Unlit/LiquidStar"
         _Scale("Surface Scale", Range(0.5, 20.0)) = 3.0
         _BaseColor("Base Color", Color) = (1.0, 0.1, 0.0, 1.0)
         _HotColor("Hot Spot Color", Color) = (1.0, 0.9, 0.2, 1.0)
-        _SpotColor("Sunspot Color", Color) = (0.3, 0.0, 0.0, 1.0)
-        _SpotScale("Sunspot Scale", Range(1.0, 15.0)) = 5.0
-        _SpotThreshold("Sunspot Threshold", Range(0.0, 1.0)) = 0.45
+        _SpotColor("Dark Color", Color) = (0.3, 0.0, 0.0, 1.0)
         _GlowIntensity("Glow Intensity", Range(1.0, 20.0)) = 6.0
         _Turbulence("Turbulence", Range(0.0, 3.0)) = 1.2
         _EdgeSoftness("Edge Softness", Range(0.01, 0.3)) = 0.08
@@ -34,15 +32,12 @@ Shader "Unlit/LiquidStar"
             {
                 float4 vertex : POSITION;
                 float2 uv : TEXCOORD0;
-                float3 normal : NORMAL;
             };
 
             struct v2f
             {
                 float2 uv : TEXCOORD0;
                 float4 vertex : SV_POSITION;
-                float3 worldNormal : TEXCOORD1;
-                float3 worldPos : TEXCOORD2;
             };
 
             float _Speed;
@@ -50,8 +45,6 @@ Shader "Unlit/LiquidStar"
             float4 _BaseColor;
             float4 _HotColor;
             float4 _SpotColor;
-            float _SpotScale;
-            float _SpotThreshold;
             float _GlowIntensity;
             float _Turbulence;
             float _EdgeSoftness;
@@ -145,8 +138,6 @@ Shader "Unlit/LiquidStar"
                 v2f o;
                 o.vertex = UnityObjectToClipPos(v.vertex);
                 o.uv = v.uv;
-                o.worldNormal = UnityObjectToWorldNormal(v.normal);
-                o.worldPos = mul(unity_ObjectToWorld, v.vertex).xyz;
                 return o;
             }
 
@@ -165,44 +156,36 @@ Shader "Unlit/LiquidStar"
                 float time = _Time.y * _Speed;
 
                 // Use UV-based 3D coordinate for noise (flat plane, no sphere artifacts)
-                float3 p = float3(centeredUV * _Scale, time * 0.1);
+                float3 p = float3(centeredUV * _Scale, time * 0.02);
 
-                // Liquid flow - domain warping (4 octaves for island edges)
+                // Liquid flow - domain warping (2 octaves for island edges)
                 float3 q = float3(
-                    fbm(p + float3(0.0, 0.0, time * 0.3), 4),
-                    fbm(p + float3(5.2, 1.3, time * 0.25), 4),
-                    fbm(p + float3(1.7, 9.2, time * 0.35), 4)
+                    fbm(p + float3(0.0, 0.0, time * 0.06), 2),
+                    fbm(p + float3(5.2, 1.3, time * 0.05), 2),
+                    fbm(p + float3(1.7, 9.2, time * 0.07), 2)
                 );
 
-                // Inner layers - low octaves for smooth fills
+                // Inner layer - single pass smooth fill
                 float3 r = float3(
-                    fbm(p + _Turbulence * q + float3(1.7, 9.2, time * 0.15), 1),
-                    fbm(p + _Turbulence * q + float3(8.3, 2.8, time * 0.2), 1),
-                    fbm(p + _Turbulence * q + float3(3.1, 6.5, time * 0.1), 1)
+                    snoise(p + _Turbulence * q + float3(1.7, 9.2, time * 0.03)),
+                    snoise(p + _Turbulence * q + float3(8.3, 2.8, time * 0.04)),
+                    snoise(p + _Turbulence * q + float3(3.1, 6.5, time * 0.02))
                 );
 
-                float liquidPattern = fbm(p + _Turbulence * r, 1);
-
-                // Sunspots - low frequency
-                float3 spotP = float3(centeredUV * _SpotScale, time * 0.05);
-                float spotNoise = fbm(spotP + float3(time * 0.05, time * 0.03, time * 0.07), 2);
-
-                // Darken areas where noise is below threshold = sunspots
-                float spotMask = smoothstep(_SpotThreshold - 0.15, _SpotThreshold, spotNoise);
+                float liquidPattern = snoise(p + _Turbulence * r);
 
                 // Convection cells - granulation pattern
-                float granulation = snoise(float3(centeredUV * _Scale * 3.0, time * 0.4));
+                float granulation = snoise(float3(centeredUV * _Scale * 3.0, time * 0.08));
                 granulation = granulation * 0.5 + 0.5;
 
-                // Blend colors
+                // Blend colors - use granulation heavily for contrast
                 float heatMap = liquidPattern * 0.5 + 0.5;
-                heatMap = saturate(heatMap + granulation * 0.2);
+                heatMap = saturate(heatMap * granulation);
+                heatMap = pow(heatMap, 0.7);
 
                 // Base liquid surface color
-                float3 col = lerp(_BaseColor.rgb, _HotColor.rgb, pow(heatMap, 1.5));
-
-                // Apply sunspots (dark cooler regions)
-                col = lerp(_SpotColor.rgb, col, spotMask);
+                float3 col = lerp(_SpotColor.rgb, _BaseColor.rgb, heatMap);
+                col = lerp(col, _HotColor.rgb, pow(heatMap, 2.5));
 
                 // Limb darkening - darken edges of the star disk
                 float limbDarken = 1.0 - pow(dist, 2.0);