修改为单独调整shader

unity/Assets/Light/shaders/IndianOcean_DarknessOverlay.mat

@@ -31,7 +31,7 @@ Material:
     - _EchoRadius: 39.41617
     - _EchoWidth: 2.5
     - _LightSoftness: 1
-    - _MinBrightness: 0
+    - _MinBrightness: 1
     m_Colors:
     - _DarknessColor: {r: 0.01, g: 0.01, b: 0.02, a: 1}
     - _EchoCenter: {r: -2.4399998, g: -1.5000057, b: 0, a: 0}

unity/Assets/Light/shaders/SpriteWithGroundClip.shader

@@ -18,6 +18,11 @@ Shader "Custom/SpriteWithGroundClip"
         
         // 颜色
         _Color ("颜色", Color) = (1, 1, 1, 1)
+        
+        // 光照设置
+        _LightIntensity ("光照强度", Range(0, 2)) = 1.0
+        _AmbientColor ("环境光颜色", Color) = (0.3, 0.3, 0.3, 1.0)
+        [MaterialToggle] _ReceiveLighting ("接受光照", Float) = 1.0
     }
     SubShader
     {
@@ -68,6 +73,9 @@ Shader "Custom/SpriteWithGroundClip"
                 float _GroundHeight;
                 float _EnableClip;
                 float _ClipSoftness;
+                float _LightIntensity;
+                float4 _AmbientColor;
+                float _ReceiveLighting;
             CBUFFER_END
 
             TEXTURE2D(_MainTex);
@@ -94,9 +102,19 @@ Shader "Custom/SpriteWithGroundClip"
                 half4 texColor = SAMPLE_TEXTURE2D(_MainTex, sampler_MainTex, input.uv);
                 half4 color = texColor * input.color * _Color;
 
-                // 直接接受 Directional Light 的颜色和强度（color 已包含 intensity）
+                // 光照计算
+                if (_ReceiveLighting > 0.5)
+                {
+                    // 获取主光源（颜色已包含强度）
                     Light mainLight = GetMainLight();
-                color.rgb *= mainLight.color;
+                    half3 lightColor = mainLight.color;
+
+                    // Sprite无网格法线，直接用光源颜色作为受光亮度
+                    // 环境光提供基础亮度，漫反射光叠加方向光颜色
+                    half3 ambient = _AmbientColor.rgb;
+                    half3 diffuse = lightColor * _LightIntensity;
+                    color.rgb *= (ambient + diffuse);
+                }
 
                 // 地面裁剪逻辑
                 if (_EnableClip > 0.5)
@@ -168,6 +186,9 @@ Shader "Custom/SpriteWithGroundClip"
                 float _ShadowOpacity;
                 float _ShadowOffset;
                 float4 _ShadowColor;
+                float _LightIntensity;
+                float4 _AmbientColor;
+                float _ReceiveLighting;
             CBUFFER_END
 
             TEXTURE2D(_MainTex);

unity/Assets/Light/shaders/WaterReflection.shader

@@ -192,7 +192,7 @@ Shader "IndianOcean/WaterReflection"
 
                 // UI 裁剪矩形裁剪
                 #ifdef UNITY_UI_CLIP_RECT
-                    float2 clipPos = positionCS.xy;
+                    float2 clipPos = input.positionCS.xy;
                     float clip = 1.0;
                     clip *= step(0.0, clipPos.x - _ClipRect.x);
                     clip *= step(0.0, clipPos.y - _ClipRect.y);

unity/Assets/Materials/cloud1_GroundClipMat.mat

@@ -13,7 +13,9 @@ Material:
   m_ModifiedSerializedProperties: 0
   m_ValidKeywords: []
   m_InvalidKeywords:
+  - _CASTSHADOW_ON
   - _ENABLECLIP_ON
+  - _RECEIVELIGHTING_ON
   m_LightmapFlags: 4
   m_EnableInstancingVariants: 0
   m_DoubleSidedGI: 0
@@ -30,9 +32,16 @@ Material:
         m_Offset: {x: 0, y: 0}
     m_Ints: []
     m_Floats:
+    - _CastShadow: 1
     - _ClipSoftness: 0.05
     - _EnableClip: 1
     - _GroundHeight: 0
+    - _LightIntensity: 1
+    - _ReceiveLighting: 1
+    - _ShadowOffset: -0.1
+    - _ShadowOpacity: 0.5
     m_Colors:
+    - _AmbientColor: {r: 1, g: 1, b: 1, a: 1}
     - _Color: {r: 1, g: 1, b: 1, a: 1}
+    - _ShadowColor: {r: 0, g: 0, b: 0, a: 0.5}
   m_BuildTextureStacks: []

unity/Assets/Scenes/Gameplay.unity

@@ -371,7 +371,7 @@ MonoBehaviour:
   m_Name: 
   m_EditorClassIdentifier: 
   darknessMaterial: {fileID: 2100000, guid: 6dd18d2379aff3040813ab8005b1898a, type: 2}
-  debugShowAll: 0
+  debugShowAll: 1
   minBrightness: 0
   darknessColor: {r: 0.01, g: 0.01, b: 0.02, a: 1}
   lightSoftness: 1

unity/UserSettings/EditorUserSettings.asset

@@ -30,10 +30,10 @@ EditorUserSettings:
       value: 5a5757560101590a5d0c0e24427b5d44434e4c7a7b7a23677f2b4565b7b5353a
       flags: 0
     RecentlyUsedSceneGuid-8:
-      value: 5a55515156575a0b0f56592346260f444f16197c7e7f24697d2a4a32b1b0353e
+      value: 0209025f575750595c57092149765d444e4e49727e7c7068757b1c65b6e36c3b
       flags: 0
     RecentlyUsedSceneGuid-9:
-      value: 0209025f575750595c57092149765d444e4e49727e7c7068757b1c65b6e36c3b
+      value: 5a55515156575a0b0f56592346260f444f16197c7e7f24697d2a4a32b1b0353e
       flags: 0
     UnityEditor.ShaderGraph.Blackboard:
       value: 18135939215a0a5004000b0e15254b524c030a3f2964643d120d1230e9e93a3fd6e826abbd2e2d293c4ead313b08042de6030a0afa240c0d020be94c4ba75e435d8715fa32c70d15d11612dacc11fee5d3c5d1fe9ab1bf968e93e2ffcbc3e7e2f0b3ffe0e8b0be9af8ffaeffff8e85dd8390e3949c8899daa7