修改

unity/Assets/Light/shaders/AbyssBuilding.shader

@@ -0,0 +1,156 @@
+Shader "IndianOcean/AbyssBuilding"
+{
+    // 深渊边缘建筑 Shader v2
+    //
+    // 改进（vs v1）：
+    //   1. 世界坐标 Y 替代 UV.y —— 所有建筑在同一世界高度被吞，不受尺寸/Pivot/动画影响
+    //   2. 颜色和 Alpha 一起渐变 —— 黑暗"侵蚀"进去，而不是硬切
+    //   3. 噪声扰动吞没线 —— 边缘破碎，不是直线
+    //   4. 边缘侵蚀发光 —— 过渡带泛幽光，和 AbyssEdgeGlow 衔接
+    //
+    // Queue = Transparent（在 DarknessOverlay 之前渲染）
+    // DarknessOverlay 乘法遮罩控制最终可见性
+    //
+    // 搭配：
+    //   - AbyssEdgeGlow（Queue +200）放地图断层处
+    //   - AbyssGlowParticle（Queue +200）在深渊里撒粒子
+    //   - 建筑用此 shader，底部延伸到 _CutoffY 以下
+    Properties
+    {
+        _MainTex       ("精灵贴图", 2D) = "white" {}
+        _Color         ("色调", Color) = (1,1,1,1)
+        _CutoffY       ("深渊吞没线（世界 Y）", Float) = 0.0
+        _Feather       ("吞没渐变宽度（世界单位）", Float) = 1.5
+        _NoiseScale    ("噪声缩放（越大越细碎）", Float) = 3.0
+        _NoiseAmount   ("噪声强度 (0=直线 1=强烈破碎)", Range(0,1)) = 0.3
+        _EdgeColor     ("边缘侵蚀色", Color) = (0.15, 0.5, 0.8, 1.0)
+        _EdgeIntensity ("边缘亮度", Range(0, 5)) = 1.5
+    }
+    SubShader
+    {
+        Tags
+        {
+            "RenderType"      = "Transparent"
+            "Queue"           = "Transparent"
+            "RenderPipeline"  = "UniversalPipeline"
+            "CanUseSpriteAtlas" = "true"
+        }
+        Cull Off
+        ZWrite Off
+        Blend SrcAlpha OneMinusSrcAlpha
+
+        Pass
+        {
+            Name "AbyssBuilding"
+            HLSLPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+            #pragma multi_compile_instancing
+
+            #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
+
+            struct Attributes
+            {
+                float4 positionOS : POSITION;
+                float2 uv         : TEXCOORD0;
+                float4 color      : COLOR;
+                UNITY_VERTEX_INPUT_INSTANCE_ID
+            };
+
+            struct Varyings
+            {
+                float4 positionCS : SV_POSITION;
+                float2 uv         : TEXCOORD0;
+                float4 color      : COLOR;
+                float3 positionWS : TEXCOORD1;
+                UNITY_VERTEX_INPUT_INSTANCE_ID
+            };
+
+            CBUFFER_START(UnityPerMaterial)
+                float4 _MainTex_ST;
+                float4 _Color;
+                float  _CutoffY;
+                float  _Feather;
+                float  _NoiseScale;
+                float  _NoiseAmount;
+                float4 _EdgeColor;
+                float  _EdgeIntensity;
+            CBUFFER_END
+
+            TEXTURE2D(_MainTex);
+            SAMPLER(sampler_MainTex);
+
+            // ---- 简单 2D Value Noise（世界空间一致）----
+            float hash21(float2 p)
+            {
+                p = frac(p * float2(123.34, 456.21));
+                p += dot(p, p + 34.345);
+                return frac(p.x * p.y);
+            }
+
+            float noise2D(float2 p)
+            {
+                float2 i = floor(p);
+                float2 f = frac(p);
+                float a = hash21(i);
+                float b = hash21(i + float2(1, 0));
+                float c = hash21(i + float2(0, 1));
+                float d = hash21(i + float2(1, 1));
+                float2 u = f * f * (3.0 - 2.0 * f);
+                return lerp(lerp(a, b, u.x), lerp(c, d, u.x), u.y);
+            }
+
+            Varyings vert(Attributes input)
+            {
+                Varyings output;
+                UNITY_SETUP_INSTANCE_ID(input);
+                UNITY_TRANSFER_INSTANCE_ID(input, output);
+                output.positionWS  = TransformObjectToWorld(input.positionOS.xyz);
+                output.positionCS  = TransformWorldToHClip(output.positionWS);
+                output.uv          = input.uv;
+                output.color       = input.color;
+                return output;
+            }
+
+            half4 frag(Varyings input) : SV_Target
+            {
+                half4 tex    = SAMPLE_TEXTURE2D(_MainTex, sampler_MainTex, input.uv);
+                half3 albedo = tex.rgb * input.color.rgb * _Color.rgb;
+                half  alpha  = tex.a * input.color.a * _Color.a;
+
+                // ---- 世界坐标 Y 做吞没线 ----
+                float worldY = input.positionWS.y;
+
+                // 噪声扰动吞没线高度（基于世界 XZ，跨建筑一致）
+                float n = noise2D(input.positionWS.xz * _NoiseScale);
+                float noisyCutoff = _CutoffY + (n - 0.5) * _NoiseAmount * _Feather * 2.0;
+
+                // fade: 0 = 完全被吞, 1 = 完全可见
+                float fade = smoothstep(
+                    noisyCutoff - _Feather,
+                    noisyCutoff + _Feather,
+                    worldY
+                );
+
+                // ---- 颜色和 Alpha 一起渐变 ----
+                // 黑暗"吃进去"而不是硬切
+                half3 finalColor = albedo * fade;
+                half  finalAlpha = alpha * fade;
+
+                // ---- 边缘侵蚀发光 ----
+                // 在过渡带（fade ≈ 0.1~0.4）泛光，模拟深渊腐蚀边缘
+                float edge = smoothstep(0.0, 0.12, fade) * (1.0 - smoothstep(0.12, 0.45, fade));
+                finalColor += _EdgeColor.rgb * edge * _EdgeIntensity;
+                // 边缘也补一点 Alpha，让发光看得见
+                finalAlpha += edge * _EdgeIntensity * 0.3;
+
+                // 丢弃几乎全透明的像素
+                clip(finalAlpha - 0.001);
+
+                return half4(finalColor, finalAlpha);
+            }
+            ENDHLSL
+        }
+    }
+    FallBack Off
+}

unity/Assets/Light/shaders/AbyssBuilding.shader.meta

@@ -0,0 +1,9 @@
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+ShaderImporter:
+  externalObjects: {}
+  defaultTextures: []
+  nonModifiableTextures: []
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

unity/Assets/Light/shaders/AbyssEdgeGlow.shader

@@ -0,0 +1,77 @@
+Shader "IndianOcean/AbyssEdgeGlow"
+{
+    // 悬崖边缘发光线 Shader
+    // 加法混合 + Queue 3200（在黑暗遮罩之后渲染）
+    // UV.y = 1 在顶部（亮），UV.y = 0 在底部（暗）
+    // 用于 CliffWallBuilder 生成的边缘条带，勾勒地面断开处的轮廓
+    Properties
+    {
+        _Color ("发光颜色", Color) = (0.2, 0.6, 0.9, 1.0)
+        _Intensity ("亮度", Range(0.1, 5.0)) = 1.5
+        _Gradient ("渐变（越大边缘越硬）", Range(0.1, 3.0)) = 1.0
+    }
+    SubShader
+    {
+        Tags
+        {
+            "RenderType" = "Transparent"
+            "Queue" = "Transparent+200"
+            "RenderPipeline" = "UniversalPipeline"
+        }
+        Blend SrcAlpha One
+        ZWrite Off
+        ZTest LEqual
+        Cull Off
+
+        Pass
+        {
+            Name "EdgeGlow"
+            HLSLPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+            #pragma multi_compile_instancing
+
+            #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
+
+            struct Attributes
+            {
+                float4 positionOS : POSITION;
+                float2 uv : TEXCOORD0;
+                UNITY_VERTEX_INPUT_INSTANCE_ID
+            };
+
+            struct Varyings
+            {
+                float4 positionCS : SV_POSITION;
+                float2 uv : TEXCOORD0;
+                UNITY_VERTEX_INPUT_INSTANCE_ID
+            };
+
+            CBUFFER_START(UnityPerMaterial)
+                float4 _Color;
+                float  _Intensity;
+                float  _Gradient;
+            CBUFFER_END
+
+            Varyings vert(Attributes input)
+            {
+                Varyings output;
+                UNITY_SETUP_INSTANCE_ID(input);
+                UNITY_TRANSFER_INSTANCE_ID(input, output);
+                output.positionCS = TransformObjectToHClip(input.positionOS.xyz);
+                output.uv = input.uv;
+                return output;
+            }
+
+            half4 frag(Varyings input) : SV_Target
+            {
+                // UV.y: 1=顶部(亮), 0=底部(暗)
+                float glow = pow(input.uv.y, _Gradient);
+                float3 col = _Color.rgb * _Intensity;
+                return half4(col, glow);
+            }
+            ENDHLSL
+        }
+    }
+    FallBack Off
+}

unity/Assets/Light/shaders/AbyssEdgeGlow.shader.meta

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+  defaultTextures: []
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+  assetBundleName: 
+  assetBundleVariant: 

unity/Assets/Light/shaders/AbyssGlowParticle.shader

@@ -0,0 +1,94 @@
+Shader "IndianOcean/AbyssGlowParticle"
+{
+    // 深渊荧光粒子 Shader
+    // 加法混合 + Queue 3200（在 DarknessOverlay 的 3100 之后渲染）
+    // 不受乘法黑暗遮罩影响，在纯黑虚空中也能发光
+    // 程序化软圆点，不需要贴图
+    //
+    // 使用方式：
+    // 1. 创建材质，选此 shader
+    // 2. 材质赋给 ParticleSystem 的 Renderer > Material
+    // 3. 粒子贴图留空（程序化圆点），用 Vertex Color 控制颜色/透明度
+    Properties
+    {
+        _Color ("颜色", Color) = (1.0, 0.85, 0.4, 1.0)
+        _Softness ("柔和度（边缘渐变宽度）", Range(0.01, 1.0)) = 0.5
+        _Intensity ("亮度倍数", Range(0.1, 5.0)) = 1.0
+    }
+    SubShader
+    {
+        Tags
+        {
+            "RenderType" = "Transparent"
+            "Queue" = "Transparent+200"
+            "RenderPipeline" = "UniversalPipeline"
+        }
+        // alpha 加法混合：finalColor = src.rgb * src.a + dst.rgb
+        // 粒子在黑暗遮罩之后渲染，直接往画面上加光
+        Blend SrcAlpha One
+        ZWrite Off
+        ZTest LEqual
+        Cull Off
+
+        Pass
+        {
+            Name "AbyssGlow"
+            HLSLPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+            #pragma multi_compile_instancing
+
+            #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
+
+            struct Attributes
+            {
+                float4 positionOS : POSITION;
+                float2 uv : TEXCOORD0;
+                float4 color : COLOR; // 粒子系统顶点色（含生命周期 alpha）
+                UNITY_VERTEX_INPUT_INSTANCE_ID
+            };
+
+            struct Varyings
+            {
+                float4 positionCS : SV_POSITION;
+                float2 uv : TEXCOORD0;
+                float4 color : COLOR;
+                UNITY_VERTEX_INPUT_INSTANCE_ID
+            };
+
+            CBUFFER_START(UnityPerMaterial)
+                float4 _Color;
+                float  _Softness;
+                float  _Intensity;
+            CBUFFER_END
+
+            Varyings vert(Attributes input)
+            {
+                Varyings output;
+                UNITY_SETUP_INSTANCE_ID(input);
+                UNITY_TRANSFER_INSTANCE_ID(input, output);
+                output.positionCS = TransformObjectToHClip(input.positionOS.xyz);
+                output.uv = input.uv;
+                output.color = input.color;
+                return output;
+            }
+
+            half4 frag(Varyings input) : SV_Target
+            {
+                // 程序化软圆点：UV 中心 (0.5,0.5) 到边缘的距离
+                float2 center = float2(0.5, 0.5);
+                float dist = distance(input.uv, center);
+                float softCircle = 1.0 - smoothstep(_Softness * 0.5, 0.5, dist);
+                softCircle = max(0.0, softCircle);
+
+                // 颜色 = 材质色 × 粒子顶点色 × 亮度 × 软圆形状
+                float3 col = _Color.rgb * input.color.rgb * _Intensity;
+                float alpha = softCircle * input.color.a;
+
+                return half4(col, alpha);
+            }
+            ENDHLSL
+        }
+    }
+    FallBack Off
+}

unity/Assets/Light/shaders/AbyssGlowParticle.shader.meta

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unity/Assets/Light/shaders/IndianOcean_AbyssBuilding.mat

@@ -0,0 +1,41 @@
+%YAML 1.1
+%TAG !u! tag:yousandi.cn,2023:
+--- !u!21 &2100000
+Material:
+  serializedVersion: 8
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_Name: IndianOcean_AbyssBuilding
+  m_Shader: {fileID: 4800000, guid: 757cdb56f31a23247b9e9c52e37fc9df, type: 3}
+  m_Parent: {fileID: 0}
+  m_ModifiedSerializedProperties: 0
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+  stringTagMap: {}
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+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    m_Ints: []
+    m_Floats:
+    - _CutoffY: 0
+    - _EdgeIntensity: 1.5
+    - _Feather: 1.5
+    - _Gradient: 0.1
+    - _NoiseAmount: 0.345
+    - _NoiseScale: 2
+    m_Colors:
+    - _Color: {r: 1, g: 1, b: 1, a: 1}
+    - _EdgeColor: {r: 0, g: 0, b: 0, a: 1}
+  m_BuildTextureStacks: []

unity/Assets/Light/shaders/IndianOcean_AbyssBuilding.mat.meta

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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/UserSettings/EditorUserSettings.asset

@@ -27,14 +27,14 @@ EditorUserSettings:
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-    RecentlyUsedSceneGuid-9:
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