Replace TownSquare with HomeCamp art and land humanoid bots, LittleBear, and LmGirl review assets.

Co-authored-by: Cursor <cursoragent@cursor.com>

AIClient/Assets/Bundles/Shaders/XShader/XTerrain_Base.hlsl

@@ -17,10 +17,13 @@ half	_BumpScale;
 half	_Roughness;
 half	_Metallic;
 half	_AO;
-half	_EmissiveIntensity;
-half	_useCustomGI;
-half3	_CustomGIColor;
+	half	_EmissiveIntensity;
+	half	_useCustomGI;
+	half3	_CustomGIColor;
 float4  _LayerTex0_TexelSize;
+	half	_LightmapContrast;
+	half	_LightmapShadeMul;
+	half3	_LightmapShadeTint;
 CBUFFER_END
 half _XRuntimeAmbientEnabled;
 half4 _XRuntimeAmbientSky;
@@ -144,13 +147,22 @@ void InitializeInputData(Varyings input, half3 normalTS, out InputData inputData
     inputData.bakedGI = SAMPLE_GI(input.staticLightmapUV, input.dynamicLightmapUV, input.vertexSH, inputData.normalWS);
 #elif defined(LIGHTMAP_ON)
     inputData.bakedGI = SAMPLE_GI(input.staticLightmapUV, input.vertexSH, inputData.normalWS);
+    // Open crushed shade: gamma < 1 + cool fill into darks so plaza shade stays PBR, not ink.
+    {
+        half3 gi = max(inputData.bakedGI, half3(0, 0, 0));
+        gi = pow(gi, max(_LightmapContrast, half(0.05)));
+        half lum = saturate(dot(gi, half3(0.2126h, 0.7152h, 0.0722h)));
+        half3 fill = _LightmapShadeTint * max(_LightmapShadeMul, half(0.05)) * half(0.22);
+        inputData.bakedGI = gi + fill * (half(1) - lum);
+    }
 #else
     inputData.bakedGI = SampleSH(inputData.normalWS);
 #endif
-    // 仅在运行时全局环境光开启后才覆盖（Game.cs 设置）；否则保留场景自身 SH/光照贴图，
-    // 避免编辑器预览比 URP Lit 亮（旧写法无条件覆盖成硬编码的高强度三色环境光）
+    // Runtime ambient is for probe/SH meshes only — never replace lightmaps (that erases baked cast shadows).
+#if !defined(LIGHTMAP_ON) && !defined(DYNAMICLIGHTMAP_ON)
     if (_XRuntimeAmbientEnabled > 0.5h)
         inputData.bakedGI = SampleXRuntimeAmbient(inputData.normalWS);
+#endif
 
     inputData.normalizedScreenSpaceUV = GetNormalizedScreenSpaceUV(input.positionCS);
     inputData.shadowMask = SAMPLE_SHADOWMASK(input.staticLightmapUV);