优化调试过程，避免刷屏。

更好的调试效果。

Runtime/MeshDetection_URP/GeoLayerPickerRenderPassFeature.cs

@@ -40,6 +40,7 @@ namespace XericLibrary.PostProcess
             {
                 return GeoLayerPickerRenderPassFeature.Instance.GetMaterialByID(matID);
             }
+
             return null;
         }
 
@@ -84,6 +85,7 @@ namespace XericLibrary.PostProcess
             {
                 return GeoLayerPickerRenderPassFeature.Instance.GetMaterialByID(matID);
             }
+
             return null;
         }
 
@@ -146,6 +148,7 @@ namespace XericLibrary.PostProcess
             {
                 camera = Camera.main;
             }
+
             if (camera == null)
                 return Vector2.zero;
 
@@ -158,6 +161,7 @@ namespace XericLibrary.PostProcess
             {
                 camera = Camera.main;
             }
+
             if (camera == null)
                 return Vector2.zero;
 
@@ -212,6 +216,7 @@ namespace XericLibrary.PostProcess
             {
                 return material;
             }
+
             return null;
         }
 
@@ -221,6 +226,7 @@ namespace XericLibrary.PostProcess
             {
                 return id;
             }
+
             return -1;
         }
 
@@ -356,10 +362,12 @@ namespace XericLibrary.PostProcess
 
             if (enableDebugLog)
             {
-                Debug.Log($"[GeoLayerPicker] 材质孤岛统计完成，共 {m_MaterialIslands.Count} 个孤岛");
+                using (MacroMath.GetStringBuilder(out var sb))
-                foreach (var island in m_MaterialIslands)
                 {
-                    Debug.Log($"  MatID {island.matID} ({island.GetMaterialName()}): {island.totalPixelCount} 像素, 中心: {island.centerWorldPos}");
+                    foreach (var island in m_MaterialIslands)
+                        sb.Append(
+                            $"  MatID {island.matID} ({island.GetMaterialName()}): {island.totalPixelCount} 像素, 中心: {island.centerWorldPos}");
+                    Debug.Log($"[GeoLayerPicker] 材质孤岛统计完成，共 {m_MaterialIslands.Count} 个孤岛\n{sb.ToString()}");
                 }
             }
         }
@@ -423,6 +431,7 @@ namespace XericLibrary.PostProcess
                     {
                         break;
                     }
+
                     col++;
                 }
 
@@ -438,7 +447,8 @@ namespace XericLibrary.PostProcess
             return segments;
         }
 
-        private List<MaterialIsland> BuildIslandsForMaterial(int targetMatID, List<List<MaterialSegment>> rowSegments, int width, int height)
+        private List<MaterialIsland> BuildIslandsForMaterial(int targetMatID, List<List<MaterialSegment>> rowSegments,
+            int width, int height)
         {
             List<MaterialIsland> islands = new List<MaterialIsland>();
 
@@ -493,6 +503,7 @@ namespace XericLibrary.PostProcess
                             mergedIsland.segments.AddRange(islandToMerge.segments);
                             islands.Remove(islandToMerge);
                         }
+
                         mergedIsland.segments.Add(currentSegment);
                         islands.Add(mergedIsland);
                     }
@@ -540,6 +551,7 @@ namespace XericLibrary.PostProcess
                     {
                         rowPixelCounts[seg.rowIndex] = 0;
                     }
+
                     rowPixelCounts[seg.rowIndex] += seg.length;
                 }
 
@@ -642,10 +654,15 @@ namespace XericLibrary.PostProcess
                 float ndcYMin = passSampleRect.y * 2f - 1f;
                 float ndcYMax = (passSampleRect.y + passSampleRect.height) * 2f - 1f;
 
+                // 将 NDC 子区域 [ndcMin, ndcMax] 映射到 [-1, 1]
+                // 投影矩阵变换: ndc = -m00 * viewX/viewZ - m02
+                // 修改后: ndc_new = scale * ndc_original - offset
+                // ndcMin → -1:  scale * ndcMin - offset = -1  →  offset = scale * ndcMin + 1
+                // ndcMax → +1:  scale * ndcMax - offset = +1  →  scale = 2/(ndcMax - ndcMin)
                 float scaleX = 2f / (ndcXMax - ndcXMin);
                 float scaleY = 2f / (ndcYMax - ndcYMin);
-                    float offsetX = -1f - ndcXMin * scaleX;
+                float offsetX = 1f + ndcXMin * scaleX;
-                    float offsetY = -1f - ndcYMin * scaleY;
+                float offsetY = 1f + ndcYMin * scaleY;
 
                 projMatrix.m00 *= scaleX;
                 projMatrix.m11 *= scaleY;
@@ -696,40 +713,47 @@ namespace XericLibrary.PostProcess
 
             public override void Execute(ScriptableRenderContext context, ref RenderingData renderingData)
             {
-                    if (!s_HasLogged && GeoLayerPickerRenderPassFeature.Instance != null && GeoLayerPickerRenderPassFeature.Instance.enableDebugLog)
+                if (!s_HasLogged && GeoLayerPickerRenderPassFeature.Instance != null &&
+                    GeoLayerPickerRenderPassFeature.Instance.enableDebugLog)
                 {
-                        Debug.Log($"[GeoLayerPicker] DebugOverlayRenderPass.Execute called");
+                    Debug.Log($"[GeoLayerPicker] DebugOverlayRenderPass.Execute called" +
-                        Debug.Log($"  overlayMaterial: {(overlayMaterial != null ? "OK" : "null")}");
+                    $"  overlayMaterial: {(overlayMaterial != null ? "OK" : "null")}" +
-                        Debug.Log($"  sourceRTHandle: {(sourceRTHandle != null ? "OK" : "null")}");
+                    $"  sourceRTHandle: {(sourceRTHandle != null ? "OK" : "null")}" +
-                        Debug.Log($"  sampleRect: {sampleRect}");
+                    $"  sampleRect: {sampleRect}");
                     s_HasLogged = true;
                 }
 
                 if (overlayMaterial == null)
                 {
-                        if (GeoLayerPickerRenderPassFeature.Instance != null && GeoLayerPickerRenderPassFeature.Instance.enableDebugLog)
+                    if (GeoLayerPickerRenderPassFeature.Instance != null &&
+                        GeoLayerPickerRenderPassFeature.Instance.enableDebugLog)
                     {
                         Debug.LogWarning("[GeoLayerPicker] DebugOverlayRenderPass: overlayMaterial is null");
                     }
+
                     return;
                 }
 
                 if (sourceRTHandle == null)
                 {
-                        if (GeoLayerPickerRenderPassFeature.Instance != null && GeoLayerPickerRenderPassFeature.Instance.enableDebugLog)
+                    if (GeoLayerPickerRenderPassFeature.Instance != null &&
+                        GeoLayerPickerRenderPassFeature.Instance.enableDebugLog)
                     {
                         Debug.LogWarning("[GeoLayerPicker] DebugOverlayRenderPass: sourceRTHandle is null");
                     }
+
                     return;
                 }
 
                 RTHandle currentColorTarget = renderingData.cameraData.renderer.cameraColorTargetHandle;
                 if (currentColorTarget == null)
                 {
-                        if (GeoLayerPickerRenderPassFeature.Instance != null && GeoLayerPickerRenderPassFeature.Instance.enableDebugLog)
+                    if (GeoLayerPickerRenderPassFeature.Instance != null &&
+                        GeoLayerPickerRenderPassFeature.Instance.enableDebugLog)
                     {
                         Debug.LogWarning("[GeoLayerPicker] DebugOverlayRenderPass: currentColorTarget is null");
                     }
+
                     return;
                 }
 
@@ -747,7 +771,8 @@ namespace XericLibrary.PostProcess
                 ));
 
                 CoreUtils.SetRenderTarget(debugCmd, currentColorTarget);
-                    debugCmd.SetViewport(new Rect(0, 0, renderingData.cameraData.camera.pixelWidth, renderingData.cameraData.camera.pixelHeight));
+                debugCmd.SetViewport(new Rect(0, 0, renderingData.cameraData.camera.pixelWidth,
+                    renderingData.cameraData.camera.pixelHeight));
 
                 debugCmd.DrawProcedural(
                     Matrix4x4.identity,
@@ -827,7 +852,8 @@ namespace XericLibrary.PostProcess
                 }
                 else
                 {
-                    Debug.LogError("[GeoLayerPicker] 找不到调试 Shader: Hidden/XericLibrary/GeoLayerPicker/ScreenOverrideRect");
+                    Debug.LogError(
+                        "[GeoLayerPicker] 找不到调试 Shader: Hidden/XericLibrary/GeoLayerPicker/ScreenOverrideRect");
                 }
             }
         }
@@ -988,10 +1014,11 @@ namespace XericLibrary.PostProcess
 
             if (enableDebugLog)
             {
-                Debug.Log($"[GeoLayerPicker] 材质映射重建完成，共 {m_MaterialToID.Count} 个材质");
+                using (MacroMath.GetStringBuilder(out var sb))
-                foreach (var kvp in m_MaterialToID)
                 {
-                    Debug.Log($"  ID {kvp.Value}: {kvp.Key.name}");
+                    foreach (var kvp in m_MaterialToID)
+                        sb.Append($"  ID {kvp.Value}: {kvp.Key.name}");
+                    Debug.Log($"[GeoLayerPicker] 材质映射重建完成，共 {m_MaterialToID.Count} 个材质 \n{sb.ToString()}");
                 }
             }
         }

Runtime/MeshDetection_URP/ScreenOverrideRect.shader

@@ -75,8 +75,8 @@ Shader "Hidden/XericLibrary/GeoLayerPicker/ScreenOverrideRect"
                 }
                 
                 // 将世界坐标映射为可见颜色
-                float3 debugColor = abs(sin(col.rgb * float3(0.03, 0.1, 0.05))) * 0.5;
+                float3 debugColor = sin(col.rgb * float3(0.03, 0.1, 0.05)) * 0.5 + 0.5;
-                float3 debugColor2 = abs(cos(col.rgb * float3(0.05, 0.09, 0.07))) * 0.5 + 0.5;
+                float3 debugColor2 = cos(col.rgb * float3(0.05, 0.09, 0.07)) * 0.5 + 0.5;
                 float matIDColor = frac(col.a * 0.07);
                 debugColor = lerp(debugColor, debugColor2, matIDColor);
                 return float4(debugColor, 0.9);