diff --git a/libs/MVS/SceneTexture.cpp b/libs/MVS/SceneTexture.cpp
index debfb21..c5cf658 100644
--- a/libs/MVS/SceneTexture.cpp
+++ b/libs/MVS/SceneTexture.cpp
@@ -15826,6 +15826,21 @@ void MeshTexture::ApplyGlobalSeamLevelingOnRCPatches(
         scene.mesh.ListIncidenteFaceFaces();
 
     seamEdges.clear(); seamVertices.clear();
+
+	// // 填充 faceToPatchID
+	// faceToPatchID.assign(scene.mesh.faces.size(), NO_ID);
+	// for (size_t pi = 0; pi < rcPatches.size(); ++pi) {
+	// 	if (rcToTexPatch[pi] == NO_ID) continue;
+	// 	uint32_t texPatchID = rcToTexPatch[pi];
+	// 	for (FIndex vfID : rcPatches[pi].faces) {
+	// 		if (vfID >= virtualFaceMap.size()) continue;
+	// 		for (FIndex fid : virtualFaceMap[vfID].faces) {
+	// 			if (fid < faceToPatchID.size())
+	// 				faceToPatchID[fid] = texPatchID;
+	// 		}
+	// 	}
+	// }
+
     BuildSeamEdgesFromFaceToPatchID();
     CreateSeamVertices();
 
@@ -15845,6 +15860,7 @@ void MeshTexture::ApplyGlobalSeamLevelingOnRCPatches(
 			}
 		}
 	}
+	// faceTexcoords = localFaceTexcoords;
 
     DEBUG_EXTRA("Bridge done: %zu texturePatches ready, calling GlobalSeamLeveling4...", numValidPatches);
 
@@ -16344,6 +16360,12 @@ bool MeshTexture::RasterizeVirtualFaces(
         cv::Mat patch;
         cv::remap(srcImg.image, patch, mapX, mapY, cv::INTER_NEAREST, cv::BORDER_CONSTANT, cv::Scalar(0,0,0));
 
+// ============================================================
+        // ★ 光度校正：光栅化阶段不再应用 gain
+        //   GSL4 会统一做全局颜色优化，这里乘了会导致双重校正
+        //   如果后续不走 GSL4 流程，可以把下面 false 改为 true 恢复
+// ============================================================
+#if 0  // ← 改为 1 可临时恢复光栅化时乘 gain
         // 应用光度校正
         const cv::Vec3f& gain = (viewID < (IIndex)m_imageGains.size()) ? m_imageGains[viewID] : cv::Vec3f(1,1,1);
         const bool applyGain = (gain != cv::Vec3f(1,1,1));
@@ -16358,6 +16380,7 @@ bool MeshTexture::RasterizeVirtualFaces(
                 }
             }
         }
+#endif
 
         // 写入 atlas（最高分胜出）
         #pragma omp critical (atlas_write)
@@ -16376,9 +16399,9 @@ bool MeshTexture::RasterizeVirtualFaces(
                     // ★ 已删除错误放在这里的 m_texelPatchID.assign(...)
 
                     if (currentScore > m_texelScores[idx].score) {
-						color[0] = cv::saturate_cast<uchar>(std::min(255.0f, color[0] * 1.05f));
-						color[1] = cv::saturate_cast<uchar>(std::min(255.0f, color[1] * 1.05f));
-						color[2] = cv::saturate_cast<uchar>(std::min(255.0f, color[2] * 1.05f));
+						color[0] = cv::saturate_cast<uchar>(std::min(255.0f, color[0] * 1.0f));
+						color[1] = cv::saturate_cast<uchar>(std::min(255.0f, color[1] * 1.0f));
+						color[2] = cv::saturate_cast<uchar>(std::min(255.0f, color[2] * 1.0f));
 
                         // atlas(atlasY, atlasX) = Pixel8U{color[2], color[1], color[0]};
 						if (atlasY >= 0 && atlasY < atlas.rows && atlasX >= 0 && atlasX < atlas.cols) {