From 3dff609cb89607afec6e98ed19742748e001bfa1 Mon Sep 17 00:00:00 2001
From: hesuicong <hesuicong@suwa3d.com>
Date: Wed, 19 Aug 2026 15:59:23 +0800
Subject: [PATCH] =?UTF-8?q?=E9=AB=98=E5=85=89=E6=8A=91=E5=88=B6?=
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---
 libs/MVS/SceneTexture.cpp | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/libs/MVS/SceneTexture.cpp b/libs/MVS/SceneTexture.cpp
index ba0757d..2db0fbf 100644
--- a/libs/MVS/SceneTexture.cpp
+++ b/libs/MVS/SceneTexture.cpp
@@ -10320,6 +10320,13 @@ void MeshTexture::GlobalSeamLeveling3()
 				const MatIdx col1(vertpatch2row.at(idxPatch1));
 				ASSERT(idxPatch0 < idxPatch1);
 				const MatIdx rowA((MatIdx)coeffB.size());
+
+				// ★ 新增：如果亮度差太大，说明一个是高光一个是暗区，跳过这个约束
+				const float lum0 = GetLuminance(color0);  // 或者用 Y 通道
+				const float lum1 = GetLuminance(color1);
+				if (std::abs(lum0 - lum1) > 50.0f)  // 阈值可调
+					continue;  // 不添加这个接缝约束，避免传播高光
+
 				coeffB.Insert(color1 - color0);
 				ASSERT(ISFINITE(coeffB.back()));
 				rows.emplace_back(rowA, col0,  1.f);
@@ -10428,6 +10435,17 @@ void MeshTexture::GlobalSeamLeveling3()
 				clamped_a[2] = CLAMP(a[2], -maxAdjC, maxAdjC);
 
 				const Color col(RGB2YCBCR(Color(v)));
+
+				// ★ 新增：如果已经很亮且调整量是正向的，跳过提亮
+				if (col[0] > 210.0f && a[0] > 0.0f) {
+					// 已经够亮了，不再加亮度（但允许降亮度，也允许调色度）
+					clamped_a[0] = 0.0f;
+				} else {
+					clamped_a[0] = CLAMP(a[0], -maxAdjY, maxAdjY);
+				}
+				clamped_a[1] = CLAMP(a[1], -maxAdjC, maxAdjC);
+				clamped_a[2] = CLAMP(a[2], -maxAdjC, maxAdjC);
+
 				const Color acol(YCBCR2RGB(Color(col + clamped_a)));
 				for (int p = 0; p < 3; ++p)
 					v[p] = (uint8_t)CLAMP(ROUND2INT(acol[p]), 0, 255);