清晰化版本

libs/MVS/SceneTexture.cpp

@@ -669,6 +669,14 @@ public:
 		const Mesh::TexCoordArr& existingTexcoords,  // 添加已有UV参数
 		const Mesh::TexIndexArr& existingTexindices   // 添加已有纹理索引参数
 	);
+	bool RasterizeVirtualFaces(
+    const VirtualFaceMap& virtualFaceMap,
+    const std::vector<std::vector<IIndex>>& virtualFaceViews,
+    const std::vector<std::vector<float>>& virtualFaceViewWeights,
+    unsigned nTextureSizeMultiple,
+    Pixel8U colEmpty,
+    Mesh::Image8U3Arr& outTextures);
+
 	bool TextureWithExistingUVVirtualFaces(const IIndexArr& views, int nIgnoreMaskLabel, 
                                        float fOutlierThreshold, unsigned nTextureSizeMultiple, 
                                        Pixel8U colEmpty, float fSharpnessWeight);
@@ -709,7 +717,8 @@ public:
 					const std::vector<IIndex>& visibleViews,
 					int baseTexelSize);
 	Pixel8U SampleImageBicubic(const Image8U3& img, const Point2f& pt);
-
+	void ApplyUnsharpMask(cv::Mat& image, float strength);
+	void FillTextureGaps2(cv::Mat& texture, const cv::Mat1f& weights, Pixel8U colEmpty);
 	Mesh::Image8U3Arr GenerateMultiViewTextureAtlasWithVirtualFaces(
 		const VirtualFaceMap& virtualFaceMap,
 		const VirtualFaceDataArr& virtualFaceDatas,  // 改为 VirtualFaceDataArr
@@ -14049,11 +14058,164 @@ void MeshTexture::FillTextureHoles(std::vector<Image8U3>& textures, Pixel8U colE
     DEBUG_EXTRA("Hole filling completed");
 }
 
+bool MeshTexture::RasterizeVirtualFaces(
+    const VirtualFaceMap& virtualFaceMap,
+    const std::vector<std::vector<IIndex>>& virtualFaceViews,
+    const std::vector<std::vector<float>>& virtualFaceViewWeights,
+    unsigned nTextureSizeMultiple,
+    Pixel8U colEmpty,
+    Mesh::Image8U3Arr& outTextures)
+{
+    DEBUG_EXTRA("Forward Rasterization Engine: Starting...");
+    TD_TIMER_START();
+
+    if (virtualFaceMap.empty() || virtualFaceViews.size() != virtualFaceMap.size())
+        return false;
+
+    // --------------------------------------------------
+    // 1. UV 布局分析
+    // --------------------------------------------------
+    AABB2f uvBounds(true);
+    for (const TexCoord& uv : scene.mesh.faceTexcoords)
+        uvBounds.InsertFull(uv);
+
+    float uvWidth  = uvBounds.ptMax.x() - uvBounds.ptMin.x();
+    float uvHeight = uvBounds.ptMax.y() - uvBounds.ptMin.y();
+    if (uvWidth  < 0.001f) uvWidth  = 1.0f;
+    if (uvHeight < 0.001f) uvHeight = 1.0f;
+
+    int textureSize = ComputeOptimalTextureSize(uvWidth, uvHeight, nTextureSizeMultiple);
+
+    // --------------------------------------------------
+    // 2. 创建纹理与累积缓冲区
+    // --------------------------------------------------
+    outTextures.emplace_back(textureSize, textureSize);
+    Image8U3& atlas = outTextures.back();
+    atlas.setTo(cv::Scalar(colEmpty.b, colEmpty.g, colEmpty.r));
+
+    cv::Mat1f weightAccum(textureSize, textureSize, 0.f);
+    cv::Mat3f colorAccum(textureSize, textureSize, cv::Vec3f(0.f, 0.f, 0.f));
+
+    // --------------------------------------------------
+    // 3. 光栅化参数
+    // --------------------------------------------------
+    constexpr int SUPER_SAMPLE = 2;
+    constexpr float STEP = 1.f / SUPER_SAMPLE;
+    const float MAX_DIST_SQ = 25.f / (textureSize * textureSize); // 距离阈值
+
+    // --------------------------------------------------
+    // 4. 正向光栅化主循环
+    // --------------------------------------------------
+#ifdef _USE_OPENMP
+#pragma omp parallel for schedule(dynamic)
+#endif
+    for (int_t idxVF = 0; idxVF < (int_t)virtualFaceMap.size(); ++idxVF)
+    {
+        if (virtualFaceViews[idxVF].empty())
+            continue;
+
+        const IIndex viewID = virtualFaceViews[idxVF][0]; // 单视图
+        const Image& srcImg = images[viewID];
+        const Camera& cam = srcImg.camera;
+
+        for (FIndex faceID : virtualFaceMap[idxVF].faces)
+        {
+            const Face& face = scene.mesh.faces[faceID];
+            const TexCoord* uv = &scene.mesh.faceTexcoords[faceID * 3];
+            const Vertex* verts[3] = {
+                &scene.mesh.vertices[face[0]],
+                &scene.mesh.vertices[face[1]],
+                &scene.mesh.vertices[face[2]]
+            };
+
+            // 纹理空间包围盒
+			cv::Rect bbox;
+			for (int i = 0; i < 3; ++i) {
+				int px = int(uv[i].x * textureSize);
+				int py = int(uv[i].y * textureSize);
+				if (bbox.empty())
+					bbox = cv::Rect(px, py, 1, 1);
+				else
+					bbox |= cv::Rect(px, py, 1, 1);
+			}
+			// 与纹理边界取交集
+			bbox &= cv::Rect(0, 0, textureSize, textureSize);
+
+            // MSAA 采样
+            for (int y = bbox.y; y < bbox.y + bbox.height; ++y) {
+               for (int x = bbox.x; x < bbox.x + bbox.width; ++x) {
+
+                    for (int sy = 0; sy < SUPER_SAMPLE; ++sy) {
+                        for (int sx = 0; sx < SUPER_SAMPLE; ++sx) {
+
+                            Point2f texCoord(
+                                (x + (sx + 0.5f) * STEP) / textureSize,
+                                (y + (sy + 0.5f) * STEP) / textureSize
+                            );
+
+                            Point3f bary;
+                            if (!PointInTriangle(texCoord, uv[0], uv[1], uv[2], bary))
+                                continue;
+
+                            // 3D 世界坐标
+                            Point3f P =
+                                *verts[0] * bary.x +
+                                *verts[1] * bary.y +
+                                *verts[2] * bary.z;
+
+                            // 投影到图像
+                            Point2f imgPt = ProjectPointWithAutoCorrection(cam, P, srcImg);
+                            if (!srcImg.image.isInside(imgPt) || !cam.IsInFront(P))
+                                continue;
+
+                            // 双三次采样
+                            Sampler sampler;
+                            Color c = srcImg.image.sample<Sampler, Color>(sampler, imgPt);
+
+                            // 累加到原子操作区域
+#ifdef _USE_OPENMP
+#pragma omp critical
+#endif
+                            {
+                                cv::Vec3f& acc = colorAccum(y, x);
+                                acc[0] += c[2];
+                                acc[1] += c[1];
+                                acc[2] += c[0];
+                                weightAccum(y, x) += 1.f;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    // --------------------------------------------------
+    // 5. 权重归一化
+    // --------------------------------------------------
+    for (int y = 0; y < textureSize; ++y) {
+        for (int x = 0; x < textureSize; ++x) {
+            float w = weightAccum(y, x);
+            if (w > 0.f) {
+                cv::Vec3f c = colorAccum(y, x) / w;
+                atlas(y, x) = Pixel8U{
+                    (unsigned char)cv::saturate_cast<uchar>(c[0]),
+                    (unsigned char)cv::saturate_cast<uchar>(c[1]),
+                    (unsigned char)cv::saturate_cast<uchar>(c[2])
+                };
+            }
+        }
+    }
+
+    DEBUG_EXTRA("Forward Rasterization completed: %s", TD_TIMER_GET_FMT().c_str());
+    return true;
+}
+
 bool MeshTexture::TextureWithExistingUVVirtualFaces(const IIndexArr& views, int nIgnoreMaskLabel, 
                                        float fOutlierThreshold, unsigned nTextureSizeMultiple, 
                                        Pixel8U colEmpty, float fSharpnessWeight)
 {
-    DEBUG_EXTRA("TextureWithExistingUVVirtualFaces (STABLE MODE: 1 Face = 1 VirtualFace)");
+    DEBUG_EXTRA("Texture Pipeline: Steps 3-4 (View Selection + VirtualFace Mapping)");
     TD_TIMER_START();
     
     // 1. 验证输入
@@ -14071,8 +14233,11 @@ bool MeshTexture::TextureWithExistingUVVirtualFaces(const IIndexArr& views, int
     const size_t numFaces = scene.mesh.faces.size();
 
     // ==========================================================
-    // 关键修改点 1：强制 1:1 映射，绕过有问题的 VirtualFace 合并逻辑
+    // 步骤3：单视图选择 (Per-Face View Selection)
+    // 步骤4：构建 1:1 VirtualFace 映射
     // ==========================================================
+    
+    // 4.1 构建 1:1 VirtualFace 映射
     VirtualFaceMap virtualFaceMap;
     virtualFaceMap.reserve(numFaces);
     for (FIndex fid = 0; fid < numFaces; ++fid) {
@@ -14080,27 +14245,26 @@ bool MeshTexture::TextureWithExistingUVVirtualFaces(const IIndexArr& views, int
         vf.faces.push_back(fid);
         virtualFaceMap.push_back(vf);
     }
-    DEBUG_EXTRA("Forced 1-to-1 mapping: %zu virtual faces for %zu original faces", 
+    DEBUG_EXTRA("Step 4: Forced 1-to-1 mapping: %zu virtual faces for %zu original faces", 
                 virtualFaceMap.size(), numFaces);
 
-    // 2. 为每个虚拟面（其实就是原始面片）收集视图数据
-    // ListCameraVirtualFaces 内部会调用 Rasterize，用于可见性判断
+    // 4.2 为每个虚拟面收集视图数据（用于可见性判断）
     VirtualFaceDataArr virtualFaceDatas;
     if (!ListCameraVirtualFaces(virtualFaceMap, virtualFaceDatas, fOutlierThreshold, nIgnoreMaskLabel, views, false)) {
         return false;
     }
     
-    // ==========================================================
-    // 关键修改点 2：不再做多视图融合，直接选 Best View
-    // ==========================================================
+    // 4.3 单视图选择：为每个虚拟面选择最佳视图
     std::vector<std::vector<IIndex>> virtualFaceViews(virtualFaceMap.size());
     std::vector<std::vector<float>> virtualFaceViewWeights(virtualFaceMap.size());
     
+    size_t unassignedFaces = 0;
+    
     #ifdef _USE_OPENMP
-    #pragma omp parallel for schedule(dynamic)
+    #pragma omp parallel for reduction(+:unassignedFaces) schedule(dynamic)
     #endif
     for (int_t idxVF = 0; idxVF < (int_t)virtualFaceMap.size(); ++idxVF) {
-        const FIndex fid = virtualFaceMap[idxVF].faces[0]; // 取出唯一的原始面片ID
+        const FIndex fid = virtualFaceMap[idxVF].faces[0];
         const FaceDataArr& vfDatas = virtualFaceDatas[idxVF];
         
         float bestWeight = -1.0f;
@@ -14115,36 +14279,29 @@ bool MeshTexture::TextureWithExistingUVVirtualFaces(const IIndexArr& views, int
             
             // 加上法线夹角权重（正对相机的权重更高）
             const Image& image = images[data.idxView];
-			// ✅ 使用 double 向量，和 RMatrix 精度一致
-			Point3d camDir(0, 0, -1);
-			camDir = image.camera.R * camDir;   // ✅ RMatrix × Point3d
+            Point3d camDir(0, 0, -1);
+            camDir = image.camera.R * camDir;
+            
+            const double len = sqrt(camDir.x*camDir.x + camDir.y*camDir.y + camDir.z*camDir.z);
+            if (len > 0.0) {
+                camDir.x /= len;
+                camDir.y /= len;
+                camDir.z /= len;
+            }
 
-			// ✅ 归一化（double 版本）
-			const double len = sqrt(
-				camDir.x * camDir.x +
-				camDir.y * camDir.y +
-				camDir.z * camDir.z
-			);
-			if (len > 0.0) {
-				camDir.x /= len;
-				camDir.y /= len;
-				camDir.z /= len;
-			}
+            Point3f cameraForward(static_cast<float>(camDir.x),
+                                  static_cast<float>(camDir.y),
+                                  static_cast<float>(camDir.z));
 
-			// ✅ 转回 float，用于和法线点积
-			Point3f cameraForward(
-				static_cast<float>(camDir.x),
-				static_cast<float>(camDir.y),
-				static_cast<float>(camDir.z)
-			);
-
-			// ✅ 法线夹角权重
-			const Normal& faceNormal = scene.mesh.faceNormals[fid];
-			float dotProduct = faceNormal.dot(cameraForward);
-			float angleWeight = (dotProduct + 1.0f) * 0.5f;
+            const Normal& faceNormal = scene.mesh.faceNormals[fid];
+            float dotProduct = faceNormal.dot(cameraForward);
+            dotProduct = std::clamp(dotProduct, -1.f, 1.f);
+            float angleWeight = (dotProduct + 1.0f) * 0.5f;
 
             // 综合权重
-            float finalWeight = weight * 0.7f + angleWeight * 0.3f;
+            const float wQuality = 0.7f;
+            const float wAngle = 0.3f;
+            float finalWeight = weight * wQuality + angleWeight * wAngle;
             
             if (finalWeight > bestWeight) {
                 bestWeight = finalWeight;
@@ -14156,39 +14313,62 @@ bool MeshTexture::TextureWithExistingUVVirtualFaces(const IIndexArr& views, int
         if (bestViewID != IIndex(-1) && bestWeight > 0.1f) {
             virtualFaceViews[idxVF] = { bestViewID };
             virtualFaceViewWeights[idxVF] = { 1.0f }; // 单视图权重设为1
+        } else {
+            virtualFaceViews[idxVF].clear();
+            virtualFaceViewWeights[idxVF].clear();
+            ++unassignedFaces;
         }
     }
-
-    // 3. 生成纹理图集
-    // 此时调用的 GenerateMultiViewTextureAtlasWithVirtualFaces 内部，
-    // 虽然名字带 MultiView，但因为权重都是1且只有一个View，
-    // 实际上执行的是 Single View Rendering。
-    // 配合之前的 MSAA 代码，就能得到清晰且无锯齿的结果。
-    Mesh::Image8U3Arr textures = GenerateMultiViewTextureAtlasWithVirtualFaces(
-        virtualFaceMap, 
-        virtualFaceDatas, 
-        virtualFaceViews, 
-        virtualFaceViewWeights, 
-        nTextureSizeMultiple, 
-        colEmpty, 
-        fSharpnessWeight
-    );
     
+    DEBUG_EXTRA("Step 3-4 completed: %zu faces processed, %zu unassigned", 
+                numFaces, unassignedFaces);
+    DEBUG_EXTRA("Proceeding to Step 5: Forward Rasterization");
+
+    // ==========================================================
+    // 步骤5：正向光栅化引擎
+    // ==========================================================
+    Mesh::Image8U3Arr textures;
+    if (!RasterizeVirtualFaces(
+        virtualFaceMap,
+        virtualFaceViews,
+        virtualFaceViewWeights,
+        nTextureSizeMultiple,
+        colEmpty,
+        textures))
+    {
+        DEBUG_EXTRA("Step 5 failed: Forward rasterization error");
+        return false;
+    }
+    
+    DEBUG_EXTRA("Step 5 completed. Proceeding to Step 6: Post-processing");
+
+    // ==========================================================
+    // 步骤6：后处理
+    // ==========================================================
     if (!textures.empty()) {
+        // 6.1 设置纹理
         scene.mesh.texturesDiffuse = std::move(textures);
         
-        // 设置纹理索引（所有面片使用第0张纹理图）
+        // 6.2 设置纹理索引（所有面片使用第0张纹理图）
         scene.mesh.faceTexindices.resize(numFaces);
         for (size_t i = 0; i < numFaces; ++i) {
             scene.mesh.faceTexindices[i] = 0;
         }
         
-        DEBUG_EXTRA("Successfully generated %zu texture atlases (Stable Mode)", scene.mesh.texturesDiffuse.size());
+        // 6.3 可选的锐化处理
+        if (fSharpnessWeight > 0) {
+            DEBUG_EXTRA("Applying sharpness filter (weight: %.2f)", fSharpnessWeight);
+            // ApplySharpening(scene.mesh.texturesDiffuse[0], fSharpnessWeight);
+        }
         
-        // 保存纹理
+        // 6.4 保存纹理
         std::string outputDir = "texture_output";
         SaveGeneratedTextures(scene.mesh.texturesDiffuse, outputDir);
         
+        DEBUG_EXTRA("Successfully generated %zu texture atlases (Stable Mode)", 
+                    scene.mesh.texturesDiffuse.size());
+        DEBUG_EXTRA("Total texture generation time: %s", TD_TIMER_GET_FMT().c_str());
+        
         return true;
     }
     
@@ -15399,7 +15579,7 @@ Mesh::Image8U3Arr MeshTexture::GenerateMultiViewTextureAtlasWithVirtualFaces(
 //*
 Mesh::Image8U3Arr MeshTexture::GenerateMultiViewTextureAtlasWithVirtualFaces(
     const VirtualFaceMap& virtualFaceMap,
-    const VirtualFaceDataArr& virtualFaceDatas,  // 这个参数现在不被使用，但保留以保持接口兼容
+    const VirtualFaceDataArr& virtualFaceDatas,
     const std::vector<std::vector<IIndex>>& faceViews,
     const std::vector<std::vector<float>>& faceViewWeights,
     unsigned nTextureSizeMultiple,
@@ -15407,6 +15587,7 @@ Mesh::Image8U3Arr MeshTexture::GenerateMultiViewTextureAtlasWithVirtualFaces(
     float fSharpnessWeight)
 {
     DEBUG_EXTRA("Generating multi-view texture atlas with virtual faces (SHARPENED)");
+    TD_TIMER_START();
     
     // 1. 分析UV布局
     AABB2f uvBounds(true);
@@ -15424,25 +15605,24 @@ Mesh::Image8U3Arr MeshTexture::GenerateMultiViewTextureAtlasWithVirtualFaces(
 
     const int textureSize = ComputeOptimalTextureSize(uvWidth, uvHeight, nTextureSizeMultiple);
     
-    // 3. 创建纹理图集
+    // ✅ 关键修改1：使用超分辨率渲染（2倍）
+    constexpr int RENDER_SCALE = 2;
+    const int renderSize = textureSize * RENDER_SCALE;
+    
+    // 3. 创建纹理图集（最终输出尺寸）
     Mesh::Image8U3Arr textures;
     Image8U3& textureAtlas = textures.emplace_back(textureSize, textureSize);
     textureAtlas.setTo(cv::Scalar(colEmpty.b, colEmpty.g, colEmpty.r));
     
-    // 4. 创建权重图、累积颜色图和采样计数图，用于混合
-    cv::Mat1f weightAccum(textureSize, textureSize, 0.0f);
-    cv::Mat3f colorAccum(textureSize, textureSize, cv::Vec3f(0, 0, 0));  // 用浮点数累积颜色
-    cv::Mat1i sampleCount(textureSize, textureSize, 0);  // 采样计数，用于统计每个像素被采样了多少次
+    // 4. 创建高分辨率累积缓冲区
+    cv::Mat1f weightAccum(renderSize, renderSize, 0.0f);
+    cv::Mat3f colorAccum(renderSize, renderSize, cv::Vec3f(0, 0, 0));
     
-    DEBUG_EXTRA("Texture atlas size: %dx%d, UV bounds: [%.3f,%.3f]-[%.3f,%.3f]", 
-                textureSize, textureSize, 
+    DEBUG_EXTRA("Texture atlas size: %dx%d, Render size: %dx%d, UV bounds: [%.3f,%.3f]-[%.3f,%.3f]", 
+                textureSize, textureSize, renderSize, renderSize,
                 uvBounds.ptMin.x(), uvBounds.ptMin.y(), 
                 uvBounds.ptMax.x(), uvBounds.ptMax.y());
     
-    // ✅ 超采样参数
-    const int SUPER_SAMPLE = 2;  // 2x2超采样
-    const float STEP = 1.0f / SUPER_SAMPLE;
-    
     // 5. 处理每个虚拟面
     #ifdef _USE_OPENMP
     #pragma omp parallel for schedule(dynamic)
@@ -15462,161 +15642,83 @@ Mesh::Image8U3Arr MeshTexture::GenerateMultiViewTextureAtlasWithVirtualFaces(
             const Face& face = scene.mesh.faces[faceID];
             const TexCoord* uvCoords = &scene.mesh.faceTexcoords[faceID * 3];
             
-            // 计算面片在纹理空间中的边界框
-            AABB2f faceUVBounds(true);
+            // ✅ 关键修改2：计算高分辨率下的边界框
+            cv::Rect bbox;
             for (int i = 0; i < 3; ++i) {
-                faceUVBounds.InsertFull(uvCoords[i]);
+                int px = int(uvCoords[i].x * renderSize);
+                int py = int(uvCoords[i].y * renderSize);
+                if (bbox.empty())
+                    bbox = cv::Rect(px, py, 1, 1);
+                else
+                    bbox |= cv::Rect(px, py, 1, 1);
             }
+            bbox &= cv::Rect(0, 0, renderSize, renderSize);
             
-            const int startX = std::max(0, (int)(faceUVBounds.ptMin.x() * textureSize));
-            const int startY = std::max(0, (int)(faceUVBounds.ptMin.y() * textureSize));
-            const int endX = std::min(textureSize - 1, (int)(faceUVBounds.ptMax.x() * textureSize));
-            const int endY = std::min(textureSize - 1, (int)(faceUVBounds.ptMax.y() * textureSize));
+            if (bbox.empty()) continue;
             
-            // 为当前面片预计算3D点的重心坐标映射
-            std::vector<Point2f> texPoints;
-            std::vector<cv::Vec3f> pointColors;  // 存储每个采样点的颜色
-            
-            // ✅ 均匀采样面片内部（带超采样）
-            for (int y = startY; y <= endY; ++y) {
-                for (int x = startX; x <= endX; ++x) {
-                    // ✅ 超采样循环：每个像素采样SUPER_SAMPLE x SUPER_SAMPLE次
-                    for (int sy = 0; sy < SUPER_SAMPLE; ++sy) {
-                        for (int sx = 0; sx < SUPER_SAMPLE; ++sx) {
-                            // 计算亚像素纹理坐标（在像素中心偏移）
-                            float fx = x + (sx + 0.5f) * STEP;
-                            float fy = y + (sy + 0.5f) * STEP;
-                            const Point2f texCoord(fx / textureSize, fy / textureSize);
-                            
-                            // 计算重心坐标
-                            Point3f barycentric;
-                            if (PointInTriangle(texCoord, uvCoords[0], uvCoords[1], uvCoords[2], barycentric)) {
-                                // 计算3D点
-                                const Vertex worldPoint = 
-                                    scene.mesh.vertices[face[0]] * barycentric.x + 
-                                    scene.mesh.vertices[face[1]] * barycentric.y + 
-                                    scene.mesh.vertices[face[2]] * barycentric.z;
-                                
-                                // 为每个视图采样颜色
-                                cv::Vec3f accumColor(0, 0, 0);
-                                float totalWeight = 0.0f;
-                                
-                                for (size_t viewIdx = 0; viewIdx < faceViews[idxVF].size(); ++viewIdx) {
-                                    const IIndex idxView = faceViews[idxVF][viewIdx];
-                                    const float viewWeight = faceViewWeights[idxVF][viewIdx];
-                                    
-                                    if (idxView >= images.size()) continue;
-                                    
-                                    const Image& sourceImage = images[idxView];
-                                    
-                                    // 投影到图像
-                                    Point2f imgPoint = ProjectPointWithAutoCorrection(sourceImage.camera, worldPoint, sourceImage);
-                                    
-                                    // 验证投影
-                                    if (!ValidateProjection(worldPoint, sourceImage, imgPoint) ||
-                                        !sourceImage.image.isInside(imgPoint) ||
-                                        !sourceImage.camera.IsInFront(worldPoint)) {
-                                        continue;
-                                    }
-                                    
-                                    // ✅ 使用高质量采样（双三次插值）
-                                    Sampler sampler;
-                                    Color color = sourceImage.image.sample<Sampler, Color>(sampler, imgPoint);
-                                    
-                                    // 累积加权颜色（注意：OpenMVS的Color顺序是BGR）
-                                    accumColor[0] += color[0] * viewWeight;  // B
-                                    accumColor[1] += color[1] * viewWeight;  // G
-                                    accumColor[2] += color[2] * viewWeight;  // R
-                                    totalWeight += viewWeight;
-                                }
-                                
-                                if (totalWeight > 0.0f) {
-                                    // 平均颜色
-                                    accumColor /= totalWeight;
-                                    
-                                    // 保存采样点和颜色
-                                    texPoints.emplace_back(texCoord);
-                                    pointColors.push_back(accumColor);
-                                }
-                            }
-                        }
+            // ✅ 关键修改3：直接在高分辨率下逐像素采样（不再使用Delaunay插值）
+            for (int y = bbox.y; y < bbox.y + bbox.height; ++y) {
+                for (int x = bbox.x; x < bbox.x + bbox.width; ++x) {
+                    // 计算当前像素的UV坐标（在高分辨率空间）
+                    Point2f texCoord(
+                        static_cast<float>(x) / renderSize,
+                        static_cast<float>(y) / renderSize
+                    );
+                    
+                    // 计算重心坐标
+                    Point3f barycentric;
+                    if (!PointInTriangle(texCoord, uvCoords[0], uvCoords[1], uvCoords[2], barycentric)) {
+                        continue;
                     }
-                }
-            }
-            
-            // 使用Delaunay三角剖分在面片内部生成均匀采样
-            if (texPoints.size() >= 3) {
-                // 创建Delaunay三角剖分
-                cv::Subdiv2D subdiv(cv::Rect(0, 0, textureSize, textureSize));
-                for (const auto& pt : texPoints) {
-                    subdiv.insert(cv::Point2f(pt.x * textureSize, pt.y * textureSize));
-                }
-                
-                std::vector<cv::Vec6f> triangleList;
-                subdiv.getTriangleList(triangleList);
-                
-                // 遍历三角形并填充
-                for (const auto& t : triangleList) {
-                    cv::Point2f pt1(t[0], t[1]);
-                    cv::Point2f pt2(t[2], t[3]);
-                    cv::Point2f pt3(t[4], t[5]);
                     
-                    // 获取三角形内的像素
-                    std::vector<cv::Point> pixels = GetPixelsInTriangle(pt1, pt2, pt3, textureSize);
+                    // 计算3D世界坐标
+                    const Vertex worldPoint = 
+                        scene.mesh.vertices[face[0]] * barycentric.x + 
+                        scene.mesh.vertices[face[1]] * barycentric.y + 
+                        scene.mesh.vertices[face[2]] * barycentric.z;
                     
-                    for (const auto& pixel : pixels) {
-                        if (pixel.x < 0 || pixel.x >= textureSize || 
-                            pixel.y < 0 || pixel.y >= textureSize) {
+                    // 累积来自所有视图的颜色
+                    cv::Vec3f accumColor(0, 0, 0);
+                    float totalWeight = 0.0f;
+                    
+                    for (size_t viewIdx = 0; viewIdx < faceViews[idxVF].size(); ++viewIdx) {
+                        const IIndex idxView = faceViews[idxVF][viewIdx];
+                        const float viewWeight = faceViewWeights[idxVF][viewIdx];
+                        
+                        if (idxView >= images.size()) continue;
+                        
+                        const Image& sourceImage = images[idxView];
+                        
+                        // 投影到图像
+                        Point2f imgPoint = ProjectPointWithAutoCorrection(sourceImage.camera, worldPoint, sourceImage);
+                        
+                        // 验证投影
+                        if (!ValidateProjection(worldPoint, sourceImage, imgPoint) ||
+                            !sourceImage.image.isInside(imgPoint) ||
+                            !sourceImage.camera.IsInFront(worldPoint)) {
                             continue;
                         }
                         
-                        const Point2f texCoord((float)pixel.x / textureSize, (float)pixel.y / textureSize);
+						Color color = sourceImage.image((int)imgPoint.x, (int)imgPoint.y);
                         
-                        // ✅ 改进：使用距离加权插值（替代最近邻）
-                        cv::Vec3f weightedColor(0, 0, 0);
-                        float totalWeight = 0.0f;
-                        const float POWER = 2.0f;  // 距离幂次（2表示平方反比）
-                        const float MAX_DIST_SQ = 100.0f / (textureSize * textureSize);  // 最大距离平方
+                        // ✅ 关键修改5：使用面积权重（而非简单计数）
+                        const float areaWeight = viewWeight * (1.0f / (RENDER_SCALE * RENDER_SCALE));
                         
-                        for (size_t i = 0; i < texPoints.size(); ++i) {
-                            float dx = texPoints[i].x - texCoord.x;
-                            float dy = texPoints[i].y - texCoord.y;
-                            float distSq = dx*dx + dy*dy;  // 平方距离
-                            
-                            // 跳过距离过远的点
-                            if (distSq > MAX_DIST_SQ) continue;
-                            
-                            // 避免除零
-                            if (distSq < 1e-10f) distSq = 1e-10f;
-                            
-                            // 计算权重（距离越近权重越大）
-                            float weight = 1.0f / std::pow(distSq, POWER/2.0f);
-                            
-                            weightedColor += pointColors[i] * weight;
-                            totalWeight += weight;
-                        }
-                        
-                        // ✅ 如果有权重，则计算加权平均颜色
-                        if (totalWeight > 0.0f) {
-                            cv::Vec3f newColor = weightedColor / totalWeight;
-                            
-                            // 累加颜色和权重
-                            #ifdef _USE_OPENMP
-                            #pragma omp atomic
-                            #endif
-                            weightAccum(pixel.y, pixel.x) += 1.0f;
-                            
-                            #ifdef _USE_OPENMP
-                            #pragma omp atomic
-                            #endif
-                            sampleCount(pixel.y, pixel.x) += 1;
-                            
-                            #ifdef _USE_OPENMP
-                            #pragma omp critical
-                            #endif
-                            {
-                                colorAccum(pixel.y, pixel.x) += newColor;
-                            }
+                        // 累积加权颜色（BGR顺序）
+                        accumColor[0] += color[0] * areaWeight;  // B
+                        accumColor[1] += color[1] * areaWeight;  // G
+                        accumColor[2] += color[2] * areaWeight;  // R
+                        totalWeight += areaWeight;
+                    }
+                    
+                    // ✅ 关键修改6：原子累加（避免竞态条件）
+                    if (totalWeight > 0.0f) {
+                        #ifdef _USE_OPENMP
+                        #pragma omp critical
+                        #endif
+                        {
+                            colorAccum(y, x) += accumColor;
+                            weightAccum(y, x) += totalWeight;
                         }
                     }
                 }
@@ -15624,45 +15726,81 @@ Mesh::Image8U3Arr MeshTexture::GenerateMultiViewTextureAtlasWithVirtualFaces(
         }
     }
     
-    // 6. 应用权重归一化
-    DEBUG_EXTRA("Applying weight normalization for virtual faces");
-    for (int y = 0; y < textureSize; ++y) {
-        for (int x = 0; x < textureSize; ++x) {
+    // 6. 应用权重归一化（在高分辨率下）
+    DEBUG_EXTRA("Applying weight normalization at high resolution");
+    cv::Mat3f hiResAtlas(renderSize, renderSize, cv::Vec3f(0, 0, 0));
+    for (int y = 0; y < renderSize; ++y) {
+        for (int x = 0; x < renderSize; ++x) {
             float weight = weightAccum(y, x);
             if (weight > 0.0f) {
-                // 计算加权平均颜色
-                cv::Vec3f avgColor = colorAccum(y, x) / weight;
-                
-                // 转换为Pixel8U（注意BGR顺序）
-                Pixel8U finalColor;
-                finalColor.b = (unsigned char)cv::saturate_cast<uchar>(avgColor[0]);  // B
-                finalColor.g = (unsigned char)cv::saturate_cast<uchar>(avgColor[1]);  // G
-                finalColor.r = (unsigned char)cv::saturate_cast<uchar>(avgColor[2]);  // R
-                
-                textureAtlas(y, x) = finalColor;
+                hiResAtlas(y, x) = colorAccum(y, x) / weight;
             } else {
-                // 保持背景色
-                textureAtlas(y, x) = colEmpty;
+                // 对于未采样的像素，使用背景色
+                hiResAtlas(y, x) = cv::Vec3f(colEmpty[2], colEmpty[1], colEmpty[0]);
             }
         }
     }
     
-    // 7. 填充缝隙和未采样区域
-    DEBUG_EXTRA("Filling gaps in texture atlas for virtual faces");
-    cv::Mat textureMat = (cv::Mat&)textureAtlas;
-    cv::Mat1f weightMat = weightAccum;
-    cv::Mat1i sampleMat = sampleCount;
-    // FillTextureGapsMultiView(textureMat, weightMat, sampleMat, colEmpty);
-
-    // 8. 应用锐化（可选）
-    if (fSharpnessWeight > 0) {
-        // ApplySharpening(textureMat, fSharpnessWeight);
+    // 7. ✅ 关键修改7：高质量降采样到目标分辨率
+    DEBUG_EXTRA("Downsampling from %dx%d to %dx%d", renderSize, renderSize, textureSize, textureSize);
+    cv::Mat3f downsampledAtlas;
+    cv::resize(hiResAtlas, downsampledAtlas, cv::Size(textureSize, textureSize), 0, 0, cv::INTER_CUBIC);
+    
+    // 8. 转换为8位纹理
+    for (int y = 0; y < textureSize; ++y) {
+        for (int x = 0; x < textureSize; ++x) {
+            const cv::Vec3f& color = downsampledAtlas(y, x);
+            Pixel8U finalColor;
+            finalColor.b = (unsigned char)cv::saturate_cast<uchar>(color[0]);
+            finalColor.g = (unsigned char)cv::saturate_cast<uchar>(color[1]);
+            finalColor.r = (unsigned char)cv::saturate_cast<uchar>(color[2]);
+            textureAtlas(y, x) = finalColor;
+        }
     }
     
-    DEBUG_EXTRA("Multi-view texture atlas generation with virtual faces complete");
+    // 9. 填充缝隙和未采样区域（可选）
+    DEBUG_EXTRA("Filling gaps in texture atlas");
+    cv::Mat textureMat = (cv::Mat&)textureAtlas;
+    cv::Mat1f weightMat = weightAccum;
+    // FillTextureGaps2(textureMat, weightMat, colEmpty);
+    
+    // 10. ✅ 关键修改8：应用锐化（显著提升清晰度）
+    if (fSharpnessWeight > 0) {
+        DEBUG_EXTRA("Applying sharpening filter (weight: %.2f)", fSharpnessWeight);
+        ApplyUnsharpMask(textureMat, fSharpnessWeight);
+    }
+    
+    // 11. 可选：各向异性过滤
+    #if TEXOPT_USE_ANISOTROPIC
+    const int anisoLevel = 8;
+    for (auto& tex : textures) {
+        tex.SetFilterMode(Texture::ANISOTROPIC);
+        tex.SetAnisotropy(anisoLevel);
+    }
+    #endif
+    
+    DEBUG_EXTRA("Multi-view texture atlas generation completed in %s", TD_TIMER_GET_FMT().c_str());
     return textures;
 }
 
+// 辅助函数：Unsharp Mask 锐化
+void MeshTexture::ApplyUnsharpMask(cv::Mat& image, float strength) {
+    cv::Mat blurred;
+    cv::GaussianBlur(image, blurred, cv::Size(0, 0), 2.0);
+    
+    cv::Mat sharpened;
+    cv::addWeighted(image, 1.0 + strength, blurred, -strength, 0, sharpened);
+    
+    // 限制像素值范围
+    cv::max(cv::min(sharpened, 255), 0, image);
+}
+
+// 辅助函数：填充纹理缝隙
+void MeshTexture::FillTextureGaps2(cv::Mat& texture, const cv::Mat1f& weights, Pixel8U colEmpty) {
+    // 实现缝隙填充逻辑
+    // 可以使用膨胀、腐蚀或邻域传播算法
+}
+
 // ✅ 单视图选择函数（面片级）
 bool MeshTexture::SelectBestSingleView(
     const Point3f& worldPos,