diff --git a/build.bat b/build.bat
index 86db412..08ffc6e 100644
--- a/build.bat
+++ b/build.bat
@@ -25,14 +25,17 @@ if not exist "%VSWHERE%" (
   echo [build] vswhere not found. Open "x64 Native Tools Command Prompt for VS" and build manually.
   exit /b 1
 )
-for /f "usebackq tokens=*" %%i in (`"%VSWHERE%" -latest -property installationPath`) do set "VSPATH=%%i"
-if not defined VSPATH ( echo [build] Visual Studio not found. & exit /b 1 )
+REM -all -prerelease for VS2026 preview (note: -latest yields empty on this preview, and
+REM -products * would pull in the bundled BuildTools whose vcpkg/env breaks our preset);
+REM -requires ensures the C++ toolset is present. Multiple installs -> last one wins.
+for /f "usebackq tokens=*" %%i in (`"%VSWHERE%" -all -prerelease -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 -property installationPath`) do set "VSPATH=%%i"
+if not defined VSPATH ( echo [build] Visual Studio with C++ toolset not found. Install the VS Desktop C++ workload. & exit /b 1 )
 
 set "VCVARS=%VSPATH%\VC\Auxiliary\Build\vcvars64.bat"
 set "CMAKE=%VSPATH%\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe"
 set "CTEST=%VSPATH%\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\ctest.exe"
-if not exist "%VCVARS%" ( echo [build] vcvars64.bat not found: %VCVARS% & exit /b 1 )
-if not exist "%CMAKE%"  ( echo [build] cmake not found: %CMAKE% & exit /b 1 )
+if not exist "%VCVARS%" ( echo [build] vcvars64.bat not found: "%VCVARS%" & exit /b 1 )
+if not exist "%CMAKE%"  ( echo [build] cmake not found: "%CMAKE%" & exit /b 1 )
 
 REM --- activate MSVC environment (cl / link / include / lib) ---
 call "%VCVARS%" >nul
diff --git a/src/app/CMakeLists.txt b/src/app/CMakeLists.txt
index 4190b53..4f3f8fd 100644
--- a/src/app/CMakeLists.txt
+++ b/src/app/CMakeLists.txt
@@ -54,7 +54,7 @@ add_executable(geopro_desktop WIN32
   panels/LoadingOverlay.cpp
   panels/DatasetDetailPage.cpp
   panels/DatasetDetailPanel.cpp
-  CentralScene.cpp
+  VtkSceneView.cpp
   ProjectListDialog.cpp
   ObjectFormDialog.cpp
   ImportDatasetDialog.cpp
diff --git a/src/app/CentralScene.cpp b/src/app/CentralScene.cpp
deleted file mode 100644
index faefd85..0000000
--- a/src/app/CentralScene.cpp
+++ /dev/null
@@ -1,49 +0,0 @@
-#include "CentralScene.hpp"
-
-#include <vtkActor.h>
-#include <vtkRenderWindow.h>
-#include <vtkRenderer.h>
-
-#include "CameraPreset.hpp"
-#include "Scene.hpp"
-#include "Theme.hpp"
-#include "actors/CurtainActor.hpp"
-#include "actors/MapLineActor.hpp"
-#include "geo/GeoLocalFrame.hpp"
-
-namespace geopro::app {
-
-void rebuildCentralScene(geopro::render::Scene& scene, vtkRenderer* renderer,
-                         vtkRenderWindow* renderWindow, ViewMode mode,
-                         const std::vector<SectionInput>& sections, bool showCurtain,
-                         const geopro::core::GeoLocalFrame& frame, double verticalExaggeration) {
-    scene.clear();
-    const bool is2D = (mode == ViewMode::Map2D);
-    (void)is2D;
-    // 背景永远深色（规范§0.5 视图区常深，不随明暗切换），让色阶数据更突出。
-    double bgR, bgG, bgB;
-    geopro::app::vtkBackground(bgR, bgG, bgB);
-    renderer->SetBackground(bgR, bgG, bgB);
-
-    for (const auto& s : sections) {
-        if (is2D) {
-            auto line = geopro::render::buildSurveyLine(s.grid, frame);
-            if (line) scene.addActor(line);
-        } else if (showCurtain) {
-            auto curtain = geopro::render::buildCurtain(s.grid, s.colorScale, frame);
-            if (curtain) {
-                curtain->SetScale(1.0, 1.0, verticalExaggeration);  // 纵向夸张成墙
-                scene.addActor(curtain);
-            }
-        }
-    }
-
-    if (is2D)
-        geopro::render::applyTop2D(renderer);
-    else
-        geopro::render::applyFree3D(renderer);
-    renderer->ResetCamera();
-    renderWindow->Render();
-}
-
-}  // namespace geopro::app
diff --git a/src/app/CentralScene.hpp b/src/app/CentralScene.hpp
deleted file mode 100644
index 1e75032..0000000
--- a/src/app/CentralScene.hpp
+++ /dev/null
@@ -1,31 +0,0 @@
-#pragma once
-#include <vector>
-
-#include "model/ColorScale.hpp"
-#include "model/Field.hpp"
-
-namespace geopro::core { class GeoLocalFrame; }
-namespace geopro::render { class Scene; }
-class vtkRenderer;
-class vtkRenderWindow;
-
-namespace geopro::app {
-
-// 中央视图模式：二维地图（测线红线俯视）/ 三维视图（断面墙）。
-enum class ViewMode { Map2D, View3D };
-
-// 一个待渲染剖面：grid（2D 测线 / 3D 帘面都用）+ colorScale（3D 帘面上色）。
-struct SectionInput {
-    geopro::core::Grid grid;
-    geopro::core::ColorScale colorScale;
-};
-
-// 中央场景重建（脱离对象树，按显式 sections 渲染）：
-//   2D = 每个 section 的 buildSurveyLine；3D = 每个 section 的 buildCurtain（受 showCurtain）。
-// 下一轮接真实 DS：构建 sections 后调用本函数即可，render 层零改动。
-void rebuildCentralScene(geopro::render::Scene& scene, vtkRenderer* renderer,
-                         vtkRenderWindow* renderWindow, ViewMode mode,
-                         const std::vector<SectionInput>& sections, bool showCurtain,
-                         const geopro::core::GeoLocalFrame& frame, double verticalExaggeration);
-
-}  // namespace geopro::app
diff --git a/src/app/VtkSceneView.cpp b/src/app/VtkSceneView.cpp
new file mode 100644
index 0000000..729744e
--- /dev/null
+++ b/src/app/VtkSceneView.cpp
@@ -0,0 +1,72 @@
+#include "VtkSceneView.hpp"
+
+#include <utility>
+
+#include <vtkActor.h>
+#include <vtkRenderWindow.h>
+#include <vtkRenderer.h>
+#include <vtkVolume.h>
+
+#include "CameraPreset.hpp"
+#include "Scene.hpp"
+#include "Theme.hpp"
+#include "actors/CurtainActor.hpp"
+#include "actors/MapLineActor.hpp"
+#include "actors/TerrainActor.hpp"
+#include "actors/VoxelActor.hpp"
+#include "geo/GeoLocalFrame.hpp"
+
+namespace geopro::app {
+
+VtkSceneView::VtkSceneView(geopro::render::Scene& scene, vtkRenderWindow* renderWindow,
+                           std::shared_ptr<geopro::core::GeoLocalFrame> frame, double zRefElev)
+    : scene_(scene),
+      renderWindow_(renderWindow),
+      frame_(std::move(frame)),
+      zRefElev_(zRefElev) {}
+
+void VtkSceneView::clear() { scene_.clear(); }
+
+void VtkSceneView::setVerticalExaggeration(double ve) { verticalExaggeration_ = ve; }
+
+void VtkSceneView::addSurveyLine(const geopro::core::Grid& grid) {
+    auto line = geopro::render::buildSurveyLine(grid, *frame_);
+    if (line) scene_.addActor(line);
+}
+
+void VtkSceneView::addCurtain(const geopro::core::Grid& grid, const geopro::core::ColorScale& cs) {
+    auto curtain = geopro::render::buildCurtain(grid, cs, *frame_);
+    if (curtain) {
+        curtain->SetScale(1.0, 1.0, verticalExaggeration_);  // 纵向夸张成墙
+        scene_.addActor(curtain);
+    }
+}
+
+void VtkSceneView::addVolume(const geopro::data::VolumeGrid& vol, const geopro::core::ColorScale& cs) {
+    // 纵向夸张烤进 image 的 z 原点/间距（与帘面 SetScale 同倍，保证纵向一致）。
+    auto volume = geopro::render::buildVoxel(
+        vol.vol, cs, vol.origin[0], vol.origin[1], vol.origin[2] * verticalExaggeration_,
+        vol.spacing[0], vol.spacing[1], vol.spacing[2] * verticalExaggeration_, vol.vmin, vol.vmax);
+    if (volume) scene_.addViewProp(volume);
+}
+
+void VtkSceneView::addTerrain(const geopro::data::TerrainPaths& paths) {
+    auto terrain = geopro::render::buildTerrain(paths.demPath, paths.imagePath, *frame_, zRefElev_,
+                                                verticalExaggeration_);
+    if (terrain) scene_.addActor(terrain);
+}
+
+void VtkSceneView::render(bool is2D) {
+    // 视图区背景永远深色（规范 §0.5：不随明暗切换），让色阶数据更突出。
+    double bgR, bgG, bgB;
+    geopro::app::vtkBackground(bgR, bgG, bgB);
+    scene_.renderer()->SetBackground(bgR, bgG, bgB);
+    if (is2D)
+        geopro::render::applyTop2D(scene_.renderer());
+    else
+        geopro::render::applyFree3D(scene_.renderer());
+    scene_.renderer()->ResetCamera();
+    if (renderWindow_) renderWindow_->Render();
+}
+
+}  // namespace geopro::app
diff --git a/src/app/VtkSceneView.hpp b/src/app/VtkSceneView.hpp
new file mode 100644
index 0000000..dba7705
--- /dev/null
+++ b/src/app/VtkSceneView.hpp
@@ -0,0 +1,39 @@
+#pragma once
+#include <memory>
+
+#include "I3dSceneView.hpp"
+
+namespace geopro::core { class GeoLocalFrame; }
+namespace geopro::render { class Scene; }
+class vtkRenderer;
+class vtkRenderWindow;
+
+namespace geopro::app {
+
+// I3dSceneView 的真实实现：把编排层的"加图元"指令翻译为 render actor + Scene 调用。
+//   持有 Scene / renderer / renderWindow（非拥有）+ 共享 GeoLocalFrame（多视图空间配准）。
+//   纵向夸张统一作用：帘面/地形 actor SetScale(1,1,VE)，体素 z 原点/间距烤入 VE。
+// render 层零业务：actor 只吃 core::*，本类负责装配。
+class VtkSceneView : public geopro::controller::I3dSceneView {
+public:
+    // 入参生命周期须覆盖本对象（由调用方保证）。zRefElev：地形 z 基准（测线地表高程）。
+    VtkSceneView(geopro::render::Scene& scene, vtkRenderWindow* renderWindow,
+                 std::shared_ptr<geopro::core::GeoLocalFrame> frame, double zRefElev);
+
+    void clear() override;
+    void setVerticalExaggeration(double ve) override;
+    void addSurveyLine(const geopro::core::Grid& grid) override;
+    void addCurtain(const geopro::core::Grid& grid, const geopro::core::ColorScale& cs) override;
+    void addVolume(const geopro::data::VolumeGrid& vol, const geopro::core::ColorScale& cs) override;
+    void addTerrain(const geopro::data::TerrainPaths& paths) override;
+    void render(bool is2D) override;
+
+private:
+    geopro::render::Scene& scene_;
+    vtkRenderWindow* renderWindow_;
+    std::shared_ptr<geopro::core::GeoLocalFrame> frame_;
+    double zRefElev_;
+    double verticalExaggeration_ = 2.0;
+};
+
+}  // namespace geopro::app
diff --git a/src/app/main.cpp b/src/app/main.cpp
index 94618f8..2eb4069 100644
--- a/src/app/main.cpp
+++ b/src/app/main.cpp
@@ -78,6 +78,7 @@
 #include "model/ColorScale.hpp"
 #include "model/Field.hpp"
 #include "repo/LocalSampleRepository.hpp"
+#include "repo/LocalSample3dRepository.hpp"
 
 #include "ApiClient.hpp"
 #include "AuthService.hpp"
@@ -88,11 +89,12 @@
 #include "Theme.hpp"
 #include "SettingsDialog.hpp"
 #include "TopBar.hpp"
-#include "CentralScene.hpp"
 #include "ProjectListDialog.hpp"
 #include "ObjectFormDialog.hpp"
 #include "ImportDatasetDialog.hpp"
 #include "WorkbenchNavController.hpp"
+#include "VtkSceneController.hpp"
+#include "VtkSceneView.hpp"
 #include "api/NavRequest.hpp"
 #include "api/NavLoads.hpp"
 #include "DatasetDetailController.hpp"
@@ -138,7 +140,6 @@
 #include <vtkCamera.h>
 #include <vtkCameraInterpolator.h>
 #include <vtkGenericOpenGLRenderWindow.h>
-#include <vtkImagePlaneWidget.h>
 #include <vtkLookupTable.h>
 #include <vtkProperty.h>
 #include <vtkRenderWindowInteractor.h>
@@ -199,9 +200,6 @@ double median(std::vector<double> v)
     return n % 2 ? v[n / 2] : 0.5 * (v[n / 2 - 1] + v[n / 2]);
 }
 
-// 当前中央视图（默认二维地图）。二维地图=测线红线俯视；三维视图=断面墙。
-using geopro::app::ViewMode;
-
 // 纵向夸张倍数（Z 基准统一，M-3）：全项目共用同一倍数，使 帘面(z) / 体素 / 切片 /
 // 数据详情剖面(y) / 地形(relief) 的纵向比例一致——避免「剖面×1.5、帘面×3」不一致。
 // 单一可调常量：要整体调纵向观感改这一处即可。
@@ -231,29 +229,36 @@ void buildWorkbench(QMainWindow& window, geopro::data::LocalSampleRepository& re
     // Scene 非 QObject：堆分配，用 widget 销毁信号清理（widget 随 window 销毁）。
     auto* scene = new geopro::render::Scene();
     auto* vtkWidget = new QVTKOpenGLStereoWidget();
-    QObject::connect(vtkWidget, &QObject::destroyed, [scene]() { delete scene; });
     vtkNew<vtkGenericOpenGLRenderWindow> renderWindow;
     vtkWidget->setRenderWindow(renderWindow);
     renderWindow->AddRenderer(scene->renderer());
 
-    vtkRenderer* rendererPtr = scene->renderer();
     vtkGenericOpenGLRenderWindow* renderWindowPtr = renderWindow.Get();
 
-    // 当前视图模式（全局共享，切视图/勾选时据此重建内容）。默认二维地图。
-    auto viewMode = std::make_shared<ViewMode>(ViewMode::Map2D);
+    // 中央渲染编排（VtkSceneController + VtkSceneView，取代旧 rebuildCentral lambda 与裸 show* 标志）。
+    //   3D 场景仓储用 LocalSample3dRepository（本期样本驱动；接口异步，将来换 Api 实现不动上层）。
+    //   视图（VtkSceneView）非 QObject、控制器/3D 仓储亦然：随 scene 一并在 vtkWidget 销毁时清理。
+    auto* scene3dRepo = new geopro::data::LocalSample3dRepository(repo, kProjectCrs, lat0, lon0);
+    auto* sceneView = new geopro::app::VtkSceneView(*scene, renderWindowPtr,
+                                                    frame, refElev);
+    auto* sceneCtrl = new geopro::controller::VtkSceneController(repo, *scene3dRepo, *sceneView,
+                                                                 vtkWidget);
+    sceneCtrl->setVerticalExaggeration(kVerticalExaggeration);
+    // 非 QObject 堆对象统一在此清理，按构造逆序：sceneView(持 scene&) → scene3dRepo → scene。
+    // （sceneCtrl 是 vtkWidget 的 QObject 子对象，由 Qt 在 destroyed 前先析构，不再触发信号回灌。）
+    QObject::connect(vtkWidget, &QObject::destroyed, [scene, scene3dRepo, sceneView]() {
+        delete sceneView;
+        delete scene3dRepo;
+        delete scene;
+    });
 
-    // 三维图层显隐（由「视图详情」浮层控制）+ 项目 CRS→WGS84(体素配准)。
-    auto showCurtain = std::make_shared<bool>(true);   // 帘面，默认显示
-    auto showVoxel = std::make_shared<bool>(false);    // 体素，默认关
-    auto showTerrain = std::make_shared<bool>(false);  // 地形(DEM+影像)，默认关
-    auto showSlice = std::make_shared<bool>(false);    // dd_slice 交互切片，默认关
-    // 持久的切片 widget(挂 interactor，跨重建保活；rebuildCentral 据条件创建/拆除)。
-    auto slicePlane = std::make_shared<vtkSmartPointer<vtkImagePlaneWidget>>();
-    std::shared_ptr<geopro::core::CrsTransform> crs;   // PROJ 失败→空→体素层无效(不崩)
+    // PROJ 可用性（体素/地形/切片层都需配准）：失败则浮层相应勾选禁用并提示。
+    bool crsAvailable = false;
     try {
-        crs = std::make_shared<geopro::core::CrsTransform>(kProjectCrs, kWgs84);
+        geopro::core::CrsTransform probe(kProjectCrs, kWgs84);
+        crsAvailable = true;
     } catch (const std::exception&) {
-        crs.reset();
+        crsAvailable = false;
     }
 
     // 停靠系统配置（必须在 CDockManager 构造前设置）：对齐原型——面板固定、
@@ -345,17 +350,14 @@ void buildWorkbench(QMainWindow& window, geopro::data::LocalSampleRepository& re
     chkTerrain->setChecked(false);
     auto* chkSlice = new QCheckBox(QStringLiteral("切片（dd_slice）"));
     chkSlice->setChecked(false);
-    if (!crs) {  // PROJ 不可用 → 体素/切片/地形层(都需配准)禁用并提示
+    if (!crsAvailable) {  // PROJ 不可用 → 体素/地形层(都需配准)禁用并提示
         const QString tip = QStringLiteral("PROJ 数据(proj.db)缺失，配准不可用");
         chkVoxel->setEnabled(false); chkVoxel->setToolTip(tip);
         chkTerrain->setEnabled(false); chkTerrain->setToolTip(tip);
-        chkSlice->setEnabled(false); chkSlice->setToolTip(tip);
-    }
-    // 本轮中央不接真实派生层：体素/切片/地形勾选置灰，待下一轮接入对应数据源。
-    for (QCheckBox* c : {chkVoxel, chkSlice, chkTerrain}) {
-        c->setEnabled(false);
-        c->setToolTip(QStringLiteral("（下一轮接入真实数据源）"));
     }
+    // 切片（dd_slice）交互切片留待 P3：本轮禁用。
+    chkSlice->setEnabled(false);
+    chkSlice->setToolTip(QStringLiteral("（切片交互 P3 接入）"));
     layerLayout->addWidget(layerTitle);
     layerLayout->addWidget(chkCurtain);
     layerLayout->addWidget(chkVoxel);
@@ -503,13 +505,8 @@ void buildWorkbench(QMainWindow& window, geopro::data::LocalSampleRepository& re
     };
     hideDockTitleBars();
 
-    // 中央编排已解耦到 CentralScene::rebuildCentralScene（数据驱动）。本轮空 sections → 空背景占位。
-    // 下一轮：用真实 DS 数据构建 sections 调同一 helper 即复活。
-    auto rebuildCentral = [scene, rendererPtr, renderWindowPtr, viewMode, showCurtain, frame]() {
-        geopro::app::rebuildCentralScene(*scene, rendererPtr, renderWindowPtr, *viewMode,
-                                         std::vector<geopro::app::SectionInput>{}, *showCurtain,
-                                         *frame, kVerticalExaggeration);
-    };
+    // 中央渲染由 sceneCtrl（VtkSceneController）驱动：勾选对象/2D-3D切换/图层勾选/主题 → 重建场景。
+    // （旧 rebuildCentral lambda + 裸 show* 标志已由控制器取代。）
 
     // ── 单击左下数据列表的采集批次(DS) → 属性表单 + 聚焦详情已开页 ──
     QObject::connect(datasetList, &QTreeWidget::itemClicked, datasetList,
@@ -580,51 +577,44 @@ void buildWorkbench(QMainWindow& window, geopro::data::LocalSampleRepository& re
         }
     };
 
-    // ── 工具条「二维地图/三维视图」：切换互斥视图 → 重建内容 + 图层浮层显隐 ──
+    // ── 工具条「二维地图/三维视图」：切换互斥视图 → 控制器重建 + 图层浮层显隐 ──
+    using geopro::controller::SceneLayer;
+    using CtrlViewMode = geopro::controller::ViewMode;
     QObject::connect(act2D, &QAbstractButton::clicked, vtkWidget,
-                     [viewMode, rebuildCentral, showLayerPanel]() {
-                         *viewMode = ViewMode::Map2D;
+                     [sceneCtrl, showLayerPanel]() {
                          showLayerPanel(false);
-                         rebuildCentral();
+                         sceneCtrl->setViewMode(CtrlViewMode::Map2D);
                      });
     QObject::connect(act3D, &QAbstractButton::clicked, vtkWidget,
-                     [viewMode, rebuildCentral, showLayerPanel]() {
-                         *viewMode = ViewMode::View3D;
+                     [sceneCtrl, showLayerPanel]() {
                          showLayerPanel(true);
-                         rebuildCentral();
+                         sceneCtrl->setViewMode(CtrlViewMode::View3D);
                      });
 
-    // ──「视图详情」图层勾选 → 更新图层显隐 → 重建中央 ──
+    // ──「视图详情」图层勾选 → 控制器更新图层 → 重建中央 ──
     QObject::connect(chkCurtain, &QCheckBox::toggled, vtkWidget,
-                     [showCurtain, rebuildCentral](bool on) {
-                         *showCurtain = on;
-                         rebuildCentral();
-                     });
+                     [sceneCtrl](bool on) { sceneCtrl->setLayer(SceneLayer::Curtain, on); });
     QObject::connect(chkVoxel, &QCheckBox::toggled, vtkWidget,
-                     [showVoxel, rebuildCentral](bool on) {
-                         *showVoxel = on;
-                         rebuildCentral();
-                     });
+                     [sceneCtrl](bool on) { sceneCtrl->setLayer(SceneLayer::Voxel, on); });
     QObject::connect(chkTerrain, &QCheckBox::toggled, vtkWidget,
-                     [showTerrain, rebuildCentral](bool on) {
-                         *showTerrain = on;
-                         rebuildCentral();
-                     });
-    QObject::connect(chkSlice, &QCheckBox::toggled, vtkWidget,
-                     [showSlice, rebuildCentral](bool on) {
-                         *showSlice = on;
-                         rebuildCentral();
+                     [sceneCtrl](bool on) { sceneCtrl->setLayer(SceneLayer::Terrain, on); });
+
+    // ── 左上对象树勾选 → 渲染勾选数据集（本期样本驱动：任意勾选 → 样本 ds "grid1"，空 → 清场）──
+    // 真实接 Api 时改为把勾选 TM 映射到其 ds 维度过滤后的真实 dsId 列表（spec §6.1/§8）。
+    QObject::connect(objectTree, &geopro::app::ObjectTreePanel::checkedTmsChanged, sceneCtrl,
+                     [sceneCtrl](const QStringList& tmIds) {
+                         sceneCtrl->setCheckedDatasets(tmIds.isEmpty() ? QStringList{}
+                                                                       : QStringList{QStringLiteral("grid1")});
                      });
 
-    // ── 启动：建立一次空背景中央视图（真实 sections 数据由下一轮接入）。
-    rebuildCentral();
+    // ── 启动：建立一次中央视图（默认 2D，无勾选 → 空场景 + 背景）。
+    sceneCtrl->setViewMode(CtrlViewMode::Map2D);
 
-    // VTK 背景随主题切换：直接重跑 rebuildCentral（走完整渲染路径、末尾必 Render，
-    // 比手动 SetBackground+Render 稳；兼顾 syncSystemTheme 异步切暗的时序）。
-    QObject::connect(&geopro::app::ThemeManager::instance(), &geopro::app::ThemeManager::changed, &window,
-                     [rebuildCentral]() {
-                         rebuildCentral();
-                     });
+    // VTK 背景随主题切换：控制器重渲染（走完整渲染路径、末尾必 Render）。
+    // context 用 sceneCtrl（非 window）：ThemeManager 是进程级单例，连接须随 sceneCtrl 析构自动断开，
+    // 否则 window 析构期间 sceneCtrl(其孙级子对象)已销毁、主题异步变化会触悬垂指针。
+    QObject::connect(&geopro::app::ThemeManager::instance(), &geopro::app::ThemeManager::changed, sceneCtrl,
+                     [sceneCtrl]() { sceneCtrl->rebuild(); });
 
     // 顶部应用区（静态视觉壳，对齐原型）：上=菜单栏（视图/项目管理/业务工具/设备），
     // 下=工具条（工作空间切换 + 项目 + 帮助/通知/设置 + 用户）。纵向堆叠后挂到主窗口顶部。
diff --git a/src/controller/CMakeLists.txt b/src/controller/CMakeLists.txt
index 0bbe490..54a5a11 100644
--- a/src/controller/CMakeLists.txt
+++ b/src/controller/CMakeLists.txt
@@ -1,7 +1,8 @@
 find_package(Qt6 COMPONENTS Core REQUIRED)
 add_library(geopro_controller STATIC
   WorkbenchNavController.cpp
-  DatasetDetailController.cpp)
+  DatasetDetailController.cpp
+  VtkSceneController.cpp)
 target_include_directories(geopro_controller PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 target_link_libraries(geopro_controller PUBLIC geopro_data Qt6::Core)
 target_compile_features(geopro_controller PUBLIC cxx_std_17)
diff --git a/src/controller/I3dSceneView.hpp b/src/controller/I3dSceneView.hpp
new file mode 100644
index 0000000..0e1e0d6
--- /dev/null
+++ b/src/controller/I3dSceneView.hpp
@@ -0,0 +1,34 @@
+#pragma once
+#include "model/ColorScale.hpp"
+#include "model/Field.hpp"
+#include "repo/I3dSceneRepository.hpp"
+
+namespace geopro::controller {
+
+// 三维场景视图抽象（编排层与 VTK 渲染解耦的缝）：
+//   VtkSceneController 只发出"清场 / 加某类图元 / 提交渲染"指令，不认 vtkActor/vtkVolume；
+//   真实实现（VtkSceneView）调 render actor + Scene；测试用 fake 记录调用断言编排。
+//   verticalExaggeration 由视图统一作用于 3D 图元（actor SetScale(1,1,VE) / image z 烤入）。
+class I3dSceneView {
+public:
+    virtual ~I3dSceneView() = default;
+
+    virtual void clear() = 0;
+    virtual void setVerticalExaggeration(double ve) = 0;
+
+    // 2D：俯视测线红线（z=0）。
+    virtual void addSurveyLine(const geopro::core::Grid& grid) = 0;
+    // 3D：竖直帘面（grid + colorScale 着色）。
+    virtual void addCurtain(const geopro::core::Grid& grid,
+                            const geopro::core::ColorScale& cs) = 0;
+    // 3D：体绘制（IDW 体素 + colorScale）。
+    virtual void addVolume(const geopro::data::VolumeGrid& vol,
+                           const geopro::core::ColorScale& cs) = 0;
+    // 3D：DEM 地形 + 影像纹理。
+    virtual void addTerrain(const geopro::data::TerrainPaths& paths) = 0;
+
+    // 应用相机预设（2D 俯视 / 3D 自由）并提交渲染。
+    virtual void render(bool is2D) = 0;
+};
+
+}  // namespace geopro::controller
diff --git a/src/controller/VtkSceneController.cpp b/src/controller/VtkSceneController.cpp
new file mode 100644
index 0000000..f0d5d97
--- /dev/null
+++ b/src/controller/VtkSceneController.cpp
@@ -0,0 +1,121 @@
+#include "VtkSceneController.hpp"
+
+#include <utility>
+
+#include <QPointer>
+
+#include "I3dSceneView.hpp"
+#include "repo/IDatasetRepository.hpp"
+
+namespace geopro::controller {
+
+VtkSceneController::VtkSceneController(data::IDatasetRepository& dsRepo,
+                                       data::I3dSceneRepository& sceneRepo, I3dSceneView& view,
+                                       QObject* parent)
+    : QObject(parent), dsRepo_(dsRepo), sceneRepo_(sceneRepo), view_(view) {}
+
+void VtkSceneController::setCheckedDatasets(const QStringList& dsIds) {
+    checkedDs_.clear();
+    checkedDs_.reserve(static_cast<std::size_t>(dsIds.size()));
+    for (const QString& id : dsIds) checkedDs_.push_back(id.toStdString());
+    rebuildInternal();
+}
+
+void VtkSceneController::setViewMode(ViewMode mode) {
+    mode_ = mode;
+    rebuildInternal();
+}
+
+void VtkSceneController::setLayer(SceneLayer layer, bool on) {
+    switch (layer) {
+        case SceneLayer::Curtain: showCurtain_ = on; break;
+        case SceneLayer::Voxel: showVoxel_ = on; break;
+        case SceneLayer::Terrain: showTerrain_ = on; break;
+    }
+    rebuildInternal();
+}
+
+void VtkSceneController::setVerticalExaggeration(double ve) {
+    verticalExaggeration_ = ve;
+    rebuildInternal();
+}
+
+void VtkSceneController::rebuild() { rebuildInternal(); }
+
+const geopro::core::Grid& VtkSceneController::grid(const std::string& dsId) {
+    auto it = gridCache_.find(dsId);
+    if (it == gridCache_.end()) it = gridCache_.emplace(dsId, dsRepo_.loadGrid(dsId)).first;
+    return it->second;
+}
+
+const geopro::core::ColorScale& VtkSceneController::colorScale(const std::string& dsId) {
+    auto it = colorScaleCache_.find(dsId);
+    if (it == colorScaleCache_.end())
+        it = colorScaleCache_.emplace(dsId, dsRepo_.loadColorScale(dsId)).first;
+    return it->second;
+}
+
+void VtkSceneController::rebuildInternal() {
+    const unsigned long long gen = ++rebuildGeneration_;
+    const bool is2D = (mode_ == ViewMode::Map2D);
+
+    view_.clear();
+    view_.setVerticalExaggeration(verticalExaggeration_);
+
+    inRebuild_ = true;
+    // 坏 dsId（loadGrid/loadColorScale 抛异常）= best-effort 跳过：emit loadFailed 但不中断，
+    // 其余勾选数据集照常渲染（非 fail-fast）。
+    try {
+        if (is2D) {
+            for (const auto& dsId : checkedDs_) view_.addSurveyLine(grid(dsId));
+        } else {
+            // 回调用 QPointer<self> 守对象存活（控制器是 QObject）+ gen 守数据新鲜：
+            //   将来 Api 实现在网络线程迟到回调时，self 已析构则直接丢弃，不触 dangling。
+            QPointer<VtkSceneController> self(this);
+            if (showTerrain_) {
+                sceneRepo_.loadTerrainPaths(
+                    [self, gen](data::TerrainPaths p) {
+                        if (!self || gen != self->rebuildGeneration_) return;  // 已析构/迟到：丢弃
+                        self->view_.addTerrain(std::move(p));
+                        if (!self->inRebuild_) self->view_.render(false);  // 同步路径由末尾统一 render
+                    },
+                    [self, gen](const std::string& m) {
+                        if (!self || gen != self->rebuildGeneration_) return;
+                        emit self->loadFailed(QString::fromStdString(m));
+                    });
+            }
+            if (showCurtain_) {
+                for (const auto& dsId : checkedDs_) view_.addCurtain(grid(dsId), colorScale(dsId));
+            }
+            if (showVoxel_) {
+                for (const auto& dsId : checkedDs_) {
+                    auto cached = volumeCache_.find(dsId);
+                    if (cached != volumeCache_.end()) {
+                        view_.addVolume(cached->second, colorScale(dsId));
+                        continue;
+                    }
+                    sceneRepo_.loadVolume(
+                        dsId,
+                        [self, gen, dsId](data::VolumeGrid g) {
+                            if (!self) return;  // 控制器已析构：丢弃
+                            if (gen != self->rebuildGeneration_) return;  // 迟到回灌：丢弃
+                            auto it = self->volumeCache_.emplace(dsId, std::move(g)).first;
+                            self->view_.addVolume(it->second, self->colorScale(dsId));
+                            if (!self->inRebuild_) self->view_.render(false);  // 同步路径由末尾统一 render
+                        },
+                        [self, gen](const std::string& m) {
+                            if (!self || gen != self->rebuildGeneration_) return;
+                            emit self->loadFailed(QString::fromStdString(m));
+                        });
+                }
+            }
+        }
+    } catch (const std::exception& e) {
+        emit loadFailed(QString::fromStdString(e.what()));
+    }
+
+    inRebuild_ = false;
+    view_.render(is2D);
+}
+
+}  // namespace geopro::controller
diff --git a/src/controller/VtkSceneController.hpp b/src/controller/VtkSceneController.hpp
new file mode 100644
index 0000000..76532d3
--- /dev/null
+++ b/src/controller/VtkSceneController.hpp
@@ -0,0 +1,78 @@
+#pragma once
+#include <QObject>
+#include <QString>
+#include <QStringList>
+#include <map>
+#include <optional>
+#include <string>
+
+#include "model/ColorScale.hpp"
+#include "model/Field.hpp"
+#include "repo/I3dSceneRepository.hpp"
+
+namespace geopro::data {
+class IDatasetRepository;
+}
+
+namespace geopro::controller {
+
+class I3dSceneView;
+
+// 中央视图模式：二维地图（俯视测线）/ 三维视图（帘面/体素/地形）。
+enum class ViewMode { Map2D, View3D };
+
+// 三维图层（"视图详情"浮层勾选）。
+enum class SceneLayer { Curtain, Voxel, Terrain };
+
+// 中央 VTK 渲染编排（spec §8）：聚合 勾选数据集 + 视图模式 + 图层开关 + 纵向比例，
+// 经仓储取 core::* 数据，命令 I3dSceneView 重建场景。取代 main.cpp 的 rebuildCentral lambda。
+//   异步：经 I3dSceneRepository 回调取体素/地形（回调内置幂请求标记防迟到回灌）。
+//   缓存：Grid / VolumeGrid 按 dsId 缓存，避免重复取数。
+// 不持有 widget；不认 vtkActor/vtkVolume（全交给 I3dSceneView）。
+class VtkSceneController : public QObject {
+    Q_OBJECT
+public:
+    VtkSceneController(data::IDatasetRepository& dsRepo, data::I3dSceneRepository& sceneRepo,
+                       I3dSceneView& view, QObject* parent = nullptr);
+
+public slots:
+    void setCheckedDatasets(const QStringList& dsIds);
+    void setViewMode(ViewMode mode);
+    void setLayer(SceneLayer layer, bool on);
+    void setVerticalExaggeration(double ve);
+    void rebuild();  // 主题切换等外部触发的重渲染
+
+signals:
+    void loadFailed(const QString& message);
+
+private:
+    void rebuildInternal();
+
+    data::IDatasetRepository& dsRepo_;
+    data::I3dSceneRepository& sceneRepo_;
+    I3dSceneView& view_;
+
+    std::vector<std::string> checkedDs_;
+    ViewMode mode_ = ViewMode::Map2D;
+    bool showCurtain_ = true;
+    bool showVoxel_ = false;
+    bool showTerrain_ = false;
+    double verticalExaggeration_ = 2.0;
+
+    // 缓存（按 dsId）：避免重复读盘/插值。
+    std::map<std::string, geopro::core::Grid> gridCache_;
+    std::map<std::string, geopro::core::ColorScale> colorScaleCache_;
+    std::map<std::string, data::VolumeGrid> volumeCache_;
+
+    // 异步回灌防护：每次 rebuild 自增，回调比对丢弃迟到结果。
+    unsigned long long rebuildGeneration_ = 0;
+    // rebuild 进行中标志：同步回调（LocalSample）在 rebuild 内立即触发时跳过自身 render，
+    // 由 rebuildInternal 末尾统一 render 覆盖（避免双重 ResetCamera/Render）；
+    // 真异步回调迟到时 inRebuild_ 已 false → 自行 render 追加。
+    bool inRebuild_ = false;
+
+    const geopro::core::Grid& grid(const std::string& dsId);
+    const geopro::core::ColorScale& colorScale(const std::string& dsId);
+};
+
+}  // namespace geopro::controller
diff --git a/src/data/CMakeLists.txt b/src/data/CMakeLists.txt
index a192760..684633e 100644
--- a/src/data/CMakeLists.txt
+++ b/src/data/CMakeLists.txt
@@ -3,6 +3,7 @@ find_package(Qt6 COMPONENTS Core REQUIRED)
 add_library(geopro_data STATIC
   parse/SampleParsers.cpp
   repo/LocalSampleRepository.cpp
+  repo/LocalSample3dRepository.cpp
   dto/NavDto.cpp
   dto/DatasetChartDto.cpp
   dto/MeasurementDto.cpp
diff --git a/src/data/repo/I3dSceneRepository.hpp b/src/data/repo/I3dSceneRepository.hpp
new file mode 100644
index 0000000..9054aeb
--- /dev/null
+++ b/src/data/repo/I3dSceneRepository.hpp
@@ -0,0 +1,52 @@
+#pragma once
+#include <array>
+#include <functional>
+#include <string>
+
+#include "model/Field.hpp"
+#include "repo/RepoTypes.hpp"
+
+namespace geopro::data {
+
+// ds 维度属性（由 ds 类型/ddCode 决定，spec §6.1）。三栏列表筛选用。
+enum class DsDimension { Dim2D, Dim3D, Analysis3D, Other };
+
+// 三维体模型数据：规则标量体 + 世界系原点/间距 + 值域（去裸 double[]，用 std::array，spec §6.2）。
+struct VolumeGrid {
+    geopro::core::ScalarVolume vol{0, 0, 0};
+    std::array<double, 3> origin{{0.0, 0.0, 0.0}};   // ox, oy, oz（世界米）
+    std::array<double, 3> spacing{{0.0, 0.0, 0.0}};  // dx, dy, dz
+    double vmin = 0.0, vmax = 0.0;
+    bool valid() const { return vol.nx() > 0 && vol.ny() > 0 && vol.nz() > 0 && vmax > vmin; }
+};
+
+// DEM/影像 GeoTIFF 绝对路径（供 render::buildTerrain 经 GDAL 读，spec §6.2）。
+struct TerrainPaths {
+    std::string demPath, imagePath;
+};
+
+// 三维场景仓储抽象（异步，spec §6 评审 HIGH）。
+//   取数方法走回调 std::function（LocalSample 本地数据同步算好后直接回调；
+//   将来 Api3dRepository 在网络完成时回调，上层不变）。
+//   **契约：onOk/onErr 必须在主(GUI)线程调用**——上层(VtkSceneController)回调内直接操作
+//   场景/发 Qt 信号，依赖主线程亲和；Api 实现若在工作线程完成须 post 回主线程再回调。
+//   dimensionOf 是同步纯函数（无 I/O，只做类型→维度映射）。
+// 切片/异常/任务等签名本期不在接口内（留 P3/P4）。
+class I3dSceneRepository {
+public:
+    using OnError = std::function<void(const std::string& message)>;
+
+    virtual ~I3dSceneRepository() = default;
+
+    // 同步纯函数：ds 类型 → 维度（spec §6.1 映射表）。
+    virtual DsDimension dimensionOf(const DsRow& ds) const = 0;
+
+    // 异步：加载三维体模型（成功回调 VolumeGrid，失败回调消息）。
+    virtual void loadVolume(const std::string& dsId,
+                            std::function<void(VolumeGrid)> onOk, OnError onErr) = 0;
+
+    // 异步：加载地形 DEM/影像路径。
+    virtual void loadTerrainPaths(std::function<void(TerrainPaths)> onOk, OnError onErr) = 0;
+};
+
+}  // namespace geopro::data
diff --git a/src/data/repo/LocalSample3dRepository.cpp b/src/data/repo/LocalSample3dRepository.cpp
new file mode 100644
index 0000000..795d295
--- /dev/null
+++ b/src/data/repo/LocalSample3dRepository.cpp
@@ -0,0 +1,159 @@
+#include "repo/LocalSample3dRepository.hpp"
+
+#include <algorithm>
+#include <cmath>
+#include <cstddef>
+#include <exception>
+#include <limits>
+#include <utility>
+#include <vector>
+
+#include "algo/IdwInterpolator.hpp"
+#include "geo/CrsTransform.hpp"
+#include "geo/GeoLocalFrame.hpp"
+#include "model/ColorScale.hpp"
+#include "model/Field.hpp"
+#include "repo/LocalSampleRepository.hpp"
+
+namespace geopro::data {
+
+using geopro::core::ColorScale;
+using geopro::core::CrsTransform;
+using geopro::core::GeoLocalFrame;
+using geopro::core::GridSpec;
+using geopro::core::IdwInterpolator;
+using geopro::core::PointSet;
+using geopro::core::ScalarVolume;
+using geopro::core::ScatterField;
+
+namespace {
+
+// 与 render::VoxelFromScatters 的默认参数同口径（保持渲染/切片纵向一致）。
+// TODO(P2/P3): 与 render::buildVoxelFromScatters 的 cellXY/cellZ/power/maxDist 默认值重复，
+//   宜把"散点→配准→GridSpec→IDW→ScalarVolume"提到 core::algo 共享，避免单方调参静默不一致。
+constexpr double kCellXY = 1.0;
+constexpr double kCellZ = 0.5;
+constexpr double kPower = 2.0;
+constexpr double kMaxDist = 4.0;
+constexpr int kMaxDim = 400;
+constexpr const char* kWgs84 = "EPSG:4326";
+
+int clampDim(double ext, double cell) {
+    int n = static_cast<int>(ext / cell) + 1;
+    if (n < 1) n = 1;
+    if (n > kMaxDim) n = kMaxDim;
+    return n;
+}
+
+}  // namespace
+
+LocalSample3dRepository::LocalSample3dRepository(LocalSampleRepository& base, std::string projectCrs,
+                                                 double baseLat, double baseLon)
+    : base_(base), projectCrs_(std::move(projectCrs)), baseLat_(baseLat), baseLon_(baseLon) {}
+
+DsDimension LocalSample3dRepository::dimensionOf(const DsRow& ds) const {
+    const std::string& c = ds.ddCode;
+    // 真三维体 / 体素 / 帘面（dd_section/反演剖面摆成竖直帘面）入三维数据集。
+    if (c == "dd_voxel" || c == "dd_Structual3D" || c == "dd_Property3D" || c == "dd_section" ||
+        c == "dd_inversion_data") {
+        return DsDimension::Dim3D;
+    }
+    // 切片：三维分析栏。
+    if (c == "dd_slice") return DsDimension::Analysis3D;
+    // 轨迹：二维数据集。
+    if (c == "dd_trajectory_data") return DsDimension::Dim2D;
+    return DsDimension::Other;
+}
+
+void LocalSample3dRepository::loadVolume(const std::string& /*dsId*/,
+                                         std::function<void(VolumeGrid)> onOk, OnError onErr) {
+    // P1 样本：dsId 暂未使用，固定读同一组交叉剖面散点→体素（真实 Api 实现按 dsId 取）。
+    try {
+        // 1) 读两条交叉剖面散点 + 色阶；配准到世界局部米 + 深度，组装 IDW 输入点集。
+        const std::vector<ScatterField> profiles = base_.loadVoxelScatters();
+        const CrsTransform crs(projectCrs_, kWgs84);
+        const GeoLocalFrame frame(baseLat_, baseLon_);
+
+        PointSet pts;
+        for (const auto& s : profiles) {
+            const std::size_t n = s.v.size();
+            if (s.projX.size() < n || s.projY.size() < n || s.y.size() < n) continue;
+            for (std::size_t i = 0; i < n; ++i) {
+                const auto ll = crs.forward(s.projX[i], s.projY[i]);  // (lon, lat)
+                const auto local = frame.toLocal(ll.y, ll.x);         // (x East, y North) 米
+                pts.x.push_back(local.x);
+                pts.y.push_back(local.y);
+                pts.z.push_back(-s.y[i]);  // 深度向下：z 取负
+                pts.v.push_back(s.v[i]);
+            }
+        }
+        if (pts.v.empty()) {
+            onErr("LocalSample3dRepository: no voxel points after registration");
+            return;
+        }
+
+        // 2) 点集包络 → GridSpec（角点对齐）。
+        double minx = pts.x[0], maxx = pts.x[0];
+        double miny = pts.y[0], maxy = pts.y[0];
+        double minz = pts.z[0], maxz = pts.z[0];
+        for (std::size_t i = 1; i < pts.v.size(); ++i) {
+            minx = std::min(minx, pts.x[i]); maxx = std::max(maxx, pts.x[i]);
+            miny = std::min(miny, pts.y[i]); maxy = std::max(maxy, pts.y[i]);
+            minz = std::min(minz, pts.z[i]); maxz = std::max(maxz, pts.z[i]);
+        }
+
+        GridSpec spec{};
+        spec.ox = minx; spec.oy = miny; spec.oz = minz;
+        spec.dx = kCellXY; spec.dy = kCellXY; spec.dz = kCellZ;
+        spec.nx = clampDim(maxx - minx, kCellXY);
+        spec.ny = clampDim(maxy - miny, kCellXY);
+        spec.nz = clampDim(maxz - minz, kCellZ);
+        spec.power = kPower;
+        spec.maxDist = kMaxDist;
+
+        // 3) IDW → ScalarVolume（maxDist 外 NaN 留空）。
+        const IdwInterpolator idw;
+        ScalarVolume vol = idw.interpolate(pts, spec);
+
+        // 4) 值域：优先 colorBar 真实分段值，否则数据实测。
+        double vmin, vmax;
+        ColorScale cs;
+        try {
+            cs = base_.loadScatterColorScale("grid1");
+        } catch (const std::exception&) {
+            // 色阶缺失 → 退化为数据实测范围。
+        }
+        const std::vector<double> stops = cs.stopValues();
+        if (stops.size() >= 2) {
+            vmin = stops.front(); vmax = stops.back();
+        } else {
+            vmin = std::numeric_limits<double>::infinity();
+            vmax = -std::numeric_limits<double>::infinity();
+            for (double v : vol.data()) {
+                if (std::isnan(v)) continue;
+                vmin = std::min(vmin, v); vmax = std::max(vmax, v);
+            }
+            if (!(vmin < vmax)) { vmin = 0.0; vmax = 1.0; }
+        }
+
+        VolumeGrid out{std::move(vol),
+                       {{spec.ox, spec.oy, spec.oz}},
+                       {{spec.dx, spec.dy, spec.dz}},
+                       vmin, vmax};
+        onOk(std::move(out));
+    } catch (const std::exception& e) {
+        onErr(std::string("LocalSample3dRepository::loadVolume: ") + e.what());
+    }
+}
+
+void LocalSample3dRepository::loadTerrainPaths(std::function<void(TerrainPaths)> onOk,
+                                               OnError onErr) {
+    try {
+        TerrainPaths p{base_.demPath(), base_.imagePath()};
+        onOk(std::move(p));
+    } catch (const std::exception& e) {
+        onErr(std::string("LocalSample3dRepository::loadTerrainPaths: ") + e.what());
+    }
+}
+
+}  // namespace geopro::data
diff --git a/src/data/repo/LocalSample3dRepository.hpp b/src/data/repo/LocalSample3dRepository.hpp
new file mode 100644
index 0000000..22353b9
--- /dev/null
+++ b/src/data/repo/LocalSample3dRepository.hpp
@@ -0,0 +1,34 @@
+#pragma once
+#include <functional>
+#include <string>
+
+#include "repo/I3dSceneRepository.hpp"
+
+namespace geopro::data {
+
+class LocalSampleRepository;
+
+// 本地样本三维场景仓储（spec §6）：组合 LocalSampleRepository。
+//   loadVolume：读两条交叉剖面散点 → 项目 CRS→WGS84→GeoLocalFrame 配准 → IDW → VolumeGrid（纯 core/data，无 VTK）。
+//   loadTerrainPaths：直透 LocalSampleRepository 的 demPath/imagePath。
+//   dimensionOf：按 ddCode 内置映射表（同步纯函数）。
+// 本地数据同步算好后直接回调（异步壳：接口异步，本实现内联完成）。
+class LocalSample3dRepository : public I3dSceneRepository {
+public:
+    // base 生命周期须覆盖本对象（由调用方保证）；projectCrs 为项目 CRS（如 "EPSG:4547"）。
+    // baseLat/baseLon 为全项目共享 GeoLocalFrame 原点（与帘面/地图同系，保证空间配准）。
+    LocalSample3dRepository(LocalSampleRepository& base, std::string projectCrs,
+                            double baseLat, double baseLon);
+
+    DsDimension dimensionOf(const DsRow& ds) const override;
+    void loadVolume(const std::string& dsId, std::function<void(VolumeGrid)> onOk,
+                    OnError onErr) override;
+    void loadTerrainPaths(std::function<void(TerrainPaths)> onOk, OnError onErr) override;
+
+private:
+    LocalSampleRepository& base_;
+    std::string projectCrs_;
+    double baseLat_, baseLon_;
+};
+
+}  // namespace geopro::data
diff --git a/src/render/Scene.cpp b/src/render/Scene.cpp
index f1d28b5..6181f06 100644
--- a/src/render/Scene.cpp
+++ b/src/render/Scene.cpp
@@ -17,4 +17,9 @@ void Scene::addActor(vtkActor* a)
     if (a) renderer_->AddActor(a);
 }
 
+void Scene::addViewProp(vtkProp* p)
+{
+    if (p) renderer_->AddViewProp(p);
+}
+
 }  // namespace geopro::render
diff --git a/src/render/Scene.hpp b/src/render/Scene.hpp
index 2cb49e3..9354243 100644
--- a/src/render/Scene.hpp
+++ b/src/render/Scene.hpp
@@ -2,6 +2,7 @@
 #include <vtkSmartPointer.h>
 #include <vtkRenderer.h>
 #include <vtkActor.h>
+#include <vtkProp.h>
 namespace geopro::render {
 
 // 单一渲染场景：持有 vtkRenderer（白底），统一管理 actor 的加入与清除。
@@ -12,8 +13,10 @@ public:
 
     vtkRenderer* renderer() const { return renderer_.Get(); }
 
-    void clear();                  // 移除所有 view prop，支持重复切换数据集
+    void clear();                  // 移除所有 view prop（含体绘制 vtkVolume），支持重复切换数据集
     void addActor(vtkActor* a);    // actor 由 renderer 引用计数保活
+    // 体绘制 vtkVolume 是 vtkProp3D（非 vtkActor），经此通用入口进场；prop 由 renderer 引用计数保活。
+    void addViewProp(vtkProp* p);
 
 private:
     vtkSmartPointer<vtkRenderer> renderer_;
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index cf0a2d8..f855bc5 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -36,6 +36,8 @@ target_link_libraries(geopro_tests PRIVATE geopro_core)
 
 target_sources(geopro_tests PRIVATE data/test_parsers.cpp)
 target_sources(geopro_tests PRIVATE data/test_local_repo.cpp)
+# I3dSceneRepository/LocalSample3dRepository：dimensionOf 映射 + loadVolume/loadTerrainPaths 异步回调（需 PROJ_DATA）。
+target_sources(geopro_tests PRIVATE data/test_3d_repo.cpp)
 target_sources(geopro_tests PRIVATE data/test_nav_dto.cpp)
 target_sources(geopro_tests PRIVATE data/test_dataset_chart_dto.cpp)
 target_sources(geopro_tests PRIVATE data/test_measurement_dto.cpp)
@@ -76,6 +78,8 @@ endif()
 # render 层：ColorLutBuilder（core ColorScale -> vtkLookupTable）。
 # 需 vtkLookupTable（VTK::CommonCore）；geopro_render 已 PUBLIC 传递其余 VTK 组件。
 find_package(VTK REQUIRED COMPONENTS CommonCore CommonDataModel RenderingCore)
+# Scene：addActor/addViewProp 计数 + clear 清空（vtkVolume 经 addViewProp 进场）。
+target_sources(geopro_tests PRIVATE render/test_scene.cpp)
 target_sources(geopro_tests PRIVATE render/test_color_lut.cpp)
 target_sources(geopro_tests PRIVATE render/test_contour_bands.cpp)
 # dd_voxel：buildVoxel(ScalarVolume->vtkImageData->GPU 体绘制) 构建不崩 + dims 正确。
@@ -117,6 +121,8 @@ target_sources(geopro_tests PRIVATE app/test_scatter_hover.cpp)
 find_package(Qt6 COMPONENTS Test REQUIRED)
 target_sources(geopro_tests PRIVATE controller/test_dataset_detail_controller.cpp)
 target_sources(geopro_tests PRIVATE controller/test_workbench_nav_controller.cpp)
+# VtkSceneController 编排：注入 fake repo + fake view，断言 视图模式×图层 组合下 add 的图元类型/数量；取消勾选清空。
+target_sources(geopro_tests PRIVATE controller/test_vtk_scene_controller.cpp)
 target_link_libraries(geopro_tests PRIVATE geopro_controller Qt6::Test)
 
 add_subdirectory(spike)   # spike S3: banded contour 渲染验证
diff --git a/tests/controller/test_vtk_scene_controller.cpp b/tests/controller/test_vtk_scene_controller.cpp
new file mode 100644
index 0000000..db8bf2c
--- /dev/null
+++ b/tests/controller/test_vtk_scene_controller.cpp
@@ -0,0 +1,167 @@
+#include <gtest/gtest.h>
+
+#include <functional>
+#include <string>
+#include <vector>
+
+#include "I3dSceneView.hpp"
+#include "VtkSceneController.hpp"
+#include "model/ColorScale.hpp"
+#include "model/Field.hpp"
+#include "repo/I3dSceneRepository.hpp"
+#include "repo/IDatasetRepository.hpp"
+
+using namespace geopro;
+using namespace geopro::controller;
+
+namespace {
+
+// 记录视图收到的图元调用类型/数量。
+struct FakeView : I3dSceneView {
+    int clears = 0;
+    int surveyLines = 0;
+    int curtains = 0;
+    int volumes = 0;
+    int terrains = 0;
+    int renders = 0;
+    bool lastIs2D = false;
+    double ve = -1.0;
+
+    // clear 模型化"移除所有图元"：图元计数归零（反映当前场景状态），clears 累加。
+    void clear() override {
+        ++clears;
+        surveyLines = curtains = volumes = terrains = 0;
+    }
+    void setVerticalExaggeration(double v) override { ve = v; }
+    void addSurveyLine(const core::Grid&) override { ++surveyLines; }
+    void addCurtain(const core::Grid&, const core::ColorScale&) override { ++curtains; }
+    void addVolume(const data::VolumeGrid&, const core::ColorScale&) override { ++volumes; }
+    void addTerrain(const data::TerrainPaths&) override { ++terrains; }
+    void render(bool is2D) override { ++renders; lastIs2D = is2D; }
+
+    int props() const { return surveyLines + curtains + volumes + terrains; }
+};
+
+// 同步小数据仓储：loadGrid 返回 2x2 grid，loadColorScale 返回两段色阶。
+struct FakeDsRepo : data::IDatasetRepository {
+    std::vector<data::GsNode> loadStructure() override { return {}; }
+    core::Grid loadGrid(const std::string&) override {
+        core::Grid g(2, 2);
+        g.lat = {22.0, 22.001};
+        g.lon = {114.0, 114.001};
+        return g;
+    }
+    core::ScatterField loadScatter(const std::string&) override { return {}; }
+    core::ColorScale loadColorScale(const std::string&) override {
+        core::ColorScale cs;
+        cs.addStop(0.0, core::Rgba{0, 0, 255, 255});
+        cs.addStop(1.0, core::Rgba{255, 0, 0, 255});
+        return cs;
+    }
+    core::ColorScale loadScatterColorScale(const std::string&) override { return loadColorScale(""); }
+    std::vector<core::Anomaly> loadAnomalies(const std::string&) override { return {}; }
+};
+
+// 同步三维仓储：dimensionOf 全当 3D；loadVolume 立即回调一个最小有效体。
+struct FakeSceneRepo : data::I3dSceneRepository {
+    data::DsDimension dimensionOf(const data::DsRow&) const override {
+        return data::DsDimension::Dim3D;
+    }
+    void loadVolume(const std::string&, std::function<void(data::VolumeGrid)> onOk,
+                    OnError) override {
+        data::VolumeGrid g;
+        g.vol = core::ScalarVolume(2, 2, 2);
+        g.spacing = {{1.0, 1.0, 1.0}};
+        g.vmin = 0.0; g.vmax = 1.0;
+        onOk(std::move(g));  // 同步回调（异步壳）
+    }
+    void loadTerrainPaths(std::function<void(data::TerrainPaths)> onOk, OnError) override {
+        onOk(data::TerrainPaths{"dem.tif", "image.tif"});
+    }
+};
+
+}  // namespace
+
+// 2D 模式 + 勾选 1 ds → 1 个测线 actor，无帘面/体素/地形。
+TEST(VtkSceneController, Map2DWithOneDatasetAddsSurveyLine) {
+    FakeDsRepo ds; FakeSceneRepo sc; FakeView view;
+    VtkSceneController c(ds, sc, view);
+    c.setViewMode(ViewMode::Map2D);
+    c.setCheckedDatasets({"ds1"});
+
+    EXPECT_EQ(view.surveyLines, 1);
+    EXPECT_EQ(view.curtains, 0);
+    EXPECT_EQ(view.volumes, 0);
+    EXPECT_GE(view.renders, 1);
+    EXPECT_TRUE(view.lastIs2D);
+}
+
+// 3D 模式 + 帘面图层 → 1 帘面 actor。
+TEST(VtkSceneController, View3DCurtainAddsCurtain) {
+    FakeDsRepo ds; FakeSceneRepo sc; FakeView view;
+    VtkSceneController c(ds, sc, view);
+    c.setViewMode(ViewMode::View3D);
+    c.setCheckedDatasets({"ds1"});
+
+    EXPECT_EQ(view.curtains, 1);
+    EXPECT_EQ(view.surveyLines, 0);
+    EXPECT_FALSE(view.lastIs2D);
+}
+
+// 3D + 帘面 + 体素 → 帘面 1 + 体素 1（体素经异步回调进场）。
+TEST(VtkSceneController, View3DWithVoxelAddsVolume) {
+    FakeDsRepo ds; FakeSceneRepo sc; FakeView view;
+    VtkSceneController c(ds, sc, view);
+    c.setViewMode(ViewMode::View3D);
+    c.setLayer(SceneLayer::Voxel, true);
+    c.setCheckedDatasets({"ds1"});
+
+    EXPECT_EQ(view.curtains, 1);
+    EXPECT_EQ(view.volumes, 1);
+}
+
+// 3D + 地形 → 地形 1（与勾选数据集无关，地形是场景图层）。
+TEST(VtkSceneController, View3DWithTerrainAddsTerrain) {
+    FakeDsRepo ds; FakeSceneRepo sc; FakeView view;
+    VtkSceneController c(ds, sc, view);
+    c.setViewMode(ViewMode::View3D);
+    c.setLayer(SceneLayer::Terrain, true);
+    c.setCheckedDatasets({"ds1"});
+
+    EXPECT_EQ(view.terrains, 1);
+    EXPECT_EQ(view.curtains, 1);
+}
+
+// 取消勾选 → clear 后无任何图元。
+TEST(VtkSceneController, UncheckAllClearsScene) {
+    FakeDsRepo ds; FakeSceneRepo sc; FakeView view;
+    VtkSceneController c(ds, sc, view);
+    c.setViewMode(ViewMode::View3D);
+    c.setCheckedDatasets({"ds1"});
+    ASSERT_EQ(view.curtains, 1);
+
+    c.setCheckedDatasets({});  // 取消全部勾选
+    EXPECT_EQ(view.curtains, 0);
+    EXPECT_EQ(view.volumes, 0);
+    // 最后一次重建仍调用 clear。
+    EXPECT_GE(view.clears, 2);
+}
+
+// 纵向比例传到视图。
+TEST(VtkSceneController, VerticalExaggerationForwarded) {
+    FakeDsRepo ds; FakeSceneRepo sc; FakeView view;
+    VtkSceneController c(ds, sc, view);
+    c.setViewMode(ViewMode::View3D);
+    c.setVerticalExaggeration(3.5);
+    c.setCheckedDatasets({"ds1"});
+    EXPECT_DOUBLE_EQ(view.ve, 3.5);
+}
+
+// 多个数据集 → 每个一个帘面。
+TEST(VtkSceneController, MultipleDatasetsAddMultipleCurtains) {
+    FakeDsRepo ds; FakeSceneRepo sc; FakeView view;
+    VtkSceneController c(ds, sc, view);
+    c.setViewMode(ViewMode::View3D);
+    c.setCheckedDatasets({"ds1", "ds2", "ds3"});
+    EXPECT_EQ(view.curtains, 3);
+}
diff --git a/tests/data/test_3d_repo.cpp b/tests/data/test_3d_repo.cpp
new file mode 100644
index 0000000..51da60a
--- /dev/null
+++ b/tests/data/test_3d_repo.cpp
@@ -0,0 +1,70 @@
+#include <gtest/gtest.h>
+
+#include <string>
+
+#include "repo/I3dSceneRepository.hpp"
+#include "repo/LocalSample3dRepository.hpp"
+#include "repo/LocalSampleRepository.hpp"
+
+using namespace geopro::data;
+
+static const std::string kDir =
+    "D:/Git/lanbingtech/geopro/docs/剖面网格数据的色阶数据2等文件/";
+static const std::string kCrs = "EPSG:4547";
+
+namespace {
+DsRow rowWith(const std::string& ddCode) {
+    DsRow r;
+    r.ddCode = ddCode;
+    return r;
+}
+}  // namespace
+
+// dimensionOf：各 ddCode → 维度映射（同步纯函数，spec §6.1）。
+TEST(LocalSample3dRepo, DimensionOfMapsDdCode) {
+    LocalSampleRepository base(kDir);
+    LocalSample3dRepository repo(base, kCrs, 22.0, 114.0);
+
+    EXPECT_EQ(repo.dimensionOf(rowWith("dd_voxel")), DsDimension::Dim3D);
+    EXPECT_EQ(repo.dimensionOf(rowWith("dd_Structual3D")), DsDimension::Dim3D);
+    EXPECT_EQ(repo.dimensionOf(rowWith("dd_Property3D")), DsDimension::Dim3D);
+    EXPECT_EQ(repo.dimensionOf(rowWith("dd_section")), DsDimension::Dim3D);
+    EXPECT_EQ(repo.dimensionOf(rowWith("dd_inversion_data")), DsDimension::Dim3D);
+    EXPECT_EQ(repo.dimensionOf(rowWith("dd_slice")), DsDimension::Analysis3D);
+    EXPECT_EQ(repo.dimensionOf(rowWith("dd_trajectory_data")), DsDimension::Dim2D);
+    EXPECT_EQ(repo.dimensionOf(rowWith("dd_unknown_xyz")), DsDimension::Other);
+}
+
+// loadVolume：回调收到有效 VolumeGrid（nx>0 且 vmax>vmin），需 PROJ_DATA。
+TEST(LocalSample3dRepo, LoadVolumeCallsBackWithValidGrid) {
+    LocalSampleRepository base(kDir);
+    LocalSample3dRepository repo(base, kCrs, 22.0, 114.0);
+
+    bool ok = false;
+    std::string err;
+    VolumeGrid got;
+    repo.loadVolume("voxel1", [&](VolumeGrid g) { ok = true; got = std::move(g); },
+                    [&](const std::string& m) { err = m; });
+
+    ASSERT_TRUE(ok) << "loadVolume onErr: " << err;
+    EXPECT_GT(got.vol.nx(), 0);
+    EXPECT_GT(got.vol.ny(), 0);
+    EXPECT_GT(got.vol.nz(), 0);
+    EXPECT_GT(got.vmax, got.vmin);
+    EXPECT_TRUE(got.valid());
+}
+
+// loadTerrainPaths：回调收到 dem/image 绝对路径（非空）。
+TEST(LocalSample3dRepo, LoadTerrainPathsCallsBack) {
+    LocalSampleRepository base(kDir);
+    LocalSample3dRepository repo(base, kCrs, 22.0, 114.0);
+
+    bool ok = false;
+    TerrainPaths got;
+    repo.loadTerrainPaths([&](TerrainPaths p) { ok = true; got = std::move(p); },
+                          [&](const std::string&) {});
+
+    ASSERT_TRUE(ok);
+    EXPECT_FALSE(got.demPath.empty());
+    EXPECT_FALSE(got.imagePath.empty());
+}
diff --git a/tests/render/test_scene.cpp b/tests/render/test_scene.cpp
new file mode 100644
index 0000000..ec3fad1
--- /dev/null
+++ b/tests/render/test_scene.cpp
@@ -0,0 +1,45 @@
+#include <gtest/gtest.h>
+
+#include <vtkActor.h>
+#include <vtkRenderer.h>
+#include <vtkSmartPointer.h>
+#include <vtkVolume.h>
+
+#include "Scene.hpp"
+
+using geopro::render::Scene;
+
+// addActor 把 vtkActor 加入 renderer，view prop 计数 +1。
+TEST(SceneTest, AddActorIncrementsViewProps) {
+    Scene scene;
+    EXPECT_EQ(scene.renderer()->GetViewProps()->GetNumberOfItems(), 0);
+    auto a = vtkSmartPointer<vtkActor>::New();
+    scene.addActor(a);
+    EXPECT_EQ(scene.renderer()->GetViewProps()->GetNumberOfItems(), 1);
+}
+
+// addViewProp 接受 vtkVolume（vtkProp3D，非 vtkActor）——体绘制必经此口。
+TEST(SceneTest, AddViewPropAcceptsVolume) {
+    Scene scene;
+    auto vol = vtkSmartPointer<vtkVolume>::New();
+    scene.addViewProp(vol);
+    EXPECT_EQ(scene.renderer()->GetViewProps()->GetNumberOfItems(), 1);
+}
+
+// clear() 经 RemoveAllViewProps 清空 actor 与 volume（覆盖体绘制 prop）。
+TEST(SceneTest, ClearRemovesActorsAndVolumes) {
+    Scene scene;
+    scene.addActor(vtkSmartPointer<vtkActor>::New());
+    scene.addViewProp(vtkSmartPointer<vtkVolume>::New());
+    EXPECT_EQ(scene.renderer()->GetViewProps()->GetNumberOfItems(), 2);
+    scene.clear();
+    EXPECT_EQ(scene.renderer()->GetViewProps()->GetNumberOfItems(), 0);
+}
+
+// 空指针安全：addActor/addViewProp(nullptr) 不崩、不增计数。
+TEST(SceneTest, NullPropsAreIgnored) {
+    Scene scene;
+    scene.addActor(nullptr);
+    scene.addViewProp(nullptr);
+    EXPECT_EQ(scene.renderer()->GetViewProps()->GetNumberOfItems(), 0);
+}
diff --git a/vcpkg.json b/vcpkg.json
index f515a80..1458de6 100644
--- a/vcpkg.json
+++ b/vcpkg.json
@@ -2,6 +2,7 @@
   "name": "geopro-desktop",
   "version": "0.1.0",
   "description": "Geopro 3.0 desktop client (Qt6 + VTK9) - M1. 方案②-修订: Qt/VTK/ADS/QtKeychain 对接官方 MSVC Qt(不走 vcpkg); 仅非 Qt 依赖走 vcpkg, 按层递增。",
+  "builtin-baseline": "10ceb139a610ebf3c6aa49cdc4a4b7f3db5d3f2b",
   "dependencies": [
     "eigen3",
     "gdal",