Merge 56598c47f4d4caf79a2aeb191a53dd52c01456bc into b046379b51c1db21d6f11c64e82871900bddb2c2

This test was never activated because the obj file was too big.

src/3d/qgs3dsceneexporter.cpp

@@ -83,6 +83,7 @@ typedef Qt3DCore::QGeometry Qt3DQGeometry;
 #include "qgs3dutils.h"
 #include "qgsimagetexture.h"
 #include "qgstessellatedpolygongeometry.h"
+#include "qgsgeotransform.h"
 
 #include <numeric>
 
@@ -285,15 +286,15 @@ void Qgs3DSceneExporter::parseTerrain( QgsTerrainEntity *terrain, const QString
   switch ( generator->type() )
   {
     case QgsTerrainGenerator::Dem:
-      terrainTile = getDemTerrainEntity( terrain, node );
+      terrainTile = getDemTerrainEntity( terrain, node, settings->origin() );
       parseDemTile( terrainTile, layerName + QStringLiteral( "_" ) );
       break;
     case QgsTerrainGenerator::Flat:
-      terrainTile = getFlatTerrainEntity( terrain, node );
+      terrainTile = getFlatTerrainEntity( terrain, node, settings->origin() );
       parseFlatTile( terrainTile, layerName + QStringLiteral( "_" ) );
       break;
     case QgsTerrainGenerator::Mesh:
-      terrainTile = getMeshTerrainEntity( terrain, node );
+      terrainTile = getMeshTerrainEntity( terrain, node, settings->origin() );
       parseMeshTile( terrainTile, layerName + QStringLiteral( "_" ) );
       break;
     // TODO: implement other terrain types
@@ -304,7 +305,7 @@ void Qgs3DSceneExporter::parseTerrain( QgsTerrainEntity *terrain, const QString
   textureGenerator->setTextureSize( oldResolution );
 }
 
-QgsTerrainTileEntity *Qgs3DSceneExporter::getFlatTerrainEntity( QgsTerrainEntity *terrain, QgsChunkNode *node )
+QgsTerrainTileEntity *Qgs3DSceneExporter::getFlatTerrainEntity( QgsTerrainEntity *terrain, QgsChunkNode *node, const QgsVector3D &mapOrigin )
 {
   QgsFlatTerrainGenerator *generator = dynamic_cast<QgsFlatTerrainGenerator *>( terrain->mapSettings()->terrainGenerator() );
   FlatTerrainChunkLoader *flatTerrainLoader = qobject_cast<FlatTerrainChunkLoader *>( generator->createChunkLoader( node ) );
@@ -313,10 +314,17 @@ QgsTerrainTileEntity *Qgs3DSceneExporter::getFlatTerrainEntity( QgsTerrainEntity
   // the entity we created will be deallocated once the scene exporter is deallocated
   Qt3DCore::QEntity *entity = flatTerrainLoader->createEntity( this );
   QgsTerrainTileEntity *tileEntity = qobject_cast<QgsTerrainTileEntity *>( entity );
+
+  const QList<QgsGeoTransform *> transforms = entity->findChildren<QgsGeoTransform *>();
+  for ( QgsGeoTransform *transform : transforms )
+  {
+    transform->setOrigin( mapOrigin );
+  }
+
   return tileEntity;
 }
 
-QgsTerrainTileEntity *Qgs3DSceneExporter::getDemTerrainEntity( QgsTerrainEntity *terrain, QgsChunkNode *node )
+QgsTerrainTileEntity *Qgs3DSceneExporter::getDemTerrainEntity( QgsTerrainEntity *terrain, QgsChunkNode *node, const QgsVector3D &mapOrigin )
 {
   // Just create a new tile (we don't need to export exact level of details as in the scene)
   // create the entity synchronously and then it will be deleted once our scene exporter instance is deallocated
@@ -327,16 +335,30 @@ QgsTerrainTileEntity *Qgs3DSceneExporter::getDemTerrainEntity( QgsTerrainEntity
   if ( mExportTextures )
     terrain->textureGenerator()->waitForFinished();
   QgsTerrainTileEntity *tileEntity = qobject_cast<QgsTerrainTileEntity *>( loader->createEntity( this ) );
+
+  const QList<QgsGeoTransform *> transforms = tileEntity->findChildren<QgsGeoTransform *>();
+  for ( QgsGeoTransform *transform : transforms )
+  {
+    transform->setOrigin( mapOrigin );
+  }
+
   delete generator;
   return tileEntity;
 }
 
-QgsTerrainTileEntity *Qgs3DSceneExporter::getMeshTerrainEntity( QgsTerrainEntity *terrain, QgsChunkNode *node )
+QgsTerrainTileEntity *Qgs3DSceneExporter::getMeshTerrainEntity( QgsTerrainEntity *terrain, QgsChunkNode *node, const QgsVector3D &mapOrigin )
 {
   QgsMeshTerrainGenerator *generator = dynamic_cast<QgsMeshTerrainGenerator *>( terrain->mapSettings()->terrainGenerator() );
   QgsMeshTerrainTileLoader *loader = qobject_cast<QgsMeshTerrainTileLoader *>( generator->createChunkLoader( node ) );
   // TODO: export textures
   QgsTerrainTileEntity *tileEntity = qobject_cast<QgsTerrainTileEntity *>( loader->createEntity( this ) );
+
+  const QList<QgsGeoTransform *> transforms = tileEntity->findChildren<QgsGeoTransform *>();
+  for ( QgsGeoTransform *transform : transforms )
+  {
+    transform->setOrigin( mapOrigin );
+  }
+
   return tileEntity;
 }
 

src/3d/qgs3dsceneexporter.h

@@ -37,12 +37,13 @@ class QgsDemTerrainGenerator;
 class QgsChunkNode;
 class Qgs3DExportObject;
 class QgsTerrainTextureGenerator;
+class QgsVector3D;
 class QgsVectorLayer;
 class QgsPolygon3DSymbol;
 class QgsLine3DSymbol;
 class QgsPoint3DSymbol;
 class QgsMeshEntity;
-class TestQgs3DRendering;
+class TestQgs3DExporter;
 
 #define SIP_NO_FILE
 
@@ -126,11 +127,11 @@ class _3D_EXPORT Qgs3DSceneExporter : public Qt3DCore::QEntity
     Qgs3DExportObject *processPoints( Qt3DCore::QEntity *entity, const QString &objectNamePrefix );
 
     //! Returns a tile entity that contains the geometry to be exported and necessary scaling parameters
-    QgsTerrainTileEntity *getFlatTerrainEntity( QgsTerrainEntity *terrain, QgsChunkNode *node );
+    QgsTerrainTileEntity *getFlatTerrainEntity( QgsTerrainEntity *terrain, QgsChunkNode *node, const QgsVector3D &mapOrigin );
     //! Returns a tile entity that contains the geometry to be exported and necessary scaling parameters
-    QgsTerrainTileEntity *getDemTerrainEntity( QgsTerrainEntity *terrain, QgsChunkNode *node );
+    QgsTerrainTileEntity *getDemTerrainEntity( QgsTerrainEntity *terrain, QgsChunkNode *node, const QgsVector3D &mapOrigin );
     //! Returns a tile entity that contains the geometry to be exported and necessary scaling parameters
-    QgsTerrainTileEntity *getMeshTerrainEntity( QgsTerrainEntity *terrain, QgsChunkNode *node );
+    QgsTerrainTileEntity *getMeshTerrainEntity( QgsTerrainEntity *terrain, QgsChunkNode *node, const QgsVector3D &mapOrigin );
 
     //! Constructs a Qgs3DExportObject from the DEM tile entity
     void parseDemTile( QgsTerrainTileEntity *tileEntity, const QString &layerName );
@@ -157,7 +158,7 @@ class _3D_EXPORT Qgs3DSceneExporter : public Qt3DCore::QEntity
     friend QgsPolygon3DSymbol;
     friend QgsLine3DSymbol;
     friend QgsPoint3DSymbol;
-    friend TestQgs3DRendering;
+    friend TestQgs3DExporter;
 };
 
 #endif // QGS3DSCENEEXPORTER_H

tests/src/3d/CMakeLists.txt

@@ -21,6 +21,7 @@ add_subdirectory(sandbox)
 
 set(TESTS
   testqgs3dcameracontroller.cpp
+  testqgs3dexporter.cpp
   testqgs3dmapscene.cpp
   testqgs3dmaterial.cpp
   testqgs3drendering.cpp

tests/src/3d/testqgs3dexporter.cpp

@@ -0,0 +1,302 @@
+/***************************************************************************
+  testqgs3dexporter.cpp
+  --------------------------------------
+  Date                 : September 2025
+  Copyright            : (C) 2025 by Jean Felder
+  Email                : jean dot felder at oslandia dot com
+ ***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#include "qgstest.h"
+
+#include "qgsrasterlayer.h"
+#include "qgsvectorlayer.h"
+
+#include "qgs3d.h"
+#include "qgs3dmapscene.h"
+#include "qgs3dmapsettings.h"
+#include "qgs3drendercontext.h"
+#include "qgs3dsceneexporter.h"
+#include "qgs3dutils.h"
+#include "qgsdemterrainsettings.h"
+#include "qgsflatterraingenerator.h"
+#include "qgsflatterrainsettings.h"
+#include "qgsoffscreen3dengine.h"
+#include "qgspointlightsettings.h"
+#include "qgspolygon3dsymbol.h"
+#include "qgsvectorlayer3drenderer.h"
+
+
+class TestQgs3DExporter : public QgsTest
+{
+    Q_OBJECT
+
+  public:
+    TestQgs3DExporter()
+      : QgsTest( QStringLiteral( "3D Exporter Tests" ), QStringLiteral( "3d" ) )
+    {}
+
+  private slots:
+    void initTestCase();    // will be called before the first testfunction is executed.
+    void cleanupTestCase(); // will be called after the last testfunction was executed.
+    void test3DSceneExporter();
+    void test3DSceneExporterBig();
+    void test3DSceneExporterFlatTerrain();
+
+  private:
+    void do3DSceneExport( const QString &testName, int zoomLevelsCount, int expectedObjectCount, int expectedFeatureCount, int maxFaceCount, Qgs3DMapScene *scene, QgsVectorLayer *layerPoly, QgsOffscreen3DEngine *engine, QgsTerrainEntity *terrainEntity = nullptr );
+
+    QgsVectorLayer *mLayerBuildings = nullptr;
+};
+
+// runs before all tests
+void TestQgs3DExporter::initTestCase()
+{
+  // init QGIS's paths - true means that all path will be inited from prefix
+  QgsApplication::init();
+  QgsApplication::initQgis();
+  Qgs3D::initialize();
+
+  mLayerBuildings = new QgsVectorLayer( testDataPath( "/3d/buildings.shp" ), "buildings", "ogr" );
+  QVERIFY( mLayerBuildings->isValid() );
+
+  // best to keep buildings without 2D renderer so it is not painted on the terrain
+  // so we do not get some possible artifacts
+  mLayerBuildings->setRenderer( nullptr );
+
+  QgsPhongMaterialSettings materialSettings;
+  materialSettings.setAmbient( Qt::lightGray );
+  QgsPolygon3DSymbol *symbol3d = new QgsPolygon3DSymbol;
+  symbol3d->setMaterialSettings( materialSettings.clone() );
+  symbol3d->setExtrusionHeight( 10.f );
+  symbol3d->setAltitudeClamping( Qgis::AltitudeClamping::Relative );
+  QgsVectorLayer3DRenderer *renderer3d = new QgsVectorLayer3DRenderer( symbol3d );
+  mLayerBuildings->setRenderer3D( renderer3d );
+}
+
+//runs after all tests
+void TestQgs3DExporter::cleanupTestCase()
+{
+  QgsApplication::exitQgis();
+}
+
+void TestQgs3DExporter::do3DSceneExport( const QString &testName, int zoomLevelsCount, int expectedObjectCount, int expectedFeatureCount, int maxFaceCount, Qgs3DMapScene *scene, QgsVectorLayer *layerPoly, QgsOffscreen3DEngine *engine, QgsTerrainEntity *terrainEntity )
+{
+  // 3d renderer must be replaced to have the tiling updated
+  QgsVectorLayer3DRenderer *renderer3d = dynamic_cast<QgsVectorLayer3DRenderer *>( layerPoly->renderer3D() );
+  QgsVectorLayer3DRenderer *newRenderer3d = new QgsVectorLayer3DRenderer( renderer3d->symbol()->clone() );
+  QgsVectorLayer3DTilingSettings tilingSettings;
+  tilingSettings.setZoomLevelsCount( zoomLevelsCount );
+  tilingSettings.setShowBoundingBoxes( true );
+  newRenderer3d->setTilingSettings( tilingSettings );
+  layerPoly->setRenderer3D( newRenderer3d );
+
+  Qgs3DUtils::captureSceneImage( *engine, scene );
+
+  Qgs3DSceneExporter exporter;
+  exporter.setTerrainResolution( 128 );
+  exporter.setSmoothEdges( false );
+  exporter.setExportNormals( true );
+  exporter.setExportTextures( false );
+  exporter.setTerrainTextureResolution( 512 );
+  exporter.setScale( 1.0 );
+
+  QVERIFY( exporter.parseVectorLayerEntity( scene->layerEntity( layerPoly ), layerPoly ) );
+  if ( terrainEntity )
+    exporter.parseTerrain( terrainEntity, "DEM_Tile" );
+
+  QString objFileName = QString( "%1-%2" ).arg( testName ).arg( zoomLevelsCount );
+  const bool saved = exporter.save( objFileName, QDir::tempPath(), 3 );
+  QVERIFY( saved );
+
+  size_t sum = 0;
+  for ( auto o : qAsConst( exporter.mObjects ) )
+  {
+    if ( !terrainEntity ) // not compatible with terrain entity
+      QVERIFY( o->indexes().size() * 3 <= o->vertexPosition().size() );
+    sum += o->indexes().size();
+  }
+
+  QCOMPARE( sum, maxFaceCount );
+  QCOMPARE( exporter.mExportedFeatureIds.size(), expectedFeatureCount );
+  QCOMPARE( exporter.mObjects.size(), expectedObjectCount );
+
+  QFile file( QString( "%1/%2.obj" ).arg( QDir::tempPath(), objFileName ) );
+  file.open( QIODevice::ReadOnly | QIODevice::Text );
+  QTextStream fileStream( &file );
+
+  // check the generated obj file
+  QGSCOMPARELONGSTR( testName.toStdString().c_str(), QString( "%1.obj" ).arg( objFileName ), fileStream.readAll().toUtf8() );
+}
+
+void TestQgs3DExporter::test3DSceneExporter()
+{
+  QgsVectorLayer *layerPoly = new QgsVectorLayer( testDataPath( "/3d/polygons.gpkg.gz" ), "polygons", "ogr" );
+  QVERIFY( layerPoly->isValid() );
+
+  const QgsRectangle fullExtent = layerPoly->extent();
+
+  QgsPolygon3DSymbol *symbol3d = new QgsPolygon3DSymbol();
+  symbol3d->setExtrusionHeight( 10.f );
+  QgsPhongMaterialSettings materialSettings;
+  materialSettings.setAmbient( Qt::lightGray );
+  symbol3d->setMaterialSettings( materialSettings.clone() );
+
+  QgsVectorLayer3DRenderer *renderer3d = new QgsVectorLayer3DRenderer( symbol3d );
+  layerPoly->setRenderer3D( renderer3d );
+
+  QgsProject project;
+  project.setCrs( QgsCoordinateReferenceSystem::fromEpsgId( 3857 ) );
+  project.addMapLayer( layerPoly );
+
+  Qgs3DMapSettings mapSettings;
+  mapSettings.setCrs( project.crs() );
+  mapSettings.setExtent( fullExtent );
+  mapSettings.setLayers( { layerPoly } );
+
+  mapSettings.setTransformContext( project.transformContext() );
+  mapSettings.setPathResolver( project.pathResolver() );
+  mapSettings.setMapThemeCollection( project.mapThemeCollection() );
+  mapSettings.setOutputDpi( 92 );
+
+  QPoint winSize = QPoint( 640, 480 ); // default window size
+
+  QgsOffscreen3DEngine engine;
+  engine.setSize( QSize( winSize.x(), winSize.y() ) );
+  Qgs3DMapScene *scene = new Qgs3DMapScene( mapSettings, &engine );
+
+  scene->cameraController()->setLookingAtPoint( QgsVector3D( 0, 0, 0 ), 7000, 20.0, -10.0 );
+  engine.setRootEntity( scene );
+
+  const int nbFaces = 165;
+  const int nbFeat = 3;
+
+  // =========== check with 1 big tile ==> 1 exported object
+  do3DSceneExport( "scene_export", 1, 1, nbFeat, nbFaces, scene, layerPoly, &engine );
+  // =========== check with 4 tiles ==> 1 exported objects
+  do3DSceneExport( "scene_export", 2, 1, nbFeat, nbFaces, scene, layerPoly, &engine );
+  // =========== check with 9 tiles ==> 3 exported objects
+  do3DSceneExport( "scene_export", 3, 3, nbFeat, nbFaces, scene, layerPoly, &engine );
+  // =========== check with 16 tiles ==> 3 exported objects
+  do3DSceneExport( "scene_export", 4, 3, nbFeat, nbFaces, scene, layerPoly, &engine );
+  // =========== check with 25 tiles ==> 3 exported objects
+  do3DSceneExport( "scene_export", 5, 3, nbFeat, nbFaces, scene, layerPoly, &engine );
+
+  delete scene;
+  mapSettings.setLayers( {} );
+}
+
+void TestQgs3DExporter::test3DSceneExporterBig()
+{
+  QgsRasterLayer *layerDtm = new QgsRasterLayer( testDataPath( "/3d/dtm.tif" ), "dtm", "gdal" );
+  QVERIFY( layerDtm->isValid() );
+
+  const QgsRectangle fullExtent = layerDtm->extent();
+
+  QgsProject project;
+  project.setCrs( layerDtm->crs() );
+  project.addMapLayer( layerDtm );
+
+  Qgs3DMapSettings mapSettings;
+  mapSettings.setCrs( project.crs() );
+  mapSettings.setExtent( fullExtent );
+  mapSettings.setLayers( { layerDtm, mLayerBuildings } );
+
+  mapSettings.setTransformContext( project.transformContext() );
+  mapSettings.setPathResolver( project.pathResolver() );
+  mapSettings.setMapThemeCollection( project.mapThemeCollection() );
+
+  QgsDemTerrainSettings *demTerrainSettings = new QgsDemTerrainSettings;
+  demTerrainSettings->setLayer( layerDtm );
+  demTerrainSettings->setVerticalScale( 3 );
+  mapSettings.setTerrainSettings( demTerrainSettings );
+
+  QgsPointLightSettings defaultPointLight;
+  defaultPointLight.setPosition( QgsVector3D( 0, 400, 0 ) );
+  defaultPointLight.setConstantAttenuation( 0 );
+  mapSettings.setLightSources( { defaultPointLight.clone() } );
+  mapSettings.setOutputDpi( 92 );
+
+  QPoint winSize = QPoint( 640, 480 ); // default window size
+
+  QgsOffscreen3DEngine engine;
+  engine.setSize( QSize( winSize.x(), winSize.y() ) );
+  Qgs3DMapScene *scene = new Qgs3DMapScene( mapSettings, &engine );
+  engine.setRootEntity( scene );
+
+  scene->cameraController()->setLookingAtPoint( QVector3D( 0, 0, 0 ), 1500, 40.0, -10.0 );
+
+  const int nbFaces = 19869;
+  const int nbFeat = 401;
+
+  // =========== check with 1 big tile ==> 1 exported object
+  do3DSceneExport( "big_scene_export", 1, 1, nbFeat, nbFaces, scene, mLayerBuildings, &engine );
+  // =========== check with 4 tiles ==> 4 exported objects
+  do3DSceneExport( "big_scene_export", 2, 4, nbFeat, nbFaces, scene, mLayerBuildings, &engine );
+  // =========== check with 9 tiles ==> 14 exported objects
+  do3DSceneExport( "big_scene_export", 3, 14, nbFeat, nbFaces, scene, mLayerBuildings, &engine );
+  // =========== check with 16 tiles ==> 32 exported objects
+  do3DSceneExport( "big_scene_export", 4, 32, nbFeat, nbFaces, scene, mLayerBuildings, &engine );
+  // =========== check with 25 tiles ==> 70 exported objects
+  do3DSceneExport( "big_scene_export", 5, 70, nbFeat, nbFaces, scene, mLayerBuildings, &engine );
+
+  delete scene;
+  mapSettings.setLayers( {} );
+}
+
+void TestQgs3DExporter::test3DSceneExporterFlatTerrain()
+{
+  QgsRasterLayer *layerRgb = new QgsRasterLayer( testDataPath( "/3d/rgb.tif" ), "rgb", "gdal" );
+  QVERIFY( layerRgb->isValid() );
+
+  const QgsRectangle fullExtent = layerRgb->extent();
+
+  QgsProject project;
+  project.setCrs( layerRgb->crs() );
+  project.addMapLayer( layerRgb );
+
+  Qgs3DMapSettings mapSettings;
+  mapSettings.setCrs( project.crs() );
+  mapSettings.setExtent( fullExtent );
+  mapSettings.setLayers( { layerRgb, mLayerBuildings } );
+
+  mapSettings.setTransformContext( project.transformContext() );
+  mapSettings.setPathResolver( project.pathResolver() );
+  mapSettings.setMapThemeCollection( project.mapThemeCollection() );
+
+  QgsFlatTerrainSettings *flatTerrainSettings = new QgsFlatTerrainSettings;
+  mapSettings.setTerrainSettings( flatTerrainSettings );
+
+  std::unique_ptr<QgsTerrainGenerator> generator = flatTerrainSettings->createTerrainGenerator( Qgs3DRenderContext::fromMapSettings( &mapSettings ) );
+  QVERIFY( dynamic_cast<QgsFlatTerrainGenerator *>( generator.get() )->isValid() );
+  QCOMPARE( dynamic_cast<QgsFlatTerrainGenerator *>( generator.get() )->crs(), mapSettings.crs() );
+
+  QgsPointLightSettings defaultPointLight;
+  defaultPointLight.setPosition( QgsVector3D( 0, 400, 0 ) );
+  defaultPointLight.setConstantAttenuation( 0 );
+  mapSettings.setLightSources( { defaultPointLight.clone() } );
+  mapSettings.setOutputDpi( 92 );
+
+  QPoint winSize = QPoint( 640, 480 ); // default window size
+
+  QgsOffscreen3DEngine engine;
+  engine.setSize( QSize( winSize.x(), winSize.y() ) );
+  Qgs3DMapScene *scene = new Qgs3DMapScene( mapSettings, &engine );
+  engine.setRootEntity( scene );
+
+  scene->cameraController()->setLookingAtPoint( QVector3D( 0, 0, 0 ), 1500, 40.0, -10.0 );
+
+  do3DSceneExport( "flat_terrain_scene_export", 5, 70, 401, 19875, scene, mLayerBuildings, &engine, scene->terrainEntity() );
+
+  delete scene;
+  mapSettings.setLayers( {} );
+}
+
+QGSTEST_MAIN( TestQgs3DExporter )
+#include "testqgs3dexporter.moc"

tests/src/3d/testqgs3drendering.cpp

@@ -50,7 +50,6 @@
 #include "qgsfillsymbol.h"
 #include "qgsmarkersymbol.h"
 #include "qgsgoochmaterialsettings.h"
-#include "qgs3dsceneexporter.h"
 #include "qgsdirectionallightsettings.h"
 #include "qgsmetalroughmaterialsettings.h"
 #include "qgspointlightsettings.h"
@@ -109,14 +108,10 @@ class TestQgs3DRendering : public QgsTest
     void testDepthBuffer();
     void testAmbientOcclusion();
     void testDebugMap();
-    void test3DSceneExporter();
-    void test3DSceneExporterBig();
 
   private:
     QImage convertDepthImageToGrayscaleImage( const QImage &depthImage );
 
-    void do3DSceneExport( const QString &testName, int zoomLevelsCount, int expectedObjectCount, int expectedFeatureCount, int maxFaceCount, Qgs3DMapScene *scene, QgsVectorLayer *layerPoly, QgsOffscreen3DEngine *engine, QgsTerrainEntity *terrainEntity = nullptr );
-
     std::unique_ptr<QgsProject> mProject;
     QgsRasterLayer *mLayerDtm = nullptr;
     QgsRasterLayer *mLayerRgb = nullptr;
@@ -2392,190 +2387,5 @@ void TestQgs3DRendering::testDebugMap()
   mapSettings.setLayers( {} );
 }
 
-void TestQgs3DRendering::do3DSceneExport( const QString &testName, int zoomLevelsCount, int expectedObjectCount, int expectedFeatureCount, int maxFaceCount, Qgs3DMapScene *scene, QgsVectorLayer *layerPoly, QgsOffscreen3DEngine *engine, QgsTerrainEntity *terrainEntity )
-{
-  // 3d renderer must be replaced to have the tiling updated
-  QgsVectorLayer3DRenderer *renderer3d = dynamic_cast<QgsVectorLayer3DRenderer *>( layerPoly->renderer3D() );
-  QgsVectorLayer3DRenderer *newRenderer3d = new QgsVectorLayer3DRenderer( renderer3d->symbol()->clone() );
-  QgsVectorLayer3DTilingSettings tilingSettings;
-  tilingSettings.setZoomLevelsCount( zoomLevelsCount );
-  tilingSettings.setShowBoundingBoxes( true );
-  newRenderer3d->setTilingSettings( tilingSettings );
-  layerPoly->setRenderer3D( newRenderer3d );
-
-  Qgs3DUtils::captureSceneImage( *engine, scene );
-
-  Qgs3DSceneExporter exporter;
-  exporter.setTerrainResolution( 128 );
-  exporter.setSmoothEdges( false );
-  exporter.setExportNormals( true );
-  exporter.setExportTextures( false );
-  exporter.setTerrainTextureResolution( 512 );
-  exporter.setScale( 1.0 );
-
-  QVERIFY( exporter.parseVectorLayerEntity( scene->layerEntity( layerPoly ), layerPoly ) );
-  if ( terrainEntity )
-    exporter.parseTerrain( terrainEntity, "DEM_Tile" );
-
-  QString objFileName = QString( "%1-%2" ).arg( testName ).arg( zoomLevelsCount );
-  const bool saved = exporter.save( objFileName, QDir::tempPath(), 3 );
-  QVERIFY( saved );
-
-  int sum = 0;
-  for ( auto o : qAsConst( exporter.mObjects ) )
-  {
-    if ( !terrainEntity ) // not comptabible with terrain entity
-      QVERIFY( o->indexes().size() * 3 <= o->vertexPosition().size() );
-    sum += o->indexes().size();
-  }
-
-  QCOMPARE( sum, maxFaceCount );
-  QCOMPARE( exporter.mExportedFeatureIds.size(), expectedFeatureCount );
-  QCOMPARE( exporter.mObjects.size(), expectedObjectCount );
-
-  QFile file( QString( "%1/%2.obj" ).arg( QDir::tempPath(), objFileName ) );
-  file.open( QIODevice::ReadOnly | QIODevice::Text );
-  QTextStream fileStream( &file );
-
-  if ( !terrainEntity ) // dump with terrain are too big to stay in GIT
-    QGSCOMPARELONGSTR( testName.toStdString().c_str(), QString( "%1.obj" ).arg( objFileName ), fileStream.readAll().toUtf8() );
-}
-
-void TestQgs3DRendering::test3DSceneExporter()
-{
-  // =============================================
-  // =========== creating Qgs3DMapSettings
-  QgsVectorLayer *layerPoly = new QgsVectorLayer( testDataPath( "/3d/polygons.gpkg.gz" ), "polygons", "ogr" );
-  QVERIFY( layerPoly->isValid() );
-
-  const QgsRectangle fullExtent = layerPoly->extent();
-
-  // =========== create polygon 3D renderer
-  QgsPolygon3DSymbol *symbol3d = new QgsPolygon3DSymbol();
-  symbol3d->setExtrusionHeight( 10.f );
-  QgsPhongMaterialSettings materialSettings;
-  materialSettings.setAmbient( Qt::lightGray );
-  symbol3d->setMaterialSettings( materialSettings.clone() );
-
-  QgsVectorLayer3DRenderer *renderer3d = new QgsVectorLayer3DRenderer( symbol3d );
-  layerPoly->setRenderer3D( renderer3d );
-
-  QgsProject project;
-  project.setCrs( QgsCoordinateReferenceSystem::fromEpsgId( 3857 ) );
-  project.addMapLayer( layerPoly );
-
-  // =========== create scene 3D settings
-  Qgs3DMapSettings mapSettings;
-  mapSettings.setCrs( project.crs() );
-  mapSettings.setExtent( fullExtent );
-  mapSettings.setLayers( { layerPoly } );
-
-  mapSettings.setTransformContext( project.transformContext() );
-  mapSettings.setPathResolver( project.pathResolver() );
-  mapSettings.setMapThemeCollection( project.mapThemeCollection() );
-  mapSettings.setOutputDpi( 92 );
-
-  // =========== creating Qgs3DMapScene
-  QPoint winSize = QPoint( 640, 480 ); // default window size
-
-  QgsOffscreen3DEngine engine;
-  engine.setSize( QSize( winSize.x(), winSize.y() ) );
-  Qgs3DMapScene *scene = new Qgs3DMapScene( mapSettings, &engine );
-
-  scene->cameraController()->setLookingAtPoint( QgsVector3D( 0, 0, 0 ), 7000, 20.0, -10.0 );
-  engine.setRootEntity( scene );
-
-  const int nbFaces = 165;
-  const int nbFeat = 3;
-
-  // =========== check with 1 big tile ==> 1 exported object
-  do3DSceneExport( "scene_export", 1, 1, nbFeat, nbFaces, scene, layerPoly, &engine );
-  // =========== check with 4 tiles ==> 1 exported objects
-  do3DSceneExport( "scene_export", 2, 1, nbFeat, nbFaces, scene, layerPoly, &engine );
-  // =========== check with 9 tiles ==> 3 exported objects
-  do3DSceneExport( "scene_export", 3, 3, nbFeat, nbFaces, scene, layerPoly, &engine );
-  // =========== check with 16 tiles ==> 3 exported objects
-  do3DSceneExport( "scene_export", 4, 3, nbFeat, nbFaces, scene, layerPoly, &engine );
-  // =========== check with 25 tiles ==> 3 exported objects
-  do3DSceneExport( "scene_export", 5, 3, nbFeat, nbFaces, scene, layerPoly, &engine );
-
-  delete scene;
-  mapSettings.setLayers( {} );
-}
-
-void TestQgs3DRendering::test3DSceneExporterBig()
-{
-  // In Qt 6, this test does not work on CI
-  // because somewhere after 10K lines, one of the values is -0.304 instead of -0.305
-#if QT_VERSION >= QT_VERSION_CHECK( 6, 0, 0 )
-  if ( QgsTest::isCIRun() )
-  {
-    QSKIP( "fails on CI" );
-  }
-#endif
-
-  // =============================================
-  // =========== creating Qgs3DMapSettings
-  QgsRasterLayer *layerDtm = new QgsRasterLayer( testDataPath( "/3d/dtm.tif" ), "dtm", "gdal" );
-  QVERIFY( layerDtm->isValid() );
-
-  const QgsRectangle fullExtent = layerDtm->extent();
-
-  QgsProject project;
-  project.setCrs( layerDtm->crs() );
-  project.addMapLayer( layerDtm );
-
-  Qgs3DMapSettings mapSettings;
-  mapSettings.setCrs( project.crs() );
-  mapSettings.setExtent( fullExtent );
-  mapSettings.setLayers( { layerDtm, mLayerBuildings } );
-
-  mapSettings.setTransformContext( project.transformContext() );
-  mapSettings.setPathResolver( project.pathResolver() );
-  mapSettings.setMapThemeCollection( project.mapThemeCollection() );
-
-  QgsDemTerrainSettings *demTerrainSettings = new QgsDemTerrainSettings;
-  demTerrainSettings->setLayer( layerDtm );
-  demTerrainSettings->setVerticalScale( 3 );
-  mapSettings.setTerrainSettings( demTerrainSettings );
-
-  QgsPointLightSettings defaultPointLight;
-  defaultPointLight.setPosition( QgsVector3D( 0, 400, 0 ) );
-  defaultPointLight.setConstantAttenuation( 0 );
-  mapSettings.setLightSources( { defaultPointLight.clone() } );
-  mapSettings.setOutputDpi( 92 );
-
-  // =========== creating Qgs3DMapScene
-  QPoint winSize = QPoint( 640, 480 ); // default window size
-
-  QgsOffscreen3DEngine engine;
-  engine.setSize( QSize( winSize.x(), winSize.y() ) );
-  Qgs3DMapScene *scene = new Qgs3DMapScene( mapSettings, &engine );
-  engine.setRootEntity( scene );
-
-  // =========== set camera position
-  scene->cameraController()->setLookingAtPoint( QVector3D( 0, 0, 0 ), 1500, 40.0, -10.0 );
-
-  const int nbFaces = 19869;
-  const int nbFeat = 401;
-
-  // =========== check with 1 big tile ==> 1 exported object
-  do3DSceneExport( "big_scene_export", 1, 1, nbFeat, nbFaces, scene, mLayerBuildings, &engine );
-  // =========== check with 4 tiles ==> 4 exported objects
-  do3DSceneExport( "big_scene_export", 2, 4, nbFeat, nbFaces, scene, mLayerBuildings, &engine );
-  // =========== check with 9 tiles ==> 14 exported objects
-  do3DSceneExport( "big_scene_export", 3, 14, nbFeat, nbFaces, scene, mLayerBuildings, &engine );
-  // =========== check with 16 tiles ==> 32 exported objects
-  do3DSceneExport( "big_scene_export", 4, 32, nbFeat, nbFaces, scene, mLayerBuildings, &engine );
-  // =========== check with 25 tiles ==> 70 exported objects
-  do3DSceneExport( "big_scene_export", 5, 70, nbFeat, nbFaces, scene, mLayerBuildings, &engine );
-
-  // =========== check with 25 tiles + terrain ==> 70+1 exported objects
-  do3DSceneExport( "terrain_scene_export", 5, 71, nbFeat, 119715, scene, mLayerBuildings, &engine, scene->terrainEntity() );
-
-  delete scene;
-  mapSettings.setLayers( {} );
-}
-
 QGSTEST_MAIN( TestQgs3DRendering )
 #include "testqgs3drendering.moc"