Enable Qt Quick3D support

CMakeLists.txt

@@ -117,7 +117,7 @@ if (ANDROID)
   set(ANDROID_PACKAGE_SOURCE_DIR ${CMAKE_BINARY_DIR}/android-template)
 endif()
 
-find_package(Qt6 COMPONENTS Concurrent Core Qml Gui Xml Positioning Widgets Network Quick Svg Sql Sensors WebView Multimedia Bluetooth Nfc WebSockets REQUIRED)
+find_package(Qt6 COMPONENTS Concurrent Core Qml Gui Xml Positioning Widgets Network Quick Svg Sql Sensors WebView Multimedia Bluetooth Nfc WebSockets Quick3D REQUIRED)
 
 if(NOT CMAKE_SYSTEM_NAME STREQUAL "iOS")
   find_package(Qt6 COMPONENTS PrintSupport REQUIRED)

cmake/qgis-cmake-wrapper.cmake

@@ -134,6 +134,8 @@ if(TRUE) # Should possibly have a "static only" check
   endif()
   find_package(poly2tri CONFIG)
   target_link_libraries(QGIS::Core INTERFACE poly2tri::poly2tri)
+  find_package(meshoptimizer CONFIG REQUIRED)
+  target_link_libraries(QGIS::Core INTERFACE meshoptimizer::meshoptimizer)
 
   pkg_check_modules(freexl REQUIRED IMPORTED_TARGET freexl)
   target_link_libraries(QGIS::Core INTERFACE PkgConfig::freexl)

src/core/CMakeLists.txt

@@ -354,6 +354,7 @@ target_link_libraries(
          Qt::WebView
          Qt::Multimedia
          Qt::WebSockets
+         Qt::Quick3D
          QGIS::Core
          QGIS::Analysis
          ZXing::ZXing

src/qml/Dummy.qml

@@ -0,0 +1,9 @@
+// This file is used to add extra imports for the qml import scanner to add additional modules
+import QtQuick3D
+import QtQuick3D.AssetUtils
+import QtQuick3D.Helpers
+import QtQuick3D.Particles3D
+import QtWebSockets
+
+Item {
+}

src/qml/qgismobileapp.qml

@@ -14,15 +14,14 @@
  *   (at your option) any later version.                                   *
  *                                                                         *
  ***************************************************************************/
+import QtCore
 import QtQuick
 import QtQuick.Controls
 import QtQuick.Controls.Material
 import QtQuick.Effects
 import QtQuick.Window
 import QtQml
 import QtSensors
-import QtCore
-import QtWebSockets // Not used here but added so QML registers its dependencies for plugins to use
 import org.qgis
 import org.qfield
 import Theme

src/qml/qml.qrc

@@ -13,6 +13,7 @@
         <file>CoordinateLocator.qml</file>
         <file>DashBoard.qml</file>
         <file>DigitizingToolbar.qml</file>
+        <file>Dummy.qml</file>
         <file>ElevationProfile.qml</file>
         <file>FeatureForm.qml</file>
         <file>FeatureListForm.qml</file>

vcpkg.json

@@ -84,6 +84,7 @@
         "qml"
       ]
     },
+    "qtquick3d",
     {
       "name": "qtsensors",
       "features": [

vcpkg/ports/qgis/meshoptimizer.patch

@@ -0,0 +1,60 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index e299cb1d617..ae6482b4e90 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -255,6 +255,7 @@ if(WITH_CORE)
+
+   # try to configure and build POLY2TRI support
+   set (WITH_INTERNAL_POLY2TRI TRUE CACHE BOOL "Determines whether POLY2TRI should be built from internal copy")
++  set (WITH_INTERNAL_MESHOPTIMIZER TRUE CACHE BOOL "Determines whether MESHOPTIMIZER should be built from internal copy")
+
+   # try to configure and build POSTGRESQL support
+   set (WITH_POSTGRESQL TRUE CACHE BOOL "Determines whether POSTGRESQL support should be built")
+diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
+index 94c0e143001..777bd4bcb21 100644
+--- a/src/core/CMakeLists.txt
++++ b/src/core/CMakeLists.txt
+@@ -19,6 +19,18 @@ if (WITH_PDF4QT)
+   SUBDIRS(${CMAKE_SOURCE_DIR}/external/PDF4QT)
+ endif()
+
++if(WITH_INTERNAL_MESHOPTIMIZER)
++  add_library(STATIC meshoptimizer::meshoptimizer 
++    ${CMAKE_SOURCE_DIR}/external/meshOptimizer/simplifier.cpp
++  )
++
++  target_include_directories(meshoptimizer::meshoptimizer
++    ${CMAKE_SOURCE_DIR}/external/meshOptimizer
++  )
++else()
++  find_package(meshoptimizer CONFIG REQUIRED)
++endif()
++
+ set(QGIS_CORE_SRCS
+   ${CMAKE_SOURCE_DIR}/external/kdbush/include/kdbush.hpp
+
+@@ -30,8 +42,6 @@ set(QGIS_CORE_SRCS
+   ${CMAKE_SOURCE_DIR}/external/nmea/time.c
+   ${CMAKE_SOURCE_DIR}/external/nmea/tok.c
+
+-  ${CMAKE_SOURCE_DIR}/external/meshOptimizer/simplifier.cpp
+-
+   ${FLEX_QgsExpressionLexer_OUTPUTS}
+   ${BISON_QgsExpressionParser_OUTPUTS}
+   ${FLEX_QgsSqlStatementLexer_OUTPUTS}
+@@ -2375,7 +2385,6 @@ target_include_directories(qgis_core PUBLIC
+   ${CMAKE_SOURCE_DIR}/external/kdbush/include
+   ${CMAKE_SOURCE_DIR}/external/nmea
+   ${CMAKE_SOURCE_DIR}/external/rtree/include
+-  ${CMAKE_SOURCE_DIR}/external/meshOptimizer
+   ${CMAKE_SOURCE_DIR}/external/tinygltf
+ )
+
+@@ -2485,6 +2494,7 @@ target_link_libraries(qgis_core
+   ${ZLIB_LIBRARIES}
+   ${EXIV2_LIBRARY}
+   PROJ::proj
++  meshoptimizer::meshoptimizer
+ )
+
+ if(BUILD_WITH_QT6)

vcpkg/ports/qgis/portfile.cmake

@@ -18,6 +18,7 @@ vcpkg_from_github(
         include-qthread.patch
         processing.patch # Needed to avoid link issue with tinygltf (ATM embedded into QGIS) and _GEOSQueryCallback defined multiple times
         font_download.patch
+        meshoptimizer.patch # Unvendor meshoptimizer
 )
 
 file(REMOVE ${SOURCE_PATH}/cmake/FindGDAL.cmake)
@@ -38,6 +39,7 @@ list(APPEND QGIS_OPTIONS "-DWITH_QSPATIALITE:BOOL=OFF")
 list(APPEND QGIS_OPTIONS "-DWITH_PDAL:BOOL=OFF")
 list(APPEND QGIS_OPTIONS "-DWITH_DRACO:BOOL=ON")
 list(APPEND QGIS_OPTIONS "-DWITH_INTERNAL_POLY2TRI:BOOL=OFF")
+list(APPEND QGIS_OPTIONS "-DWITH_INTERNAL_MESHOPTIMIZER:BOOL=OFF")
 
 list(APPEND QGIS_OPTIONS "-DBISON_EXECUTABLE=${BISON}")
 list(APPEND QGIS_OPTIONS "-DFLEX_EXECUTABLE=${FLEX}")

vcpkg/ports/qgis/vcpkg.json

@@ -30,6 +30,7 @@
     },
     "libxml2",
     "libzip",
+    "meshoptimizer",
     "proj",
     "protobuf",
     {