- Qt 6.6
- Qt Quick 3D
- Qt Quick 3D Examples and Tutorials
- Qt Quick 3D - Volumetric Rendering Example
- Qt Quick 3D | Commercial or GPLv3

# Qt Quick 3D - Volumetric Rendering Example

     # Copyright (C) 2023 The Qt Company Ltd.
     # SPDX-License-Identifier: BSD-3-Clause

     cmake_minimum_required(VERSION 3.16)
     project(volumeraycaster LANGUAGES CXX)
     find_package(OpenMP)

     set(CMAKE_AUTOMOC ON)

     if(NOT DEFINED INSTALL_EXAMPLESDIR)
         set(INSTALL_EXAMPLESDIR "examples")
     endif()

     set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/quick3d/volumeraycaster")

     find_package(Qt6 REQUIRED COMPONENTS Core Gui Quick Quick3D)

     qt_add_executable(volumeraycaster
         main.cpp
         volumetexturedata.cpp
         volumetexturedata.h
         lineboxgeometry.cpp
         lineboxgeometry.h
     )

     set_target_properties(volumeraycaster PROPERTIES
         WIN32_EXECUTABLE TRUE
         MACOSX_BUNDLE TRUE
     )

     target_link_libraries(volumeraycaster PUBLIC
         Qt::Core
         Qt::Gui
         Qt::Quick
         Qt::Quick3D
     )

     if(OpenMP_CXX_FOUND)
         target_link_libraries(volumeraycaster PUBLIC
             OpenMP::OpenMP_CXX
         )
     endif()

     qt_add_qml_module(volumeraycaster
         URI VolumetricExample
         VERSION 1.0
         QML_FILES
             Main.qml
             ArcballController.qml
             OriginGizmo.qml
             Spinner.qml
         RESOURCES
             images/circle.png
             images/colormap-coolwarm.png
             images/colormap-gist_rainbow.png
             images/colormap-gnuplot.png
             images/colormap-plasma.png
             images/colormap-rainbow.png
             images/colormap-viridis.png
             alpha_blending.frag
             alpha_blending.vert
             SpacingMap.mjs
         RESOURCE_PREFIX "/qt/qml"
         IMPORTS
             QtQuick3D
     )

     install(TARGETS volumeraycaster
         RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
         BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
         LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
     )