Revision control
++ QT += quick quick3d-private
++
++ target.path = $$[QT_INSTALL_EXAMPLES]/quick3d/principledmaterial
++ INSTALLS += target
++
++ SOURCES += \
++ main.cpp
++
++ RESOURCES += \
++ qml.qrc \
++ materials.qrc
++
++ OTHER_FILES += \
++ doc/src/*.*