SOURCES += main.cpp lighting.cpp
 HEADERS += lighting.h
 # install
 target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/effects/lighting
 sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS lighting.pro
 sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/effects/lighting
 INSTALLS += target sources
 QT += widgets