This is a trackball controller for Qt3D from https://codereview.qt-project.org/#/c/194009/6. It was never officially merged into Qt, but probably is still licensed under L-GPL.
rayform / qtrackballcameracontroller Goto Github PK
View Code? Open in Web Editor NEWTrackball Camera Controller for use with Qt3D
License: GNU Lesser General Public License v2.1