- RenderPanel::renderSceneIfChanged() method has been renamed to RenderPanel::renderIfNeeded().
- Previous method calls a new Viewframe::renderIfNeeded() method.
- Viewport class now handles mouse wheel events for moving the current camera forward or backwards.
- Added a new Viewport::forceRender() slot. This method is invoked when changing the current projection mode or the current camera view.
- The w coordinate of Camera's inner vectors has been changed to 0.