void ViewportArrayApp::mouseWheel( MouseEvent event )
{
	int viewport = getViewportAt( mViewports, event.getPos() );
	if( viewport != -1 ) mCameraUi.setCamera( &mCameras[viewport] );
	mCameraUi.mouseWheel( event );
}
void TextParticlesApp::mouseWheel( MouseEvent event )
{
	mCamUi.mouseWheel( event );
}