matrix2.map(from2, to2);
GraphicsMode graph = new GraphicsMode(QDConstants.transparent, key);
// make pixels with key color transparent, so back movie shows through
VisualMediaHandler handlerFore =
(VisualMediaHandler)trackFore.getMedia().getHandler();
handlerFore.setGraphicsMode(graph);
trackBack.setMatrix(matrix2);
trackFore.setMatrix(matrix1);
trackFore.setLayer(-1);
} // try
catch (QTException qte)