There are a couple of third party toolboxes that have been developed to make use of the U3D PDF-style.
MATLAB Mesh to PDF with 3D Interactive Object: http://www.mathworks.com/matlabcentral/fileexchange/25383-matlab-mesh-to-pdf-with-3d-interactive-object
Export Figure to 3D Interactive PDF: http://www.mathworks.com/matlabcentral/fileexchange/37640-export-figure-to-3d-interactive-pdf
Note that MathWorks does not guarantee or warrant the use or content of these third-party submissions. Any questions, issues, or complaints should be directed to the contributing author.
