Hi. I am a 75 year old s/w engineer and VR photographer in Philadelphia, PA. I am still actively developing software for spherical and 3D photography. A Hugin contributor and author of the Panini series of reprojection programs. Currently working on stitching systems for spherical 3D content, including video. Excited by prospects for scanner-based 3D photography, delighted to have a Structure for iPad Air. See my panoramas at tksharpless.net and 360Cities/tksharpless.