I am trying to create a seamless 3D visualisation in ArcScene 10.1. I have a TIN surface created from 1m contour lines. I have 4 tiles of ortho imagery I would like to drape over the surface. So far I have been using the Base Heights tab in the properties dialog box on the images to "float on a custom surface" so that the imagery takes on the 3D shape of the TIN surface.
I have tried increasing the layer offset to see if I could raise the images above any noise or elevation irregularities but it doesn't make a difference, I still get the seam gaps.
When displayed flat (not floating on custom surface) the images fit together perfectly with no gaps.
How can I display this imagery in 3D using ArcScene or other software so that it appears seamless and without gaps?