Silverlight / Deepzoom weird flashing rectangle bug

Question

Hi there, I just launched my website - blackspike.com - under the 3D tab on the homepage I've put a deepzoom collection in there. A friend has noticed that if you pan down and to the right there's a weird psycadelic flashing rectangle.

I've tried recreating the collection, and reuploaded and there is nothing in the composer project to suggest anything out of the ordinary.

Has anyone seen a bug like this before, or have any ideas how to fix?

Thanks in advance!

Answer 1

Did you use the deep zoom composer to create the image?

It looks like the kind of thing you get when floating point calculated results are rounded to integers for pixel placement. To avoid such artefacts the deep zoom composer sets the tile overlap to 1 which minimises this effect, although doesn't necessarily eliminate it.