In this tutorial, I won't go into the technical and physical backgrounds of High Dynamic Range Image. Instead, I'll present you with a basic instruction about the photography of the images needed to produce HDRI's, the way to go about in Photoshop (which in CS2 has a feature incorporated that will produce a so-called Radiance document with little effort) and how to use the HDRI in 3D (I use Cinema4D but other software will differ only slightly)