Brian took me through various stages of HDRI Lighting which included of capturing all the exposure details pertinent to a shot filmed using a chrome ball and a camera on a tripod.First capturing images from three angles with a camera mounted on a tripod and then clicking on pics with a chrome ball kept at the center of the shot scene.The exposures of each shots needed to be adjusted from low to high on each of the three pictures photographed.After that using Photoshop to merge those captured photographs to singe merged HDRI images.Then using HDRI shop to unwrap those chrome ball shots to flat images and then again using Photoshop to create one single HDRI shot which can be used as an environmental map for controlling exposure on 3D elements in a scene.
I got hold of some free HDRI chrome ball samples and tried out some settings in 3DS MAX and the results were quite good.Scene included a camera circling around a drop of water in air whcih was lit by a light and with environmental map as the HDRI Image which i processed using HDRShop and Photoshop
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