I have am collecting quite the collection of HDRI images from various sources and I need an effecient way to quickly preview them or view them as thumbnails. Is there a good HDRI previewer out there? I have adobe bridge which can preview .hdr files but it can not read .exr or .hdp files etc.
Yes - KeyShot, and a Mac.
XnView is a good one (for HDR) and it's free too! ;D
http://www.xnview.com/en/index.html (http://www.xnview.com/en/index.html)
A good way to do it is to generate JPEG as thumbnails with a PhotoShop batch. Especially if you have high definition HDRIs, previewing them every time is a little annoying. I've seen a way to modify Windows Explorer so it can generate thumbnails for HDRI images but I won't recommended for the same reason I mentioned.