Using Picturenaught to resize the 15,000 pixel wide HDR's;

• Click "File, Open".
• Broswe to HDR, double-click it to open it.
• After it is loaded, click "Image, Resize Image".
• I myself, didn't change any of the various settings.
• Except for the "Width", which I typed in "2000", then clicked "OK"
• Then click, "File, Save As" and then I gave it a different name. (example "02-04_Garage.hdr" was renamed to "02-04_Garage_2K.hdr"

That's it, then just use the smaller HDR, it will work just great! (and the smaller version will use WAY less memory) In my experience, a 300mb HDR went down to 6mb. After you get a scene exactly where you want it, you can always THEN swap in a larger version of the same HDR (but, I myself, normally do not) I almost always use the an HDR that is just 2,000 or 4,000 pixels wide.

AS

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