I found this free software to make IBL to replicate real lighting situations.
Description from the official homepage:
The 3 basic ingredients of a smart IBL setup are:
a super high res panorama as camera background
a high res HDR as specular component for reflection
a blurred low res HDR as diffuse environment lighting
The idea is to put all these three images together in a folder, and link them together with a description file. From that point on they are siblings. Together they form a complete lighting set. We also throw in a sunlight, that matches in color, direction and intensity.
Smart IBL 1.0.3
Free HDRI images
Happy New Year All !