How to use IES lights in YafaRay and Blender 3d for interior design

The upcoming Yafaray 0.1.2 will support IES light files (explained here). Allan Brito explains how to use them.

Allan writes:

An experimental version of the next version of YafaRay was released back at the beginning of September, and among several bug fixes and improvements, a few features were added. And of course, some of those features will help a lot artists interested on the use of Blender 3D and YafaRay for architectural visualization. One of the features that caught my attention was the introduction of IES light sources as a way to give physical accuracy to lights in YafaRay.

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• How to use IES lights in YafaRay and Blender 3d for interior design