This final part of the pills scene series talks about linear workflow - in other words how to ensure that your images are correctly adjusted for gamma.

A project file is available at
sites.google.com/site/pqhoudinitutorial/

If you want a nice clear written explanation of linear workflow look at:
softimage.wiki.softimage.com/index.php?title=Gamma%2C_Linear_Color_Space_and_HDR

This written for XSI but much of it applies to Houdini

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