William Tracy wrote:

> 
> It can create realistic shadows, reflections, and global 
> illumination.
> 

These are light effects not photo effects.  You do not need a photograph 
to perceive shadows, reflections and global illumination.

Meanwhile, these and other phenomena as recorded by a camera are still 
only a partial "realism"  A photo is just a particular recording of 
reality, a partial slice if you will.

It is quite valid to both reject photolike effects as the "gold 
standard" for realism and at the same time utilize the tools provided in 
a raytracer to create a personal and alternative sense of what's real.

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