Rob hi
> The concept of soft
> versus harsh light has been around since at least Caravaggio
> (1571-1610). This is not a term specific to computer
> graphics. It is a general term referring to scene lighting
> and we use it in its ordinary sense.
Just because a term has been around for a long time and is thought to be
well-understood in an "ordinary sense", does not make it suitable for a
technical specification - otherwise we'd be okay describing things
shapes as "good", "graceful", "beautiful" etc.
- Alex.