Suggestion for DDoc - share parameter descriptions

[Lionello Lunesu]

nick wrote:
> I am not sure about the best way to do this, but some sort of
> "ditto"-like feature may be good.
> 
> The flip side of the argument is that you should probably have a vec3
> class/template for handling this sort of situation. This kind of logic
> would apply to having pretty much any number of similar parameters.
> The logic being: If parameters belong together, then group them together
> and document the group.
> 

But at some point you'll have to call a function taking r,g,b.. And 
document it :)

L.