[Gnuplot-info] surface 3d plot

[cédric o. <ced...@gm...>]

Hello,

I would like to plot a surface (x,y,z) with a uniform color but also with
light/shadow effects. Also, it is possible to add translucidency as in other
softwares.

I have seen a trick to lighten locally the surface but it does not
correspond exactly to what I would like.

Thanks for any help,

Cédric