foc
Returns focal valiew of the current view.
foc(f)
Changes this value.
Note: command interaction
initializes focal to 0.8.
foc light
foc light(id)
Returns focal of light id.
foc light(id)=f
Changes this focal (between 0 and PI).
foc view
foc view(id)
Returns the focale of view id.
foc view(id)=f
Changes this focal.
See also: