Re: [gzz] Abstract Colorable Vob

[Benja Fallenstein]

Tuomas Lukka wrote:
> > May we want to do this: The prototype vob has a list of solid colors, 
> > but we want to have *different* ones on the final vob?
> >
> > May we want to do this: The prototype vob has a list of solid colors, 
> > and we want to have *those and additional others* on the final vob?
> >
> > I do not see a use case for the first, but can imagine one for the 
> > second. 
>
> Umm, actually I do see: if you want to change the default background
> color, i.e. the one without any cursor/clone/... colors. That's a color
> that needs to be replaced.

This is what we have been calling the "background" color, not a "solid" 
color that I was refering to...

> > Let's say we have lots of clones, shown as yellow, but few 
> > accursed cells, shown as blue, in a scene. Now we could write:
> >
> >    if(isClone)
> >        vob = clonePrototype; // yellow solid
> >    else
> >        vob = normalPrototype; // no solids
> >
> >    if(isAccursed)
> >        vob = vob.cloneColorAdded(Color.blue);
> >
> > I couldn't use cloneColorReplaced() now without overwriting the color 
> > from the prototype.
>
>
> I'd rather see this as 
>
>         if(isClone) {
>                 replaceColors = false;
>                 vob = cloneProto;
>         } else {
>                 replaceColors = true;
>                 vob = normalProto;
>         }
>
>         ...

Could you write this out? I don't understand it.

> > I see where you going, but I'm not yet sure that cloneColorReplaced() is 
> > really a good idea-- so far, it seems to me that even with prototypes, 
> > cloneColorAdded() works better.
> >
> > You said that you think cloneColorAdded() is like addToX(float), but I 
> > think that this is different because a) you know what 'x' you start with 
> > ('no colors'-- or else you have strange behavior anyway, for the nodes 
> > rendered without changing the colors), and b) the usual pattern actually 
> > *does* make you 'add' things (if(a) add(A); if(b) add(B); etc.).
>
> What color is the vob if there's no solid colors?

The background color.

> This would work if there were another attribute for the color
> if there's no solid colors...

If there isn't, what color is the vob if there are no solid colors? :-)

- Benja