Re: OpenGL Renderers Reorganization

[Roger H. <rog...@mi...>]

On 28 Jun, 2007, at 22:39, Jose' Cruanyes wrote:

> We're ready to go on with the Hiddenline renderers, but I'm not sure
> that poluting the Quesa space is the way to go, also because we want
> to create several different renderers.
>
> so we want to detach the renderers from quesa.

Sounds good.

>
> there are several options,
> one Quick n dirty  that is use several #defines to turn on and off
> the renderers at compile time,
> and the other is to make all the renderers (minus one?) plug-ins.

If you are not talking about source separation, there's not much  
wrong with what I am doing now, which is to only allow the user to  
select the ones the application supports, either grey them out or  
what I do, not add them to the appropriate menu/pop-up menu.

Of course plug-in renderers give better modularity.


>
> the problem with the second approach is that the Open GL renderers
> (that forms the base class for all others) uses private View methods
> and data, so we have to make them public.

How many methods are we talking about?

Would they be of any use to other renderers?

Could they be implemented as a library which was hard linked?

>
> the third approach is to leave the OpenGL Hiddenline renderer (only
> one) on by default,


You mean the original 'Interactive' renderer is not going to be the  
default?

A traditional hidden line renderer would not be much good as a default.

>
> Also, What about make the cartoon renderer a illumination style like
> Phong or Lambert?

Nice lateral thinking. Yes I like it.


> What do you think?
>
> Pax et Bonum