Re: [Gnu3dkit-dev] Strings and parameter lists

[Philippe C . D . Robert]

Hi,

I have now checked in an *initial* version of the rendering API into 
the CVS (see G3DRenderer.h). Note that the naming is not final and I am 
not even sure if all (needed) Ri* functions are covered, but you get 
the idea...:-)

On Friday, February 14, 2003, at 10:13  Uhr, Gerard Iglesias wrote:
> Philippe C.D. Robert wrote:
> > Well, you could do that, but the beauty IMHO would be to have an API 
> > which permits you to render a RIB directly. But I am not sure we want 
> > this at all because first, the 3DKit is a scene graph and should thus 
> > work this way and not directly via renderer bypassing the scene graph 
> > and second, we would then have to make sure to at least understand 
> > everything which is in a RIB.
>
> Sure that it would not be a simple task, RIB file can contains very 
> rich things, like animation, and I am not sure that 3DKit would 
> manipulate animation natively for example.

I don't think so. Currently I do not even support it in the interface.

> But if we can parse rib file to get tree of geometry node il will be a 
> good start :)

:-)

> > But having a render action which does produce a RIB would be cool as 
> > you could then process this further using other, already existing 
> > tools. As an example you could simply pipe the 3DKit's output into 
> > other CLI renderers' input.
>
> Sure, and I think that it would be not so difficult to do so, a lot 
> simpler than parsing a rib file.

Yup, and it would be a start!

> I am exploring PCCTS/ANTLR to parse the rib file format, seems to be 
> very interesting to use it, any experience ?

I am more in favour of lex/yacc, but from what I have heard ANTLR is a 
good product as well.

-Phil
--
Philippe C.D. Robert
http://www.nice.ch/~phip