Re: [Gzz] 28th-29th (jvk)

[Tuomas Lukka]

On Wed, Oct 30, 2002 at 12:34:05PM +0200, Janne Kujala wrote:
> On Wed, Oct 30, 2002 at 11:19:41AM +0200, Tuomas Lukka wrote:
> > > Today: thinking about a new irregu renderable and
> > >        a table of all the different profiles
> >
> > Do include NV30.
> 
> I have to look at the specs first.
> It would probably be very similar to the multitex profile,
> only with more texture units.

No, one texture unit would be enough! 

Basically, the spec is: do anything you want, except branching
and looping.

> > > - Need a way to pass a polygon structure to the renderable.
> >
> > Can we do that after 5th?
> 
> Yes, but I need some way to make the irregu3 demo not thrash.
> After adding the new profiles, linux sometimes seems to kill the
> java process before garbage collection finishes.
> 
> It seems that the problem is string concatenations like
> 
>     for i in range(0,4):
>         code += """
>         %s %s
>         TexCoord %s
>         """ % (("Color", "SecondaryColorEXT")[using_secondary_color],
>                js(cols[i]), js(texcoords[0][i]))
> 
>         for u in range(1,len(texcoords)):
>             code += """
>             MultiTexCoord TEXTURE%s %s
>             """ % (u, js(texcoords[u][i]))
> 
>         code += """
>         Vertex %s
>         """ % js(vertices[i])
> 
> 
> If I add that piece of code many times, the thrashing begins
> much sooner.
> 
> Is there a way to construct the strings more efficiently?

Yes, there is. Use an array of strings:

        code = [],
        code += ["""...
        """]
        and finally
        code = "".join(code)

much more efficient.

        Tuomas