[Gtkradiant] problem with shader

[Tim Aerdts]

Hi Dirk,

I tried this and got the following result :)

textures/test/red
{
    {
    map $whiteimage
    rgbGen const ( 1.0 0.0 0.0 )
    }
    {
    map $lightmap
    rgbGen identity
    blendFunc filter
    }
}

With this result
http://fragger.quakedev.com/other/screens/xperiment00219.jpg

Hope it helps, which engine are you using?

Greetings,
Fragger

On Wed, Apr 30, 2008 at 11:46 AM, Dirk <noisyb at gmx.net> wrote:

> Forest Hale wrote:
> > Dirk wrote:
> >> i want a shader that does just make a red surface
> >>
> >> textures/test/red
> >> {
> >>    {
> >>    map $whiteimage
> >>    rgbGen const ( 1.0 0.0 0.0 )
> >>    blendFunc add
> >>    }
> >>    {
> >>    map $lightmap
> >>    rgbGen identity
> >>    blendFunc filter
> >>    }
> >> }
> >>
> >> ...but why is it transparent?
> >>
> >> Can anyone help? or point me to a place where someone can help? I have
> >> had a look at the Q3A shader manual.. but this is the best I can come
> up
> >> with after having read it...
> >
> > Your first pass has a blendFunc, therefore it is transparent.
> >
>
> i need that blendfunc in the first pass or the surface will be just
> white... or should i make 3 "passes"(?) and add the rgbGen in the 2nd?
> how would/should that look like (syntax-wise)?
>
> i'm a total shader noob and everything above is the result of try and
> error and barely understanding the cryptic shader manual... i figured in
> the meantime that blendfunc is a GL function and that 'add' and 'filter'
> are just synonyms for sfilter and dfilter stuff... and that's pretty
> much it... shader files seem to be some script language to program the
> GPU using GL... :D
>
> someone please show me how this shader has to look like to do things
> right... i want a single, nontransparent color on the surface...
>
> (and maybe how to do a single rgba color on a surface using a shader...
> but i might be able to figure that out myself then...)
>
> Thank you!
>
>
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-- 
Xperiment
www.xperimentgame.com
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