Re: [Opensg-users] texture tiling

[Frederik D. <fre...@gm...>]

Hi Carsten,

We managed to tile our textures using the code you supplied. Thanks alot for
another quick response.

Frederik

On 29/12/06, Carsten Neumann <car...@gm...> wrote:
>
>         Hi Frederik,
>
> Frederik Didden wrote:
> > Hi again,
> >
> > Do you mind putting us in the right direction concerning setting the
> > texture
> > coordinates?
>
> oh, sorry for not mentioning this (BTW for a better overview of these
> things there is a tutorial here:
> http://www.opensg.org/doc-1.6.0/TutorialIntroduction.html - the "Related
> Pages" link at the top leads to a chapter overview)
>
> The following is untested, but hopefully gets you started, otherwise
> please ask if something is unclear/not working.
>
> // your geometry
>
> GeometryPtr geo;
>
> // get the texture coordinates property, the
> // dcast will only succeed if you are actually using
> // Vec2f texture coordinates
>
> GeoTexCoords2fPtr texCoords =
> GeoTexCoords2fPtr::dcast(geo->getTexCoords());
>
> if(texCoords == NullFC)
> {
>         std::cerr << "error";
>         return;
> }
>
> // change texture coordinates (for a single quad)
> // will repeat the texture twice in s
> // direction once in t direction
>
> beginEditCP(texCoords, GeoTexCoords2f::GeoPropDataFieldMask);
> texCoords->setValue(Vec2f(0.0, 0.0), 0));
> texCoords->setValue(Vec2f(2.0, 0.0), 1));
> texCoords->setValue(Vec2f(2.0, 1.0), 2));
> texCoords->setValue(Vec2f(0.0, 1.0), 3));
> endEditCP(texCoords, GeoTexCoords2f::GeoPropDataFieldMask);
>
>         Hope it helps,
>                 Carsten
>
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