[osg-users] Using multiples texture for a geometry

[Robert Osfield]

Hi Florian,

You don't mention how you are setting up your geometry, so don't know if
you made a mistake here.  You will need texture coordinate arrays for both
the 0 and 1 texture unit array slots in osg::Geometry.

Robert

Robert.

On 2 May 2016 at 06:13, Florian GOLESTIN <florian.golestin at gmail.com> wrote:

> Hi everyone,
>
> I've a Geometry (which is a wall) and I want to put two textures on it. A
> part with a first texture and a second part with a  second texture.
>
> I wrote the code above :
>
> Code:
>
>     //Texture 1
>     geom->setTexCoordArray(0, level->texcoords.get());
>     {
>       osg::ref_ptr<osg::Texture2D> texture = new osg::Texture2D;
>       osg::ref_ptr<osg::Image> image =
> osgDB::readImageFile("media/textures/stone_3_2048x2048.jpg");
>       texture->setImage(image);
>       texture->setUnRefImageDataAfterApply(true);
>       level->getOrCreateStateSet()->setTextureAttributeAndModes(0,
> texture);
>     }
>     //Texture 2
>     geom->setTexCoordArray(1, level->texcoords2.get());
>     {
>       osg::ref_ptr<osg::Texture2D> texture = new osg::Texture2D;
>       osg::ref_ptr<osg::Image> image =
> osgDB::readImageFile("media/textures/Metal_seamless2_ch16.jpg");
>       texture->setImage(image);
>       texture->setUnRefImageDataAfterApply(true);
>       level->getOrCreateStateSet()->setTextureAttributeAndModes(1,
> texture);
>     }
>
>
>
>
> However the wall appears completely black (no textures).
>
> If I comment the "Texture 2" block, the part of the wall with the first
> texture is displayed correctly. And if I comment the "Texture 1" block the
> part of the wall with the second texture is displayed correctly.
>
> I am missing something?
>
> Thank you,
> Florian
>
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=67039#67039
>
>
>
>
>
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