Hello Josef,
this one slipped through the cracks I'm afraid, but I finally got to
take a look at it and fixed it (hopefully ;) ).
For those interested: The problem was that switching the filtering mode
to GL_LINEAR or GL_NEAREST was optimized to not cause a reinit of the
OpenGL texture object but only a refresh. However the refresh case in
the TextureChunk::handleTexture did not reapply the filter settings.
Thanks for the bug report and apologies for the delayed fix,
Carsten
On Wed, 2007-05-09 at 18:58 +0200, Josef Grunig wrote:
> Hi all,
>
> Using the textureChunk setMinFilter I've noticed a strange behaviour.
> Start value is GL_LINEAR; when selecting GL_NEAREST with correct field
> mask
>
> beginEditCP (tex, osg::TextureChunk::MinFilterFieldMask);
> tex->setMinFilter(GL_NEAREST);
> endEditCP (tex, osg::TextureChunk::MinFilterFieldMask);
>
> and redrawing, the texture filtering gets not updated. As a workaround
> I have to add a mask of another field, like this:
>
> beginEditCP (tex, osg::TextureChunk::MinFilterFieldMask |
> osg::TextureChunk::WrapSFieldMask);
> tex->setMinFilter(GL_NEAREST);
> endEditCP (tex, osg::TextureChunk::MinFilterFieldMask |
> osg::TextureChunk::WrapSFieldMask);
>
>
> if start value is GL_NEAREST and I set GL_LINEAR, it gets correctly updated.
>
> You can reproduce it with VRed.
>
> Any idea of what is happening?
>
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