Hi Robert and osg-users,
I have added a TexGenNode but i´m a newbie in OSG and i dont know why it
cant works. This is the code that i have added.When I execute the osgviewer
with this code, it only shows the terrain model and without lighting.
osg::Group* root = new osg::Group();
osg::ref_ptr<osg::Node> loadedModel =
osgDB::readNodeFile("C:\\osg\\Terrain.osg");
osg::Image* loadedImage = osgDB::readImageFile( "C:\\OSG\\overlay.png" );
osg::Texture2D* texture = new osg::Texture2D(loadedImage);
osg::StateSet* stateset=new osg::StateSet();
stateset->setTextureAttributeAndModes(1,texture, osg::StateAttribute::ON);
stateset->setTextureMode(1, GL_TEXTURE_2D,osg::StateAttribute::ON);
osg::TexGen* texgen = new osg::TexGen;
texgen->setMode(osg::TexGen::OBJECT_LINEAR);
texgen->setPlane(osg::TexGen::R, osg::Plane(0.0f,0.0f,0.0f,0.2f));
osg::TexGenNode* texgenNode = new osg::TexGenNode;
texgenNode->getTexGen()->setMode(osg::TexGen::OBJECT_LINEAR);
texgenNode->setTextureUnit(1);
texgenNode->setTexGen(texgen);
texgenNode->setStateSet(stateset);
texgenNode->addChild(loadedModel.get());
root->addChild(texgenNode);
Regards,
Pablo
2008/8/26 Robert Osfield <[EMAIL PROTECTED]>
> Hi Pablo,
>
> What is missing from your code is the generate of texture coordinates.
> The way to do this is to use a TexGenNode to positioning the mapping
> between vertex position to texture coordinates.
>
> Robert.
>
> On Tue, Aug 26, 2008 at 1:54 PM, Pablo Perez <[EMAIL PROTECTED]> wrote:
> > This is the part of osgviewer where I try to load the new texture:
> >
> > osg::Group* root = new osg::Group();
> >
> > osg::ref_ptr<osg::Node> loadedModel =
> > osgDB::readNodeFile("C:\\osg\\Terrain.ive");
> > osg::Image* loadedImage = osgDB::readImageFile( "C:\\OSG\\overlay.png" );
> > osg::Texture2D* texture = new osg::Texture2D(loadedImage);
> >
> loadedModel->getOrCreateStateSet()->setTextureAttributeAndModes(1,texture,
> > osg::StateAttribute::ON);
> > loadedModel->getOrCreateStateSet()->setTextureMode(1,
> > GL_TEXTURE_2D,osg::StateAttribute::ON);
> >
> > root->addChild(loadedModel.get());
> >
> > 2008/8/26 Pablo Perez <[EMAIL PROTECTED]>
> >>
> >> Hi Robert,
> >>
> >> I´m trying to overlay another texture ontop of the existing tiles. I´m
> >> working
> >> in a GIS and I want to add layers like highways,.... from a WMS.
> >>
> >> Thanks,
> >>
> >> Pablo
> >>
> >>
> >> 2008/8/26 Robert Osfield <[EMAIL PROTECTED]>
> >>>
> >>> Hi Pablo,
> >>>
> >>> >From your email I can't quite work out what you are trying to achieve.
> >>> Is that you want to replace the existing texture present in each
> >>> tile that is loaded, or overlay another texture ontop of the existing
> >>> tiles?
> >>>
> >>> Robert.
> >>>
> >>> On Tue, Aug 26, 2008 at 12:18 AM, Pablo Perez <[EMAIL PROTECTED]>
> wrote:
> >>> > Hi,
> >>> >
> >>> > I have built a PageLOD terrain database with osgdem and now I want to
> >>> > modify
> >>> > osgviewer to add diferents images for each terrain tile and LOD. I
> try
> >>> > to
> >>> > add a texture2D to the root->getChild Node but only can see the
> >>> > texture2D in
> >>> > the areas where there aren´t terrain images.
> >>> >
> >>> > _______________________________________________
> >>> > osg-users mailing list
> >>> > [email protected]
> >>> >
> >>> >
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
> >>> >
> >>> >
> >>> _______________________________________________
> >>> osg-users mailing list
> >>> [email protected]
> >>>
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
> >>
> >
> >
> > _______________________________________________
> > osg-users mailing list
> > [email protected]
> >
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
> >
> >
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