Hi Vincent, I'm not sure how other people could help you here - its very much a question that doesn't have enough information about the problem to know what an appropriate answer might be.
Texture coordinate generation in OpenGL is an awkward topic, and the best I can recommend is that you dive into books or online texts that discuss it. The OSG for the most part basically just does a direct pass through of settings you make on OSG objects when pass the values to OpenGL so OpenGL docs should serve you well. Robert. On Tue, Apr 29, 2008 at 9:51 AM, Vincent Bourdier <[EMAIL PROTECTED]> wrote: > Hi, > > With some new tests, I've something different as you can see in the attached > file > > I use this code > > > > > osg::TextureCubeMap* texcube = new osg::TextureCubeMap(); > > > > osg::Image* white = createWhiteImage(_x,_y); > > > > texcube->setImage(osg::TextureCubeMap::POSITIVE_X, white); > > texcube->setImage(osg::TextureCubeMap::NEGATIVE_X, white); > > texcube->setImage(osg::TextureCubeMap::POSITIVE_Y, white); > > texcube->setImage(osg::TextureCubeMap::NEGATIVE_Y, white); > > > > texcube->setImage(osg::TextureCubeMap::POSITIVE_Z, _texGrad.get()); > > texcube->setImage(osg::TextureCubeMap::NEGATIVE_Z, white); > > > > osg::TexGen *tg = new osg::TexGen; > > tg->setMode(osg::TexGen::OBJECT_LINEAR); > > > > geode->getOrCreateStateSet()->setTextureAttributeAndModes(0, tg, > osg::StateAttribute::OVERRIDE | osg::StateAttribute::ON); > > > > > > geode->getOrCreateStateSet()->setTextureAttributeAndModes(0, texcube, > osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE); > > > > Any idea of how to obtain a good mapping ? > > In the picture we can see 6 face or the TextureCubeMap, but how to put it a > the good size ? > Have you already used TextureCubeMap ? or how can you did the mapping on a > "face" of a geode ? > > Thanks a lot, > > Regard. > Vincent. > > 2008/4/25 Vincent Bourdier <[EMAIL PROTECTED]>: > > > > > Hi all, > > > > Attempting to put a texture on a geode, (a texture computed in real time) > I've used osg::TextureCubeMap, which look good to do this with my data... > but I have problems with the correct mapping: > > > > In the attached file you can see > > 1. the texture > > 2. the node with this texture > > > > As you can see, it looks like nothing ... > > > > I use this code to obtain this result : > > > > > > > > > osg::TextureCubeMap* texcube = new osg::TextureCubeMap(); > > > texcube->setImage(osg::TextureCubeMap::POSITIVE_X, _texGrad.get()); > > > texcube->setImage(osg::TextureCubeMap::NEGATIVE_X, _texGrad.get()); > > > texcube->setImage(osg::TextureCubeMap::POSITIVE_Y, _texGrad.get()); > > > texcube->setImage(osg::TextureCubeMap::NEGATIVE_Y, _texGrad.get()); > > > texcube->setImage(osg::TextureCubeMap::POSITIVE_Z, _texGrad.get()); > > > texcube->setImage(osg::TextureCubeMap::NEGATIVE_Z, _texGrad.get()); > > > > > > > > > osg::TexMat* texmat = new osg::TexMat; > > > texmat->setScaleByTextureRectangleSize(true); > > > geode->getOrCreateStateSet()->setTextureAttributeAndModes(0, texmat, > osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE); > > > > > > geode->getOrCreateStateSet()->setTextureAttributeAndModes(0, > texcube, osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE); > > > > > > > Wrapping seems to do nothing... TextureRectangle depends of the geometry > vertices ans edges... > > > > If you have any idea, I'll be happy to hear you. > > > > Thanks. > > > > Regards, > > Vincent. > > > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
