Hi Paul, thanks for your help. I have 16 vertices. How has the array to look like if I want to assign only 4 vertices to my texture and the other vertices not ?
+---+---+---+ | T | | | +---+---+---+ | | | | +---+---+---+ | | | | +---+---+---+ My array looks like this and of course, it produces not what I want: osg::Vec2Array* texcoords = new osg::Vec2Array(16); (*texcoords)[0].set(0,0); (*texcoords)[1].set(1,0); (*texcoords)[2].set(0,0); (*texcoords)[3].set(0,0); (*texcoords)[4].set(0,1); (*texcoords)[5].set(1,1); (*texcoords)[6].set(0,0); (*texcoords)[7].set(0,0); (*texcoords)[8].set(0,0); (*texcoords)[9].set(0,0); (*texcoords)[10].set(0,0); (*texcoords)[11].set(0,0); (*texcoords)[12].set(0,0); (*texcoords)[13].set(0,0); (*texcoords)[14].set(0,0); (*texcoords)[15].set(0,0); But how can I reach this goal, that only the upper left corner got its texture? Thanks again. Michael > The short answer is that it looks the same. :-) OSG assigns each texture > coordinate in your array to each vertex in your array. So if you have four > vertices, then it looks like your example below, but if you have 16 vertices > then you need 16 texture coordinates in your texture coordinate array. > > Hope that helps, > -Paul > > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On Behalf Of > > Michael Aulhorn > > Sent: Tuesday, February 13, 2007 9:42 AM > > To: osg users > > Subject: Re: [osg-users] multiple textures and one geometry > > > > Hi Robert, > > > > thanks for your help. My Problem is, I don't know exactly how > > the coord. array hast to look like. To apply one texture to > > the hole geometry it looks this way: > > > > osg::Vec2Array* texcoords = new osg::Vec2Array(4); > > (*texcoords)[0].set(0.0f,0.0f); > > (*texcoords)[1].set(1.0f,0.0f); > > (*texcoords)[2].set(1.0f,1.0f); > > (*texcoords)[3].set(0.0f,1.00f); > > > > How does it look like if I wan't to use a texture for > > specific vertices ? > > > > Michael _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
