Thank you I'll have a look at it. Anyway I think I managed to solve the problem, I think that the problem was that I had texture coordinates set only for TU 0 while the TangentSpaceGenerator requires coordinates for the normal map TU which I had not.
Regards. Alessandro On Fri, Oct 30, 2009 at 6:23 PM, Ümit Uzun <[email protected]> wrote: > Hi Alessandro, > > Try my bumpmapping sample from > http://www.fileden.com/files/2007/9/10/1423182/BumpMapping.rar > > Hope this helps. > > Ümit Uzun > > > 2009/10/30 alessandro terenzi <[email protected]> > >> I'm trying to use the TangentSpaceGenerator in order to apply a bump >> mapping shader, but I cannot manage it to work properly. Having looked also >> at the osgFX::BumpMapping effect, I used the visitor defined in BumpMapping >> in order to find all the geodes and apply TangentSpaceGenerator on them, but >> if I save the model to disk just before and after the generation has been >> applied, I notice that in the .osg the arrays supposed to contain normals, >> tangents and binormals are empty...here is the only part that is different >> among the two .osg: >> >> VertexAttribBinding 1 PER_VERTEX >> VertexAttribNormalize 1 FALSE >> VertexAttribArray 1 Vec4Array 0 >> { >> } >> VertexAttribBinding 6 PER_VERTEX >> VertexAttribNormalize 6 FALSE >> VertexAttribArray 6 Vec4Array 0 >> { >> } >> VertexAttribBinding 7 PER_VERTEX >> VertexAttribNormalize 7 FALSE >> VertexAttribArray 7 Vec4Array 0 >> { >> } >> >> 6 is supposed to be the TU of the tangent, 7 is for binormal attributes >> and 1 for the normal map textures. The model have textures coordinates set >> for TU 0 that is associated to the diffuse map. >> >> Maybe I'm missing some steps to setup properly everything... >> >> Thanks in advance. Kind regards. >> Alessandro >> >> _______________________________________________ >> 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
