I'm not sure what you mean by Property. Is that OpenSGese? We didn't
create any type of texture coordinate data structure. All we want is
a pointer to the texture coordinate data structure already contained
in our geometry. Our pointer to a 2-float data type (GeoTexCoordsPtr)
is wrong, and our pointer to a 3-float data type (GeoTexCoords3fPtr)
causes a crash.
However, we do create a secondary color data structure to copy the data into:
OSG::GeoColors3fPtr secondary_vert_colors = OSG::GeoColors3f::create();
OSG::beginEditCP(secondary_vert_colors);
for(int t=0;t<tex_coords->getSize();t++)
{
OSG::Vec3f temp = tex_coords->getValue(t);
secondary_vert_colors->addValue(OSG::Color3f(
temp[0] * 0.5f + 0.5f, temp[1] * 0.5f + 0.5f, temp[2] *
0.5f + 0.5f));
//DEBUG_OUT(DLVL_STATUS) << "secondary " << t << ": " <<
secondary_vert_colors->getValue(t)
// << std::endl << DEBUG_FLUSH;
}
OSG::endEditCP(secondary_vert_colors);
geom->setSecondaryColors(secondary_vert_colors);
--
Terry Welsh - mogumbo 'at' gmail.com
www.reallyslick.com | www.infiscape.com | www.vrsource.org
On 7/14/05, Dirk Reiners <[EMAIL PROTECTED]> wrote:
>
> Hi Terry,
>
> On Thu, 2005-07-14 at 10:06 -0500, Terry Welsh wrote:
> > Trying to copy binormals so that we can put them into the secondary
> > color field, we do this:
> >
> > OSG::calcVertexTangents(geom);
> > OSG::GeoTexCoordsPtr& tex_coords = geom->getTexCoords2(); // get binormals
> > OSG::Vec3f temp = tex_coords->getValue(index);
> >
> > Unfortunately, this only copies the x and y components of the
> > binormals, but not the z component.
>
> gaah! That was too obvious. :(
>
> > If I print out
> > tex_coords->getValue(index) I only see 2 floats instead of 3.
> >
> > I tried this as well:
> > OSG::GeoTexCoords3fPtr& tex_coords =
> > OSG::GeoTexCoords3fPtr::dcast(geom->getTexCoords2());
> > But it crashes when I try to access it with tex_coords->getSize();
> >
> > Any suggestions?
>
> How did you create the Property for the TexCoords? For 3D Texcoords you
> need to create a GeoTexCoords3fPtr and fill it using the Field
> interface:
>
> GeoTexCoords3fPtr tc = GeoTexCoords3f::create();
> tc->getField()->push_back(Vec3f(x,y,z));
>
> Hope it helps
>
> Dirk
>
>
>
>
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