[Nuke-dev] Adding a transform to Geometry on read

[Eric Larsen]

Hello,

  I'm trying to add a transformation matrix as an attribute onto a
primitive (a locator) I create in a SourceGeo node.   I'm trying to be able
to access the world space transform for the locator so I can access it in a
python callback.   Something like this

geoNode = nuke.selectedNode()
geometryList = geoNode['geo_select'].getGeometry()
for geom in geometryList:
    print geom.transform()


Is setting an attribute on the object in the SourceGeo node the correct way
to populate that?  Here*'s *the code from the SourceGeo implementation

        Attribute* matrix = out.writable_attribute(obj, Group_Object,
"transform", MATRIX4_ATTRIB);
        assert(matrix != NULL);
        if (matrix != NULL) {
            matrix->matrix4(0).makeIdentity();
            matrix->matrix4(0).translate(123.f, 456.f);
        }

I've also tried setting the attribute for the Group_Points and
Group_Primitives but the transform from the geoInfo is always identity.

   Thanks,

          Eric

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