You can import T-Spine surfaces from SF3D files directly into Alias. When you import T-Splines, the models get converted to Alias subdivision objects. Creases in the T-Spline model are preserved in the resulting subdivision object. Symmetry that has been added to the T-Spline surface in SpeedForm is removed and is not transferred to the Alias subdivision object.
NURBS surfaces created in SpeedForm using the Detailing workspace are not supported.
In Alias, choose File > Import > Subdiv, and browse to your SF3D file.
Ensure that All Files (.) is selected in the file Open window so that your SpeedForm SF3D files appear.
Click Open.
Your T-Spline model is converted to an Alias Subdivision object.
When you save an Alias subdivision object or a SpeedForm T-Spline object to an OBJ file, you can easy exchange these objects between the applications.
In Alias, select the subdivision objects you want to transfer.
Choose File > Export Active as Subdiv.
Name your new OBJ file.
Your subdivision object is saved as an OBJ file.
In SpeedForm, choose File > Import, and browse to your OBJ file.
Click Open.
Use the Convert tool to turn the model into a T-Spline object by choosing Utilities > Convert.
You can now continue editing your Alias subdivision object in SpeedForm.
You can now continue editing the SpeedForm T-Spline object as a subdivision object in Alias.