Arve

I've imported control points for a NURB designed in Rhino , but I struggle with the closed, clamped NURB-style. By setting order to a low value I get a clamped (start and end points) object, but the curves are not smooth.

I've attached two images, one with order set to 2 8 and closed to 0 1. The other image shows the same shape with order set to 1 8.

The object is supposed to be clamped and smooth, and to me it seems like I have to choose, and I do not know what to do about it. The object to the left is a NURB, the one to the right is a mesh with jit.gl.nurbs as vertex matrix for jit.gl.mesh.

Off course I can scale the object to the desired height, but it would be nice to understand why it won't clamp.

I'm a learner in OpenGL, and hope someone can help me out with some advice on this topic.

I've  imported control points for a NURB designed in Rhino , but I struggle with the closed, clamped NURB-style. By setting order to a  low value I get a  clamped (start and end points) object, but the curves are not smooth. 

I've attached two images, one with order set to 2 8 and closed to 0 1. The other image shows the same shape with order set to 1 8.
The object is supposed to be clamped and smooth, and to me it seems like I have to choose, and I do not know what to do about it. The object to the left is a NURB, the one to the right is a mesh with jit.gl.nurbs as vertex matrix for jit.gl.mesh.

I'm a learner in OpenGL, and hope someone can help me out with some advice on this topic.


Clamped NURBS