How can I freeze part of object while applying simple deform(twist)? As the [Axis, Origin] is set to the Hemi lamp, the whole body twist along the lamp (upper image)

What I really want is to keep the feet freeze while applying the twist.(like lower image)

Is it possible?

thanks.




After using vertex group, the lower body is freeze.
But the weight paint not working well.
I believe using vertex groups/weight painting would be the best way to accomplish this. In the screenshot below the selected vertices are added to a vertex group and plugged into the deform modifier:



Keep in mind that with weight painting, you can also have areas that are only partly influenced: (more flexibility)



Lastly, there are tons of resources on the web about vertex groups, here is one link to the blender manual.