public void setApproximateTangents(boolean approximateTangents) {
        this.approximateTangents = approximateTangents;
    }
Alter whether this Control approximates tangents.

@param approximateTangents true to approximate tangents, false to get
them from a VertexBuffer
jme3-core/src/main/java/com/jme3/anim/MorphControl.java