public void setNormalSensitivity(float normalSensitivity) {
        this.normalSensitivity = normalSensitivity;
        if (material != null) {
            material.setFloat("NormalSensitivity", normalSensitivity);
        }
    }
Sets the normals sensitivity. Default is 1.

@param normalSensitivity the desired sensitivity (default=1)
jme3-effects/src/main/java/com/jme3/post/filters/CartoonEdgeFilter.java