@Override
    public Object jmeClone() {
        LodControl clone = (LodControl)super.jmeClone();
        clone.lastDistance = 0;
        clone.lastLevel = 0;
        clone.numTris = numTris != null ? numTris.clone() : null;
        return clone;
    }
Sets the triangles per pixel value. The
<code>LodControl</code> will use this value as an error metric to
determine which LOD level to use based on the geometry's area on the
screen.

@param trisPerPixel triangles per pixel
jme3-core/src/main/java/com/jme3/scene/control/LodControl.java