@Override
    public void resetObject() {
        this.id = -1;
        this.mipsWereGenerated = false;
        this.lastTextureState.reset();
        setUpdateNeeded();
    }
Determine if the image is NPOT.

@return if the image is a non-power-of-2 image, e.g. having dimensions
that are not powers of 2.
jme3-core/src/main/java/com/jme3/texture/Image.java