if (batch != null) {
if (batch != null && batch.isEnabled()) {
    public void setModelBound(BoundingVolume modelBound) {        this.worldBound = null;        if (batchList != null)            for (int i = 0; i < getBatchCount(); i++) {                GeomBatch batch = batchList.get(i);                if (batch != null) {                    batch.setModelBound(modelBound.clone(null));                }            }    }