@Override
    @SuppressWarnings("unchecked")
    public void read(JmeImporter im) throws IOException {
        InputCapsule ic = im.getCapsule(this);
        numSamples = ic.readInt("numSamples", 0);
        filters = new SafeArrayList<>(Filter.class, ic.readSavableArrayList("filters", null));
        for (Filter filter : filters.getArray()) {
            filter.setProcessor(this);
            setFilterState(filter, filter.isEnabled());
        }
        assetManager = im.getAssetManager();
    }
Returns the depth format currently used for the internal frame buffer's depth buffer

@return the depth format
jme3-core/src/main/java/com/jme3/post/FilterPostProcessor.java