public void removeFilter(Filter filter) {
        if (filter == null) {
            throw new IllegalArgumentException("Filter cannot be null.");
        }
        filters.remove(filter);
        filter.cleanup(renderer);
        updateLastFilterIndex();
    }
removes this filters from the filters list

@param filter the Filter to remove (not null)
jme3-core/src/main/java/com/jme3/post/FilterPostProcessor.java