@Override
    public void postRender() {
        // Check as late in the frame as possible.  Subclasses can check earlier
        // if they like.
        checkValues();
    }
Creates a verifier app state that will check all of the specified
 checks and report errors using the specified error type.

@param errorType the mechanism to use
@param checkers which checks to perform
jme3-core/src/main/java/com/jme3/app/state/ConstantVerifierState.java