public void setIntensity(float intensity) {
        this.intensity = intensity;
        if (ssaoMat != null) {
            ssaoMat.setFloat("Intensity", intensity);
        }

    }
Sets the Ambient occlusion intensity default is 1.5

@param intensity the desired intensity (default=1.5)
jme3-effects/src/main/java/com/jme3/post/ssao/SSAOFilter.java