public void init(Renderer renderer, int width, int height, Format textureFormat, Format depthBufferFormat, int numSamples) {
            init(renderer, width, height, textureFormat, depthBufferFormat, numSamples, false);
        }
init the pass called internally

@param renderer (not null)
@param width the image width (in pixels, &ge;0)
@param height the image height (in pixels, &ge;0)
@param textureFormat the format of the rendered texture
@param depthBufferFormat the format of the depth buffer
jme3-core/src/main/java/com/jme3/post/Filter.java