public void setRenderedTexture(Texture2D renderedTexture) {
            this.renderedTexture = renderedTexture;
        }
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
@param numSample the number of samples per pixel (for multisampling)
@param material the Material for this pass
jme3-core/src/main/java/com/jme3/post/Filter.java