/** * Run a vignette pass on the texture. * * @param amount Amount of the vignette effect. * @param falloff Fall off of the vignette effect. * @return Builder object. */ public PostFXBuilder vignette(float amount, float falloff) { VignettePass pass = getPass(VignettePass.class); pass.setAmount(amount); pass.setFalloff(falloff); supervisor.pass(pass); return this; }