Wrong. For mine, there is a color in the scene background channel and caustics, sky, etc are on. Can’t speak for Silena.

So far, you have merely asserted that YOU don’t know how to do it. You have given no evidence that you have even tried in Carrara. If your subsequent responses do not demonstrate that you are a current Carrara user genuinely trying to render an image or an animation with this effect, I will put you on ignore.

BTW - love Shade for what it does. Look forward to discussing it on the Shade forum.