I remember there was a video about explanation how to link Corona Sun to HDRi map on the official corona youtube channel. But I can`t find it now. So maybe you fellows will help me. If I understand right, in "parameter wiring" I should link "z rotation" of "corona sun target" to "uvwOffset" of my hdri bitmap. And in the window below I have to put some kind of formula for changing only a "u offset". But what is this formula like I don`t know.