How to render a transparent shadow plane through the glass?

[Anonymous]

Hi, can anyone advise me how to render a transparent plane for shadows through glass? If I don't have a plane behind the glass, it works properly, but you can still see behind the glass ... as you can see in the test renders. I also attach the settings of the glass material and the shadow plane. I have aiShadowMatte material on the shadow plane. I need to render with shadows without background ...Test renderShadow plane settingsShadow plane settings2Glass_settingsGlass_settings2