C4D Alpha 4.1 - shadows through refractive glass

[exor]

I've some trouble with shadows through refractive glass. Any ideas? alpha 4.1


p.s.: Its also depending on the camera angle, really strange!

[Juraj]

This is unfortunately a bug in Corona's core. Therefore affects all versions regardless of Host application.

Here is more info and workaround methods :
https://forum.corona-renderer.com/index.php/topic,10923.0.html

And Ondra's estimate for solution:

I cannot give you any estimate yet, all I can say is that we will revisit it and start doing it if things go well after 1.4

[Ondra]

I think it is time to finally fix this in 1.5