Problem with Cast shadows in Corona Compositing tag

[neverager]

When i'm trying to switch off Cast shadows in Corona Compositing tag it doesn't work.

[maru]

If you need this effect, the easiest way would be using the rayswitch material. Here is a 3ds Max guide, but it's nearly the same in C4D: https://coronarenderer.freshdesk.com/support/solutions/articles/5000516723
So you don't want to have GI rays enabled.

[neverager]

Thank you, but it's not the same as i wanted to do, it will be the same if i switch off "seen by GI" in the compositing tag.
I attached examples from cinema 4d (the first one) and 3ds max (the second one). When i switched off the cast shadows of the floor in the cinema, i still can't see the reflections of the lights on the bottom part of the cup, because lights doesn't go through the floor, but in 3ds max it works good! i hope it's possible to understand :)

[maru]

Sorry, but I still can't really understand it. What is your goal? What is the effect you are trying to achieve?

[neverager]

Take a look on the second image of cocktail, the light is reflected along the cup until the bottom. I want to do the same effect in cinema 4d.

[maru]

Ok, but I do not know how the whole scene looks. Are the lights covered by the floor? Are they far away, or close to the object? What is the reason why they are visible or not?

[neverager]

It looks like that, The lights covered by the floor, that's why i want to switch off cast shadows of the floor.

[burnin]

Yes, there are some bugs with this tag... i.e. if you disable 'Seen by GI' there will be no shadows ;)
Can't remember if there's a bug report but i think developers are aware of it.
Check on Mantis.

[neverager]

Just checked what we have in the last version of corona for cinema 4d.
The problems with сorona сompositing tag is still exist. When i switch off cast shadows, the object still drops shadow, and the same about "seen by GI" tag, even now it impossible to switch off cast shadows in material advanced options, because there is no this option.

https://dl.dropbox.com/s/2mx28e392gtqkgh/%D0%A1%D0%BA%D1%80%D0%B8%D0%BD%D1%88%D0%BE%D1%82%202018-11-29%2018.07.06.png?dl=0

[Beanzvision]

Dammit, I must have a broken Corona then ;)

[neverager]

Sorry, i was checking it in an old project, in the new project cast shadows tag works, but not like usually in another renderers.
Look on the reflection on the cylinder. I want the light goes through the floor, to get reflection of the full area light on the cylinder. Don't know how to do it another way in corona.

[Beanzvision]

Is this what you're trying to do?

[neverager]

Exactly! How did you do that?)

[neverager]

Sorry, just checked the file! I need reflections of the floor and light on the cylinder at the same time, on the floor i need just shadow