Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: zules on 2020-12-17, 12:39:17

Title: Cast shadows doesnt work properly
Post by: zules on 2020-12-17, 12:39:17

Hello,
I'm facing weird problem, I try to render cast shadows from invisible trees through a windows.

I cant get the shadows if Visible to refraction/reflection isn't activated...

See fig01 : all enabled > the floor shadows are visible
See fig02 : not visible to camera > also
See fig03 : not visible to camera & ref/refraction... > no more.

There is glass on both windows and door, except in the middle (see purple tree visible fig04).

What happens ? Why cant I get only the floor shadows and no visibility of the trees at all.

Thanks !

JG

Title: Re: Cast shadows doesnt work properly
Post by: marchik on 2020-12-19, 18:35:03

you can try to use corona rayswitch material for your trees with only GI slot enabled

Title: Re: Cast shadows doesnt work properly
Post by: zules on 2020-12-22, 18:24:53

Hello, thanks to help !
Not working... i'm desperate !
Is this a bug to report ??

Title: Re: Cast shadows doesnt work properly
Post by: philipbonum on 2021-01-04, 08:40:20

Hi, I've come across this problem before myself, and I believe the "fix" is to turn on "Thin(no refraction) on the window material and leaving "visible to refraction/reflection" turned on, on the trees.

I'm hoping that one day the Corona team could work on fixing more of these fake things we do to simplify compositing etc. Like "reflection planes" casting shadow even if "Cast shadows" is turned off.
Or maybe I just haven't figured out how to do it correctly :P

Title: Re: Cast shadows doesnt work properly
Post by: GeorgeK on 2021-01-04, 09:47:25

Quote from: zules on 2020-12-22, 18:24:53

Hello, thanks to help !
Not working... i'm desperate !
Is this a bug to report ??

This is a feature request and we have it already logged.

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