Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: FlorianW. on 2018-08-01, 16:26:36

Title: [solved] Corona + 3dsMax Visibility
Post by: FlorianW. on 2018-08-01, 16:26:36

I'm having issues with animated visibility in 3dsmax. An object is triggered to zero visibility, but it shows up in a transparent look, when rendererd with Corona.

is this a known issue?

Thanks!

Title: Re: Corona + 3dsMax Visibility
Post by: maru on 2018-08-01, 16:45:53

Hi, can you post some example images showing this?

Also, which version of Corona and 3ds Max are you using?

Title: Re: Corona + 3dsMax Visibility
Post by: FlorianW. on 2018-08-03, 09:11:17

[SOLVED]

When adding visibility track to object, it doesn't work with corona.
Animating visibility with "Visibility Assistant" from scriptspot works with corona.

Title: Re: Corona + 3dsMax Visibility
Post by: Frood on 2018-08-03, 12:04:59

Quote from: sequana on 2018-08-03, 09:11:17

When adding visibility track to object, it doesn't work with corona.

Cannot confirm this, it just works as is should. Even on a group containing objects (or directly on any object). Maybe you had "by layer" active in the object properties (Max design default). Even "inherit visibility" is respected correctly.

Good Luck

Title: Re: [solved] Corona + 3dsMax Visibility
Post by: FlorianW. on 2018-08-03, 13:25:08

Yes, i meanwhile found out what's the poblem. i used an acrylic opaque black corona material from the official library which has volume and translucency attributes. As soon as you trigger the visibility of such an object it makes glitches and sjows up slight transparent even when not visible. I didn't know that, but now i do! :)

Title: Re: [solved] Corona + 3dsMax Visibility
Post by: Frood on 2018-08-03, 15:32:54

Thanks for adding that. SSS mode is consistent here btw. and scales with visibility.


Good Luck

Title: Re: [solved] Corona + 3dsMax Visibility
Post by: dzook on 2023-04-03, 01:58:10

Hello. I still have the same issue with Corona 9.
An object inherits it's visibility from a group, which has a visibility track, "By Object" parameter of the object is already set. But I see the floating subsurface stuff on renders.
Can you explain please, is there any solution or should I just avoid using a material with Volumetric Scattering?

Title: Re: [solved] Corona + 3dsMax Visibility
Post by: Frood on 2023-04-03, 18:12:39

Hi,

there is no simple solution using Corona 9 or older. You would have to animate absorption color from the current value to plain white (or script it, or parameter-wire it depending on visibility of the parent...).

But Corona v10 will do that for you. Currently available as daily build. Changelog where it got implemented:

https://forum.corona-renderer.com/index.php?topic=38385.msg208744#msg208744


Good Luck