Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => Topic started by: Jpjapers on 2017-10-30, 12:43:15

Title: 1.7 - Shadowcatcher doesnt seem to respond to lightmtl?
Post by: Jpjapers on 2017-10-30, 12:43:15
I have some lights set up with a lightmtl and in lightmix they affect the geometry fine but the shadowcatcher doesnt change at all no matter how high i increase the value.
Any ideas?

Thanks
J
Title: Re: 1.7 - Shadowcatcher doesnt seem to respond to lightmtl?
Post by: PROH on 2017-10-30, 13:05:37
Hi. Both Corona-Lights and Corona-LightMtl need to have the "Shadowcatcher illuminator" checkbox activated to illuminate a shadowcather.

Hope it helps
Title: Re: 1.7 - Shadowcatcher doesnt seem to respond to lightmtl?
Post by: Jpjapers on 2017-10-30, 13:07:49
Quote from: PROH on 2017-10-30, 13:05:37
Hi. Both Corona-Lights and Corona-LightMtl need to have the "Shadowcatcher illuminator" checkbox activated to illuminate a shadowcather.

Hope it helps

Awesome thanks, is that a new thing? Ive never noticed ive had to do that before?
Title: Re: 1.7 - Shadowcatcher doesnt seem to respond to lightmtl?
Post by: PROH on 2017-10-30, 13:20:54
AFAIK it's been that way always :)
Title: Re: 1.7 - Shadowcatcher doesnt seem to respond to lightmtl?
Post by: Jpjapers on 2017-10-30, 14:13:48
Checked the box on the light material and its still not working :(
Title: Re: 1.7 - Shadowcatcher doesnt seem to respond to lightmtl?
Post by: romullus on 2017-10-30, 14:15:33
Does it not work at all, or not work only with lightmixer?
Title: Re: 1.7 - Shadowcatcher doesnt seem to respond to lightmtl?
Post by: Jpjapers on 2017-10-30, 14:19:22
Quote from: romullus on 2017-10-30, 14:15:33
Does it not work at all, or not work only with lightmixer?

Only with lightmixer. If i boost the intensity in the material it works fine in the beauty pass but as soon as i check or uncheck the light in lightmix panel it switches to the lightmix pass and returns to not working. Happy to send the file to devs if you cant replicate on your end.
Title: Re: 1.7 - Shadowcatcher doesnt seem to respond to lightmtl?
Post by: TomG on 2017-10-30, 14:28:21
That would be the situation listed on the helpdesk as a current limitation with LightMix and the Shadowcatcher?

https://coronarenderer.freshdesk.com/support/solutions/articles/12000017218-how-to-use-interactive-lightmix- (https://coronarenderer.freshdesk.com/support/solutions/articles/12000017218-how-to-use-interactive-lightmix-)
https://coronarenderer.freshdesk.com/support/solutions/articles/5000516180-known-bugs-and-limitations (https://coronarenderer.freshdesk.com/support/solutions/articles/5000516180-known-bugs-and-limitations)
Title: Re: 1.7 - Shadowcatcher doesnt seem to respond to lightmtl?
Post by: Jpjapers on 2017-10-30, 15:17:43
Quote from: TomG on 2017-10-30, 14:28:21
That would be the situation listed on the helpdesk as a current limitation with LightMix and the Shadowcatcher?

https://coronarenderer.freshdesk.com/support/solutions/articles/12000017218-how-to-use-interactive-lightmix- (https://coronarenderer.freshdesk.com/support/solutions/articles/12000017218-how-to-use-interactive-lightmix-)
https://coronarenderer.freshdesk.com/support/solutions/articles/5000516180-known-bugs-and-limitations (https://coronarenderer.freshdesk.com/support/solutions/articles/5000516180-known-bugs-and-limitations)

Thats correct, when you say a limitation. Is that a feature that cannot be implemented because of some kind of restriction or something that is still on the to-do list?
Title: Re: 1.7 - Shadowcatcher doesnt seem to respond to lightmtl?
Post by: maru on 2017-10-30, 15:27:03
Can you show an example of what you are getting right now, and explain what you would like to get?
There are some other reports about the shadowcatcher, especially when it's reflective.
Title: Re: 1.7 - Shadowcatcher doesnt seem to respond to lightmtl?
Post by: PROH on 2017-10-30, 15:34:51
@Maru - Try a very simple scene yourself, and I think it's quite clear what would be expected.....
Title: Re: 1.7 - Shadowcatcher doesnt seem to respond to lightmtl?
Post by: Jpjapers on 2017-10-30, 15:40:22
Quote from: maru on 2017-10-30, 15:27:03
Can you show an example of what you are getting right now, and explain what you would like to get?
There are some other reports about the shadowcatcher, especially when it's reflective.

Ive attached an image. The first pic is the standard beauty pass. Then when i adjust it in lightmix (increased light to demonstrate) and finally how it should be, achieved by applying the lightmix settings to the scene (different LM setting to middle image)
Title: Re: 1.7 - Shadowcatcher doesnt seem to respond to lightmtl?
Post by: maru on 2017-10-31, 09:32:53
Sorry, I did not read the thread carefully. Yes, this is the known shadowcatcher+lightmix limitation.
I think the main reason is that the shadowcatcher does not follow the same rules as other materials when using the lightmix,
Title: Re: 1.7 - Shadowcatcher doesnt seem to respond to lightmtl?
Post by: Jpjapers on 2017-10-31, 10:16:36
Quote from: maru on 2017-10-31, 09:32:53
Sorry, I did not read the thread carefully. Yes, this is the known shadowcatcher+lightmix limitation.
I think the main reason is that the shadowcatcher does not follow the same rules as other materials when using the lightmix,

Is it something that might work in the future?
Its not a dealbreaker for me at all im just curious :P