lighttracing disables reflections on disney

Use this forum for general user support and related questions.
Forum rules
Please upload a testscene that allows developers to reproduce the problem, and attach some images.
Post Reply
User avatar
lacilaci
Donor
Donor
Posts: 1969
Joined: Fri May 04, 2018 5:16 am

lighttracing disables reflections on disney

Post by lacilaci »

when using disney material and lighttracing material reflections gets disabled when using glossiness bellow 0.05

to best illustrate the problem I've put metallic slider on disney to max but the problem is present even without it

disney at glossiness 0.05
lt_ondisneymetal05.png
disney at glossiness on anything bellow 0.05
lt_ondisneymetal.png
this is not happening on glossy2 and metal material which work the same even when using lighttracing
lt_onmetal.png
the problem is not present when lighttracing is disabled
kintuX
Posts: 809
Joined: Wed Jan 10, 2018 2:37 am

Re: lighttracing disables reflections on disney

Post by kintuX »

I think that what you're observing, are light rays that don't get to the eye. And if IIRC, it's already mentioned couple of times.
Take notes & simply don't go under/over the threshold. ;)
User avatar
lacilaci
Donor
Donor
Posts: 1969
Joined: Fri May 04, 2018 5:16 am

Re: lighttracing disables reflections on disney

Post by lacilaci »

kintuX wrote: Thu Aug 15, 2019 11:07 pm I think that what you're observing, are light rays that don't get to the eye. And if IIRC, it's already mentioned couple of times.
Take notes & simply don't go under/over the threshold. ;)
Not sure what you mean, and also why the different behavior between disney and others...
User avatar
Dade
Developer
Developer
Posts: 5672
Joined: Mon Dec 04, 2017 8:36 pm
Location: Italy

Re: lighttracing disables reflections on disney

Post by Dade »

I should have fixed this problem.
Support LuxCoreRender project with salts and bounties
kintuX
Posts: 809
Joined: Wed Jan 10, 2018 2:37 am

Re: lighttracing disables reflections on disney

Post by kintuX »

Dade wrote: Sun Aug 18, 2019 3:31 pm I should have fixed this problem.
Yes, it works now.

BTW, while we're dealing with Disney's reflections - where's its Fresnel/IOR setting?
User avatar
Dade
Developer
Developer
Posts: 5672
Joined: Mon Dec 04, 2017 8:36 pm
Location: Italy

Re: lighttracing disables reflections on disney

Post by Dade »

kintuX wrote: Thu Aug 22, 2019 5:32 pm
Dade wrote: Sun Aug 18, 2019 3:31 pm I should have fixed this problem.
Yes, it works now.

BTW, while we're dealing with Disney's reflections - where's its Fresnel/IOR setting?
It is part of additional features introduced at SIGGRAPH 2015, we have only SIGGRAPH 2012 features at the moment.
Support LuxCoreRender project with salts and bounties
kintuX
Posts: 809
Joined: Wed Jan 10, 2018 2:37 am

Re: lighttracing disables reflections on disney

Post by kintuX »

Dade wrote: Thu Aug 22, 2019 6:08 pm
kintuX wrote: Thu Aug 22, 2019 5:32 pm
Dade wrote: Sun Aug 18, 2019 3:31 pm I should have fixed this problem.
Yes, it works now.

BTW, while we're dealing with Disney's reflections - where's its Fresnel/IOR setting?
It is part of additional features introduced at SIGGRAPH 2015, we have only SIGGRAPH 2012 features at the moment.
A-OK. Thanks for the note.
Post Reply