akmal2990
Posts: 2
Joined: Tue 31 Mar 2020 16:21

Muddy Mirror reflectance in Artlantis 2020

Tue 31 Mar 2020 17:22

Hello,

I'm new in Artlantis 2020 (in mac), when I put in render objects, mirrors reflectance are absent (so muddy), like in photo below. Please can you help. Thanks in advance.
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CamilleSarrut
Posts: 688
Joined: Tue 20 Oct 2015 08:41

Re: Muddy Mirror reflectance in Artlantis 2020

Tue 31 Mar 2020 17:58

Hello,

It is because you use the Denoiser, it blurs transparent shaders.

Unfortunately this issue won't be fixed, in fact it is more a limitation than a bug...
Here is an explanation from Thomas, one of the developer at Abvent in charge of the rendering:

The algorithm doesn't know if the material has a reflected, a transparent or just a diffuse channel.
When the energy/light variation is low on a surface, it blurs the result, whatever we could see behind the glass, or through the mirror.
It is a limitation inherent to the chosen algorithm.

In other words, the algorithm works only on the first shading level.

Best regards,
Camille Sarrut
Abvent R&D

akmal2990
Posts: 2
Joined: Tue 31 Mar 2020 16:21

Re: Muddy Mirror reflectance in Artlantis 2020

Tue 31 Mar 2020 19:21

Thank you so much for explaining this issue, but without denoiser I couldn’t reach like this good quality of picture, especially floor tile. The picture was always with noise around. Can you explain how can I reach best result, I mean with no noise, without denoiser?
Thanks in advance!

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CamilleSarrut
Posts: 688
Joined: Tue 20 Oct 2015 08:41

Re: Muddy Mirror reflectance in Artlantis 2020

Wed 1 Apr 2020 10:39

Hello,

The noise can come from Neon shader, HDRI lighting, Enhanced Background, depending on the origin we can use different rendering settings to reduce it.

I would have to see your rendering settings and shader settings to help you better.

You can send me your atla file, zipped by WeTransfer at sarrut@abvent.fr

Best regards,
Camille Sarrut
Abvent R&D

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