Weird shadows from glass on back mesh

good night guys

I have a problem where strange shadows are appearing behind the glass, in the shadow box. I’ve already checked the glass mesh and it’s not coplanar with the shadow box, I’ve tried adding thickness, removing thickness, deleting the back face, remodeling it in several different ways in 3dsmax. I’ve already smoothed the mesh, etc., but I can’t solve it. Changing the glass material also doesn’t solve the problem, any material I put there remains the same. When I delete the glass mesh, the shadow disappears.

glass with reflections

no reflection glass

you can see the glass divisions

hidden glass

Hi there,

I apologise for the inconvenience this issue has caused. Would it be possible for you to send us the D5 and 3ds Max files? We may need to assess this issue in order to pinpoint the cause and perhaps find out if this is a bug. You may send it to support@d5techs.com and have it titled “Clov-Forum Weird Shadows from Glass

1 Like

​ Clovis good morning

I had to split the file in order to send you on wetransfer, and im sending you the MAX file aswell

the links are on the email ive sent 1 min ago

thank you!

Hi @NOG_the_DOG

I have received your files, thank you so much.

@Clov good morning, heres the drive link

https://drive.google.com/drive/folders/1dcRzr4Ihvpr5ntkXpU1ai8lfYqi2XKcW?usp=sharing

Hi @NOG_the_DOG,

Thanks for resending your files, I have downloaded it and there were no errors compared to last time. I will be testing it and will update you regarding this issue. :blush:

@Clov

good afternoon !

i forgot to mention

the scenes where this bug appears the most are these takes ( video)

TAKE_07_ok

TAKE_ELEV_POSTERIOR

TAKE_AEREA_GIGANTE

Thankyou

Hi @NOG_the_DOG

I just tested your file and the unwanted shadows are also visible on my end whenever I click on the “Clips” that you have mentioned. These shadows are not visible in my preview window and “Scenes”, is it also the same on your end? Nevertheless, I have reported this issue further to my team and will be working on how we can fix this immediately. Thank you.

Hi @Clov good morning@

This shadows appears when the sun is facing directly the glass, like on those clips . it happens on static scenes and video as well. Ive tried to change materials, remodeled it with and without thickness, modeled with subdivided mesh but none of those methods solved the problem untill now.

i uploaded the final video if you are interested to see where it happens, and if you guys wanna give some opinions, i will be happy

thankyou

Hi @NOG_the_DOG,

Thanks for your confirmation. We have also replicated the issue on our end using another device and have submitted it further to our team for an in depth inspection and assessment. I will update you on our progress as soon as possible.

hi @Clov any solution? it happened in a minor degree in another project here at the office

I apologize for the delay, since most of our team had a national holiday. Basing on our test, it seems to be caused by the interlayers behind this glass. The reflection is on the flat surface behind the glass. And there are also spaces between the interlayers that would create shadows. When the sunlight comes through, the glass is transparent and you can see the shadows behind it.

Hiding interlayers(Object064 and Line967), the shadows won’t appear since they don’t have bearing surfaces.

3D885339-4CE0-4590-8784-B3F1D2AA6763-390-000003CF3A399B55
32C8995E-CD22-48F1-875A-10C1FE1997D4-390-000003CF2E75E3BD