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Author Topic: forestpack grass rendering some objects blacks (vray GPU)  (Read 462 times)

leo.surrealismo

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forestpack grass rendering some objects blacks (vray GPU)
« on: September 27, 2019, 04:21:39 PM »
hi,
I have a forest pack that renders some geometry black. If I change to cpu, it renders fine.
I have a vray2side material on it.
and another question, how it woud be a basic leaf shader? my translucency is grayed out.
I can sen you the file if you want.

regards,
leo

Rokas

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Re: forestpack grass rendering some objects blacks (vray GPU)
« Reply #1 on: September 27, 2019, 04:28:11 PM »
Hi, welcome to the forum!

Your scene file would help. Thanks!
Rokas
iToo Software

Michal Karmazín

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Re: forestpack grass rendering some objects blacks (vray GPU)
« Reply #2 on: September 27, 2019, 04:33:32 PM »
Hi,

I would suggest you to increase Global switches - Max transp. levels (default value is 50) to check if there's any difference. Please feel free to send us your scene and we'll have a look at it here. Ideally, could you try to reproduce the problem with a minimal scene and send us such a scene? Thanks in advance for any further comments on this issue you can share about it with us / our user community (in case some user(s) will run into similar troubles).

Best regards,

leo.surrealismo

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Re: forestpack grass rendering some objects blacks (vray GPU)
« Reply #3 on: September 27, 2019, 05:02:40 PM »
email sent!
I´m new on GPU and can´t find max transparency levels setting. 

leo.surrealismo

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Re: forestpack grass rendering some objects blacks (vray GPU)
« Reply #4 on: September 27, 2019, 05:58:28 PM »
Answer from chaosgroup:
Hello! It looks like an issue with Forest Pro in Edge mode with Multi/Sub-Object material which we have logged in our system. If this is not your case, it would be best to send a scene for investigation.

Rokas

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Re: forestpack grass rendering some objects blacks (vray GPU)
« Reply #5 on: September 27, 2019, 06:04:32 PM »
Thanks for file and this note. We will check it.
Rokas
iToo Software

leo.surrealismo

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Re: forestpack grass rendering some objects blacks (vray GPU)
« Reply #6 on: September 27, 2019, 07:16:50 PM »
I did turn off edge mode and solve it.
is it a bug?
best regards,

Rokas

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Re: forestpack grass rendering some objects blacks (vray GPU)
« Reply #7 on: September 27, 2019, 07:29:32 PM »
With edge mode disabled it works differently, and result is different.
This must be checked deeper. We will have an answer on Monday.
Rokas
iToo Software

leo.surrealismo

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Re: forestpack grass rendering some objects blacks (vray GPU)
« Reply #8 on: October 22, 2019, 11:10:41 PM »
hi rokas,
did you have time to look at the scene?

Rokas

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Re: forestpack grass rendering some objects blacks (vray GPU)
« Reply #9 on: October 24, 2019, 08:49:45 AM »
Hi
Sorry for delayed answer. Unfortunately we have no control how vRay GPU performs it's calculations. This issue is entirely to chaos group to solve.
In Your note from Chaos Group it seems that they are aware of it. Hopefully it will be solved.

Unfortunately we can't influence this.
Rokas
iToo Software