Render Mask creates "large" square artifacts, when rendering with LC and Bruteforce!

V-Ray V-Ray for 3ds Max V-Ray for 3ds Max :: Issues
1

The artifacts go away if I use bruteforce + bruteforce, of if I don’t use render mask, or if I use progressive!

to devs, if you need the .max file it’s on the ftp with “If you use render mask, there are artifacts in bucket renders.max” this file name :slight_smile:

If you use render mask, there are artifacts in bucket renders.jpg
If you use render mask, there are artifacts in bucket renders.jpg811×615 61.1 KB

2

Does disabling adaptive lights help?

3

YES it does, thanks :slight_smile:
Not sure why I didn’t think of that .. it’s ALWAYS adaptive lights .. lol

4

Yeah, I think I have found in my VFX renderings it is faster without adaptive lights well over half the time. More like 80% of renders are better with it not set to adaptive.

Maybe it works well for arch-viz, but so often it is both slower and noisier with adaptive lights turned on, and now in VRay5 it frequently causes the weird bucket issues.

5

Can you send a scene for this?

6

The option to turn off the adaptive lights will be removed soon; as Peter mentioned it will be great if you can get us any examples of scenes that are slower or have artifacts, so that we can fix them in time.

Best regards,
Vlado

7

While I will certainly see if I can dig up any scenes with issues that I can share I can’t fathom how we, the users, (or Chaos) are going to benefit In any way from removing the setting? Can’t it just be hidden in expert mode?

I know I sound like a broken record, but we want More settings and More control, not less. There is no do-what-I-want renderer any more than there exists a do-what-I-mean compiler.

The preprocessor will be disabled in the next compiler release… ??? You liked the ternary operator? We are taking that out. (Ok, that makes sense!)

EDIT: I sent a scene and assets that renders SLOWER with Adaptive Lights on. I will update this when I get a ticket number.Thanks. -
Ticket 317-631-5958 Adaptive Lights Slower Render

8

i uploaded the file to your ftp along with the original post :slight_smile:
“to devs, if you need the .max file it’s on the ftp with “If you use render mask, there are artifacts in bucket renders.max” this file name”

9

Hi @anders ,

We are not able to find the file on the FTP. Would it be possible to try to upload it again, or send us a link using a file sharing service to support@chaosgorup.com. Please mention this thread in the email.
Thanks.

10

sent to the email.. att you :slight_smile:

11

Hi @anders

Thank you for the scene file. You have two V-Ray Dome lights that are related to the issue. When a render mask is used and more than one V-Ray Dome light, the issue will occur.
We have reported it into our bug-tracker (ID:VMAX-10352) and we will keep you posted. If you use separate V-Ray Dome lights for diffuse and reflections then the issue won’t reproduce.

12

thanks Martin, that’s really good news :slight_smile:

13

If I could add to this post (as this is where Vlado said adptive option is going), the attached shows errors using a FasstSSS2.
There is one dome and a simple mesh.

ADAPTIVE ON.jpg
ADAPTIVE ON.jpg1234×926 106 KB

14

I’m not getting this at all, would you be able to share the scene which exhibits the behaviour, including the hdri?
You can send the stuff to my email, if you prefer.

EDIT: nvm, it’s turning cast shadows off on the geo which triggers the behaviour.
In that case, you *need* to have “Scatter GI” active, and the issue will disappear.

sss2.jpg
sss2.jpg1280×720 130 KB

15

Yes it’s odd and I think it is linked to the hdri, as I’ve tried a few and they all exhibit blocks to some extent.
I sent you a link to scene and the specific one which gave the example above.
If it is the hdri then maybe there is something we can do to them if they cause an issue.

16

It’s a bona fide issue which has got to do with the raytraced modes of the single scatter.
Thanks so much for the report!
Filed under VMAX-10356.