Forest Pro 6.31 "Compiling Geometry" takes forever now

[katho3d]

I´ve recently upgraded Forest Pro from version 6.2.2 to 6.3.1 and now the render step "compiling geometry" sometimes takes 2 minutes and longer to complete (just seconds on v6.2.2). It just hangs with one CPU core at 100%.
I´m using 3ds max 2019 and V-Ray 3.7, but I´ve tested this on 3ds max 2021 and V-Ray 5 too, same problem.

[Rokas]

Hi

Does that happen with all Your scenes? Even most simple ones, i.e. scattered teapot few times?

[katho3d]

It only happens in one scene. I´ve just tried an older similar project and it renders perfectly. I will make some further tests.

[Rokas]

It only happens in one scene. I´ve just tried an older similar project and it renders perfectly. I will make some further tests.

Ok then pshare it with us and we will check it here too.

Please use this form to contact us if You can't attach files publicly.
Also You can use WeTransfer if compressed file is bigger than 6MB and paste the link in message.

[katho3d]

Now I have found the cause. If the surface is an xref object, "compiling geometry" for all forest objects takes an unusually long time. This was not a problem in Forest Pro v6.2.2

[Rokas]

Thanks for specifying.
I have did a test and could not reproduce described behavior.

Would You please send us Your scene (minimized that You can still experience the issue) and we will check it.

[katho3d]

That will be difficult because of the scene size, but I will try.
I´ve noticed another important thing. It happens only one time after opening the scene and directly rendering it. If you abort and click render again, it works perfectly, but with network rendering this is still a big problem. Seems it doesn´t update the surface before rendering the scene at least one time. Because directly after opening the scene the trees are not shown in the viewport, but they appear after rendering.

[katho3d]

Hello Rokas, I´ve sent you an e-mail.

[Rokas]

Hi katho3d. I have not got any email from You yet.

Please use this form to contact us if You can't attach files publicly.
Also You can use WeTransfer if compressed file is bigger than 6MB and paste the link in message.

[katho3d]

Hello, I´ve sent the e-mail with the "EMail" button directly under your profile picture. I´ve also tried the "use this form" Link, but I got an error 404. So I will send you the download link in a personal message.

[katho3d]

Private Message sent, but I think it didn´t work either because there is no message listed in "sent items". I will try it with the contact form on the iToo Software Website.

[Dustin]

Has something changed with the recent updates for 7.1? Im having a problem now with an unusually long geometry compilation time now as well. 

Vray 5 GPU, FPP 712 64 Bit.

[RealViz]

Isn't it only for grass or FP with edge detection? Because it's common.

[Dustin]

Does it have something to do with edge modifiers or scale and density?

[Paul Roberts]

I think we've seen this issue if the scattered objects have displacement. Please double check there are no displacement modifiers or displacement in the materials of the scatter sources.


Otherwise, please try to reproduce the problem in a minimal scene (deleting all objects not needed for Forest) and send us the files. We'll take a look at it.

Thanks,
Paul