Forest edge (once again) not working

[AVARCH]

So this is a basic setup, using Common grass 01 large. I put the Forest Pack Icon, I defined a surface, I activated area, set a distribution (full), set it to edge mode.

At first it seems fine, calculating light cache, looking like the first screenshot (grass01).
But then it just throws the edge mode out the window and renders like in grass02.jpg.

What's going on? It's such a simple setup.

Using 3ds max 2024
Vray 6 2.1

[Michal Karmazín]

Hi,

That’s really strange. I’ve just done a quick test with the Edge Boundary Checking feature using Forest Pack Pro 9.2.4 and V-Ray 6 Update 2.1, and it renders correctly on my end. Please feel free to send us your scene, and we’ll be happy to check it here. Thank you in advance.

Best regards,

[AVARCH]

Hi. I did a few more tests before sending you the scene and I noticed something. The problem was caused by the atmospherical VrayToon-effect that was active in the scene. You can exclude your forest from the VrayToon-Effect so you don't get the outlines, this works fine with trees and bushes. But VrayToon will somehow prevent the edge mode from working, even if you exclude the forest element.

Bottom line: you can't use edge mode for Forestpack when you have VrayToon active in the scene, even if you exclude the Forest element from the effect, edge won't work.

Do you agree?

[Michal Karmazín]

My apologies for the late reply. The Edge feature renders non-visible items as transparent, and it seems that VRayToon is affecting the transparency pass in some way. However, based on my quick test, excluding the Forest object resolves the issue. Please find the attached sample scene (250617_VRayToonFPExcluded_SampleScene_ITOOSOFT.max) for your reference.

Best regards,

[AVARCH]

Hi

Strangely, this won't work on my end. The Edge will only work when I completely disable the VrayToon. This is a screenshot from your file.
What does that mean?

[Michal Karmazín]

You previously mentioned you're using V-Ray 6 Update 2.1. On my end - using 3ds Max 2025, V-Ray 6.20.06, and the latest Forest Pack Pro 9.2.4 - the Edge feature works correctly, provided the Forest object is excluded from the VRayToon effect. Could you please confirm whether you're using the latest version of Forest Pack? If not, I recommend upgrading to the most recent release to see if that resolves the issue.

Best regards,

[AVARCH]

Hi

Yes, using Forest Pack 9.2.4. I could try upgrading to Max25 if that would make any difference.