topic Re: Bug Max2018. Layer Explorer list is empty when merged objs w different sys u in 3ds Max Forum

Bug Max2018. Layer Explorer list is empty when merged objs w different sys units

ViperAleks — Tue, 02 Apr 2019 17:58:49 GMT

There is bug in Max 2018. When I merge a .max file created in older versions of Max to Max2018 and merged file system units are different than the current system units then I have empty Layer Explorer list. And there is no way to show merged objects in this list. If I switch Scene Explorer to Hierarchy mode then I see objects. If I press 'H' to select an object in the scene I see all objects. But Layers list doesn't show merged objects.

I attach a test file. The system units of the file are inches. To reproduce the bug set the Max2018 system units to meters or centimeters and merge the provided file. Open Layer Explorer. You will notice that the Layer Explorer list is empty.

If I open provided file instead of merging with auto conversion of units then Layer Explorer works fine after that.

Re: Bug Max2018. Layer Explorer list is empty when merged objs w different sys u

brentscannell — Wed, 03 Apr 2019 12:45:40 GMT

Hi @ViperAleks

This sounds a little like an issue we've been looking at recently, but I am not entirely sure. We published this article a little while ago which seemed to resolve the issue for the user's experiencing the issue before, however I tried the fix on your scene and I don't believe it worked. You can give it a try if you like, but I'll pass your scene and repro steps to the development team to see if it can help with the investigation.

https://knowledge.autodesk.com/support/3ds-max/troubleshooting/caas/sfdcarticles/sfdcarticles/Layers-in-Scene-Explorer-disappear-in-3ds-Max.html

Note: some browsers download the attached script as a .zip, you must rename it to .ms after downloading.

Re: Bug Max2018. Layer Explorer list is empty when merged objs w different sys u

ViperAleks — Tue, 09 Jul 2019 23:28:05 GMT

This bug still exists in Max2020 Update 1. Is this really difficult bug to fix?

Re: Bug Max2018. Layer Explorer list is empty when merged objs w different sys u

ViperAleks — Wed, 15 Jan 2020 20:03:08 GMT

This bug is killing me. Is there a way to manually assign objects to another layer? I hope this operation will make them visible again in Layers Explorer.

Re: Bug Max2018. Layer Explorer list is empty when merged objs w different sys u

ViperAleks — Thu, 15 Oct 2020 09:14:48 GMT

This bug has not been fixed yet.

Re: Bug Max2018. Layer Explorer list is empty when merged objs w different sys u

Diffus3d — Fri, 16 Oct 2020 07:05:04 GMT

I've been using Copitor to send files between max session and haven't noticed any problems. However maybe all my units are the same. Worth a shot though.

Best Regards,

Re: Bug Max2018. Layer Explorer list is empty when merged objs w different sys u

ViperAleks — Fri, 30 Oct 2020 06:49:53 GMT

Could you check the files from the first post?

Re: Bug Max2018. Layer Explorer list is empty when merged objs w different sys u

Diffus3d — Fri, 30 Oct 2020 07:14:24 GMT

It's kinda bonkers but for me that problem is reversed. Works fine in cm or mm but in inches the objects are missing.

Anywho, this did the trick. Script credit to Andrew Marlow here.

If you get a chance, you should submit a bug report. I remember logging info about this bug but I never knew about the unit differences being a component, and it's possible that information might be key to solving the problem. This is tough to repro without that knowledge.

TLDR (Select objects that arent showing up and run this script. It will create a new layer with the objects.)

layer = LayerManager.newLayer() for n in (selection as array) do layer.addnode n

Best Regards,

Re: Bug Max2018. Layer Explorer list is empty when merged objs w different sys u

ViperAleks — Wed, 04 Nov 2020 01:40:59 GMT

This small script helps to solve the problem. Thank you so much!

Re: Bug Max2018. Layer Explorer list is empty when merged objs w different sys u

Diffus3d — Wed, 04 Nov 2020 02:20:09 GMT

Nice! Glad to hear it! 🎀

Best Regards,