How to delete one of the material in the sub-material ！

[Anonymous]

How to delete one of the sub-material by maxscript like the delete button on the multi/sub-object rollout。

I used  deleteitem $.material.materiallist 2，but the result is  not what I want ！

I need some helps! 

[Anonymous]

I'm not offering mxs help but if your aim is to clean out unused sub-mats...then there's this:

https://knowledge.autodesk.com/support/3ds-max/learn-explore/caas/CloudHelp/cloudhelp/2016/ENU/3DSMa...

[blakestone]

what about this : 

deleteItem ($.material.materialIDList) 2 

[Anonymous]

I tried but the result is different from the delete button. see below

[Anonymous]

That is a good way.

Many thanks !

[blakestone · Accepted solution]

This should do the trick...

It's basically re-assigning materials before the delete.

(
	local id = 3 -- the matid to be deleted
	local mat = $.material

	with undo on (
		for i = id to mat.materialList.count - 1 do (
			mat.materialList[i] = mat.materialList [i+1]
		)
		deleteItem mat.materialIDList id
	)
)

[Alfred.DeFlaminis]

Hello @Anonymous and welcome to the community,

Did the posts by @blakestone and/or @Anonymous help solve this issue for you?  Are you all set now?  If so, would you please mark any posts that had the solution in them by clicking "Accept as Solution" for me, please?  Thanks very much!  This way the next person with this question can benefit from the great work that Blakestone and Vusta have done here.  

Best Regards,

[Alfred.DeFlaminis]

Hello @Anonymous,

I just wanted to follow up here, any thoughts on my previous post?

Best Regards,