Optimize scene size does destroy guides

[oglu]

Is this a known issue? Optimize scene size does delete somehting in the guides.
I cant build anymore.

[chrislesage]

This is not really a “bug”. You are running a Maya command that automatically deletes a whole bunch of nodes. You have to be extremely careful when you run that command. Especially the “empty groups” option, which will delete useful transforms that are used for holding attributes or metadata. “Unused nodes” can sometimes delete utility nodes, even if they are connected to things.

If you are having file size issues, a better option is to select your guide and “export selection”, or specifically find the nodes that are causing the problem, and delete them yourself. Don’t trust Maya too far!

2 Shifter Tips: Files sizes and proxy attributes

Yeah I “export selection” on the guide once in a while. But here is what you can do every time. The two biggest things are the controller tags and ngSkin layers. If you delete your rig without deleting ngSkin layers first, then they stay in the scene as loose nodes. I put the following code in a PRE script that runs before each time I build. So these nodes can never accumulate more than from the last build. import pymel.core as pm # Delete all ngSkin nodes pm.delete(pm.ls(type='ngSkinLayerDa…

[oglu]

Thanks thats great info!