unrigged mesh

[Beatricesss]

Unrigged mesh simplely meaning It's just an object floating without attach to any bone right? so avatar can wear it to any part of their body am I understand this correctly??

[Sassy Romano]

Correct. It is not bound to an armature with vertex weights to a bone.

[Beatricesss]

I see,Thanks.

[Chic Aeon]

Especially good for legacy avatars and this was the traditional way to attach mesh for a long time until mesh bodies moved into mainstream. 

 Unrigged mesh, if mod, can also be resized and adjusted which is very helpful for everyone.   Short hair for example is actually better IMHO if non-rigged as it can be resized easily for mesh heads (no alphas possible). Longer hair of course is better rigged to move with the body. 

 

[Nalates Urriah]

As others confirmed, yes. Mesh guns, swords, purses, and things that normally don't move with the body are now made with 'unrigged' mesh.

[WolfBaginski Bearsfoot]

Unrigged mesh can also be made with any mesh editor program that exports a Collada file. You don't have to use Blender.

I've done a few things with Wings3D. It's a lot less intimidating than Blender, but there are things it can't do. And there are specific add-ons for Blender to make rigged meshes for SL easier.

It's a good idea to go for Blender from the start, but if you already use something else you don't have to change. Blender will import many file formats so it's worth having for that.