Create a new object mesh.package from an existing mesh

Hey kitkat,
Which version of Blender are you editing the mesh in? S4S installs the addon required to edit the cut numbers into 2.70. If you are editing in a different version of Blender than S4S is using, S4S will not be able to install the addon for you.

If you open Blender and check your addons in File > User Preferences and search for sims 4 studio in the addons tab: 

You should see 2 items and Sims 4 Studio Tools should be checked.  If it isn't, check it and click Save User Settings.

Glad it's working for you now

The step 17 result you got makes it look like you did not map the new mesh's shadow plane onto the blob sheet correctly. Sims 2 differs from Sims 4 (and Sims 3 which also uses the blob sheet) in that the shadow you see behind a wall item, or under the object on a surface item, is made from a single plane that is mapped onto what has come to be known as EA's blob sheet. It looks like this:



The dark parts are the shadow areas on an alpha. Any mesh you give the shadow plane's cut number to will end up getting mapped onto this sheet no matter what you do. At least in Sims 3 it was like that. People tried to use a custom shadow image but you ended up on the blob sheet. You can make shadows that are simple or you can add additional planes and make more complex shadows like the one I did for the love sculpture I made.

In your picture it looks like your shadow plane map is occupying a good deal of the blob sheet instead of being centered over one of the small shadow blobs.

The painting mesh itself may be mapped correctly but you still have EA's texture there so I can't tell. Have you tried importing your painting's texture to see how that will look?

thanks orangemittens for the fast reply. and sorry for my bad english that make u didn't get it. what i mean by the sit style is a sitting position.
here's the original EA's default chair rig & sitting position:


i tried edit the rig just for my curiosity to see what will happen, but when imported to the game, there's nothing changes, still has the default sitting position. is it impossible yet to edit the rig? or i did something wrong with it?
here's the edited rig, i made it to move the sim's feet out enough from the default feet's postition, n i tried too to not move forward the very bottom one, but still didn't change :


ah i'm almost forgot, i noticed that every objects have a various texture map size not likely on clothes map 1024x2048. Is there no limitation for the texture map size that we should use? That would be great if we can make a bigger map for a great detail, although it'll impact the packages file size. thanks.

serenagarith use shift and select all the parts that you want as a single mesh with group 1 as the last one then join them. Make sure that if they have a uv map it is named identically on each one before joining.

Hello to all.  It's been awhile since I've tried to create anything, and I'm not sure if I have the patience to learn all of these great tutorials that OM has created for us newbie meshers but I do at least want to try.  While reading the treads here I came across the post saying that I needed Blender 2.70. for the 2 S4S addons to appear/install into Blender.  So if I understand correctly Blender 2.72 will not install the 2 addons that I need?  Here are some screenshots of what I have.



Thanks!!