[SOLVED] Mesh won't show up in S4S

Hi. Yes, cloning a shirt ( bra, tank top ) would be better, but since you are making it for yourself only, you do not need to worry how it will behave on other people's pcs, so you can clone any accessory that has the same number of meshgroup
And for that reason it is not necessary to make lods manually.

no, i'm saying that they do not need to bother making good quality lods because this is not their item, they will not be sharing it. They can just delete the dress+body from other lods or decimate this one.
And about uvs, if the scarf will conflict with the outfit they want to put it on, it makes sense to re-do them and textures. If not, then there is no need for a complete beginner to learn this to make one scarf.

You need to install blender 2.76 because s4s does not support blender 3.0.
- after installing 2.76, in s4s setting change blender path to the location where 2.76 is installed;
- close s4s and blender;
- open s4s again, click on My projects, choose the file you want to edit;
- press Shift Ctrl C, copy-paste "studio.exportall". This will create a folder with all textures and blend files;
- open the first blend file, select s4studio_mesh_0, in 3d view press TAB to switch to the edit mode;
- select everything with A, in uv editor click on the image icon and choose the Diffuse map;
- enable sync. Press A to deselect everything. Holding Ctrl, LMB-click-and-drag to select uv islands of the scarf;

- press Ctrl I to invert the selection, in 3d view press Delete and choose Faces;
- save the file;
- repeat the same for all lods;
- open each texture in the image editing software of your choice, select the textures of the dress, delete them, save.
- clone a bra, in the Categories tab change it to Necklace;
- import all lods and textures.

Ok so I tried to follow everything above but the only thing I couldn't do is open each texture in image editor -- the .blender file won't open in either photoshop 2021 or current Gimp version. So I just exported the texture instead and edited that. But the outline of the dress wouldn't go away even when I deleted it -- and you can see the white parts from where I tried to delete it. Any advice?

ibb.co/jhd4JPJ
ibb.co/gMh2CCC

Yes -- so I layered via cut and deleted those layers. The background was empty (that pixelated looking backdrop) so I did not flood with color.
The issue was I accidentally saved the texture as DDS instead of PNG -- that was my bad since I already know how to recolor cc and that's recolor 101. It was 1am and I was losing my mind.

ANYWAYS It's done

ibb.co/0D1yPKg

THANK YOUUUUU!!

-- now I gotta do this for 10 other swatches haha (that I know how to do, no worries!)

To answer your earlier questions:

a) Studio supports versions 2.70 - 2.79 (I use 2.78 with no problems)
b) Face mode and edge select mode are on the bottom of both the 3D window and the UV editor.
c) When you deleted everything the scarf should have been all that was left, so yes, that was normal for this situation. The intention was to isolate the scarf so you could clone whatever you were supposed to clone, open the clone, then append the scarf into it and then delete everything except the scarf and the rig.
d) A rig is a skeleton and it's needed for animation. Everything in the game contains a rig, even things that are static (don't know why). When you assign weights (or bones, or joints...same thing; different terms) you are assigning parts of your mesh to parts of the skeleton (the rig).
e) The outliner is the section of Blender where all of the contents of your scene are listed. It's in the upper right corner.
f) Many times, particularly ones exported from Studio, the mesh will be made up of triangles (tris) and it's easier to delete edge loops if the polygons have been turned into squares (quads).
h) To put a checkmark next to Compare UVs press T to open the side panel before using Alt + J. You'll see Compare UVs on the bottom of the panel after you've pressed Alt + J. The screenshot I shared shows where it is.
i) Edge loops are edges that loop all around the mesh. If you hold Alt while selecting an edge sometimes you'll see that an entire loop gets selected. If there are breaks in the loops, however, such as two vertices on top of each other that are not merged, or if a face is missing, the loop won't encircle the entire mesh. Sometimes, an entire edge loop won't be selected automatically if there's a drastic difference in the mesh's shape somewhere such as where the mesh bends in the screenshot below. You can see that not all of the edges were selected in that part. You'd have to manually select the rest of the edge loop in that scenario.

Here's an example of edge loops: