Custom Hair has tiny triangles in CAS

(I deleted a whole bunch of text which isn't necessary anymore)

As for the triangles, I know normal problems when I see them, in blender, the normal solid shade would be darker in some areas, so it can't be that, nor doubles (removing them only removed 6 vertices), so hopefully someone else can shed light on that problem. But getting the hair texture to look better is my main focus.

EDIT: I decided to look at custom hair that other people have made, such as NewSea's. To my surprise, there it is, hair texture size; 2048x4096 i.imgur.com/uyKlEQk.png I know exactly what to do to get it that way, :3 it may not be as great as the original, which is still twice as big, but it beats blurry hair at a low 512x512 corner. Now to fix the triangles problem...I still need help with that, if anyone else knows.

Also, since making the textures now bigger, it looks quite alright in Blender now,

:D i.imgur.com/ZW8cfRX.png

But for some unknown reason, in S4S, it still looks like the older hair texture, even though I loaded the newer texture (which is now 2048x4096, and the mesh, because I had to make sure it would load in blender the new texture, because I renamed it)

i.imgur.com/Lja9gBB.png

And in-game again, i.imgur.com/nL3MOAh.png I can't tell if in-game looks any better, because of the triangles, also notice the strange transparency with the blue bow, :( I hope someone can help!

Hi frosty177 welcome to the forum! First, in your blender file your mesh is not tessellated (not made of triangles). This is the reason you have the little triangles on your mesh in the game. It needs to be tessellated (made of triangles) for it to work properly. The keyboard shortcut is CTRL + T. Also while inspecting the mesh I noticed that there are a couple holes in the mesh for one of the hat cuts (s4studio_mesh_1). You should also check out THIS tutorial if you run into any transparency issues.

I think the triangles are a normals / smoothing problem.

What happens is that, rather than sharing a vertex normal, your polygons have separate vertex normals. The game then smooths each polygon individually (i.e. determines how the light hits each polygon), rather than smoothing all polygons together. What I think is happening to your mesh is: you see your triangles because they are not smoothed together, making their individual edges visible. I ran into the exact same issue on a mesh that was smoothed that should have had hard edges instead.

Check to see if you have any split edges, and check for any overlapping vertices. If you find any of these, weld them together. A hair mesh needs to be 1 object with 0 overlapping components to smooth properly.

3D software has many ways in which you can regulate how an object is smoothed when it renders. This is why, if your object is set to smooth, or you applied your smoothing groups properly, it will look perfect outside of the game. This information, however, does not translate to the game. The games uses information from vertex/edge/face normals to determine smoothing. If two faces share their edges and vertices, those faces are smoothed together because they share a normal. If two faces each have their separate edges and vertices, then their edge becomes visible as each face is smoothed differently to their own normal.