Update 10/15/2021: This tutorial has been updated for Blender 2.91. My apologies if there was any confusion! If you have an older version of Blender, you may try using the old version of this tutorial in the dropdown below.
Old Tutorial (Using 2.82.7)
Not too long ago, I was attempting to export a mesh I made in Blender to Roblox Studio. But whenever I put the file into the MeshPart, it wouldn’t work.
After doing some testing, I finally figured out how to do it and I was able to import my smooth mesh into Blender (or maybe it’s because I spent that whole month making GFXs instead of 3D modeling).
As someone who started getting into Blender from scratch about a month ago, I would think that other people like me would also have this problem.
That is why I have created this very simple and short tutorial on how to export smooth blender meshes and import them to Studio properly.
The Wrong Way Of Doing It
At first, I was trying to export these meshes by selecting the mesh, then right-clicking. Then I’d click on “Shape Smooth” and then attempt to export it.
However, after many attempts at adding the obj file into the MeshPart in Roblox Studio, it would not work.
What happened was I’d add the mesh, but the MeshPart wouldn’t change to my desired mesh. It would just stay as it was when I first added it in.
So, doing it this way is NOT how you should do it
The Right Way Of Doing It
After some digging, I found that there’s actually a setting in “Edit Mode.”
To access edit mode, press Ctrl + Tab (or Command + Tab for mac users). Your mesh should become highlighted with an orange tint around it. Similar to this:
If you don't see those orange dots and lines, do this:
Change your viewport shading to “Wireframe.”
This can be done by using the buttons at the top right and clicking on the one all the way to the left, which literally looks like a wireframe circle.
Then, click and drag to select the whole mesh and all its vertices.
Go back into “Solid” mode by clicking on the fully white sphere.
Now, you should see tabs that look like this:
If not, then that means you’re out of edit mode, so click Ctrl/Cmd + Tab to get back into edit mode.
Click on Mesh > Shading > Smooth Faces.
And there you go! You can exit out of edit mode (if you want) and export your obj file from Blender to Studio properly!
This isn’t a tutorial on how to use Blender, so therefore I won’t be answering questions like “How do you make a mesh” or “How do you export an obj.” Those are questions you can easily just look up yourself.
The Right Way Of Smoothing Your Meshes
First, you’ll want to go into edit mode
To access edit mode, press Ctrl + Tab (or Command + Tab for mac users). You should see a bunch of orange dots and lines on your mesh, as shown below:
Make sure all your vertexes are highlighted before proceeding. To do this, you’ll want to change your viewport shading. To do this, go to the four balls near the top right of your layout window. Select the one closest to the left. This is referred to as wireframe mode and can be used to select vertices that are behind the object that the camera wouldn’t normally see in solid mode.
Once selected, your mesh should look almost invisible like so:
Then just click and drag over your entire mesh, and then your vertexes are all selected.
Now, to the top left of your layout window, you should see that you’re in edit mode, and you should see multiple buttons like “View,” “Select,” “Add,” etc:
With all your vertexes selected, click on Face > Shade Smooth.
And there you go! You can exit out of Edit Mode and export your file from Blender to Studio!
