If you want the object to look more like the one on the right in the below image, do the following:
Steps to make an object smooth in Blender
Select the area that you want to make smooth
Go to Mesh.
- Go to Faces.
- Select Shade Smooth, you may have to scroll down to see this option.
Once you’ve selected that option, the area or object that you previously selected should now be smooth like the below image.
To make objects like they were before, select Shade Flat.
If you have any questions about the above process let me know!
Alternatively: If this wasn’t the right answer to your question and you were referencing the gaps in your model this could mean that the normals are inverted on the object.
This is identifed in Blender by faces that look like this:
If your model looks like this in Blender (green are faces that are inverted):
But the below in Roblox, this is the issue.
Fixing inverted normals
Method 1: Recalculate outside.
- Select your object.
- Go to Mesh. (Alternatively from this point you can press Ctrl+N and skip to #4.)
Go to Normals and then select Recalculate Outside.
Your model should look like this, if this was the issue.
If your model looks like this in Blender, great!
This likely means that it’ll be the same in Roblox once you export it.
If it wasn’t then the issue you’re encountering let me know and I can explore some other options that are much less common.
If none of the solutions above worked for you or you need help understanding anything, let me know and I can explore some other issues that are much less common.