Hello, I am new to Blender, and I decided to make my first model. After it was done, I exported it and imported it into Roblox Studio. However, I noticed that all the parts I copied and mirrored in Blender (Ctrl + M) became half-invisible in Roblox Studio, and I don’t know how to fix it.
What usually works best for me is by selecting all, (A key by default,) Object > Transform > All Transforms, (CTRL A > Transform > All Transforms works too)
then do your typical process of importing your mesh, and make them double sided on Roblox Studios in the properties tab for your Mesh
If you want to do a longer route, you can do @VegetationBush’s guide which flips orientation for the faces, but your mesh faces probably wont be as easy as the post makes it out to be.
Like the guide says, the red meshes are looking “inside” the mesh. The blue is what will show on the outside, so just check what your mesh looks like and decide what direction you want them to be facing.