Hi, first of all, as a disclaimer, I’m posting this on behalf of one of my friends who is not a member of the dev forum. This might be a simple fix but he is somewhat new at 3D modeling in the context of Roblox.
He is trying to make a flag model for one of his upcoming games. It looks like this:
As you can see from the image. One side of the model is clearly visible, but the other side has no visible flag. This occurred after he significantly reduced the poly-count of the model, so I’m thinking that he might have done something wrong with that. He uses 3ds Max for modeling. He says the model appears fine inside of his modeling tool, but as soon as he uploads it to roblox, one of the sides of the flag goes away.
This happens because Roblox, like almost every other game engine, only renders one side of a mesh’s faces because you don’t need a back face for the majority of meshes. It increases performance greatly compared to rendering two sides of a face. You can solve this for a flat mesh by just making another poly directly on the back of the first.