Help How to build a goal net mesh to use with Obi?

[josemendez]

Hello there, so I bought Obi Cloth last week and decided to implement a proper goal net with it.

It happens that my goal net model consists of 4 planes linked each other, which no planes on 2 of its sides and normals flipped inwards.

Considering that my explanation might not be so clear, here's a small clip showing the model, the black sides represent the backfaces:

https://imgur.com/a/wljGT2P

Not sure if this is what the documentation meant by non-manifold mesh, probably yes, because I can't assign this mesh to a standard cloth blueprint...

So considering that my model isn't compatible, how should I model a goal net then, because this is my only idea about such an object should be built...

Hi!

Here each edge is shared by more than 2 faces, so this is by definition a non-manifold mesh and can't be simulated (as it can't exist in the real world).

There's no need to duplicate all faces and flip their normals. It's simpler and cheaper to just disable backface culling in your material, or use two materials (one for side A, one for side B, this is what the sample scenes in Obi do) or use a two-pass shader.