Strange CSG2 result when using ExtrudeShape as brushes

[Naznarok]

Shape extrusion test | Babylon.js Playground

Hello! Trying to use CSG2 with two ExtrudeShape meshes but getting strange result (Check playground). What am i doing wrong? If i use meshes created using createBox everything is working.

[Tricotou]

Hello

@Naznarok

What am i doing wrong?

Several things are wrong here :

• I believe you used sideOrientation: BABYLON.Mesh.DOUBLESIDE because of the render being weirdly open like so :
  
  
  
  In fact it’s due to the orientation. Reverse the points in the shape and it’s OK.
• Your shape is not closed, eventough it looks like it is. For example just push Y up a little bit on the 5th point and here is your shape :
  
  
  
  To solve this, what you wanna do is using 4 points instead (get rid of the final “double”) and use the param closeShape: true in the MeshBuilder.ExtrudeShape

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Babylon.js Playground

[Naznarok]

Thank you for your quick response and analysis!
Shape extrusion test | Babylon.js Playground