I am trying to apply the SubdivisionModifier to a mesh exported from Blender with the Three.js JSON exporter (Vertices, Faces and Normals only)
It looks like this in Blender
And in my browser it’s rendered like this (the colour / opacity is normal, and the object is not intersecting another object in the scene)
I don’t understand why there are these saw-like protuberances.
I have checked that the mesh is clean and that it subdivides well in Blender, even after triangulating the faces.
It is an extract from a full body mesh which is subdivided correctly by Three.js’ SubdivisionModifier.
When I subdivide the mesh in Blender, apply the modifier and import the higher res mesh in Three.js, it is rendered correctly.
Do you have any idea of what is happening ?