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Hey everyone! I'm trying to extract VerticeData from a SubMesh to create an other mesh but i always failed. I want to extract indices, positions, normals and uvs for the moment: Indices: var result = new VertexData(); var indices = subMesh.getMesh().getIndices(); for (var index = subMesh.indexStart; index < subMesh.indexStart + subMesh.indexCount; index++) { result.indices.push(indices[index]); } Positions and normals: var positions = subMesh.getMesh().getVerticesData(BABYLON.VertexBuffer.PositionKind, copyWhenShared); var vertex; for (var index = subMesh.indexStart; index < subMesh.indexStart + subMesh.indexCount; index+=3) { vertex = new BABYLON.Vector3.TransformCoordinates(new BABYLON.Vector3(positions[index], positions[index + 1], positions[index + 2]), worldMatrix); result.positions.push(vertex.x); result.positions.push(vertex.y); result.positions.push(vertex.z); } Anyone to help me?