correct final rotation

convert.py

@@ -420,6 +420,12 @@ class Converter(nn.Module):
         vertices = (self.v + self.deform).detach().cpu().numpy()
         triangles = self.f.detach().cpu().numpy()
         vertices, triangles = clean_mesh(vertices, triangles, remesh=False)
+
+        rotation_matrix = np.array(
+            [[1, 0, 0], [0, -1, 0], [0, 0, -1]], dtype=np.float32
+        )
+        vertices = vertices @ rotation_matrix.T
+
         self.v = torch.from_numpy(vertices).contiguous().float().to(self.device)
         self.f = torch.from_numpy(triangles).contiguous().int().to(self.device)
         self.deform = nn.Parameter(torch.zeros_like(self.v).to(self.device))