diff --git a/cloth3d/read.py b/cloth3d/read.py
index 702f5fa..03ab45c 100644
--- a/cloth3d/read.py
+++ b/cloth3d/read.py
@@ -57,11 +57,11 @@ class DataReader:
     - V: human mesh vertices
     - F: mesh faces
     """
-    def read_human(self, sample, frame, trans, zrot):
+    def read_human(self, sample, frame, zrot, use_trans=True):
         # SMPL parameters
         gender, pose, shape, trans = self.read_smpl_params(sample, frame)
         # Compute SMPL
-        V, J = self.smpl[gender].set_params(pose=pose, beta=shape, trans=trans)
+        V, J = self.smpl[gender].set_params(pose=pose, beta=shape, trans=trans if use_trans else None)
         V -= J[0:1]
         # Apply rotation on z-axis
         zRot = zRotMatrix(zrot)