Corrects an error in dual_quaternion.point_to_dual_quaternion.

PiperOrigin-RevId: 413506277

Author: G4G

tensorflow_graphics/geometry/transformation/dual_quaternion.py

@@ -454,8 +454,8 @@ def point_to_dual_quaternion(
 
     return tf.concat(
         (ones_vector,
-         tf.zeros_like(point),
-         ones_vector,
+         tf.zeros(tf.concat((tf.shape(point)[0:-1], [4]), -1),
+                  dtype=point.dtype),
          point), -1)
 
 

tensorflow_graphics/geometry/transformation/tests/dual_quaternion_test.py

@@ -388,11 +388,11 @@ def test_point_to_dual_quaternion_preset(self):
     dual_quaternions = dual_quaternion.point_to_dual_quaternion(points)
 
     ones_vector = tf.ones_like(points)[..., 0]
-    zeros_vector = tf.zeros_like(points)
+    zeros_vector = tf.zeros(tf.concat((tf.shape(points)[0:-1], [4]), -1),
+                            dtype=points.dtype)
 
     self.assertAllEqual(dual_quaternions[..., 0], ones_vector)
-    self.assertAllEqual(dual_quaternions[..., 1:4], zeros_vector)
-    self.assertAllEqual(dual_quaternions[..., 4], ones_vector)
+    self.assertAllEqual(dual_quaternions[..., 1:5], zeros_vector)
     self.assertAllEqual(dual_quaternions[..., 5:8], points)