[numpy] Fix users of NumPy APIs that are removed in NumPy 2.0.

This change migrates users of APIs removed in NumPy 2.0 to their recommended replacements (https://numpy.org/doc/stable/numpy_2_0_migration_guide.html).

This change replaces uses of `np.math`, which is a deprecated alias for the builtin `math` module, with the builtin `math` module. `np.math` is removed in NumPy 2.0.

PiperOrigin-RevId: 658227973

tensorflow_graphics/rendering/opengl/tests/math_test.py

@@ -474,7 +474,7 @@ def test_perspective_correct_interpolation_preset(self):
     camera_origin = np.array((0.0, 0.0, 0.0))
     camera_up = np.array((0.0, 1.0, 0.0))
     look_at_point = np.array((0.0, 0.0, 1.0))
-    fov = np.array((90.0 * np.math.pi / 180.0,))
+    fov = np.array((90.0 * math.pi / 180.0,))
     bottom_left = np.array((0.0, 0.0))
     image_size = np.array((501.0, 501.0))
     near_plane = np.array((0.01,))
@@ -616,7 +616,7 @@ def test_perspective_correct_barycentrics_preset(self):
     camera_origin = np.array((0.0, 0.0, 0.0))
     camera_up = np.array((0.0, 1.0, 0.0))
     look_at_point = np.array((0.0, 0.0, 1.0))
-    fov = np.array((90.0 * np.math.pi / 180.0,))
+    fov = np.array((90.0 * math.pi / 180.0,))
     bottom_left = np.array((0.0, 0.0))
     image_size = np.array((501.0, 501.0))
     near_plane = np.array((0.01,))

tensorflow_graphics/rendering/opengl/tests/rasterizer_op_test.py

@@ -17,12 +17,13 @@
 from __future__ import division
 from __future__ import print_function
 
+import math
+
 from absl.testing import parameterized
 import numpy as np
 import six
 from six.moves import range
 import tensorflow as tf
-
 from tensorflow_graphics.geometry.transformation import look_at
 from tensorflow_graphics.rendering.camera import perspective
 from tensorflow_graphics.rendering.opengl import rasterization_backend
@@ -122,7 +123,7 @@ def test_rasterize(self):
     camera_origin = (0.0, 0.0, 0.0)
     camera_up = (0.0, 1.0, 0.0)
     look_at_point = (0.0, 0.0, 1.0)
-    fov = (60.0 * np.math.pi / 180,)
+    fov = (60.0 * math.pi / 180,)
     near_plane = (1.0,)
     far_plane = (10.0,)
     batch_shape = tf.convert_to_tensor(

tensorflow_graphics/rendering/tests/rasterization_test_utils.py

@@ -13,12 +13,12 @@
 # limitations under the License.
 """Util functions for rasterization tests."""
 
+import math
 import os
 import random
 
 import numpy as np
 import tensorflow as tf
-
 from tensorflow_graphics.geometry.transformation import look_at
 from tensorflow_graphics.rendering.camera import perspective
 from tensorflow_graphics.util import shape
@@ -39,7 +39,7 @@ def make_perspective_matrix(image_width=None, image_height=None):
   resulting image will be equal to the baseline image.
   """
 
-  field_of_view = (40 * np.math.pi / 180,)
+  field_of_view = (40 * math.pi / 180,)
   near_plane = (0.01,)
   far_plane = (10.0,)
   return perspective.right_handed(field_of_view,