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76 lines
1.9 KiB
Python
76 lines
1.9 KiB
Python
"""
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Test the ray classes.
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"""
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import pytest
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import torch
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from nerfstudio.cameras.rays import Frustums
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def test_frustum_get_position():
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"""Test position calculation"""
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origin = torch.Tensor([0, 1, 2])[None, ...]
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direction = torch.Tensor([0, 1, 0])[None, ...]
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frustum_start = torch.Tensor([2])[None, ...]
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frustum_end = torch.Tensor([3])[None, ...]
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target_position = torch.Tensor([0, 3.5, 2])[None, ...]
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frustum = Frustums(
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origins=origin,
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directions=direction,
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starts=frustum_start,
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ends=frustum_end,
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pixel_area=torch.ones((1, 1)),
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)
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positions = frustum.get_positions()
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assert positions == pytest.approx(target_position, abs=1e-6)
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def test_frustum_get_gaussian_blob():
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"""Test gaussian blob calculation"""
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frustum = Frustums(
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origins=torch.ones((5, 3)),
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directions=torch.ones((5, 3)),
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starts=torch.ones((5, 1)),
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ends=torch.ones((5, 1)),
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pixel_area=torch.ones((5, 1)),
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)
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gaussian_blob = frustum.get_gaussian_blob()
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assert gaussian_blob.mean.shape == (5, 3)
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assert gaussian_blob.cov.shape == (5, 3, 3)
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def test_frustum_apply_masks():
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"""Test masking frustum"""
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frustum = Frustums(
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origins=torch.ones((5, 3)),
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directions=torch.ones((5, 3)),
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starts=torch.ones((5, 1)),
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ends=torch.ones((5, 1)),
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pixel_area=torch.ones((5, 1)),
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)
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mask = torch.tensor([False, True, False, True, True], dtype=torch.bool)
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frustum = frustum[mask]
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assert frustum.origins.shape == (3, 3)
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assert frustum.directions.shape == (3, 3)
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assert frustum.starts.shape == (3, 1)
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assert frustum.ends.shape == (3, 1)
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assert frustum.pixel_area.shape == (3, 1)
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def test_get_mock_frustum():
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"""Test creation of mock frustum"""
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Frustums.get_mock_frustum()
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if __name__ == "__main__":
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test_frustum_get_gaussian_blob()
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