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Summary: Updates to the Renderer to enable barycentric clipping. This is important when there is blurring in the rasterization step. Also added support for flat shading. Reviewed By: jcjohnson Differential Revision: D19934259 fbshipit-source-id: 036e48636cd80d28a04405d7a29fcc71a2982904
25 lines
825 B
Python
25 lines
825 B
Python
#!/usr/bin/env python3
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# Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.
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import unittest
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import torch
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from pytorch3d.renderer.mesh.utils import _clip_barycentric_coordinates
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class TestMeshRenderingUtils(unittest.TestCase):
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def test_bary_clip(self):
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N = 10
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bary = torch.randn(size=(N, 3))
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# randomly make some values negative
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bary[bary < 0.3] *= -1.0
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# randomly make some values be greater than 1
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bary[bary > 0.8] *= 2.0
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negative_mask = bary < 0.0
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positive_mask = bary > 1.0
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clipped = _clip_barycentric_coordinates(bary)
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self.assertTrue(clipped[negative_mask].sum() == 0)
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self.assertTrue(clipped[positive_mask].gt(1.0).sum() == 0)
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self.assertTrue(torch.allclose(clipped.sum(dim=-1), torch.ones(N)))
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