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has_verts_normals for Meshes

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Summary: Add ability to ask a Meshes if it already has normals. If it does, then requesting normals will not trigger a calculation. MeshesFormatInterpreters will therefore be able to decide whether to save normals.

Reviewed By: theschnitz, nikhilaravi

Differential Revision: D27765261

fbshipit-source-id: 7c87dbf999d5616d20f5eb2c01039ee5ff65a830
This commit is contained in:
Jeremy Reizenstein
2021-05-04 05:35:24 -07:00
committed by Facebook GitHub Bot
parent 2bbca5f2a7
commit 66b97a0c28
2 changed files with 11 additions and 1 deletions
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6
pytorch3d/structures/meshes.py
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@@ -732,6 +732,12 @@ class Meshes(object):
)
return self._verts_padded_to_packed_idx
def has_verts_normals(self) -> bool:
"""
Check whether vertex normals are already present.
"""
return self._verts_normals_packed is not None
def verts_normals_packed(self):
"""
Get the packed representation of the vertex normals.