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join_meshes_as_batch

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Summary: rename join_meshes to join_meshes_as_batch.

Reviewed By: nikhilaravi

Differential Revision: D20671293

fbshipit-source-id: e84d6a67d6c1ec28fb5e52d4607db8e92561a4cd
This commit is contained in:
Jeremy Reizenstein 2020-03-30 11:25:40 -07:00 committed by Facebook GitHub Bot
parent 27eb791e2f
commit b64fe51360
4 changed files with 22 additions and 22 deletions
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4
pytorch3d/io/obj_io.py
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@ -12,7 +12,7 @@ import numpy as np
import torch
from fvcore.common.file_io import PathManager
from PIL import Image
from pytorch3d.structures import Meshes, Textures, join_meshes
from pytorch3d.structures import Meshes, Textures, join_meshes_as_batch
def _make_tensor(data, cols: int, dtype: torch.dtype) -> torch.Tensor:
@ -249,7 +249,7 @@ def load_objs_as_meshes(files: list, device=None, load_textures: bool = True):
mesh_list.append(mesh)
if len(mesh_list) == 1:
return mesh_list[0]
return join_meshes(mesh_list)
return join_meshes_as_batch(mesh_list)
def _parse_face(

2
pytorch3d/structures/__init__.py
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@ -1,6 +1,6 @@
# Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.
from .meshes import Meshes, join_meshes
from .meshes import Meshes, join_meshes_as_batch
from .pointclouds import Pointclouds
from .textures import Textures
from .utils import list_to_packed, list_to_padded, packed_to_list, padded_to_list

26
pytorch3d/structures/meshes.py
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@ -1346,7 +1346,7 @@ class Meshes(object):
return Meshes(verts=new_verts_list, faces=new_faces_list, textures=tex)
def join_meshes(meshes: List[Meshes], include_textures: bool = True):
def join_meshes_as_batch(meshes: List[Meshes], include_textures: bool = True):
"""
Merge multiple Meshes objects, i.e. concatenate the meshes objects. They
must all be on the same device. If include_textures is true, they must all
@ -1363,8 +1363,8 @@ def join_meshes(meshes: List[Meshes], include_textures: bool = True):
"""
if isinstance(meshes, Meshes):
# Meshes objects can be iterated and produce single Meshes. We avoid
# letting join_meshes(mesh1, mesh2) silently do the wrong thing.
raise ValueError("Wrong first argument to join_meshes.")
# letting join_meshes_as_batch(mesh1, mesh2) silently do the wrong thing.
raise ValueError("Wrong first argument to join_meshes_as_batch.")
verts = [v for mesh in meshes for v in mesh.verts_list()]
faces = [f for mesh in meshes for f in mesh.faces_list()]
if len(meshes) == 0 or not include_textures:
@ -1372,49 +1372,49 @@ def join_meshes(meshes: List[Meshes], include_textures: bool = True):
if meshes[0].textures is None:
if any(mesh.textures is not None for mesh in meshes):
raise ValueError("Inconsistent textures in join_meshes.")
raise ValueError("Inconsistent textures in join_meshes_as_batch.")
return Meshes(verts=verts, faces=faces)
if any(mesh.textures is None for mesh in meshes):
raise ValueError("Inconsistent textures in join_meshes.")
raise ValueError("Inconsistent textures in join_meshes_as_batch.")
# Now we know there are multiple meshes and they have textures to merge.
first = meshes[0].textures
kwargs = {}
if first.maps_padded() is not None:
if any(mesh.textures.maps_padded() is None for mesh in meshes):
raise ValueError("Inconsistent maps_padded in join_meshes.")
raise ValueError("Inconsistent maps_padded in join_meshes_as_batch.")
maps = [m for mesh in meshes for m in mesh.textures.maps_padded()]
kwargs["maps"] = maps
elif any(mesh.textures.maps_padded() is not None for mesh in meshes):
raise ValueError("Inconsistent maps_padded in join_meshes.")
raise ValueError("Inconsistent maps_padded in join_meshes_as_batch.")
if first.verts_uvs_padded() is not None:
if any(mesh.textures.verts_uvs_padded() is None for mesh in meshes):
raise ValueError("Inconsistent verts_uvs_padded in join_meshes.")
raise ValueError("Inconsistent verts_uvs_padded in join_meshes_as_batch.")
uvs = [uv for mesh in meshes for uv in mesh.textures.verts_uvs_list()]
V = max(uv.shape[0] for uv in uvs)
kwargs["verts_uvs"] = struct_utils.list_to_padded(uvs, (V, 2), -1)
elif any(mesh.textures.verts_uvs_padded() is not None for mesh in meshes):
raise ValueError("Inconsistent verts_uvs_padded in join_meshes.")
raise ValueError("Inconsistent verts_uvs_padded in join_meshes_as_batch.")
if first.faces_uvs_padded() is not None:
if any(mesh.textures.faces_uvs_padded() is None for mesh in meshes):
raise ValueError("Inconsistent faces_uvs_padded in join_meshes.")
raise ValueError("Inconsistent faces_uvs_padded in join_meshes_as_batch.")
uvs = [uv for mesh in meshes for uv in mesh.textures.faces_uvs_list()]
F = max(uv.shape[0] for uv in uvs)
kwargs["faces_uvs"] = struct_utils.list_to_padded(uvs, (F, 3), -1)
elif any(mesh.textures.faces_uvs_padded() is not None for mesh in meshes):
raise ValueError("Inconsistent faces_uvs_padded in join_meshes.")
raise ValueError("Inconsistent faces_uvs_padded in join_meshes_as_batch.")
if first.verts_rgb_padded() is not None:
if any(mesh.textures.verts_rgb_padded() is None for mesh in meshes):
raise ValueError("Inconsistent verts_rgb_padded in join_meshes.")
raise ValueError("Inconsistent verts_rgb_padded in join_meshes_as_batch.")
rgb = [i for mesh in meshes for i in mesh.textures.verts_rgb_list()]
V = max(i.shape[0] for i in rgb)
kwargs["verts_rgb"] = struct_utils.list_to_padded(rgb, (V, 3))
elif any(mesh.textures.verts_rgb_padded() is not None for mesh in meshes):
raise ValueError("Inconsistent verts_rgb_padded in join_meshes.")
raise ValueError("Inconsistent verts_rgb_padded in join_meshes_as_batch.")
tex = Textures(**kwargs)
return Meshes(verts=verts, faces=faces, textures=tex)

12
tests/test_obj_io.py
View File

@ -8,7 +8,7 @@ from pathlib import Path
import torch
from common_testing import TestCaseMixin
from pytorch3d.io import load_obj, load_objs_as_meshes, save_obj
from pytorch3d.structures import Meshes, Textures, join_meshes
from pytorch3d.structures import Meshes, Textures, join_meshes_as_batch
from pytorch3d.utils import torus
@ -523,10 +523,10 @@ class TestMeshObjIO(TestCaseMixin, unittest.TestCase):
self.assertTrue(aux.material_colors is None)
self.assertTrue(aux.texture_images is None)
def test_join_meshes(self):
def test_join_meshes_as_batch(self):
"""
Test that join_meshes and load_objs_as_meshes are consistent with single
meshes.
Test that join_meshes_as_batch and load_objs_as_meshes are consistent
with single meshes.
"""
def check_triple(mesh, mesh3):
@ -575,7 +575,7 @@ class TestMeshObjIO(TestCaseMixin, unittest.TestCase):
)
tex = Textures(verts_rgb=vert_tex[None, :])
mesh_rgb = Meshes(verts=[verts], faces=[faces], textures=tex)
mesh_rgb3 = join_meshes([mesh_rgb, mesh_rgb, mesh_rgb])
mesh_rgb3 = join_meshes_as_batch([mesh_rgb, mesh_rgb, mesh_rgb])
check_triple(mesh_rgb, mesh_rgb3)
teapot_obj = DATA_DIR / "teapot.obj"
@ -588,7 +588,7 @@ class TestMeshObjIO(TestCaseMixin, unittest.TestCase):
self.assertClose(mix_mesh.verts_list()[1], teapot_verts)
self.assertClose(mix_mesh.faces_list()[1], teapot_faces)
cow3_tea = join_meshes([mesh3, mesh_teapot], include_textures=False)
cow3_tea = join_meshes_as_batch([mesh3, mesh_teapot], include_textures=False)
self.assertEqual(len(cow3_tea), 4)
check_triple(mesh_notex, cow3_tea[:3])
self.assertClose(cow3_tea.verts_list()[3], mesh_teapot.verts_list()[0])