Summary:
# Background
There is an unstable error during training (it can happen after several minutes or after several hours).
The error is connected to `torch.det()` function in `_check_valid_rotation_matrix()`.
if I remove the function `torch.det()` in `_check_valid_rotation_matrix()` or remove the whole functions `_check_valid_rotation_matrix()` the error is disappeared (D29555876).
# Solution
Replace `torch.det()` with manual implementation for 3x3 matrix.
Reviewed By: patricklabatut
Differential Revision: D29655924
fbshipit-source-id: 41bde1119274a705ab849751ece28873d2c45155
Summary:
# Make `transform3d.py` a little bit better (performance and code quality)
## 1. Add decorator `torch.no_grad()` to the function `_check_valid_rotation_matrix()`
Function `_check_valid_rotation_matrix()` is needed to identify errors during forward pass only, it's not used for gradients.
## 2. Replace two calls `to` with the single one
Reviewed By: bottler
Differential Revision: D29656501
fbshipit-source-id: 4419e24dbf436c1b60abf77bda4376fb87a593be
Summary:
Context: in the code we are releasing with CO3D dataset, we use `cuda()` on TensorProperties like Pointclouds and Cameras where we recursively move batch to a GPU. It would be good to push it to a release so we don’t need to depend on the nightly build.
Additionally, I aligned the logic of `.to("cuda")` without device index to the one of `torch.Tensor` where the current device is populated to index. It should not affect any actual use cases but some tests had to be changed.
Reviewed By: bottler
Differential Revision: D29659529
fbshipit-source-id: abe58aeaca14bacc68da3e6cf5ae07df3353e3ce
Summary: An early-return test for gradient calculation did not include the opacity gradient calculation - hence would also return early without calculating gradients even if opacity gradients are required.
Reviewed By: bottler
Differential Revision: D29505684
fbshipit-source-id: 575e820b8f58b19476b2fe3288702806733e840b
Summary: This commit adds a new camera conversion function for OpenCV style parameters to Pulsar parameters to the library. Using this function it addresses a bug reported here: https://fb.workplace.com/groups/629644647557365/posts/1079637302558095, by using the PyTorch3D->OpenCV->Pulsar chain instead of the original direct conversion function. Both conversions are well-tested and an additional test for the full chain has been added, resulting in a more reliable solution requiring less code.
Reviewed By: patricklabatut
Differential Revision: D29322106
fbshipit-source-id: 13df13c2e48f628f75d9f44f19ff7f1646fb7ebd
Summary: Use rotation matrices for OpenCV / PyTorch3D conversions: this avoids hiding issues with conversions to / from axis-angle vectors and ensure new conversion functions have a consistent interface.
Reviewed By: bottler, classner
Differential Revision: D29634099
fbshipit-source-id: 40b28357914eb563fedea60a965dcf69e848ccfa
Summary: Fixes#514, so we don't assume user of the tutorial has access to utils.
Reviewed By: nikhilaravi
Differential Revision: D29557294
fbshipit-source-id: 10ac994be65df0822d3ee4e9d690189ff13074a2
Summary: Avoid using old xcode which CircleCI say is deprecated.
Reviewed By: patricklabatut
Differential Revision: D29538176
fbshipit-source-id: 1e2ae4845d42365c778536446958966bbecf188c
Summary: Enable this benchmark to be run on its own, like others.
Reviewed By: patricklabatut
Differential Revision: D29522846
fbshipit-source-id: c7b3b5c9a0fcdeeb79d8b2ec197684b4380aa547
Summary: solve and lstsq have moved around in torch. Cope with both.
Reviewed By: patricklabatut
Differential Revision: D29302316
fbshipit-source-id: b34f0b923e90a357f20df359635929241eba6e74
Summary: Deprecate the `so3_exponential_map()` function in favor of its alias `so3_exp_map()`: this aligns with the naming of `so3_log_map()` and the recently introduced `se3_exp_map()` / `se3_log_map()` pair.
Reviewed By: bottler
Differential Revision: D29329966
fbshipit-source-id: b6f60b9e86b2995f70b1fbeb16f9feea05c55de9
Summary: Add functionality to to save an `.obj` file with associated UV textures: `.png` image and `.mtl` file as well as saving verts_uvs and faces_uvs to the `.obj` file.
Reviewed By: bottler
Differential Revision: D29337562
fbshipit-source-id: 86829b40dae9224088b328e7f5a16eacf8582eb5
Summary: Annotate the (return type of the) following dunder functions across the codebase: `__init__()`, `__len__()`, `__getitem__()`
Reviewed By: nikhilaravi
Differential Revision: D29001801
fbshipit-source-id: 928d9e1c417ffe01ab8c0445311287786e997c7c
Summary:
Refactor of all functions to compute laplacian matrices in one file.
Support for:
* Standard Laplacian
* Cotangent Laplacian
* Norm Laplacian
Reviewed By: nikhilaravi
Differential Revision: D29297466
fbshipit-source-id: b96b88915ce8ef0c2f5693ec9b179fd27b70abf9
Summary: This diff implements the inverse of D28992470 (8006842f2a): a function to extract OpenCV convention camera parameters from a PyTorch3D `PerspectiveCameras` object. This is the first part of the new PyTorch3d<>OpenCV<>Pulsar conversion functions.
Reviewed By: patricklabatut
Differential Revision: D29278411
fbshipit-source-id: 68d4555b508dbe8685d8239443f839d194cc2484
Summary:
Get rid of pyre fixmes related to importing a native module:
- add stub file for the `_C` native extension to the internal typeshed
- add initial annotations to the new stub file
- remove the now unnecessary pyre ignores
Reviewed By: nikhilaravi
Differential Revision: D28929467
fbshipit-source-id: 6525e15c8f27215a3ff6f78392925fd0ed6ec2ac
Summary:
Github action to close issues/PRs that are not labelled with "enhancement" or "how-to" if they have not had any activity in 30 days.
Pull Request resolved: https://github.com/facebookresearch/pytorch3d/pull/721
Reviewed By: bottler
Differential Revision: D29309817
Pulled By: nikhilaravi
fbshipit-source-id: 039f6d4f29e9d04c01f59d145317a34ad75026a5
Summary: Add some more validation of a list of texture maps. Move the initialisation of maps_padded to a new function to reduce complexity.
Reviewed By: nikhilaravi
Differential Revision: D29263443
fbshipit-source-id: 153e262d2e9af21090570768020fca019e364024
Summary: The TexturesUV class supports an arbitrary number of channels. In one place in join_scene we unnecessarily assumed the usual value, 3.
Reviewed By: patricklabatut
Differential Revision: D29133477
fbshipit-source-id: de8eb15fdd55675da084634d9d99e2a3f4d35401
Summary: Comments in textures.py were inconsistent in describing the number of channels, sometimes C, sometimes D, sometimes 3. Now always C.
Reviewed By: patricklabatut
Differential Revision: D29263435
fbshipit-source-id: 7c1260c164c52852dc9e14d0e12da4cfb64af408
Summary:
Build for pytorch 1.9, and make it the only mac build. Not testing on cuda 11.1, because of annoying failures which are restricted to certain hardware.
Also update cuda driver in CI tests.
Reviewed By: patricklabatut
Differential Revision: D29302314
fbshipit-source-id: 78def378adb9d7aa287abdc5ac0af269e3ba3625
Summary: include_package_data does not work well in the presence of built extensions, and the OSS build hasn't been working for a few days since #593 was merged.
Reviewed By: patricklabatut
Differential Revision: D29302315
fbshipit-source-id: db7e46f8c4593743c3522087979592f9989c7c6b
Summary: Because rotations and (rotation) quaternions live on curved manifolds, it doesn't make sense to optimize them directly. Having a prominent option to require gradient on random ones may cause people to try, and isn't particularly useful.
Reviewed By: theschnitz
Differential Revision: D29160734
fbshipit-source-id: fc9e320672349fe334747c5b214655882a460a62
Summary:
Change the cow gltf loading test to validate the texture values and not to validate the renderer output because it has an unstable pixel.
Also a couple of lints.
Reviewed By: patricklabatut
Differential Revision: D29131260
fbshipit-source-id: 5e11f066a2a638588aacb09776cc842173ef669f
Summary: Conda build command can be very slow at resolving dependencies with PyTorch 1.8. I extended the timeout for this in the tests. Here do the same for the builds.
Reviewed By: patricklabatut
Differential Revision: D29131188
fbshipit-source-id: 554e694f0f8aa7509141016720b1e9019177b214
Summary: As noted in #710, save_ply was failing with some values of the faces tensor. It was assuming the faces were contiguous in using view() to change them. Here we avoid doing that.
Reviewed By: patricklabatut
Differential Revision: D29159655
fbshipit-source-id: 47214a7ce915bab8d81f109c2b97cde464fd57d8
Summary: Implements a conversion function between OpenCV and PyTorch3D cameras.
Reviewed By: patricklabatut
Differential Revision: D28992470
fbshipit-source-id: dbcc9f213ec293c2f6938261c704aea09aad3c90
Summary:
Improves so3 functions to make gradient computation stable:
- Instead of `torch.acos`, uses `acos_linear_extrapolation` which has finite gradients of reasonable magnitude for all inputs.
- Adds tests for the latter.
The tests of the finiteness of the gradient in `test_so3_exp_singularity`, `test_so3_exp_singularity`, `test_so3_cos_bound` would fail if the `so3` functions would call `torch.acos` instead of `acos_linear_extrapolation`.
Reviewed By: bottler
Differential Revision: D23326429
fbshipit-source-id: dc296abf2ae3ddfb3942c8146621491a9cb740ee
Summary:
Implements a backprop-safe version of `torch.acos` that linearly extrapolates the function outside bounds.
Below is a plot of the extrapolated acos for different bounds:
{F611339485}
Reviewed By: bottler, nikhilaravi
Differential Revision: D27945714
fbshipit-source-id: fa2e2385b56d6fe534338d5192447c4a3aec540c
Summary:
Fix small face issue for point_mesh distance computation.
The issue lies in the computation of `IsInsideTriangle` which is unstable and non-symmetrical when faces with small areas are given as input. This diff fixes the issue by returning `False` for `IsInsideTriangle` when small faces are given as input.
Reviewed By: bottler
Differential Revision: D29163052
fbshipit-source-id: be297002f26b5e6eded9394fde00553a37406bee
Summary: Small fix to `fit_textured_mesh.ipynb` tutorial due to a recent change in numpy
Reviewed By: bottler
Differential Revision: D29219990
fbshipit-source-id: f5feeef9eb952720ea7154d066795fbbe64ce7a1
Summary:
As reported on github, `matrix_to_quaternion` was incorrect for rotations by 180˚. We resolved the sign of the component `i` based on the sign of `i*r`, assuming `r > 0`, which is untrue if `r == 0`.
This diff handles special cases and ensures we use the non-zero elements to copy the sign from.
Reviewed By: bottler
Differential Revision: D29149465
fbshipit-source-id: cd508cc31567fc37ea3463dd7e8c8e8d5d64a235
Summary: Increase code coverage of shader and re-include them in code coverage test
Reviewed By: nikhilaravi
Differential Revision: D29097503
fbshipit-source-id: 2791989ee1562cfa193f3addea0ce72d6840614a
Summary:
There was a bug when `z_clip_value` is not None but there are no faces which are actually visible in the image due to culling. In `rasterize_meshes.py` a function `convert_clipped_rasterization_to_original_faces` is called to convert the clipped face indices etc back to the unclipped versions, but the case where there is no clipping was not handled correctly.
Fixes Github Issue #632
Reviewed By: bottler
Differential Revision: D29116150
fbshipit-source-id: fae82a0b4848c84b3ed7c7b04ef5c9848352cf5c
Summary: Fixed multiple issues with shape broadcasting in lighting, shading and blending and updated the tests.
Reviewed By: bottler
Differential Revision: D28997941
fbshipit-source-id: d3ef93f979344076b1d9098a86178b4da63844c8
Summary: Increase code coverage of subdivide_meshes and re-include it in code coverage test
Reviewed By: bottler
Differential Revision: D29097476
fbshipit-source-id: 3403ae38a90c4b53f24188eed11faae202a235b5
