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Adds flag to recompute inertia when randomizing the mass of a rigid body #989

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merged 4 commits into from
Sep 19, 2024

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Mayankm96
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@Mayankm96 Mayankm96 commented Sep 16, 2024

Description

Previously, the method for randomizing masses of rigid bodies only set the masses. However, the inertia tensors were not automatically updated, and their original values were used inside the solver. This MR adds a flag to recompute the inertia when mass is randomized by assuming a uniform-density object. We make this an optional flag in case users want to handle inertia tensors explicitly on their own.

Type of change

  • Bug fix (non-breaking change which fixes an issue)
  • Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

  • I have run the pre-commit checks with ./isaaclab.sh --format
  • I have made corresponding changes to the documentation
  • My changes generate no new warnings
  • I have added tests that prove my fix is effective or that my feature works
  • I have updated the changelog and the corresponding version in the extension's config/extension.toml file
  • I have added my name to the CONTRIBUTORS.md or my name already exists there

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@jsmith-bdai jsmith-bdai left a comment

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Looks good, just NIT to add docstring for that method as it's missing!

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@jtigue-bdai jtigue-bdai left a comment

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LGTM, just a NIT typo

Co-authored-by: jtigue-bdai <166445701+jtigue-bdai@users.noreply.github.com>
Signed-off-by: Mayank Mittal <12863862+Mayankm96@users.noreply.github.com>
@Dhoeller19 Dhoeller19 merged commit ac4751f into main Sep 19, 2024
2 of 3 checks passed
@Dhoeller19 Dhoeller19 deleted the fix/inertia-tensors branch September 19, 2024 09:30
iamdrfly pushed a commit to iamdrfly/IsaacLab that referenced this pull request Nov 21, 2024
…ody (isaac-sim#989)

# Description

Previously, the method for randomizing masses of rigid bodies only set
the masses. However, the inertia tensors were not automatically updated,
and their original values were used inside the solver. This MR adds a
flag to recompute the inertia when mass is randomized by assuming a
uniform-density object. We make this an optional flag in case users want
to handle inertia tensors explicitly on their own.

## Type of change

- Bug fix (non-breaking change which fixes an issue)
- Breaking change (fix or feature that would cause existing
functionality to not work as expected)

## Checklist

- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./isaaclab.sh --format`
- [x] I have made corresponding changes to the documentation
- [ ] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] I have updated the changelog and the corresponding version in the
extension's `config/extension.toml` file
- [x] I have added my name to the `CONTRIBUTORS.md` or my name already
exists there
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4 participants