Update dependencies and the changelog ahead of the 3.3.0 release.
PiperOrigin-RevId: 731406295 Change-Id: I05027722a9681f71549b7e022dfe13fc381b8564
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@@ -39,22 +39,22 @@ set(MUJOCO_DEP_VERSION_qhull
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CACHE STRING "Version of `qhull` to be fetched."
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)
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set(MUJOCO_DEP_VERSION_Eigen3
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7f2377859377da6f22152015c28b12c04752af77
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66f7f51b7e069d0a03a21157fa60b24aece69aeb
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CACHE STRING "Version of `Eigen3` to be fetched."
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)
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set(MUJOCO_DEP_VERSION_abseil
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4447c7562e3bc702ade25105912dce503f0c4010 # LTS 20240722.0
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9ac7062b1860d895fb5a8cbf58c3e9ef8f674b5f # LTS 20250127.0
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CACHE STRING "Version of `abseil` to be fetched."
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)
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set(MUJOCO_DEP_VERSION_gtest
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b514bdc898e2951020cbdca1304b75f5950d1f59 # v1.15.2
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6910c9d9165801d8827d628cb72eb7ea9dd538c5 # v1.16.0
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CACHE STRING "Version of `gtest` to be fetched."
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)
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set(MUJOCO_DEP_VERSION_benchmark
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24e0bd827a8bec8121b128b0634cb34402fb3259 # Incorporate fix for #1859
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049f6e79cc3e8636cec21bbd94ed185b4a5f2653
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CACHE STRING "Version of `benchmark` to be fetched."
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)
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+47
-47
@@ -2,8 +2,8 @@
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Changelog
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=========
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Upcoming version (not yet released)
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-----------------------------------
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Version 3.3.0 (Feb 26, 2025)
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----------------------------
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Feature promotion
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@@ -13,26 +13,26 @@ Feature promotion
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:align: right
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:width: 240px
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- Introduced a new kind of **fast deformable body**, activated by setting :ref:`flexcomp/dof<body-flexcomp-dof>` to
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"trilinear". This type of :ref:`deformable<CDeformable>` flex object has the same collision geometry as a regular
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flex, but has far fewer degrees of freedom. Instead of 3 dofs per vertex, only the corners of the bounding box are
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free to move, with the positions of the interior vertices computed with trilinear interpolation of the 8 corners, for
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a total of 24 dofs for the entire flex object (or less, if some of the corners are pinned). This limits the types of
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deformation achievable by the flex, but allows for much faster simulation. For example, see the video on the right
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comparing `full <https://github.com/google-deepmind/mujoco/blob/main/model/flex/gripper.xml>`__ and `trilinear
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<https://github.com/google-deepmind/mujoco/blob/main/model/flex/gripper_trilinear.xml>`__ flexes for modeling
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deformable gripper pads.
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1. Introduced a new kind of **fast deformable body**, activated by setting :ref:`flexcomp/dof<body-flexcomp-dof>` to
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"trilinear". This type of :ref:`deformable<CDeformable>` flex object has the same collision geometry as a regular
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flex, but has far fewer degrees of freedom. Instead of 3 dofs per vertex, only the corners of the bounding box are
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free to move, with the positions of the interior vertices computed with trilinear interpolation of the 8 corners, for
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a total of 24 dofs for the entire flex object (or less, if some of the corners are pinned). This limits the types of
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deformation achievable by the flex, but allows for much faster simulation. For example, see the video on the right
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comparing `full <https://github.com/google-deepmind/mujoco/blob/main/model/flex/gripper.xml>`__ and `trilinear
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<https://github.com/google-deepmind/mujoco/blob/main/model/flex/gripper_trilinear.xml>`__ flexes for modeling
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deformable gripper pads.
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- .. image:: images/computation/ccd_light.gif
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:width: 20%
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:align: right
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:class: only-light
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2. .. image:: images/computation/ccd_light.gif
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:width: 20%
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:align: right
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:class: only-light
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.. image:: images/computation/ccd_dark.gif
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:width: 20%
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:align: right
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:class: only-dark
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.. image:: images/computation/ccd_dark.gif
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:width: 20%
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:align: right
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:class: only-dark
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The native convex collision detection pipeline introduced in 3.2.3 and enabled by the
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:ref:`nativeccd<option-flag-nativeccd>` flag, is now the default. See the section on
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@@ -42,47 +42,47 @@ Feature promotion
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General
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^^^^^^^
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- Add support for custom plots in the MuJoCo viewer by exposing a ``viewport`` property, a ``set_figures`` method,
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and a ``clear_figures`` method.
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- Separate collision and deformation meshes for :ref:`flex<deformable-flex>`. This enables a fixed cost for the soft
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body computations, while preserving the fidelity of high-resolution collisions.
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- Added :ref:`potential<sensor-e_potential>` and :ref:`kinetic<sensor-e_kinetic>` energy sensors.
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- Improved shadow rendering in the native renderer.
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- Moved ``introspect`` to ``python/introspect``.
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3. Add support for custom plots in the MuJoCo viewer by exposing a ``viewport`` property, a ``set_figures`` method,
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and a ``clear_figures`` method.
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4. Separate collision and deformation meshes for :ref:`flex<deformable-flex>`. This enables a fixed cost for the soft
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body computations, while preserving the fidelity of high-resolution collisions.
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5. Added :ref:`potential<sensor-e_potential>` and :ref:`kinetic<sensor-e_kinetic>` energy sensors.
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6. Improved shadow rendering in the native renderer.
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7. Moved ``introspect`` to ``python/introspect``.
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.. admonition:: Breaking API changes
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:class: attention
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- As mentioned above, the native convex collision detection pipeline is now the default, which may break some
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workflows. In this case, set :ref:`nativeccd<option-flag-nativeccd>` to "disable" to restore the old behavior.
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- Added :ref:`mjs_setDeepCopy` API function. When the deep copy flag is 0, attaching a model will not copy it to the
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parent, so the original references to the child can be used to modify the parent after attachment. The default
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behavior is to perform such a shallow copy. The old behavior of creating a deep copy of the child model while
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attaching can be restored by setting the deep copy flag to 1.
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- Changes to inertia inference from meshes:
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8. As mentioned above, the native convex collision detection pipeline is now the default, which may break some
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workflows. In this case, set :ref:`nativeccd<option-flag-nativeccd>` to "disable" to restore the old behavior.
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9. Added :ref:`mjs_setDeepCopy` API function. When the deep copy flag is 0, attaching a model will not copy it to the
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parent, so the original references to the child can be used to modify the parent after attachment. The default
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behavior is to perform such a shallow copy. The old behavior of creating a deep copy of the child model while
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attaching can be restored by setting the deep copy flag to 1.
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10. Changes to inertia inference from meshes:
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Previously, in order to specify that the mass lies on the surface, :ref:`geom/shellinertia<body-geom-shellinertia>`
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could be used for any geom type. Now this attribute is ignored if the geom is a mesh; instead, inertia inference
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for meshes is specified in the asset, using the :ref:`asset/mesh/inertia<asset-mesh-inertia>` attribute.
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Previously, in order to specify that the mass lies on the surface, :ref:`geom/shellinertia<body-geom-shellinertia>`
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could be used for any geom type. Now this attribute is ignored if the geom is a mesh; instead, inertia inference
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for meshes is specified in the asset, using the :ref:`asset/mesh/inertia<asset-mesh-inertia>` attribute.
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Previously, if the volumetric inertia computation failed (for example due to a very flat mesh), the compiler
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would silently fall back to surface inertia computation. Now, the compiler will throw an informative error.
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- Removed the composite type ``grid``. Users should instead use :ref:`flexcomp<body-flexcomp>`.
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- Removed the ``particle`` composite type. It is recommended to use the more generic :ref:`replicate<replicate>`
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instead, see for example `this model
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<https://github.com/google-deepmind/mujoco/blob/main/model/replicate/particle.xml>`__.
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Previously, if the volumetric inertia computation failed (for example due to a very flat mesh), the compiler
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would silently fall back to surface inertia computation. Now, the compiler will throw an informative error.
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11. Removed the composite type ``grid``. Users should instead use :ref:`flexcomp<body-flexcomp>`.
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12. Removed the ``particle`` composite type. It is recommended to use the more generic :ref:`replicate<replicate>`
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instead, see for example `this model
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<https://github.com/google-deepmind/mujoco/blob/main/model/replicate/particle.xml>`__.
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MJX
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^^^
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- Added support for spatial tendons with internal sphere and cylinder wrapping.
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- Fix a bug with box-box collisions :github:issue:`2356`.
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13. Added support for spatial tendons with internal sphere and cylinder wrapping.
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14. Fix a bug with box-box collisions :github:issue:`2356`.
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Python bindings
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^^^^^^^^^^^^^^^
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- Added a pedagogical colab notebook for ``mujoco.rollout``, a Python module for multithreaded simulation rollouts.
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It is available here |rollout_colab|.
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|br| Contribution by :github:user:`aftersomemath`.
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15. Added a pedagogical colab notebook for ``mujoco.rollout``, a Python module for multithreaded simulation rollouts.
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It is available here |rollout_colab|.
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|br| Contribution by :github:user:`aftersomemath`.
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.. |rollout_colab| image:: https://colab.research.google.com/assets/colab-badge.svg
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:target: https://colab.research.google.com/github/google-deepmind/mujoco/blob/main/python/rollout.ipynb
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@@ -140,7 +140,7 @@ findorfetch(
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GIT_REPO
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https://github.com/abseil/abseil-cpp
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GIT_TAG
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4447c7562e3bc702ade25105912dce503f0c4010 # LTS 20240722.0
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9ac7062b1860d895fb5a8cbf58c3e9ef8f674b5f # LTS 20250127.0
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TARGETS
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${MUJOCO_PYTHON_ABSL_TARGETS}
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EXCLUDE_FROM_ALL
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@@ -173,7 +173,7 @@ findorfetch(
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GIT_REPO
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https://gitlab.com/libeigen/eigen
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GIT_TAG
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7f2377859377da6f22152015c28b12c04752af77
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66f7f51b7e069d0a03a21157fa60b24aece69aeb
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TARGETS
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Eigen3::Eigen
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EXCLUDE_FROM_ALL
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