81720071b8
Changes to dcmotor:
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- Remove `lugre:viscous`, should now be added directly to actuator `damping`. Trying to do this for the user was incompatible with default inheritance (compounding instead of overriding).
- Move voltage limiting from the `saturation` to the `controller` attribute.
- Fix indexing issues in default inheritance.
PiperOrigin-RevId: 897087642
Change-Id: I5388c2633e15c7e223992e7eb5d6a28db75a6438
2026-04-09 06:52:45 -07:00
382474bb9d
Minor improvements to dcmotor
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PiperOrigin-RevId: 895907301
Change-Id: Ia50a6d06c1ede9894cc71f375db837d104f0211e
2026-04-07 08:11:13 -07:00
70a7647ad9
Add <dcmotor> actuator and related docs and tests.
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PiperOrigin-RevId: 892927987
Change-Id: I38ed6412801341ba03ddf5fe7b93a6081df24d37
2026-04-01 07:50:23 -07:00
4b1667e4ce
Fix documentation links
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PiperOrigin-RevId: 886920783
Change-Id: Ie1ab433aeaaa668a103a684cbb30ef5375c6211b
2026-03-20 12:26:56 -07:00
510d75f4cf
Allow actuators to add damping and armature to joint and tendon transmissions.
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PiperOrigin-RevId: 886899849
Change-Id: I02200ee0d4f7c96096d8188b95f823b566562a30
2026-03-20 11:41:15 -07:00
e57d95e68f
Remove vertcollide attribute from flex contact.
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The `vertcollide` attribute in flex and flexcomp contact specifications has been removed since the next mjWarp release will support flex collisions. This attribute was previously used to enable vertex-based collisions by adding sphere geoms at flex vertices. The functionality associated with this attribute has been deprecated and removed from the XML parser, documentation, and internal data structures. Affected example XML files have also been updated.
PiperOrigin-RevId: 885595503
Change-Id: I6a78975f1bc540c09ea8b5306ff3be0962b7ab24
2026-03-18 07:59:57 -07:00
efae9157a7
Polynomial stiffness and damping https://youtu.be/aKa3ZlEF9_Y
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PiperOrigin-RevId: 884607673
Change-Id: If8088dbf37fed1055304778a7eb84dec52cba920
2026-03-16 13:25:25 -07:00
ac2730ab80
Change flex strain constraints for trilinear to a more stable formulation.
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This change improves trilinear flex elements by using reduced integration for volumetric quantities (strain trace and volume ratio) at the element center, while adding full integration for shear components at 8 Gauss points and removing the second strain invariant from the constraints, which is negligible for small strains. This reduced integration "B-bar" technique is standard in finite element analysis and prevents artificial stiffness that can occur when low-order elements are nearly incompressible. The constraint count per trilinear element changes from 24 to 26 compared to using invariants. For quadratic elements, the full 27 quadrature point are used resulting in 162 constraints.
PiperOrigin-RevId: 884570752
Change-Id: Ib74ece8f4712c2c81fbfd784524fcac52a2c80e5
2026-03-16 12:05:16 -07:00
713b5524bc
Introduces a new "strain" equality mode (flex_edgeequality = 3) for flexcomps with trilinear interpolation. This mode enforces constraints on the three invariants of the Green-Lagrange strain tensor at 8 Gauss quadrature points within each flex element, resulting in 24 equality constraints per flexcomp.
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Also fixes a bug when attaching a flex with constraints.
PiperOrigin-RevId: 881349765
Change-Id: I8e6df8239488bfdc87d7e5b473568975e38c737e
2026-03-10 04:26:07 -07:00
4e83e813d7
Update tactile sensor docs.
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PiperOrigin-RevId: 878468033
Change-Id: I0f36589877f3a93b596a9f848468f11a1ada9dfb
2026-03-04 06:52:48 -08:00
b71cdfb4ec
Fix documentation describing relpose for weld equality.
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The documentation incorrectly claimed the position elements in relpose described body2 relative to body1 when it instead is meant to describe the position of the anchor relative to body1.
PiperOrigin-RevId: 875722437
Change-Id: Ib3b1fd9d14976623b08511068ea9e11746a28b02
2026-02-26 07:53:59 -08:00
0c66585e39
Fix typos and minor corrections in MuJoCo documentation and comments.
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PiperOrigin-RevId: 875163889
Change-Id: Ic604d6235bf9cb999058f191e3ee41e47ec1a567
2026-02-25 07:56:31 -08:00
40e0007849
Restructure numeric constants table in API docs
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Break the monolithic numeric constants table into 6 sub-grouped tables:
Version, Engine constants, Array sizes, Visualization, Rendering, UI constants.
Fix stale values: mjMAXUITEXT (500->300), mjMAXUIMULTI (20->35),
mjMAXUIEDIT (5->7), mjMAXUIRECT (15->25).
Add missing constants: mjMAXLIGHT, mjMAXMATERIAL.
Fix placeholder description for mjMAXFLEXNODES.
PiperOrigin-RevId: 875010581
Change-Id: Id47846de4d98b62cb96087b72ecd28358d5db9c7
2026-02-25 00:54:35 -08:00
9d6d9089e5
Improve solver parameter documentation, in particular for frictional constraints.
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PiperOrigin-RevId: 873364458
Change-Id: Ie4da21abc2ee54d9eaaefc81b3d2624a520ad96e
2026-02-21 09:14:56 -08:00
0041fdcbb0
Add implicit stiffness for flex_interp to mj_implicitSkip.
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PiperOrigin-RevId: 867706885
Change-Id: Ic94c65b618a415609bffe3d69a86f9034f2d2400
2026-02-09 11:54:27 -08:00
6419534bad
Add actuator and sensor delays. Fixes #1004
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PiperOrigin-RevId: 866478839
Change-Id: Id21a6da0f98454c8fa39ea5af8a5e213d6eae497
2026-02-06 08:47:36 -08:00
883e69d7b1
Minor improvements to collision sensor documentation.
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PiperOrigin-RevId: 862767431
Change-Id: I53861430e7868b23e37be9694f195a2dd3685db4
2026-01-29 09:22:23 -08:00
1d2d0b1c37
Remove batching optimization from GEOM* sensors
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PiperOrigin-RevId: 861938606
Change-Id: Ibb135a4d99cab9ce23a04f844f7c730e8f3b31c8
2026-01-27 16:44:10 -08:00
5fc6ed4eda
Make XML schema dropdown titles clickable links.
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PiperOrigin-RevId: 861182944
Change-Id: I01fec8f102a87f8daf65ad5ba5ed3a09c0022cd0
2026-01-26 07:26:27 -08:00
7f8084ae1d
Rename XML reference icons to avoid anchor issues.
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Before this change:
`https://mujoco.readthedocs.io/en/latest/XMLreference.html#body-site-m `
After this change:
`https://mujoco.readthedocs.io/en/latest/XMLreference.html#body-site `
PiperOrigin-RevId: 861180069
Change-Id: I6f15906c8be463825248487021f9f46fc82a95da
2026-01-26 07:16:08 -08:00
7da271c687
Add vertex equality option.
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PiperOrigin-RevId: 860299454
Change-Id: I7befd8e5f4c8bac6d74684a96a9cc3cee9ae1e29
2026-01-23 16:30:05 -08:00
7e21f18fd3
Document compiler/usethread fix.
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PiperOrigin-RevId: 855735924
Change-Id: I5b638ccf2a74194b363cf7c6436f78c1c3d9b0e1
2026-01-13 08:21:27 -08:00
f0e1d8ce2c
Fix typo in XML reference: damping -> damper.
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PiperOrigin-RevId: 855198029
Change-Id: I2cc2b833e8a7fad8c63d1eb7b3febdd54d0c9056
2026-01-12 06:13:20 -08:00
608115ab95
Add output attribute to camera elements.
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This attribute allows specifying the intended output types (e.g., RGB, depth, normal) for each camera in the XML. The output types are stored as bit flags in `mjModel`.
PiperOrigin-RevId: 853316261
Change-Id: I1ad2e94102593cf402756f8f4c80509371ca86d2
2026-01-07 10:22:27 -08:00
775c0698c3
MJCF schema: use responsive grids for attributes
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PiperOrigin-RevId: 853263519
Change-Id: I79cb6e6208061d9546f0dca7a941838caa6b1a91
2026-01-07 08:00:16 -08:00
3868ed0382
Improve XML schema usability
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PiperOrigin-RevId: 852820889
Change-Id: I04eea45161f9e71f9ccf49afad57ff28fd099b35
2026-01-06 09:51:36 -08:00
70bc7be4bc
Add additional data fields that can be reported by rangefinder sensors.
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PiperOrigin-RevId: 848316991
Change-Id: Idbf7ba81b4da711a22c23302c8782ab2b0b98d82
2025-12-23 15:33:00 -08:00
9d646e6548
Extend rangefinder sensor to support cameras.
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PiperOrigin-RevId: 848255889
Change-Id: I6e1a9ed13d29d2242558625a47e24e47ad6e87db
2025-12-23 12:04:49 -08:00
c7f5766345
Add frustum visualization for orthographic cameras.
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PiperOrigin-RevId: 847698917
Change-Id: I13633e8ba2d4718b127a5838c404ab74c6180e3d
2025-12-22 03:43:54 -08:00
158525269b
Refactor camera intrinsic parameter handling.
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Move logic from parser to compiler.
PiperOrigin-RevId: 847689906
Change-Id: I844746081973205e1b33a3845add842e8b8c3c07
2025-12-22 03:08:18 -08:00
b8a4ac5d48
Refactor camera orthographic attribute to projection enum.
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PiperOrigin-RevId: 847069028
Change-Id: I7f686fe654e9b56519cab8bd2f37c9cc40091d3f
2025-12-20 03:28:29 -08:00
c064abc3da
Change row-flipping logic for heightfields.
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Move row-flipping logic from `mjCModel::CopyBack` to `mjXWriter`.
PiperOrigin-RevId: 842220322
Change-Id: I6fb09db6c9e8689f6e435f82f58dd3e7c4314478
2025-12-09 07:02:21 -08:00
a9fe8340bf
Remove extraneous colons in XMLreference
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PiperOrigin-RevId: 837017632
Change-Id: Ie89adf4fd3725cfa4b8eb0bcddedd4fa886ed8fb
2025-11-26 01:56:28 -08:00
a0cb97eb4d
Improve attach docs.
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PiperOrigin-RevId: 834366494
Change-Id: I9086097990f09e848d0b76d9c22f4fd2bbd70718
2025-11-19 11:08:36 -08:00
8734cab366
Add sleeping documentation
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https://youtu.be/vct493lGQ8Q
PiperOrigin-RevId: 829390353
Change-Id: I92f85a03be0bb585d2d8e29de1ed1a2e848f247f
2025-11-07 05:12:42 -08:00
252a0d73df
Add sleep related data structures
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PiperOrigin-RevId: 829055431
Change-Id: I1ccbd77a57044a754ae7db611b4c2c0010fbda53
2025-11-06 12:10:55 -08:00
3a7aa84e53
Add quadratic stiffness to flex.
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PiperOrigin-RevId: 827409919
Change-Id: I3dff8ea49fb1726fec4acf5b91138d6d52c4bfba
2025-11-03 03:01:38 -08:00
37563a050e
Remove obsolete docs references to convexhull.
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Fixes #2912 .
PiperOrigin-RevId: 825679563
Change-Id: I8ee14415fb1eb64ece5cf4f3c07d016126025364
2025-10-29 13:17:48 -07:00
64add36adb
Update documentation to be compatible with PDF generation
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PiperOrigin-RevId: 822081040
Change-Id: I935b08751109e973398bc61c21f7217408983494
2025-10-21 06:02:53 -07:00
98682ae284
Do not modify mesh position when fitting a geom to the mesh AABB.
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Also, unify the meaning of fitting a geom to an AABB: it now means to find the smallest geom such that its AABB contains the mesh AABB.
Fixes #2881 .
PiperOrigin-RevId: 817097544
Change-Id: I883c686feffa803bd16ba461db24a474dfec7712
2025-10-09 03:05:00 -07:00
431f96572e
Remove unused mjOption.apirate.
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PiperOrigin-RevId: 815633571
Change-Id: Ib98f3eb2df47f96fa1fe6e987a3a0cd23a9479f6
2025-10-06 02:51:17 -07:00
50920450d2
Update box geom docs.
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PiperOrigin-RevId: 814646973
Change-Id: I6ef294c2b740ca2ebbf2501974120d13d08bf56e
2025-10-03 05:00:26 -07:00
9a5acbd662
Clarify subtree definition and self-collision matching in contact sensor docs.
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PiperOrigin-RevId: 811731260
Change-Id: Ib890c59f67489de7d482cb239c146a9d565b6027
2025-09-26 02:34:56 -07:00
fe8384b6c5
Visualize joint and tendon limits by re-coloring.
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PiperOrigin-RevId: 811590674
Change-Id: I5b65f2294a4bcda3c321fb51ebf29501bd0d416d
2025-09-25 19:02:26 -07:00
9d5063799f
Resize keyframes also at the start of compilation.
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Previously, it was assumed that attaching was the last operation performed on the mjSpec, so keyframes resulted in the incorrect size. In order to prevent information loss, we now only allow the resize function to expand the keyframe array, since attach should never remove a degree of freedom.
PiperOrigin-RevId: 804917828
Change-Id: Icfacd207ced1c6aac600d514f8d9065ceff2d347
2025-09-09 08:16:32 -07:00
8acd83f317
Add passive collision mode for flexes.
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PiperOrigin-RevId: 801754907
Change-Id: I4147af2ee2596519d42cb9a03cf8d5488f0bc3e8
2025-09-01 04:13:58 -07:00
5d598a49a2
Documentation bug fixes.
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PiperOrigin-RevId: 801283863
Change-Id: I85bb11f4970bd6206f99a91cee04c2b99f73c576
2025-08-30 11:03:43 -07:00
b092563cab
Remove mjDSBL_PASSIVE, split it into mjDSBL_SPRING and mjDSBL_DAMPING.
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PiperOrigin-RevId: 800870384
Change-Id: I273e0ceec090901e2620febb67e57914928e94bb
2025-08-29 06:06:28 -07:00
7443e685ac
Allow contact sensor subtree1/subtree2 to be any body.
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PiperOrigin-RevId: 799632590
Change-Id: If9cd6c5a3a5f83d89ae024a8f64232ab1f1d603a
2025-08-26 11:00:39 -07:00
ec94bb49aa
Make constraint island discovery on by default.
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Also fix latent bug in mjData serialization.
PiperOrigin-RevId: 799505349
Change-Id: I299e7cc8133fa2ec0b339a7ff3d02543e06778b1
2025-08-26 04:27:24 -07:00
Yuval Tassa