chenlin/Mujoco_WASM
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29 Commits

Author SHA1 Message Date
Yuval Tassa 2810edd27a Rename mjtnum.h to mjtype.h, move enum types to mjtype.h 
PiperOrigin-RevId: 919020039
Change-Id: I441295c0baa0b7456f78239fbd5478d32ffc07c1
 2026-05-21 06:43:29 -07:00
Yuval Tassa f114ea8038 Optimize mj_tendonBias by computing Jdot * qvel directly 
PiperOrigin-RevId: 897628283
Change-Id: Iee26a95d6aaa379730b89be14746308742111e2d
 2026-04-10 04:57:55 -07:00
Yuval Tassa 769f37b653 Implement sleeping in engine 
PiperOrigin-RevId: 829361787
Change-Id: I6f64d8e25c4248cf32c18cd94d37ff5def78946e
 2025-11-07 03:33:07 -08:00
Yuval Tassa 6b41fbe72a Use CSR matrices for dof-dof index mappings 
PiperOrigin-RevId: 795895311
Change-Id: I1000e0ee98906ef35990e73236e85d6354487b82
 2025-08-16 13:06:32 -07:00
Yuval Tassa 89e39dc0a7 Expose mj_makeM as a sub-component. 
PiperOrigin-RevId: 763662068
Change-Id: I55ced456dca751c1de09fb35e2f73c60ffc0d626
 2025-05-27 00:35:55 -07:00
Yuval Tassa d8bebdc675 Remove unnecessary diagnum argument in mj_solveLD and mj_factorI 
PiperOrigin-RevId: 758669364
Change-Id: Icfefc4a7a1e7d28da373725358ccf9d5f589f689
 2025-05-14 07:13:27 -07:00
Yuval Tassa 85dd78d6f3 Add private function mj_makeM. 
PiperOrigin-RevId: 757689756
Change-Id: Ie8bb49d9f18a95da2e3fd8622e30f9266a1ced98
 2025-05-12 03:52:38 -07:00
Yuval Tassa ecb769fc3a Refactor islands to be memory contiguous. 
PiperOrigin-RevId: 755803476
Change-Id: I41972b07e0d5ef5d0117c94f565b93367b87458b
 2025-05-07 05:06:27 -07:00
Yuval Tassa d05251af2a Add tendon armature 
PiperOrigin-RevId: 743939992
Change-Id: I587214f5d6fabbc0cc273c33d82decbe9ad8f919
 2025-04-04 07:44:04 -07:00
Yuval Tassa c931565fdc Add internal functionmj_tendonDot: time derivative of tendon Jacobian for one tendon. 
Notes:
- Currently always uses dense math, even for sparse models. This should be easy to change in the future.
- Does not support geom wrapping. This is possible but harder, requires derivatives of mju_wrap.
PiperOrigin-RevId: 740378741
Change-Id: Id39ef2c4bfbb7ee11ec33c97d7d83140441cdab2
 2025-03-25 09:36:30 -07:00
Yuval Tassa b516edae1b Rename inertia factorization routines: 
```
mj_factorI -> mj_factorI_legacy
mj_solveLD -> mj_solveLD_legacy
mj_factorIs -> mj_factorI
mj_solveLDs -> mj_solveLD
```

PiperOrigin-RevId: 728246367
Change-Id: I3bc7804cb96faac2ae5419ba9abfc3c1648ed4c6
 2025-02-18 09:42:05 -08:00
Yuval Tassa fb07e0d1f7 Convert qLD to CSR format. 
PiperOrigin-RevId: 728196818
Change-Id: I31bdf32e251293284426ed345019f27fd051a0e1
 2025-02-18 07:14:45 -08:00
Yuval Tassa 5ee0654830 Roll back recent change to mjData.qLD until some issues are resolved. 
PiperOrigin-RevId: 724389161
Change-Id: I1b30ab0950ab5c5e611b1c6fc3bf3f42f964939c
 2025-02-07 10:21:42 -08:00
Yuval Tassa c27d3758c2 Convert qLD to CSR format. 
PiperOrigin-RevId: 723955038
Change-Id: I30c3dc7f59739e89ae5fff8841432bc74717ec1b
 2025-02-06 08:59:35 -08:00
Yuval Tassa 2624d524ba Switch mj_solveM_island to use CSR representation 
PiperOrigin-RevId: 717684720
Change-Id: I7d74a5d4aef4aa5b0c0acddf88c5b8591d63e88d
 2025-01-20 18:36:04 -08:00
Yuval Tassa 8a5f092081 Allow CSR back-substitution to handle multiple vectors. 
PiperOrigin-RevId: 713229673
Change-Id: I7a5b43fe966cf9e482bd41e2eea6c30dd3ffa1d4
 2025-01-08 03:32:16 -08:00
Yuval Tassa ac11e5faa6 Add CSR implementation of mj_factorI 
PiperOrigin-RevId: 712498431
Change-Id: I13b52e53482ed97da8788875d4d95e2beb5ca7c1
 2025-01-06 05:48:14 -08:00
Yuval Tassa 4510c6d290 Further speedup to CSR back-substitution using dof_simplenum. 
PiperOrigin-RevId: 711440268
Change-Id: I81cd9a6a8b8ec78d08cfbc34f60a9216ea753833
 2025-01-02 09:04:51 -08:00
Yuval Tassa 69c9ac074a Remove mjData.qLDiagSqrtInv, add corresponding argument to mj_solveM2. 
- `qLDiagSqrtInv` is only required for the dual solvers. It is now computed as-needed rather than unconditionally.
- `mj_solveM2` now requires a new input array `sqrtInvD` which contains the square root of the inverse diagonal D (formerly saved in `qLDiagSqrtInv`).

PiperOrigin-RevId: 710805133
Change-Id: I0622d6a8da3882916824e9c10bad9223c122c321
 2024-12-30 15:24:36 -08:00
Yuval Tassa 1c4c7b012c CSR implementation of mj_solveLD. 
PiperOrigin-RevId: 704316200
Change-Id: Ibaff0284e40b3ebbe43bb489b6211ce739270e27
 2024-12-09 09:34:17 -08:00
Alessio Quaglino 5a70ad08ab Add Flex component. 
PiperOrigin-RevId: 572830650
Change-Id: I6908228087b7b9683be3506c8d9cdc725ed5dcd5
 2023-10-12 10:49:35 +01:00
Yuval Tassa 129abc6bca Add private function mj_solveM_island for mass matrix solve with sub indices corresponding to one island. 
PiperOrigin-RevId: 561622962
Change-Id: Ib43f03b3dd0c7456c57d4ba45a68e0708bf1c91c
 2023-08-31 05:11:00 -07:00
Kyle Bayes 7e1c65b10e Improve CRB code: 
- remove mj_crbSkip since this was only utilized during compile time to compute m->dof_m0, replaced with mj_crbDiag to compute only the diagonals for dof_m0,
- change row backward pass to forward pass to optimize processing diagonal blocks,
- and various code refactoring.

PiperOrigin-RevId: 556799924
Change-Id: I0a18d7a45862860fdddd7150540ddc8d64b01b29
 2023-08-14 08:32:12 -07:00
Yuval Tassa 222ee00a66 Break out passive force functions into a new file engine_passive.c 
PiperOrigin-RevId: 513834952
Change-Id: I5347440f24d767a7dc81a34e48e1e17d8c10173f
 2023-03-03 08:32:16 -08:00
Alessio Quaglino 9fc9823a8c Speed improvements in mj_solveLD (14% on Intel Skylake Xeon 36 cores). 
PiperOrigin-RevId: 486960670
Change-Id: I8fce96427158ec36069dea893500059e93bd40db
 2022-11-08 08:38:45 -08:00
Yuval Tassa 52d78f8d24 Remove unused mjData argument in private function mj_solveLD. 
PiperOrigin-RevId: 464087933
Change-Id: Ibe9e9713680a02bfe098c39191f9b706e2c70c12
 2022-07-29 08:53:04 -07:00
Yuval Tassa ea956dfe34 Derivatives of ellipsoid fluid model. 
PiperOrigin-RevId: 459751881
Change-Id: I52db87d82e20e10698b13065df2e983b9841bd7a
 2022-07-08 07:19:48 -07:00
Yuval Tassa 228264c92b Add efficient finite-difference Jacobians of mj_step. 
- Add `qH` and `qHDiagInv` to `mjData` to save factorized modified inertia.
- Add `mj_EulerSkip`, `mj_implicitSkip`, to `engine_forward.c`.
- Using the above functions, implement `mj_stepSkip` in `engine_derivative.c`.
- Add `mjd_stepFD` and `mjd_transitionFD` to `engine_derivative.c` to compute `mj_step` Jacobians.
  - Exploit "Skip" functionality for speed.
  - Correctly handle quaternion derivatives.
  - Handle warmstarts and control limits.

PiperOrigin-RevId: 456584811
Change-Id: Iee8541f11e7b66feb8f431cb102d9bbe65461f79
 2022-06-22 12:48:48 -07:00
Saran Tunyasuvunakool 1913a02b40 Initial open sourcing of MuJoCo. 
PiperOrigin-RevId: 450374687
Change-Id: Ie3225a46ce095fc28ae8e63c326a640261f562bb
 2022-05-23 01:08:49 -07:00