These flexes use only 24 DOFs (3 per vertex of the bounding box), while colliding with the full high resolution mesh.
On an 8x8x8 cube, the performance using DOFs at all vertices is
```
Simulation time : 18.74 s
Steps per second : 533
Realtime factor : 0.53 x
Time per step : 1874.4 µs
Contacts per step : 114.88
Constraints per step : 3322.51
Degrees of freedom : 1536
```
With the new implementation, it is the following:
```
Simulation time : 1.82 s
Steps per second : 5507
Realtime factor : 5.51 x
Time per step : 181.6 µs
Contacts per step : 38.84
Constraints per step : 155.36
Degrees of freedom : 24
```
PiperOrigin-RevId: 721008829
Change-Id: I833df027527db578d86667cc4b24295bcf6f7d22
- `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
--
0e1aae484a1a6d2d52d0b99bf62f116d42ed9a1f by Kristian Hartikainen <kristian.hartikainen@gmail.com>:
Fix typo in `changelog.rst`
COPYBARA_INTEGRATE_REVIEW=https://github.com/google-deepmind/mujoco/pull/2298 from hartikainen:patch-1 0e1aae484a1a6d2d52d0b99bf62f116d42ed9a1f
PiperOrigin-RevId: 707528220
Change-Id: Ie3bc28cf7a8456e4ba8bfc405ab7190a84d5a69e
--
3a95b62f59e81bfef0f076afb173ecc14b27943d by Levi Burner <leviburner@gmail.com>:
rollout prototype native threadpool for comparing to python threads
--
efd8be1124ac839b902de45973a3ca8b9f2215e6 by Levi Burner <leviburner@gmail.com>:
copy mjpcs threadpool into python bindings
--
75603eea3e8362e354a9675e8a6cd14e56ec3d28 by Levi Burner <leviburner@gmail.com>:
rollout use threadpool as translation unit
--
06b90febd021663f6cc81fd7895e4d6e2008ed97 by Levi Burner <leviburner@gmail.com>:
rollout add chunk_divisor parameter
--
298ab2f3c0d6e12530832c3cdbf784dd92d54806 by Levi Burner <leviburner@gmail.com>:
rollout add native threading test
--
169cf9978e7abad6edd1392b8e6aab995e4f8f10 by Levi Burner <leviburner@gmail.com>:
rollout exchange chunk_divisor arg for chunk_size
--
265af851d74432d261277d3dbda11cdef1841bc8 by Levi Burner <leviburner@gmail.com>:
rollout fix cosmetics
--
1e8bffa88bf36190501b334bef31147e23db39f7 by Levi Burner <leviburner@gmail.com>:
make native rollout a class instead of a function
--
ba788214b047577f58c41ce0ab6c62c277cd8b0d by Levi Burner <leviburner@gmail.com>:
rollout update docs and changelog
--
e4cb7732319e04cba2ab2c2ad848c659f6309808 by Levi Burner <leviburner@gmail.com>:
rollout don't register atexit handler for Rollout objects
--
5a08d2efdbbbb01d4b1231ff9a36a1dc44f4d9ee by Levi Burner <leviburner@gmail.com>:
rollout nthread kwarg, rename shutdown_pool to close, fixups
--
f622378543596a208339af0208fa3a70bf2a8007 by Levi Burner <leviburner@gmail.com>:
rollout add missing .close() calls
--
50f3ebca43c53eac03f03943c34bb1e46967bd4f by Levi Burner <leviburner@gmail.com>:
rollout return immediately
COPYBARA_INTEGRATE_REVIEW=https://github.com/google-deepmind/mujoco/pull/2282 from aftersomemath:rollout-threaded 50f3ebca43c53eac03f03943c34bb1e46967bd4f
PiperOrigin-RevId: 706744277
Change-Id: I1ab2263b7d6ce30cf1908aec8fd5f2eb976a19e6
Add pulley example to show a circle use case.
Switch on flex edge rendering by default (no effect when flex skin is rendered).
PiperOrigin-RevId: 700738379
Change-Id: I8469bbf194de01c8dab66c9a51c49879013df141
This method allows users to bind a spec to a model or data object, making it less verbose to access its arrays.
PiperOrigin-RevId: 699952211
Change-Id: I6b71a88d5a6968bc0f902bd49db7c568b46a4dfb
Using ids is error prone in scenarios of repeated attachment and detachment. Python users are encouraged to use names for unique identification of model elements.
PiperOrigin-RevId: 699227286
Change-Id: Ifd83e6d85d36ff72ea43caf8b82eab9e4d552440
Also, fix a bug with Flex textures that was causing an incorrect allocation of the textures in mjModel. Fixes#2013.
PiperOrigin-RevId: 692510858
Change-Id: If781716216974e085244da27bc3aa57d91c3458c
The introduction of site specification to connects and welds in 3.2.3 conditionally changed the semantics of `mjData.eq_obj1id` and `mjData.eq_obj2id`. These changes were not properly propagated in several places leading to incorrect computations of constraint inertia, readings of affected force/torque sensors and runtime enabling/disabling of such constraints.
PiperOrigin-RevId: 690670420
Change-Id: I55ee8a013cbee8457f8d6c7f33c2981aedafbab6
The associated row in `actuator_moment` was not cleared before being updated.
PiperOrigin-RevId: 688207085
Change-Id: I2f925e984c5c493e64ead66667aef57c4844acfe
Improve the model's rendering FPS by reducing the number of shadow-casting lights from 7 to 2.
https://youtu.be/e8lUuykQPGs
PiperOrigin-RevId: 686118052
Change-Id: If376564fdc23ad8d754dac1e5825079c0b806063
Baruch Tabanpour