Commit Graph

16 Commits

Author SHA1 Message Date
Alessio Quaglino 41a7049920 Use shell inertia to compute mesh aabb and frame if volume is invalid.
PiperOrigin-RevId: 530925161
Change-Id: I94b97efc7198e2b750480df8687e91bc047a6fc9
2023-05-10 09:12:11 -07:00
Kyle Bayes 23961e24b7 Refactor user codebase to use LoadResource helper method.
* Fix small bug when registering resource providers.
* Add test cases for OS filesystem fallback with VFS.
* Rewrite LoadModelFromString using a resource provider (now can pass custom VFSs).

PiperOrigin-RevId: 526959705
Change-Id: Iee1773e5584535d868aab6b206d1bf362e600c8a
2023-04-25 07:24:45 -07:00
Alessio Quaglino 3db483c248 Print warning and default to computing mesh inertia from convex hull if volume is negative (malformed mesh).
PiperOrigin-RevId: 526053615
Change-Id: I3974b3433da513f869b1bdab5e98232e215f6509
2023-04-21 09:01:34 -07:00
Alessio Quaglino 94c4f72907 Specify is volume is too small or negative in mesh error messages. Fixes #799.
PiperOrigin-RevId: 525151156
Change-Id: Ia0e9d8b900b8c372e9229da934a4eb7aeb1a3b7a
2023-04-18 08:16:44 -07:00
Alessio Quaglino 9756ed0d80 Read normals and textures from OBJ, do not duplicate vertices.
PiperOrigin-RevId: 510461549
Change-Id: I19245d691e722a8371e61153383f275f599353d6
2023-02-17 10:15:25 -08:00
Alessio Quaglino 6ba4d6f0de Fix a bug that was causing a mismatch between the orientation of the mesh frame and the vertex coordinates.
PiperOrigin-RevId: 502624466
Change-Id: Ib28fd2a118b6572be98fadb078fa2262b21cbfc0
2023-01-17 10:31:50 -08:00
Alessio Quaglino 7f459ab8ca Print vertex IDs when inconsistent face is found.
PiperOrigin-RevId: 493311839
Change-Id: I0283d86bc6092fbe4f47b845fa8ec212bffdfa1a
2022-12-06 08:24:46 -08:00
Alessio Quaglino 9370039015 Use a non-symmetric tetrahedron for user_mesh_test.
PiperOrigin-RevId: 486658331
Change-Id: I96edd3b2aba916f9215661a7ba94271696690807
2022-11-07 07:43:08 -08:00
Nimrod Gileadi f556d4d94f Avoid out-of-bounds access when checking file extensions.
Include the '.' in the file extension check.

PiperOrigin-RevId: 474866478
Change-Id: I809ae975e4c8b00f17278735975a7d07e0748643
2022-09-16 11:49:33 -07:00
Alessio Quaglino 0e05e7ce52 Do not raise an error for flipped triangles if their area contribution is negligible.
PiperOrigin-RevId: 474552367
Change-Id: I9727a74e50a9bab9b04bb0de0b64e11587ed36f1
2022-09-15 07:07:00 -07:00
Alessio Quaglino 83ce236479 Process meshes for computing the correct scaling even when they have flipped faces.
PiperOrigin-RevId: 469414367
Change-Id: Ia5c75b4f2c9fd592c81a1ec659720f9820c0dfbb
2022-08-23 03:29:40 -07:00
Alessio Quaglino 95d5db3f81 Allow malformed meshes for visualization purposes. Throw error only if the mesh is required for inertia computation.
PiperOrigin-RevId: 466421062
Change-Id: I947dbc107e481bd8c328b1a6430ab2e88bc82fd6
2022-08-09 11:41:29 -07:00
Alessio Quaglino 5c5449bf82 Compute moment of inertia for concave and boundary meshes. Resolve #338.
- Mesh inertias can now be computed exactly for well-formed (no holes) non-convex meshes.
- To activate this feature, set `<compiler exactmeshinertia="true">` (defaults to `false`). This default may change in the future.
- Added `<geom shellinertia="true/false">` (defaults to `false`). When true, geom inertia is computed assuming all the mass is concentrated on the surface, and `density` is interpreted as surface density (mass/area). Currently only mesh geoms are supported.

PiperOrigin-RevId: 464368395
Change-Id: I17afd99b9b221c9d24ae951f6e63d5c61ff89820
2022-07-31 04:32:28 -07:00
Alessio Quaglino 8dd9971409 Raise error if mesh has flipped faces.
PiperOrigin-RevId: 461860424
Change-Id: Ib23c50cf7f64de1173404d2f65ad87177fab45b3
2022-07-19 05:47:46 -07:00
Yuval Tassa 981fa22302 Don't enforce minimum inertia at mesh loading.
Inertias of moving bodies are enforced to be greater mjMINVAL at model compilation, there is no need to enforce inertias at mesh load time. Tiny meshes could be static or part of a larger geom assembly, in which case their tiny inertia is not a problem.

Also, make error message for small masses/inertias more precise.

PiperOrigin-RevId: 451625216
Change-Id: I4b48d7a881e620d6fbb591ec77fbdacc7c03496c
2022-05-28 06:43:24 -07:00
Saran Tunyasuvunakool 1913a02b40 Initial open sourcing of MuJoCo.
PiperOrigin-RevId: 450374687
Change-Id: Ie3225a46ce095fc28ae8e63c326a640261f562bb
2022-05-23 01:08:49 -07:00