Document compiler/usethread fix.

PiperOrigin-RevId: 855735924 Change-Id: I5b638ccf2a74194b363cf7c6436f78c1c3d9b0e1
2026-01-13 08:20:56 -08:00
parent a49576e469
commit 7e21f18fd3
2 changed files with 4 additions and 1 deletions
@@ -828,7 +828,7 @@ has any effect. The settings here are global and apply to the entire model.

 :at:`usethread`: :at-val:`[false, true], "true"`
   If this attribute is "true", the model compiler will run in multi-threaded mode. Currently multi-threading is used
-   for computing the length ranges of actuators and for parallel loading of meshes.
+   for computing the length ranges of actuators and for parallel loading and processing of meshes.

 .. _compiler-fusestatic:

@@ -65,6 +65,9 @@ Documentation

 Bug fixes
 ^^^^^^^^^
+- Multi threaded mesh processing, enabled by the :ref:`usethread<compiler-usethread>` compiler flag (on by default), was
+  in fact disabled by the flag. Fixing this bug speeds up compilation of mesh-heavy models by (up to) the number of
+  available cores.
 - The ``vertid`` argument of :ref:`mju_rayFlex` and :ref:`mju_raySkin` was marked as nullable but was not; it is now
  nullable.