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Add support for loading 1D flex components from OBJ line segments.

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The obj_decoder plugin is updated to parse line segments ('l') from OBJ files and represent them as degenerate triangles. The user_flexcomp compiler now supports flex dimensions of 1, using these parsed line segments to define the 1D flex elements. The compile sample's error reporting is also improved.

PiperOrigin-RevId: 928566870
Change-Id: I6920729d1b1d5aeb391401c3245ebb1d4784c190
This commit is contained in:
Alessio Quaglino
2026-06-08 08:03:04 -07:00
committed by Copybara-Service
parent ac7f198536
commit 7a7dc7ccad
6 changed files with 107 additions and 33 deletions
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doc/changelog.rst
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@@ -16,6 +16,7 @@ General
- Added :ref:`mjs_makeFlex`, a new C API function equivalent to the :ref:`flexcomp<body-flexcomp>` element for
programmatically creating flex objects with auto-generated bodies, joints, and equality constraints. Exposed as
``body.make_flex()`` in Python.
- Added support for loading 1D flex components from OBJ line segments
- Significantly improved the quality of coarse convex hulls produced by the :ref:`maxhullvert<asset-mesh-maxhullvert>`
attribute by invoking Qhull's `Q9 <http://www.qhull.org/html/qh-optq.htm#Q9>`__ option.