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Improve MuJoCo actuator domain randomization#1773

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adenzler-nvidia merged 11 commits into
newton-physics:mainfrom
adenzler-nvidia:adenzler/actuator-domain-rand
Feb 27, 2026
Merged

Improve MuJoCo actuator domain randomization#1773
adenzler-nvidia merged 11 commits into
newton-physics:mainfrom
adenzler-nvidia:adenzler/actuator-domain-rand

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@adenzler-nvidia adenzler-nvidia commented Feb 25, 2026

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Summary

  • Expand per-world CTRL_DIRECT actuator fields and update the sync kernel
  • Encode MJCF dampratio in biasprm[2] with kv precedence and align shortcut setup
  • Defer derived recompute to notify_model_changed and compute lengthrange/const once
  • Add tests for MJCF dampratio parsing and multi-world actuator updates

Dependencies

  • Depends on a mujoco_warp update that should land first (per-world actuator field support + set_const_0 behavior).

Summary by CodeRabbit

Release Notes

  • New Features

    • Extended actuator property support: cranklength, gear ratios, control ranges, force ranges, and action ranges now accessible in multi-world configurations.
    • Improved per-world actuator property handling for consistent behavior across parallel environments.
  • Tests

    • Added comprehensive test coverage for runtime actuator property updates and multi-world actuator consistency.

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📝 Walkthrough

Walkthrough

This PR refactors MuJoCo actuator property handling by encoding dampratio into biasprm, introducing new per-world actuator properties (cranklength, acc0, lengthrange), expanding the actuator properties kernel to propagate multiple fields, and removing the separate dampratio custom attribute in favor of biasprm-based encoding.

Changes

Cohort / File(s) Summary
Kernel Expansion
newton/_src/solvers/mujoco/kernels.py
Extended update_ctrl_direct_actuator_properties_kernel to output six new actuator property fields (dynprm, ctrlrange, forcerange, actrange, gear, cranklength) alongside existing gains/biases, replacing previous bias-only per-world logic with multi-field population.
Solver Integration
newton/_src/solvers/mujoco/solver_mujoco.py
Removed actuator_dampratio custom attribute; added actuator_cranklength to public attributes and wiring; introduced selective recomputation flags (need_const_fixed, need_const_0, need_length_range); updated _update_actuator_properties and _init_actuators to propagate all actuator property fields per-world; removed sync of compiled actuator params back to custom attributes.
MJCF Parsing
newton/_src/utils/import_mjcf.py
Added dampratio parsing for position actuators; updated biasprm construction to encode dampratio in slot 2 when kv is not specified; added warning when both kv and dampratio are present with kv taking precedence.
Tests: Import & Solver
newton/tests/test_import_mjcf.py, newton/tests/test_mujoco_solver.py
Added new test classes (TestMjcfPositionDampratioParsing, TestActuatorLengthRangeRuntime, TestActuatorDampratioMultiWorldRuntime) validating dampratio encoding in biasprm, runtime property updates, and per-world actuator propagation; updated existing tests to check biasprm-based dampratio instead of separate attributes.
Test Infrastructure
newton/tests/test_menagerie_mujoco.py, newton/tests/test_mujoco_general_actuators.py
Added three new batched fields to MjWarpModel schema (actuator_cranklength, actuator_acc0, actuator_lengthrange); updated skip and compare field lists; adjusted expected test values for per-world dampratio resolution.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Possibly related issues

Possibly related PRs

Suggested reviewers

  • eric-heiden
  • jvonmuralt
  • Milad-Rakhsha-NV
🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name Status Explanation Resolution
Docstring Coverage ⚠️ Warning Docstring coverage is 71.43% which is insufficient. The required threshold is 80.00%. Write docstrings for the functions missing them to satisfy the coverage threshold.
✅ Passed checks (2 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title 'Improve MuJoCo actuator domain randomization' directly describes the main objective of expanding per-world CTRL_DIRECT actuator fields and domain randomization support, which is the primary focus of the PR.

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Actionable comments posted: 2

🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@newton/_src/solvers/mujoco/solver_mujoco.py`:
- Around line 3023-3028: The calls to the mujoco_warp API
(self._mujoco_warp.set_length_range, set_const_fixed, set_const_0) must be
guarded so missing attributes don't raise AttributeError in CI; update the block
that checks need_length_range/need_const_fixed/need_const_0 to either (a) check
hasattr(self._mujoco_warp, "<name>") before calling each method and raise a
clear RuntimeError/ImportError listing missing APIs, or (b) wrap the group in a
try/except AttributeError and raise a descriptive error that includes the
missing symbol names and the module (referencing self._mujoco_warp, mjw_model,
mjw_data), so callers fail fast with a clear compatibility message instead of
letting AttributeError leak.

In `@newton/tests/test_mujoco_solver.py`:
- Around line 7276-7282: Wrap the SolverMuJoCo construction in Test class
setUpClass in a try-except that catches ImportError and calls cls.skipTest(...)
so tests are skipped when mujoco_warp is unavailable; specifically, around the
sequence using newton.ModelBuilder(),
SolverMuJoCo.register_custom_attributes(builder), builder.add_mjcf(...),
cls.model = builder.finalize(), and cls.solver = SolverMuJoCo(cls.model) catch
ImportError and call cls.skipTest with a short message (use the same pattern
used elsewhere in the file), and apply the same change to
TestActuatorDampratioMultiWorldRuntime.setUpClass too.

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Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 25157ad and e77160484c8d974da7afad939309a1b3da443668.

📒 Files selected for processing (5)
  • newton/_src/solvers/mujoco/kernels.py
  • newton/_src/solvers/mujoco/solver_mujoco.py
  • newton/_src/utils/import_mjcf.py
  • newton/tests/test_import_mjcf.py
  • newton/tests/test_mujoco_solver.py

Comment thread newton/_src/solvers/mujoco/solver_mujoco.py
Comment thread newton/tests/test_mujoco_solver.py
Update minimum version in pyproject.toml, pinned version in
asv.conf.json, and regenerate uv.lock.
Expand per-world actuator fields and defer derived recompute.

Update MJCF parsing to encode dampratio in biasprm[2] with kv
precedence and align CTRL_DIRECT shortcut setup. Add parsing
and solver tests for dampratio and runtime lengthrange updates.
Verify per-world actuator_acc0 and dampratio resolution update
when mass/inertia are randomized across worlds.

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Actionable comments posted: 1

♻️ Duplicate comments (2)
newton/_src/solvers/mujoco/solver_mujoco.py (1)

3023-3028: ⚠️ Potential issue | 🔴 Critical

Guard mujoco_warp compatibility APIs before calling them.

Lines 3024-3028 still assume set_length_range, set_const_fixed, and set_const_0 exist. This remains a hard runtime failure path when dependency versions drift.

🔧 Proposed compatibility guard
-        if need_length_range:
-            self._mujoco_warp.set_length_range(self.mjw_model, self.mjw_data)
-        if need_const_fixed:
-            self._mujoco_warp.set_const_fixed(self.mjw_model, self.mjw_data)
-        if need_const_0:
-            self._mujoco_warp.set_const_0(self.mjw_model, self.mjw_data)
+        required_apis = []
+        if need_length_range:
+            required_apis.append("set_length_range")
+        if need_const_fixed:
+            required_apis.append("set_const_fixed")
+        if need_const_0:
+            required_apis.append("set_const_0")
+
+        missing_apis = [name for name in required_apis if not hasattr(self._mujoco_warp, name)]
+        if missing_apis:
+            raise RuntimeError(
+                "Incompatible mujoco_warp version. Missing required APIs: "
+                f"{missing_apis}. Please install the version required by this PR."
+            )
+
+        if need_length_range:
+            self._mujoco_warp.set_length_range(self.mjw_model, self.mjw_data)
+        if need_const_fixed:
+            self._mujoco_warp.set_const_fixed(self.mjw_model, self.mjw_data)
+        if need_const_0:
+            self._mujoco_warp.set_const_0(self.mjw_model, self.mjw_data)
#!/bin/bash
set -euo pipefail

python - <<'PY'
import importlib

mw = importlib.import_module("mujoco_warp")
required = ("set_length_range", "set_const_fixed", "set_const_0")

print("mujoco_warp module:", getattr(mw, "__file__", "<unknown>"))
missing = [name for name in required if not hasattr(mw, name)]

for name in required:
    print(f"{name}: {hasattr(mw, name)}")

if missing:
    raise SystemExit(f"Missing required mujoco_warp APIs: {missing}")
PY
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@newton/_src/solvers/mujoco/solver_mujoco.py` around lines 3023 - 3028, The
code calls compatibility functions on self._mujoco_warp unguarded; update the
block that uses need_length_range/need_const_fixed/need_const_0 to check for the
API before calling it (e.g., use hasattr(self._mujoco_warp, "set_length_range")
etc.), and only invoke self._mujoco_warp.set_length_range(self.mjw_model,
self.mjw_data), set_const_fixed(...), set_const_0(...) when those attributes
exist; keep existing need_* guards but add the hasattr checks and optionally log
or noop when a function is missing so the code fails gracefully across
mujoco_warp versions.
newton/tests/test_mujoco_solver.py (1)

7276-7282: ⚠️ Potential issue | 🟠 Major

Guard class setup with ImportError skip for optional MuJoCo/MJWarp availability.

Both new test classes instantiate SolverMuJoCo in setUpClass without fallback, so environments missing MuJoCo/MJWarp will fail the class setup instead of skipping.

Proposed fix
 class TestActuatorLengthRangeRuntime(unittest.TestCase):
     `@classmethod`
     def setUpClass(cls):
-        builder = newton.ModelBuilder()
-        SolverMuJoCo.register_custom_attributes(builder)
-        builder.add_mjcf(cls.MJCF, ctrl_direct=True)
-        cls.model = builder.finalize()
-        cls.solver = SolverMuJoCo(cls.model)
+        try:
+            builder = newton.ModelBuilder()
+            SolverMuJoCo.register_custom_attributes(builder)
+            builder.add_mjcf(cls.MJCF, ctrl_direct=True)
+            cls.model = builder.finalize()
+            cls.solver = SolverMuJoCo(cls.model)
+        except ImportError as e:
+            raise unittest.SkipTest(f"Requires mujoco_warp: {e}")
@@
 class TestActuatorDampratioMultiWorldRuntime(unittest.TestCase):
     `@classmethod`
     def setUpClass(cls):
-        robot_builder = newton.ModelBuilder()
-        SolverMuJoCo.register_custom_attributes(robot_builder)
-        robot_builder.add_mjcf(cls.MJCF, ctrl_direct=True)
-        builder = newton.ModelBuilder()
-        SolverMuJoCo.register_custom_attributes(builder)
-        builder.replicate(robot_builder, 2)
-        cls.model = builder.finalize()
-        cls.solver = SolverMuJoCo(cls.model)
+        try:
+            robot_builder = newton.ModelBuilder()
+            SolverMuJoCo.register_custom_attributes(robot_builder)
+            robot_builder.add_mjcf(cls.MJCF, ctrl_direct=True)
+            builder = newton.ModelBuilder()
+            SolverMuJoCo.register_custom_attributes(builder)
+            builder.replicate(robot_builder, 2)
+            cls.model = builder.finalize()
+            cls.solver = SolverMuJoCo(cls.model)
+        except ImportError as e:
+            raise unittest.SkipTest(f"Requires mujoco_warp: {e}")
#!/bin/bash
python - <<'PY'
import re
from pathlib import Path

text = Path("newton/tests/test_mujoco_solver.py").read_text()
for cls in ("TestActuatorLengthRangeRuntime", "TestActuatorDampratioMultiWorldRuntime"):
    block = re.search(rf"class {cls}\b(.*?)(?=\nclass |\Z)", text, re.S)
    setup = re.search(r"def setUpClass\(cls\):(.*?)(?=\n\s*def |\Z)", block.group(1), re.S) if block else None
    s = setup.group(1) if setup else ""
    has_guard = ("except ImportError" in s) or ("SkipTest" in s)
    print(f"{cls}: has_importerror_skip_guard={has_guard}")
PY

Based on learnings: In tests for the Newton solver, prefer using SolverMuJoCo-mediated MuJoCo access and guard optional behavior with pytest.importorskip or try/except ImportError to skip gracefully when MJWarp is unavailable.

Also applies to: 7316-7325

🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@newton/tests/test_mujoco_solver.py` around lines 7276 - 7282, Wrap the
MuJoCo/MJWarp-dependent class setup in setUpClass with a guard that skips the
whole test class when the optional dependency is missing: attempt to import or
acquire MuJoCo (use pytest.importorskip("mujoco") or catch
ImportError/ModuleNotFoundError) before calling
SolverMuJoCo.register_custom_attributes, builder.add_mjcf, or instantiating
SolverMuJoCo; if the import fails call unittest.SkipTest (or pytest.skip) so the
classes (e.g., TestActuatorLengthRangeRuntime and
TestActuatorDampratioMultiWorldRuntime) do not fail during class setup. Ensure
the guard surrounds the code that constructs builder and assigns
cls.model/cls.solver so no MuJoCo-specific objects are created when the
dependency is absent.
🧹 Nitpick comments (1)
newton/tests/test_import_mjcf.py (1)

6346-6354: Add a fixture-size sanity check before index-based assertions.

Current checks assume exactly two actuators in fixed order. A quick shape/count assertion would make failures more diagnostic if fixture setup changes later.

🔧 Suggested small hardening change
     def test_dampratio_encoded_in_biasprm(self):
         """dampratio should be stored as unresolved biasprm[2] > 0."""
         biasprm = self.model.mujoco.actuator_biasprm.numpy()
+        self.assertEqual(biasprm.shape[0], 2, "Expected exactly two actuators in this fixture")
         self.assertAlmostEqual(float(biasprm[0, 2]), 0.7, places=6)

     def test_kv_wins_over_dampratio(self):
         """kv should override dampratio and set biasprm[2] negative."""
         biasprm = self.model.mujoco.actuator_biasprm.numpy()
+        self.assertEqual(biasprm.shape[0], 2, "Expected exactly two actuators in this fixture")
         self.assertAlmostEqual(float(biasprm[1, 2]), -3.0, places=6)
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@newton/tests/test_import_mjcf.py` around lines 6346 - 6354, Add a quick
fixture-size sanity check before the index-based assertions in
test_dampratio_encoded_in_biasprm and test_kv_wins_over_dampratio: verify the
actuator_biasprm array from self.model.mujoco.actuator_biasprm has the expected
number of rows (e.g., assertEqual or assertGreaterEqual on biasprm.shape[0] or
biasprm.shape) before accessing biasprm[0,2] and biasprm[1,2]; this will produce
clearer failures if the fixture changes or actuators are reordered.
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@newton/_src/solvers/mujoco/solver_mujoco.py`:
- Around line 1446-1456: The custom attribute "actuator_cranklength" is
registered via ModelBuilder.CustomAttribute but never forwarded into actuator
creation, so _init_actuators() must include it in the general_args passed to
spec.add_actuator(...) (and the CPU-mode/initial compiled actuator path) so
authored cranklength values are applied; update _init_actuators() to read
"actuator_cranklength" (or its mjcf name "cranklength") from the
builder/attributes and add it to general_args before calling
spec.add_actuator(...) (and ensure the same parameter is provided for the
CPU/compiled actuator initialization code paths).

---

Duplicate comments:
In `@newton/_src/solvers/mujoco/solver_mujoco.py`:
- Around line 3023-3028: The code calls compatibility functions on
self._mujoco_warp unguarded; update the block that uses
need_length_range/need_const_fixed/need_const_0 to check for the API before
calling it (e.g., use hasattr(self._mujoco_warp, "set_length_range") etc.), and
only invoke self._mujoco_warp.set_length_range(self.mjw_model, self.mjw_data),
set_const_fixed(...), set_const_0(...) when those attributes exist; keep
existing need_* guards but add the hasattr checks and optionally log or noop
when a function is missing so the code fails gracefully across mujoco_warp
versions.

In `@newton/tests/test_mujoco_solver.py`:
- Around line 7276-7282: Wrap the MuJoCo/MJWarp-dependent class setup in
setUpClass with a guard that skips the whole test class when the optional
dependency is missing: attempt to import or acquire MuJoCo (use
pytest.importorskip("mujoco") or catch ImportError/ModuleNotFoundError) before
calling SolverMuJoCo.register_custom_attributes, builder.add_mjcf, or
instantiating SolverMuJoCo; if the import fails call unittest.SkipTest (or
pytest.skip) so the classes (e.g., TestActuatorLengthRangeRuntime and
TestActuatorDampratioMultiWorldRuntime) do not fail during class setup. Ensure
the guard surrounds the code that constructs builder and assigns
cls.model/cls.solver so no MuJoCo-specific objects are created when the
dependency is absent.

---

Nitpick comments:
In `@newton/tests/test_import_mjcf.py`:
- Around line 6346-6354: Add a quick fixture-size sanity check before the
index-based assertions in test_dampratio_encoded_in_biasprm and
test_kv_wins_over_dampratio: verify the actuator_biasprm array from
self.model.mujoco.actuator_biasprm has the expected number of rows (e.g.,
assertEqual or assertGreaterEqual on biasprm.shape[0] or biasprm.shape) before
accessing biasprm[0,2] and biasprm[1,2]; this will produce clearer failures if
the fixture changes or actuators are reordered.

ℹ️ Review info

Configuration used: Path: .coderabbit.yml

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between e77160484c8d974da7afad939309a1b3da443668 and 4ef96c1.

⛔ Files ignored due to path filters (1)
  • uv.lock is excluded by !**/*.lock
📒 Files selected for processing (7)
  • asv.conf.json
  • newton/_src/solvers/mujoco/kernels.py
  • newton/_src/solvers/mujoco/solver_mujoco.py
  • newton/_src/utils/import_mjcf.py
  • newton/tests/test_import_mjcf.py
  • newton/tests/test_mujoco_solver.py
  • pyproject.toml
✅ Files skipped from review due to trivial changes (1)
  • asv.conf.json
🚧 Files skipped from review as they are similar to previous changes (1)
  • newton/_src/utils/import_mjcf.py

Comment thread newton/_src/solvers/mujoco/solver_mujoco.py
The cranklength custom attribute was registered and propagated at
runtime but never forwarded into general_args during initial
spec.add_actuator() creation, so compiled models started with the
default (0.0) instead of the authored value.

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Actionable comments posted: 1

Caution

Some comments are outside the diff and can’t be posted inline due to platform limitations.

⚠️ Outside diff range comments (1)
newton/_src/solvers/mujoco/solver_mujoco.py (1)

5784-5830: ⚠️ Potential issue | 🟠 Major

Runtime range sync can clobber compiler-resolved autolimits/inheritrange.

_init_actuators() correctly uses actuator_has_*range to only pass authored ranges, but _update_actuator_properties() now writes actuator_ctrlrange/forcerange/actrange unconditionally. This can overwrite compiled values (especially right after notify_model_changed(SolverNotifyFlags.ALL)), changing actuator behavior for actuators that did not explicitly author ranges.

🔧 Proposed fix (gate runtime range writes with has_* flags)
@@
         actuator_dynprm = getattr(mujoco_attrs, "actuator_dynprm", None)
+        actuator_has_ctrlrange = getattr(mujoco_attrs, "actuator_has_ctrlrange", None)
         actuator_ctrlrange = getattr(mujoco_attrs, "actuator_ctrlrange", None)
+        actuator_has_forcerange = getattr(mujoco_attrs, "actuator_has_forcerange", None)
         actuator_forcerange = getattr(mujoco_attrs, "actuator_forcerange", None)
+        actuator_has_actrange = getattr(mujoco_attrs, "actuator_has_actrange", None)
         actuator_actrange = getattr(mujoco_attrs, "actuator_actrange", None)
         actuator_gear = getattr(mujoco_attrs, "actuator_gear", None)
         actuator_cranklength = getattr(mujoco_attrs, "actuator_cranklength", None)
         if (
             actuator_gainprm is None
             or actuator_biasprm is None
             or actuator_dynprm is None
+            or actuator_has_ctrlrange is None
             or actuator_ctrlrange is None
+            or actuator_has_forcerange is None
             or actuator_forcerange is None
+            or actuator_has_actrange is None
             or actuator_actrange is None
             or actuator_gear is None
             or actuator_cranklength is None
         ):
             return
@@
                 actuator_gainprm,
                 actuator_biasprm,
                 actuator_dynprm,
+                actuator_has_ctrlrange,
                 actuator_ctrlrange,
+                actuator_has_forcerange,
                 actuator_forcerange,
+                actuator_has_actrange,
                 actuator_actrange,
                 actuator_gear,
                 actuator_cranklength,
                 actuators_per_world,

And in newton/_src/solvers/mujoco/kernels.py, update update_ctrl_direct_actuator_properties_kernel to conditionally write each range only when its corresponding has_* flag is set.

🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@newton/_src/solvers/mujoco/solver_mujoco.py` around lines 5784 - 5830,
_update_actuator_properties() and its kernel
update_ctrl_direct_actuator_properties_kernel are currently writing
actuator_ctrlrange/forcerange/actrange unconditionally and can overwrite
compiler-resolved autolimits; change the Python call to pass the boolean flags
(actuator_has_ctrlrange, actuator_has_forcerange, actuator_has_actrange) into
wp.launch inputs and modify update_ctrl_direct_actuator_properties_kernel to
check those has_* flags before writing each corresponding range (only write
ctrlrange if actuator_has_ctrlrange is true, etc.), leaving other
compiled/inherited ranges untouched; also ensure the kernel still writes
gainp/biasp/dynprm/unconditional fields as before and that the new boolean
arrays are sized/paired consistently with actuator indices used in the kernel.
🧹 Nitpick comments (1)
newton/tests/test_mujoco_solver.py (1)

7558-7569: Consider adding a multi-world variant for gear→lengthrange runtime updates.

Current assertions only exercise world 0. A 2-world setup with distinct per-world gear values would better guard against world-index propagation regressions.

🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@newton/tests/test_mujoco_solver.py` around lines 7558 - 7569, Add a 2-world
variant of test_lengthrange_updates_with_gear that sets distinct per-world gear
values and verifies actuator_lengthrange updates for each world; specifically,
using the existing test (test_lengthrange_updates_with_gear) expand the setup to
create/check two worlds by reading mjw_model.actuator_lengthrange.numpy()[w,0]
and mjw_model.jnt_range.numpy()[w,0] for w in {0,1}, assign different values
into model.mujoco.actuator_gear.numpy()[w,0], call
model.mujoco.actuator_gear.assign(...) and then call
self.solver.notify_model_changed(SolverNotifyFlags.ACTUATOR_PROPERTIES), and
assert that each world's lr equals its jnt_range multiplied by the per-world
gear (e.g., 2.0 for world 0, 3.0 for world 1) to catch world-index propagation
regressions.
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@newton/tests/test_mujoco_solver.py`:
- Around line 7488-7496: Record the pre-update resolved damping value from
self.solver.mjw_model.actuator_biasprm.numpy()[0,0,2] before changing biasprm,
then after assigning biasprm[0,2]=0.5 and calling
self.solver.notify_model_changed(SolverNotifyFlags.ACTUATOR_PROPERTIES) read the
new resolved value and assert it both differs from the pre-update value and
equals the expected resolved damping for dampratio=0.5 (compute expected using
the same resolver used by the codepath, e.g. the set_const_0 resolution logic or
internal resolver helper used by the solver). Include references to
test_runtime_dampratio_update, self.solver.notify_model_changed, and
self.solver.mjw_model.actuator_biasprm to locate the changes.

---

Outside diff comments:
In `@newton/_src/solvers/mujoco/solver_mujoco.py`:
- Around line 5784-5830: _update_actuator_properties() and its kernel
update_ctrl_direct_actuator_properties_kernel are currently writing
actuator_ctrlrange/forcerange/actrange unconditionally and can overwrite
compiler-resolved autolimits; change the Python call to pass the boolean flags
(actuator_has_ctrlrange, actuator_has_forcerange, actuator_has_actrange) into
wp.launch inputs and modify update_ctrl_direct_actuator_properties_kernel to
check those has_* flags before writing each corresponding range (only write
ctrlrange if actuator_has_ctrlrange is true, etc.), leaving other
compiled/inherited ranges untouched; also ensure the kernel still writes
gainp/biasp/dynprm/unconditional fields as before and that the new boolean
arrays are sized/paired consistently with actuator indices used in the kernel.

---

Nitpick comments:
In `@newton/tests/test_mujoco_solver.py`:
- Around line 7558-7569: Add a 2-world variant of
test_lengthrange_updates_with_gear that sets distinct per-world gear values and
verifies actuator_lengthrange updates for each world; specifically, using the
existing test (test_lengthrange_updates_with_gear) expand the setup to
create/check two worlds by reading mjw_model.actuator_lengthrange.numpy()[w,0]
and mjw_model.jnt_range.numpy()[w,0] for w in {0,1}, assign different values
into model.mujoco.actuator_gear.numpy()[w,0], call
model.mujoco.actuator_gear.assign(...) and then call
self.solver.notify_model_changed(SolverNotifyFlags.ACTUATOR_PROPERTIES), and
assert that each world's lr equals its jnt_range multiplied by the per-world
gear (e.g., 2.0 for world 0, 3.0 for world 1) to catch world-index propagation
regressions.

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  • newton/_src/solvers/mujoco/solver_mujoco.py
  • newton/_src/utils/import_mjcf.py
  • newton/tests/test_import_mjcf.py
  • newton/tests/test_mujoco_solver.py
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  • newton/_src/utils/import_mjcf.py

Comment thread newton/tests/test_mujoco_solver.py
The test previously sampled contact forces at a single simulation step,
which is fragile because bodies physically oscillate between contact and
no-contact states near equilibrium. This caused flaky failures where the
measured z-force could be 0 or ~2x expected depending on which phase the
final step landed on.

Average forces over the last 10 steps to smooth out per-step oscillation
and reliably recover the expected steady-state contact forces within the
existing 1% tolerance.
…nvidia/newton into adenzler/actuator-domain-rand

# Conflicts:
#	asv.conf.json
#	pyproject.toml
#	uv.lock
@adenzler-nvidia adenzler-nvidia marked this pull request as ready for review February 26, 2026 14:12
Update menagerie test batched fields list to include actuator_cranklength,
actuator_acc0, and actuator_lengthrange which are now tiled to (nworld, ...)
by the solver. Add actuator_lengthrange to skip fields since Newton computes
it via set_length_range but native put_model leaves it zeroed.

Update multiworld actuator test to expect per-world biasprm[2] values now
that the compiler-resolved dampratio sync has been removed.
@codecov

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Codecov Report

❌ Patch coverage is 97.50000% with 1 line in your changes missing coverage. Please review.
✅ All tests successful. No failed tests found.

Files with missing lines Patch % Lines
newton/_src/utils/import_mjcf.py 87.50% 1 Missing ⚠️

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jvonmuralt previously approved these changes Feb 26, 2026

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Nice improvement to the actuator domain randomization architecture. Encoding dampratio directly in biasprm[2] (positive = unresolved dampratio, negative = resolved kv) and centralizing the derived recomputation via set_const_0/set_const_fixed/set_length_range in notify_model_changed is much cleaner than the old _sync_compiled_actuator_params round-trip. Per-world dampratio variation now works properly, and the deferred recompute avoids redundant work when multiple flags are set.

Two items flagged as inline comments:

  1. Dead code: _sync_compiled_actuator_params method, its kernel, and import are still present after the call was removed.

  2. Unconditional range writes: _update_actuator_properties now writes ctrlrange/forcerange/actrange unconditionally, but _init_actuators carefully gates these with has_*range flags for autolimits/inheritrange. Worth confirming this doesn't clobber compiler-resolved ranges.

Minor:

  • The biasprm[2] sign convention is a key design decision — a brief note in the _update_actuator_properties docstring or near the kernel would help future readers.
  • test_runtime_dampratio_update only asserts resolved < 0 — comparing pre vs post values would make it a stronger regression test.

Comment thread newton/_src/solvers/mujoco/solver_mujoco.py
Comment thread newton/_src/solvers/mujoco/solver_mujoco.py
Remove the unused _sync_compiled_actuator_params method, its kernel
(sync_compiled_actuator_params_kernel), and the import. These are no
longer needed after the biasprm[2] encoding + set_const_0 flow replaced
the post-put_model sync approach.

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Both items addressed — dead code cleaned up and range write safety clarified. LGTM.

@adenzler-nvidia adenzler-nvidia added this pull request to the merge queue Feb 27, 2026
@adenzler-nvidia adenzler-nvidia added this to the 1.0 Release milestone Feb 27, 2026
@github-merge-queue github-merge-queue Bot removed this pull request from the merge queue due to failed status checks Feb 27, 2026
@adenzler-nvidia adenzler-nvidia added this pull request to the merge queue Feb 27, 2026
Merged via the queue into newton-physics:main with commit b69b846 Feb 27, 2026
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adenzler-nvidia added a commit to adenzler-nvidia/newton that referenced this pull request Feb 27, 2026
vastsoun added a commit to vastsoun/newton that referenced this pull request Mar 3, 2026
* [Warp Raytrace] Added device parameter (newton-physics#1544)

* [Warp Raytrace] Added device parameter to previously overlooked call (newton-physics#1545)

* SolverMuJoCo: Fix tolerance clamping in update_solver_options_kernel (newton-physics#1546)

* Change default shape_ke to align with MuJoCo, parse geom solref from MJCF for contact stiffness/damping (newton-physics#1491)

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* Fix log_shapes broadcasting for length-1 warp arrays (newton-physics#1550)

* Fix XPBD restitution particle index (newton-physics#1557)

* Out-of-Bound memory read in example_diffsim_bear newton-physics#1386 (newton-physics#1533)

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* Add versioned documentation deployment to GitHub Pages (newton-physics#1560)

* Fix broken documentation links after versioned docs deployment (newton-physics#1566)

* VBD New Features (newton-physics#1479)

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* Add banners to membership verification workflow steps (newton-physics#1569)

* Support cable junctions (newton-physics#1519)

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* Rename parameter I to inertia newton-physics#1543 (newton-physics#1551)

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* Fix example_robot_anymal_c_walk.py (newton-physics#1574)

* Change everywhere linesearch to iterative (newton-physics#1573)

* Remove standard collision pipeline (newton-physics#1538)

* USD Plumbing MJC solver attributes through resolver and custom attribute framework (newton-physics#1463)

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Signed-off-by: Milad-Rakhsha-NV <167464435+Milad-Rakhsha-NV@users.noreply.github.com>
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* Fix child shape filtering (newton-physics#1559)

* Fix ViewerRerun ignoring hidden parameter in log_mesh and log_instances (newton-physics#1555)

* Make NxN and SAP broad phase respect filtered pairs (newton-physics#1554)

* Add --quiet flag to examples to suppress Warp messages (newton-physics#1585)

* Defer resolution of MESH_MAXHULLVERT default in importers (newton-physics#1587)

* Fix TypeError when finalizing SDF geometry with device kwarg (newton-physics#1586)

* Make MESH_MAXHULLVERT a static class attribute Mesh.MAX_HULL_VERTICES. (newton-physics#1598)

* Significant non-determinism in unified collision pipeline for anymal_c_walking example newton-physics#1505 (newton-physics#1588)

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* Add test for non-contiguous case (newton-physics#1549)

* Fix nightly Warp CI to resolve pre-release builds (newton-physics#1606)

* Verify default class and value handling (newton-physics#1556)

* SolverMuJoCo: Expand geom_margin to avoid OOB read with heterogeneous worlds (newton-physics#1607)

* Fix bug in control clear method (newton-physics#1602)

* Enable Use of Newton IK in Lab newton-physics#662 (newton-physics#1539)

Signed-off-by: Viktor Reutskyy <vreutskyy@nvidia.com>

* Fix import  of non-articulated joints (newton-physics#1535)

* Deduplicate _process_joint_custom_attributes frequency handling (newton-physics#1584)

* Add CI check for stale API docs and fix local build warnings (newton-physics#1570)

* Update Pillow 12.0.0 to 12.1.1 (newton-physics#1612)

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* Support floating,  base_joint and parent_body arguments for importers (newton-physics#1498)

* Fix contact buffer memory overestimation (newton-physics#1614)

* Configure banned-module-level-imports for ruff (newton-physics#1583)

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* Finalize the Recording API (newton-physics#1600)

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* update gitignore to ignore Claude Code sandbox files (newton-physics#1628)

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* Fix implicit biastype for position/velocity actuator shortcuts (newton-physics#1678)

* Fix include processor to respect meshdir/texturedir (newton-physics#1685)

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* Rename key to label and add hierarchical labels (newton-physics#1592) (newton-physics#1632)

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* Bump .python-version from 3.11 to 3.12 (newton-physics#1702)

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* Make ViewerUSD reuse existing USD layers for the same output path (newton-physics#1704)

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* Skip IK cube stacking example test (newton-physics#1713)

* Fix global pairs (world=-1) not exported to MuJoCo spec (newton-physics#1705)

* Reduce the memory consumption of hydroelastic contacts (newton-physics#1609)

* Fix flakiness cube stacking (newton-physics#1714)

* Fix collision shapes not toggleable in viewer UI (newton-physics#1715)

* Fix softbody examples table layout in README (newton-physics#1716)

* Standardize sensor APIs: label matching, keyword args, and update() method naming (newton-physics#1665)

* Fix intermittent crash in parallel test runner from Manager proxy race (newton-physics#1721)

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* Reduce default test runner verbosity (newton-physics#1723)

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* Expose qfrc_actuator from mujoco (newton-physics#1698)

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* Fix issue with mesh in rerun viewer (newton-physics#1768)

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* Bump version to 0.2.3

Prepare the package metadata for the v0.2.3 release tag.

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* Fix CUDA context corruption in SDF implementation (newton-physics#1792)

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* Fix MuJoCo margin/gap conversion (newton-physics#1785)

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* Missing unittest.main added back to test_import_mjcf.py.  Helps with F5 debugging in VS Code. (newton-physics#1796)

* Improve H1 example (newton-physics#1801)

Signed-off-by: Eric Heiden <eric-heiden@outlook.com>

* Fix ViewerViser.set_camera() (newton-physics#1805)

* Rename examples to follow prefix-first naming convention (newton-physics#1802)

* Improve MuJoCo actuator domain randomization (newton-physics#1773)

* Restore in_cup test in hydro example (newton-physics#1775)

* Fix `newton.geometry` imports and change of Mesh maxhullverts global constant

* Adapt to having both margin and gap arrays for each geom/shape

* Fix for newton.geometry API changes in primitive/narrowphase.py

* Fix removal of `BroadPhaseMode` IntEnum and revert to newton-sytle string literals

* WIP: Adapt geometry/unified.py to fix breaking changes to `newton.geometry` API

* First pass of API adjustments

* Patch more gaps (with respect to margin and gap renaming)

* GeoType.SDF was removed - reflect that in Kamino

* Introduce CoM position offsets w.r.t body frame and operations to convert between body CoM state and generic local body-fixed reference frames.

* Add caching of per-entity labels/names/keys in the Model subcontainers

* Remove SDF shape wrapper since it's now internal to mesh handling in CD pipelines

* Fix USD test assets

* Add Newton <--> Kamino joint type conversion operations and per-space default limit constants

* Add some cleanup to geometry and unified CD + UTs

* Add Newton <--> Kamino shape type conversion operations

* Apply new default joint coord limit constants to limits.py

* Adapt foubrar model builder and USD asset to produce the same result in sim example

* Purge "physical" goems and collapse all into a single group, and purge geometry "layers"

* Disable allocation per-joint wrenches by default and make them optional

* Make `Model` a dataclass

* Separate ModelData* containers into own `core/data.py` module

* Fix imports of ModelData

* Rename `Model` as `ModelKamino`

* Rename `ModelData` as `DataKamino`

* Rename `State` as `StateKamino`

* Rename `Control` as `ControlKamino`

* Rename `Limits` as `LimitsKamino`

* Rename `Contacts` as `ContactsKamino`

* Rename `ModelBuilder` as `ModelBuilderKamino`

* Make imports in test utilities relative

* Revise CD meta-data attributes and their computation in GeometryModel and ModelBuilderKamino

* Revise primitive CD pipeline

* Revise unified CD pipeline

* Revise CD front-end interfaces

* Fix UTs and relevant utils for interface changes to CD

* Change to `wp.DeviceLike` to account for upcoming deprecation of `Devicelike`

* Depracate legacy HDF5 data io (will be replaced in the future)

* Fix banned imports at module level

* Modify USD importer to detect articulations and order geoms and joints similarly to how the Newton `parse_usd` function does.

* Add conversion operation from `newton.Model` to `ModelKamino`

* Add data, state and control container conversions

* Add SolverKamino wrapper that fullfils newton integration interface

* Add newton integration examples

* Add SolverKamino to newton solver module imports

* WIP: fix problem with lambda_j being allocated for only kinematic constraints and failing on array copying

* Fix banned git import in benchmark

* Rename *Settings to *Config (#213)

* Rename SolverKaminoSettings -> SolverKaminoConfig

* Rename DualProblemSettings -> DualProblemConfig

* Rename CollisionDetectorSettings -> CollisionDetectorConfig

* Rename PADMMSettings -> PADMMConfig

* Rename ForwardKinematicsSolverSettings -> ForwardKinematicsSolverConfig

* Rename SimulatorSettings -> SimulatorConfig

* Add check for model compatibility in SolverKamino (#209)

* Fix device assignment in sparse CG test on CPU (#216)

* Replace Enum-type config attributes with Literal (#215)

* Replace warmstart mode config param with literal

* Replace contact warmstart mode config param with literal

* Replace rotation correction config param with literal

* Replace penalty update config param with literal

* Replace FK preconditioner option config param with literal

* Add post-init checks for dual/PADMM configs

* Rename FKPreconditionerOptions to FKPreconditionerType

* Remove WorldDescriptor from ModelKamino (#219)

* Add geom index offset array to model info

* Replace access to world description in model

* Remove world descriptor from model

* Fix computation of kinematics residual with sparse Jacobian (#220)

* Migrates `ModelKaminoSize` to it's own module to avoid circular dependency between core/model.py and core/state.py and rename it as `SizeKamino`.

* WIP: Fix SolverKamino wrapper

* Fix circular dependency in conversions.py

* Fix some broken unit tests and WIP to fix fourbar contact conversions and rendering

* Make some conversions @staticmethods instead, because they dont need common class attributes

* Fix declaration of custom state attributes and their conversion to/from newton and kamino

* WIP: Debug model conversion and newton sim examples

* Rename and cleanup start index array of per-world geoms

* Model conversion and newton sim examples now work.

* Make gravity conversion operation re-usable

* Migrates boxes_fourbar builder using newton.ModelBuilder to it's own module to prepare for migration.

* Use gravity conversion utility func in SolverKamino

* Add reusable joint-parameterization conversion utility

* Remove world-descriptor from model converter

* Rename helper converter that handles entity-local transforms

* Add some cleanup to DR Legs, ANYmal D and basic four-bar examples

* Fix module-level imports of additional kamino-specific development dependencies

* Fix module-level imports of additional kamino-specific development dependencies

* Fix erroneous merge conflict.

---------

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vastsoun added a commit to vastsoun/newton that referenced this pull request Mar 4, 2026
* [Warp Raytrace] Added device parameter (newton-physics#1544)

* [Warp Raytrace] Added device parameter to previously overlooked call (newton-physics#1545)

* SolverMuJoCo: Fix tolerance clamping in update_solver_options_kernel (newton-physics#1546)

* Change default shape_ke to align with MuJoCo, parse geom solref from MJCF for contact stiffness/damping (newton-physics#1491)

Signed-off-by: Alain Denzler <adenzler@nvidia.com>

* Fix log_shapes broadcasting for length-1 warp arrays (newton-physics#1550)

* Fix XPBD restitution particle index (newton-physics#1557)

* Out-of-Bound memory read in example_diffsim_bear newton-physics#1386 (newton-physics#1533)

Signed-off-by: Viktor Reutskyy <vreutskyy@nvidia.com>

* Add versioned documentation deployment to GitHub Pages (newton-physics#1560)

* Fix broken documentation links after versioned docs deployment (newton-physics#1566)

* VBD New Features (newton-physics#1479)

Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>

* Add banners to membership verification workflow steps (newton-physics#1569)

* Support cable junctions (newton-physics#1519)

Signed-off-by: JC <jumyungc@nvidia.com>

* Rename parameter I to inertia newton-physics#1543 (newton-physics#1551)

Signed-off-by: Viktor Reutskyy <vreutskyy@nvidia.com>

* Fix example_robot_anymal_c_walk.py (newton-physics#1574)

* Change everywhere linesearch to iterative (newton-physics#1573)

* Remove standard collision pipeline (newton-physics#1538)

* USD Plumbing MJC solver attributes through resolver and custom attribute framework (newton-physics#1463)

Signed-off-by: Milad Rakhsha <mrakhsha@nvidia.com>
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* Fix child shape filtering (newton-physics#1559)

* Fix ViewerRerun ignoring hidden parameter in log_mesh and log_instances (newton-physics#1555)

* Make NxN and SAP broad phase respect filtered pairs (newton-physics#1554)

* Add --quiet flag to examples to suppress Warp messages (newton-physics#1585)

* Defer resolution of MESH_MAXHULLVERT default in importers (newton-physics#1587)

* Fix TypeError when finalizing SDF geometry with device kwarg (newton-physics#1586)

* Make MESH_MAXHULLVERT a static class attribute Mesh.MAX_HULL_VERTICES. (newton-physics#1598)

* Significant non-determinism in unified collision pipeline for anymal_c_walking example newton-physics#1505 (newton-physics#1588)

Signed-off-by: Viktor Reutskyy <vreutskyy@nvidia.com>

* Add test for non-contiguous case (newton-physics#1549)

* Fix nightly Warp CI to resolve pre-release builds (newton-physics#1606)

* Verify default class and value handling (newton-physics#1556)

* SolverMuJoCo: Expand geom_margin to avoid OOB read with heterogeneous worlds (newton-physics#1607)

* Fix bug in control clear method (newton-physics#1602)

* Enable Use of Newton IK in Lab newton-physics#662 (newton-physics#1539)

Signed-off-by: Viktor Reutskyy <vreutskyy@nvidia.com>

* Fix import  of non-articulated joints (newton-physics#1535)

* Deduplicate _process_joint_custom_attributes frequency handling (newton-physics#1584)

* Add CI check for stale API docs and fix local build warnings (newton-physics#1570)

* Update Pillow 12.0.0 to 12.1.1 (newton-physics#1612)

* Prepare handling of mimic constraints in Newton (newton-physics#1523)

Signed-off-by: Eric Heiden <eric-heiden@outlook.com>
Signed-off-by: Eric Heiden <eheiden@nvidia.com>

* Support floating,  base_joint and parent_body arguments for importers (newton-physics#1498)

* Fix contact buffer memory overestimation (newton-physics#1614)

* Configure banned-module-level-imports for ruff (newton-physics#1583)

* Explicit `Contacts` instantiation with `Model.contacts()` and `CollisionPipeline.contacts()` (newton-physics#1445)

* Fix the quadruped benchmark regression (newton-physics#1615)

* Change default ignore_inertial_definitions from True to False (newton-physics#1537)

* Finalize the Recording API (newton-physics#1600)

* SolverMuJoCo: Fix ccd_iterations default (newton-physics#1631)

* update gitignore to ignore Claude Code sandbox files (newton-physics#1628)

* Add mimic joint support to SolverMuJoCo (newton-physics#1627)

Signed-off-by: Viktor Reutskyy <vreutskyy@nvidia.com>

* Add --no-cache-clear flag to test runner (newton-physics#1629)

* Update MuJoCo and MuJoCo Warp to 3.5.0 release (newton-physics#1633)

* Improve inertia parsing from USD (newton-physics#1605)

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* Remove standalone .typos.toml in favor of pyproject.toml config (newton-physics#1642)

* Heightfield support newton-physics#1189 (newton-physics#1547)

Signed-off-by: Viktor Reutskyy <vreutskyy@nvidia.com>

* Example_robot_policy: Replace ValueError with clean error for missing PhysX policy (newton-physics#1636)

Co-authored-by: Viktor Reutskyy <33062116+vreutskyy@users.noreply.github.com>

* Avoid unnecessary inflation of the contact reduction voxel aabb (newton-physics#1650)

* Rename num_worlds to world_count (newton-physics#1634)

Signed-off-by: Eric Heiden <eheiden@nvidia.com>

* Support parsing autolimits from MJCF (newton-physics#1651)

Signed-off-by: Viktor Reutskyy <vreutskyy@nvidia.com>

* Fix particle-shape restitution ignoring body velocity (newton-physics#1273) (newton-physics#1580)

* Add overflow warnings for narrow-phase collision buffers (newton-physics#1643)

Signed-off-by: Viktor Reutskyy <vreutskyy@nvidia.com>

* Documentation: add units to model/state docstrings (newton-physics#1649)

* fix(viewer): add missing JointType.BALL support to contact line kernel (newton-physics#1640)

* Make terrain mesh visual-only in anymal C walking example (newton-physics#1660)

Signed-off-by: Eric Heiden <eheiden@nvidia.com>

* Fix initialization of collider state in MPM finite difference mode (newton-physics#1652)

* docs: document ModelBuilder.default_shape_cfg (newton-physics#1662)

* Finalize the collision API (newton-physics#1581)

* Remove hardcoded subnet ID from AWS workflow (newton-physics#1664)

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* Attempt to fix AWS config (newton-physics#1666)

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* Update AWS workflows to g7e.2xlarge with multi-AZ failover (newton-physics#1669)

* fix(viewer-usd): disambiguate log_points colors for N=3 warp arrays (newton-physics#1661)

* Viewer gl optimizations (newton-physics#1656)

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* docs: add articulation workflow guidance and regression check (newton-physics#1663)

* fix(examples): propagate IK solution to model state in Franka example (newton-physics#1637)

* fix(deps,docs): bump nbconvert to 7.17.0 and fix ArticulationView doctest (newton-physics#1670)

* Cleanup and improve some example (newton-physics#1625)

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* Handle zero-mass bodies and flip ensure_nonstatic_links default (newton-physics#1635)

* Additional testing for ArticulationView (newton-physics#1527)

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* Update warp-lang nightly to 1.12.0.dev20260217 (newton-physics#1677)

* Change default friction coefficients to match MuJoCo (newton-physics#1681)

* Refactor mesh creation functions (newton-physics#1654)

Signed-off-by: Eric Heiden <eheiden@nvidia.com>

* Parse joint frictionloss from MJCF (newton-physics#1680)

* Fix free joint body_pos and add ref/qpos0 support for MuJoCo solver (newton-physics#1645)

* Fix root shapes in ArticulationView with fixed base (newton-physics#1639)

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* Use model collision methods and remove `create_collision_pipeline` from examples (newton-physics#1648)

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* Fix XPBD apply_joint_forces ignoring child joint transform (newton-physics#1582)

* Adjust SDF API (newton-physics#1644)

Co-authored-by: Eric Heiden <eheiden@nvidia.com>

* Optimize test suite runtime (~18% faster) (newton-physics#1689)

* Remove ensure_nonstatic_links option from importers (newton-physics#1682)

Signed-off-by: adenzler-nvidia <adenzler@nvidia.com>

* SolverMuJoCo: Add geom_margin support, align thickness default with MuJoCo and schemas (newton-physics#1653)

* refactor: privatize non-public solver internals (newton-physics#1683)

* Fix option parsing with multiple <option> elements from includes (newton-physics#1692)

* Bump warp-lang nightly and newton-usd-schemas (newton-physics#1693)

* Get rid of tkinter dependency (newton-physics#1676)

* Fix SDF example contact buffer overflow (newton-physics#1695)

* Fix implicit biastype for position/velocity actuator shortcuts (newton-physics#1678)

* Fix include processor to respect meshdir/texturedir (newton-physics#1685)

* Reduce cold-cache Warp compile time for geometry modules (newton-physics#1618)

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* Fix xyzw-to-wxyz quaternion conversion in body inertia kernel (newton-physics#1694)

* Rename key to label and add hierarchical labels (newton-physics#1592) (newton-physics#1632)

* Expose geometry SDF helpers on public API (newton-physics#1684)

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* Improve custom frequency handling from USD, parse MuJoCo actuators and tendons (newton-physics#1510)

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* Collapse fixed joints with non articulated bodies (newton-physics#1608)

* Fix renaming joint_key -> joint_label (newton-physics#1700)

Signed-off-by: Eric Heiden <eheiden@nvidia.com>

* Bump .python-version from 3.11 to 3.12 (newton-physics#1702)

* Replace CITATION.md with CITATION.cff (newton-physics#1706)

* Respect MJCF contype=conaffinity=0 via collision_group=0 (newton-physics#1703)

* Make ViewerUSD reuse existing USD layers for the same output path (newton-physics#1704)

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* Remove dead up-axis conversion from MuJoCo solver (newton-physics#1707)

* Skip IK cube stacking example test (newton-physics#1713)

* Fix global pairs (world=-1) not exported to MuJoCo spec (newton-physics#1705)

* Reduce the memory consumption of hydroelastic contacts (newton-physics#1609)

* Fix flakiness cube stacking (newton-physics#1714)

* Fix collision shapes not toggleable in viewer UI (newton-physics#1715)

* Fix softbody examples table layout in README (newton-physics#1716)

* Standardize sensor APIs: label matching, keyword args, and update() method naming (newton-physics#1665)

* Fix intermittent crash in parallel test runner from Manager proxy race (newton-physics#1721)

* Clean up inertia.py function arguments to match Mesh.create_* API (newton-physics#1719)

* Reduce default test runner verbosity (newton-physics#1723)

* Add menagerie comparison tests for SolverMuJoCo (newton-physics#1720)

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* Add spatial tendon support for MuJoCo solver (newton-physics#1687)

Signed-off-by: Viktor Reutskyy <vreutskyy@nvidia.com>

* Expose qfrc_actuator from mujoco (newton-physics#1698)

* Skip non-MODEL custom attributes in finalize validation (newton-physics#1734)

* Resolve inheritrange for position actuators in MJCF parser (newton-physics#1727)

* Support dampratio for position/velocity actuator shortcuts (newton-physics#1722)

* Limit concurrency to 1 (newton-physics#1736)

* Add a helper method for checking applied usd (newton-physics#1731)

* Enhance playback URL handling in ViewerViser (newton-physics#1742)

Signed-off-by: Eric Heiden <eric-heiden@outlook.com>

* Removed RenderShapeType (newton-physics#1748)

* Override only MassAPI attributes that have been authored (newton-physics#1688)

* Integration of newton-actuators  (newton-physics#1342)

Signed-off-by: jvonmuralt <jvonmuralt@nvidia.com>

* Fix ArticulationView crash with fixed-joint-only articulations (newton-physics#1726)

* Improve retrieval of Jupyter base URL in ViewerViser (newton-physics#1750)

Signed-off-by: Eric Heiden <eric-heiden@outlook.com>

* Disable dynamics testing for UR5e and Apollo tests to avoid CI flakiness (newton-physics#1755)

* Margin and Gap rename (newton-physics#1732)

* Vbd Demos Fixing (newton-physics#1740)

* Fix ViewerViser.log_lines method (newton-physics#1764)

Signed-off-by: Eric Heiden <eric-heiden@outlook.com>

* Update warp-lang dependency to 1.12.0rc1 (newton-physics#1763)

* Fix fromto capsule/cylinder orientation in MJCF parser (newton-physics#1741)

* fix: multi-world particle BVH indexing (newton-physics#1641)

Co-authored-by: Eric Heiden <eheiden@nvidia.com>

* Clean up unused and internal-only kwargs in SolverMuJoCo (newton-physics#1766)

* Parsing of the mimic joint and contact gap/margin from newton schemas (newton-physics#1690)

Signed-off-by: Milad Rakhsha <mrakhsha@nvidia.com>

* API Refactor v2 (newton-physics#1749)

Signed-off-by: Eric Heiden <eric-heiden@outlook.com>

* Support explicit geom mass attributes in MJCF (newton-physics#1744)

* Bump flask and werkzeug in lockfile for security (newton-physics#1769)

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* Split MJCF worldbody root bodies into separate articulations (newton-physics#1754)

* Expose VBD rigid contact forces for solver coupling (newton-physics#1745)

Signed-off-by: JC <jumyungc@nvidia.com>

* Add MJCF ellipsoid geom import and regression test (newton-physics#1772)

Co-authored-by: Cursor <cursoragent@cursor.com>

* Weld equality constraints parsed from mjcf are given Nan as the default value of torquescale. The correct default should be 1.0 (newton-physics#1760)

* Improve picking accuracy and stability (newton-physics#1712)

* Franka cloth demo improvement (newton-physics#1765)

* Support computing sensing object transforms & API cleanup (newton-physics#1759)

* Remove threading workaround (newton-physics#1751)

* [Warp Raytrace] Consolidated ray intersect functions, renamed Options to Config (newton-physics#1767)

* Improve README example gallery for PyPI compatibility (newton-physics#1776)

* Fix issue with mesh in rerun viewer (newton-physics#1768)

* Add PhysxMimicJointAPI parsing to USD importer (newton-physics#1735)

* Move some math functions to Warp (newton-physics#1717)

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* Add test to ensure MJCF xform argument is relative (newton-physics#1777)

Signed-off-by: Eric Heiden <eric-heiden@outlook.com>

* Emit diaginertia instead of fullinertia for diagonal body inertia (newton-physics#1780)

* Change default joint armature from 0.01 to 0 (newton-physics#1782)

* Fix default kp/kv for position and velocity actuators (newton-physics#1786)

* Lock body inertia after explicit MJCF <inertial> element (newton-physics#1784)

* Fix for MJCF actuator custom attributes (newton-physics#1783)

* Bump version to 0.2.3

Prepare the package metadata for the v0.2.3 release tag.

* Fix ViewerRerun rendering of instances from hidden meshes (newton-physics#1788)

* API cleanup (newton-physics#1789)

Signed-off-by: Eric Heiden <eric-heiden@outlook.com>

* BODY actuator target name bypasses body name de-duplication in SolverMuJoCo (newton-physics#1729)

* Use default density for visual geoms in MJCF import (newton-physics#1781)

* Fix GL viewer crash on Wayland (newton-physics#1793)

* Make USD xform parameter control absolute articulation placement (newton-physics#1771)

* Fix CUDA context corruption in SDF implementation (newton-physics#1792)

* Bump mujoco-warp dependency to 3.5.0.2 (newton-physics#1779)

* Fix MuJoCo margin/gap conversion (newton-physics#1785)

* Bump version to 1.1.0.dev0 (newton-physics#1798)

* Missing unittest.main added back to test_import_mjcf.py.  Helps with F5 debugging in VS Code. (newton-physics#1796)

* Improve H1 example (newton-physics#1801)

Signed-off-by: Eric Heiden <eric-heiden@outlook.com>

* Fix ViewerViser.set_camera() (newton-physics#1805)

* Rename examples to follow prefix-first naming convention (newton-physics#1802)

* Improve MuJoCo actuator domain randomization (newton-physics#1773)

* Restore in_cup test in hydro example (newton-physics#1775)

* Fix `newton.geometry` imports and change of Mesh maxhullverts global constant

* Adapt to having both margin and gap arrays for each geom/shape

* Fix for newton.geometry API changes in primitive/narrowphase.py

* Fix removal of `BroadPhaseMode` IntEnum and revert to newton-sytle string literals

* WIP: Adapt geometry/unified.py to fix breaking changes to `newton.geometry` API

* First pass of API adjustments

* Patch more gaps (with respect to margin and gap renaming)

* GeoType.SDF was removed - reflect that in Kamino

* Introduce CoM position offsets w.r.t body frame and operations to convert between body CoM state and generic local body-fixed reference frames.

* Add caching of per-entity labels/names/keys in the Model subcontainers

* Remove SDF shape wrapper since it's now internal to mesh handling in CD pipelines

* Fix USD test assets

* Add Newton <--> Kamino joint type conversion operations and per-space default limit constants

* Add some cleanup to geometry and unified CD + UTs

* Add Newton <--> Kamino shape type conversion operations

* Apply new default joint coord limit constants to limits.py

* Adapt foubrar model builder and USD asset to produce the same result in sim example

* Purge "physical" goems and collapse all into a single group, and purge geometry "layers"

* Disable allocation per-joint wrenches by default and make them optional

* Make `Model` a dataclass

* Separate ModelData* containers into own `core/data.py` module

* Fix imports of ModelData

* Rename `Model` as `ModelKamino`

* Rename `ModelData` as `DataKamino`

* Rename `State` as `StateKamino`

* Rename `Control` as `ControlKamino`

* Rename `Limits` as `LimitsKamino`

* Rename `Contacts` as `ContactsKamino`

* Rename `ModelBuilder` as `ModelBuilderKamino`

* Make imports in test utilities relative

* Revise CD meta-data attributes and their computation in GeometryModel and ModelBuilderKamino

* Revise primitive CD pipeline

* Revise unified CD pipeline

* Revise CD front-end interfaces

* Fix UTs and relevant utils for interface changes to CD

* Change to `wp.DeviceLike` to account for upcoming deprecation of `Devicelike`

* Depracate legacy HDF5 data io (will be replaced in the future)

* Fix banned imports at module level

* Modify USD importer to detect articulations and order geoms and joints similarly to how the Newton `parse_usd` function does.

* Add conversion operation from `newton.Model` to `ModelKamino`

* Add data, state and control container conversions

* Add SolverKamino wrapper that fullfils newton integration interface

* Add newton integration examples

* Add SolverKamino to newton solver module imports

* WIP: fix problem with lambda_j being allocated for only kinematic constraints and failing on array copying

* Fix banned git import in benchmark

* Rename *Settings to *Config (#213)

* Rename SolverKaminoSettings -> SolverKaminoConfig

* Rename DualProblemSettings -> DualProblemConfig

* Rename CollisionDetectorSettings -> CollisionDetectorConfig

* Rename PADMMSettings -> PADMMConfig

* Rename ForwardKinematicsSolverSettings -> ForwardKinematicsSolverConfig

* Rename SimulatorSettings -> SimulatorConfig

* Add check for model compatibility in SolverKamino (#209)

* Fix device assignment in sparse CG test on CPU (#216)

* Replace Enum-type config attributes with Literal (#215)

* Replace warmstart mode config param with literal

* Replace contact warmstart mode config param with literal

* Replace rotation correction config param with literal

* Replace penalty update config param with literal

* Replace FK preconditioner option config param with literal

* Add post-init checks for dual/PADMM configs

* Rename FKPreconditionerOptions to FKPreconditionerType

* Remove WorldDescriptor from ModelKamino (#219)

* Add geom index offset array to model info

* Replace access to world description in model

* Remove world descriptor from model

* Fix computation of kinematics residual with sparse Jacobian (#220)

* Migrates `ModelKaminoSize` to it's own module to avoid circular dependency between core/model.py and core/state.py and rename it as `SizeKamino`.

* WIP: Fix SolverKamino wrapper

* Fix circular dependency in conversions.py

* Fix some broken unit tests and WIP to fix fourbar contact conversions and rendering

* Make some conversions @staticmethods instead, because they dont need common class attributes

* Fix declaration of custom state attributes and their conversion to/from newton and kamino

* WIP: Debug model conversion and newton sim examples

* Rename and cleanup start index array of per-world geoms

* Model conversion and newton sim examples now work.

* Make gravity conversion operation re-usable

* Migrates boxes_fourbar builder using newton.ModelBuilder to it's own module to prepare for migration.

* Use gravity conversion utility func in SolverKamino

* Add reusable joint-parameterization conversion utility

* Remove world-descriptor from model converter

* Rename helper converter that handles entity-local transforms

* Add some cleanup to DR Legs, ANYmal D and basic four-bar examples

* Fix module-level imports of additional kamino-specific development dependencies

* Fix module-level imports of additional kamino-specific development dependencies

* Fix erroneous merge conflict.

---------

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vastsoun added a commit to vastsoun/newton that referenced this pull request Mar 4, 2026
* [Warp Raytrace] Added device parameter (newton-physics#1544)

* [Warp Raytrace] Added device parameter to previously overlooked call (newton-physics#1545)

* SolverMuJoCo: Fix tolerance clamping in update_solver_options_kernel (newton-physics#1546)

* Change default shape_ke to align with MuJoCo, parse geom solref from MJCF for contact stiffness/damping (newton-physics#1491)

Signed-off-by: Alain Denzler <adenzler@nvidia.com>

* Fix log_shapes broadcasting for length-1 warp arrays (newton-physics#1550)

* Fix XPBD restitution particle index (newton-physics#1557)

* Out-of-Bound memory read in example_diffsim_bear newton-physics#1386 (newton-physics#1533)

Signed-off-by: Viktor Reutskyy <vreutskyy@nvidia.com>

* Add versioned documentation deployment to GitHub Pages (newton-physics#1560)

* Fix broken documentation links after versioned docs deployment (newton-physics#1566)

* VBD New Features (newton-physics#1479)

Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>

* Add banners to membership verification workflow steps (newton-physics#1569)

* Support cable junctions (newton-physics#1519)

Signed-off-by: JC <jumyungc@nvidia.com>

* Rename parameter I to inertia newton-physics#1543 (newton-physics#1551)

Signed-off-by: Viktor Reutskyy <vreutskyy@nvidia.com>

* Fix example_robot_anymal_c_walk.py (newton-physics#1574)

* Change everywhere linesearch to iterative (newton-physics#1573)

* Remove standard collision pipeline (newton-physics#1538)

* USD Plumbing MJC solver attributes through resolver and custom attribute framework (newton-physics#1463)

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* Fix child shape filtering (newton-physics#1559)

* Fix ViewerRerun ignoring hidden parameter in log_mesh and log_instances (newton-physics#1555)

* Make NxN and SAP broad phase respect filtered pairs (newton-physics#1554)

* Add --quiet flag to examples to suppress Warp messages (newton-physics#1585)

* Defer resolution of MESH_MAXHULLVERT default in importers (newton-physics#1587)

* Fix TypeError when finalizing SDF geometry with device kwarg (newton-physics#1586)

* Make MESH_MAXHULLVERT a static class attribute Mesh.MAX_HULL_VERTICES. (newton-physics#1598)

* Significant non-determinism in unified collision pipeline for anymal_c_walking example newton-physics#1505 (newton-physics#1588)

Signed-off-by: Viktor Reutskyy <vreutskyy@nvidia.com>

* Add test for non-contiguous case (newton-physics#1549)

* Fix nightly Warp CI to resolve pre-release builds (newton-physics#1606)

* Verify default class and value handling (newton-physics#1556)

* SolverMuJoCo: Expand geom_margin to avoid OOB read with heterogeneous worlds (newton-physics#1607)

* Fix bug in control clear method (newton-physics#1602)

* Enable Use of Newton IK in Lab newton-physics#662 (newton-physics#1539)

Signed-off-by: Viktor Reutskyy <vreutskyy@nvidia.com>

* Fix import  of non-articulated joints (newton-physics#1535)

* Deduplicate _process_joint_custom_attributes frequency handling (newton-physics#1584)

* Add CI check for stale API docs and fix local build warnings (newton-physics#1570)

* Update Pillow 12.0.0 to 12.1.1 (newton-physics#1612)

* Prepare handling of mimic constraints in Newton (newton-physics#1523)

Signed-off-by: Eric Heiden <eric-heiden@outlook.com>
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* Support floating,  base_joint and parent_body arguments for importers (newton-physics#1498)

* Fix contact buffer memory overestimation (newton-physics#1614)

* Configure banned-module-level-imports for ruff (newton-physics#1583)

* Explicit `Contacts` instantiation with `Model.contacts()` and `CollisionPipeline.contacts()` (newton-physics#1445)

* Fix the quadruped benchmark regression (newton-physics#1615)

* Change default ignore_inertial_definitions from True to False (newton-physics#1537)

* Finalize the Recording API (newton-physics#1600)

* SolverMuJoCo: Fix ccd_iterations default (newton-physics#1631)

* update gitignore to ignore Claude Code sandbox files (newton-physics#1628)

* Add mimic joint support to SolverMuJoCo (newton-physics#1627)

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* Add --no-cache-clear flag to test runner (newton-physics#1629)

* Update MuJoCo and MuJoCo Warp to 3.5.0 release (newton-physics#1633)

* Improve inertia parsing from USD (newton-physics#1605)

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* Remove standalone .typos.toml in favor of pyproject.toml config (newton-physics#1642)

* Heightfield support newton-physics#1189 (newton-physics#1547)

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* Example_robot_policy: Replace ValueError with clean error for missing PhysX policy (newton-physics#1636)

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* Avoid unnecessary inflation of the contact reduction voxel aabb (newton-physics#1650)

* Rename num_worlds to world_count (newton-physics#1634)

Signed-off-by: Eric Heiden <eheiden@nvidia.com>

* Support parsing autolimits from MJCF (newton-physics#1651)

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* Fix particle-shape restitution ignoring body velocity (newton-physics#1273) (newton-physics#1580)

* Add overflow warnings for narrow-phase collision buffers (newton-physics#1643)

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* Documentation: add units to model/state docstrings (newton-physics#1649)

* fix(viewer): add missing JointType.BALL support to contact line kernel (newton-physics#1640)

* Make terrain mesh visual-only in anymal C walking example (newton-physics#1660)

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* Fix initialization of collider state in MPM finite difference mode (newton-physics#1652)

* docs: document ModelBuilder.default_shape_cfg (newton-physics#1662)

* Finalize the collision API (newton-physics#1581)

* Remove hardcoded subnet ID from AWS workflow (newton-physics#1664)

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* Attempt to fix AWS config (newton-physics#1666)

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* Update AWS workflows to g7e.2xlarge with multi-AZ failover (newton-physics#1669)

* fix(viewer-usd): disambiguate log_points colors for N=3 warp arrays (newton-physics#1661)

* Viewer gl optimizations (newton-physics#1656)

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* docs: add articulation workflow guidance and regression check (newton-physics#1663)

* fix(examples): propagate IK solution to model state in Franka example (newton-physics#1637)

* fix(deps,docs): bump nbconvert to 7.17.0 and fix ArticulationView doctest (newton-physics#1670)

* Cleanup and improve some example (newton-physics#1625)

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* Handle zero-mass bodies and flip ensure_nonstatic_links default (newton-physics#1635)

* Additional testing for ArticulationView (newton-physics#1527)

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* Update warp-lang nightly to 1.12.0.dev20260217 (newton-physics#1677)

* Change default friction coefficients to match MuJoCo (newton-physics#1681)

* Refactor mesh creation functions (newton-physics#1654)

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* Parse joint frictionloss from MJCF (newton-physics#1680)

* Fix free joint body_pos and add ref/qpos0 support for MuJoCo solver (newton-physics#1645)

* Fix root shapes in ArticulationView with fixed base (newton-physics#1639)

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* Use model collision methods and remove `create_collision_pipeline` from examples (newton-physics#1648)

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* Fix XPBD apply_joint_forces ignoring child joint transform (newton-physics#1582)

* Adjust SDF API (newton-physics#1644)

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* Optimize test suite runtime (~18% faster) (newton-physics#1689)

* Remove ensure_nonstatic_links option from importers (newton-physics#1682)

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* SolverMuJoCo: Add geom_margin support, align thickness default with MuJoCo and schemas (newton-physics#1653)

* refactor: privatize non-public solver internals (newton-physics#1683)

* Fix option parsing with multiple <option> elements from includes (newton-physics#1692)

* Bump warp-lang nightly and newton-usd-schemas (newton-physics#1693)

* Get rid of tkinter dependency (newton-physics#1676)

* Fix SDF example contact buffer overflow (newton-physics#1695)

* Fix implicit biastype for position/velocity actuator shortcuts (newton-physics#1678)

* Fix include processor to respect meshdir/texturedir (newton-physics#1685)

* Reduce cold-cache Warp compile time for geometry modules (newton-physics#1618)

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* Fix xyzw-to-wxyz quaternion conversion in body inertia kernel (newton-physics#1694)

* Rename key to label and add hierarchical labels (newton-physics#1592) (newton-physics#1632)

* Expose geometry SDF helpers on public API (newton-physics#1684)

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* Improve custom frequency handling from USD, parse MuJoCo actuators and tendons (newton-physics#1510)

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* Collapse fixed joints with non articulated bodies (newton-physics#1608)

* Fix renaming joint_key -> joint_label (newton-physics#1700)

Signed-off-by: Eric Heiden <eheiden@nvidia.com>

* Bump .python-version from 3.11 to 3.12 (newton-physics#1702)

* Replace CITATION.md with CITATION.cff (newton-physics#1706)

* Respect MJCF contype=conaffinity=0 via collision_group=0 (newton-physics#1703)

* Make ViewerUSD reuse existing USD layers for the same output path (newton-physics#1704)

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* Remove dead up-axis conversion from MuJoCo solver (newton-physics#1707)

* Skip IK cube stacking example test (newton-physics#1713)

* Fix global pairs (world=-1) not exported to MuJoCo spec (newton-physics#1705)

* Reduce the memory consumption of hydroelastic contacts (newton-physics#1609)

* Fix flakiness cube stacking (newton-physics#1714)

* Fix collision shapes not toggleable in viewer UI (newton-physics#1715)

* Fix softbody examples table layout in README (newton-physics#1716)

* Standardize sensor APIs: label matching, keyword args, and update() method naming (newton-physics#1665)

* Fix intermittent crash in parallel test runner from Manager proxy race (newton-physics#1721)

* Clean up inertia.py function arguments to match Mesh.create_* API (newton-physics#1719)

* Reduce default test runner verbosity (newton-physics#1723)

* Add menagerie comparison tests for SolverMuJoCo (newton-physics#1720)

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* Add spatial tendon support for MuJoCo solver (newton-physics#1687)

Signed-off-by: Viktor Reutskyy <vreutskyy@nvidia.com>

* Expose qfrc_actuator from mujoco (newton-physics#1698)

* Skip non-MODEL custom attributes in finalize validation (newton-physics#1734)

* Resolve inheritrange for position actuators in MJCF parser (newton-physics#1727)

* Support dampratio for position/velocity actuator shortcuts (newton-physics#1722)

* Limit concurrency to 1 (newton-physics#1736)

* Add a helper method for checking applied usd (newton-physics#1731)

* Enhance playback URL handling in ViewerViser (newton-physics#1742)

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* Removed RenderShapeType (newton-physics#1748)

* Override only MassAPI attributes that have been authored (newton-physics#1688)

* Integration of newton-actuators  (newton-physics#1342)

Signed-off-by: jvonmuralt <jvonmuralt@nvidia.com>

* Fix ArticulationView crash with fixed-joint-only articulations (newton-physics#1726)

* Improve retrieval of Jupyter base URL in ViewerViser (newton-physics#1750)

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* Disable dynamics testing for UR5e and Apollo tests to avoid CI flakiness (newton-physics#1755)

* Margin and Gap rename (newton-physics#1732)

* Vbd Demos Fixing (newton-physics#1740)

* Fix ViewerViser.log_lines method (newton-physics#1764)

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* Update warp-lang dependency to 1.12.0rc1 (newton-physics#1763)

* Fix fromto capsule/cylinder orientation in MJCF parser (newton-physics#1741)

* fix: multi-world particle BVH indexing (newton-physics#1641)

Co-authored-by: Eric Heiden <eheiden@nvidia.com>

* Clean up unused and internal-only kwargs in SolverMuJoCo (newton-physics#1766)

* Parsing of the mimic joint and contact gap/margin from newton schemas (newton-physics#1690)

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* API Refactor v2 (newton-physics#1749)

Signed-off-by: Eric Heiden <eric-heiden@outlook.com>

* Support explicit geom mass attributes in MJCF (newton-physics#1744)

* Bump flask and werkzeug in lockfile for security (newton-physics#1769)

Co-authored-by: Cursor <cursoragent@cursor.com>

* Split MJCF worldbody root bodies into separate articulations (newton-physics#1754)

* Expose VBD rigid contact forces for solver coupling (newton-physics#1745)

Signed-off-by: JC <jumyungc@nvidia.com>

* Add MJCF ellipsoid geom import and regression test (newton-physics#1772)

Co-authored-by: Cursor <cursoragent@cursor.com>

* Weld equality constraints parsed from mjcf are given Nan as the default value of torquescale. The correct default should be 1.0 (newton-physics#1760)

* Improve picking accuracy and stability (newton-physics#1712)

* Franka cloth demo improvement (newton-physics#1765)

* Support computing sensing object transforms & API cleanup (newton-physics#1759)

* Remove threading workaround (newton-physics#1751)

* [Warp Raytrace] Consolidated ray intersect functions, renamed Options to Config (newton-physics#1767)

* Improve README example gallery for PyPI compatibility (newton-physics#1776)

* Fix issue with mesh in rerun viewer (newton-physics#1768)

* Add PhysxMimicJointAPI parsing to USD importer (newton-physics#1735)

* Move some math functions to Warp (newton-physics#1717)

Signed-off-by: Eric Heiden <eheiden@nvidia.com>
Signed-off-by: Eric Heiden <eric-heiden@outlook.com>

* Add test to ensure MJCF xform argument is relative (newton-physics#1777)

Signed-off-by: Eric Heiden <eric-heiden@outlook.com>

* Emit diaginertia instead of fullinertia for diagonal body inertia (newton-physics#1780)

* Change default joint armature from 0.01 to 0 (newton-physics#1782)

* Fix default kp/kv for position and velocity actuators (newton-physics#1786)

* Lock body inertia after explicit MJCF <inertial> element (newton-physics#1784)

* Fix for MJCF actuator custom attributes (newton-physics#1783)

* Bump version to 0.2.3

Prepare the package metadata for the v0.2.3 release tag.

* Fix ViewerRerun rendering of instances from hidden meshes (newton-physics#1788)

* API cleanup (newton-physics#1789)

Signed-off-by: Eric Heiden <eric-heiden@outlook.com>

* BODY actuator target name bypasses body name de-duplication in SolverMuJoCo (newton-physics#1729)

* Use default density for visual geoms in MJCF import (newton-physics#1781)

* Fix GL viewer crash on Wayland (newton-physics#1793)

* Make USD xform parameter control absolute articulation placement (newton-physics#1771)

* Fix CUDA context corruption in SDF implementation (newton-physics#1792)

* Bump mujoco-warp dependency to 3.5.0.2 (newton-physics#1779)

* Fix MuJoCo margin/gap conversion (newton-physics#1785)

* Bump version to 1.1.0.dev0 (newton-physics#1798)

* Missing unittest.main added back to test_import_mjcf.py.  Helps with F5 debugging in VS Code. (newton-physics#1796)

* Improve H1 example (newton-physics#1801)

Signed-off-by: Eric Heiden <eric-heiden@outlook.com>

* Fix ViewerViser.set_camera() (newton-physics#1805)

* Rename examples to follow prefix-first naming convention (newton-physics#1802)

* Improve MuJoCo actuator domain randomization (newton-physics#1773)

* Restore in_cup test in hydro example (newton-physics#1775)

* Fix `newton.geometry` imports and change of Mesh maxhullverts global constant

* Adapt to having both margin and gap arrays for each geom/shape

* Fix for newton.geometry API changes in primitive/narrowphase.py

* Fix removal of `BroadPhaseMode` IntEnum and revert to newton-sytle string literals

* WIP: Adapt geometry/unified.py to fix breaking changes to `newton.geometry` API

* First pass of API adjustments

* Patch more gaps (with respect to margin and gap renaming)

* GeoType.SDF was removed - reflect that in Kamino

* Introduce CoM position offsets w.r.t body frame and operations to convert between body CoM state and generic local body-fixed reference frames.

* Add caching of per-entity labels/names/keys in the Model subcontainers

* Remove SDF shape wrapper since it's now internal to mesh handling in CD pipelines

* Fix USD test assets

* Add Newton <--> Kamino joint type conversion operations and per-space default limit constants

* Add some cleanup to geometry and unified CD + UTs

* Add Newton <--> Kamino shape type conversion operations

* Apply new default joint coord limit constants to limits.py

* Adapt foubrar model builder and USD asset to produce the same result in sim example

* Purge "physical" goems and collapse all into a single group, and purge geometry "layers"

* Disable allocation per-joint wrenches by default and make them optional

* Make `Model` a dataclass

* Separate ModelData* containers into own `core/data.py` module

* Fix imports of ModelData

* Rename `Model` as `ModelKamino`

* Rename `ModelData` as `DataKamino`

* Rename `State` as `StateKamino`

* Rename `Control` as `ControlKamino`

* Rename `Limits` as `LimitsKamino`

* Rename `Contacts` as `ContactsKamino`

* Rename `ModelBuilder` as `ModelBuilderKamino`

* Make imports in test utilities relative

* Revise CD meta-data attributes and their computation in GeometryModel and ModelBuilderKamino

* Revise primitive CD pipeline

* Revise unified CD pipeline

* Revise CD front-end interfaces

* Fix UTs and relevant utils for interface changes to CD

* Change to `wp.DeviceLike` to account for upcoming deprecation of `Devicelike`

* Depracate legacy HDF5 data io (will be replaced in the future)

* Fix banned imports at module level

* Modify USD importer to detect articulations and order geoms and joints similarly to how the Newton `parse_usd` function does.

* Add conversion operation from `newton.Model` to `ModelKamino`

* Add data, state and control container conversions

* Add SolverKamino wrapper that fullfils newton integration interface

* Add newton integration examples

* Add SolverKamino to newton solver module imports

* WIP: fix problem with lambda_j being allocated for only kinematic constraints and failing on array copying

* Fix banned git import in benchmark

* Rename *Settings to *Config (#213)

* Rename SolverKaminoSettings -> SolverKaminoConfig

* Rename DualProblemSettings -> DualProblemConfig

* Rename CollisionDetectorSettings -> CollisionDetectorConfig

* Rename PADMMSettings -> PADMMConfig

* Rename ForwardKinematicsSolverSettings -> ForwardKinematicsSolverConfig

* Rename SimulatorSettings -> SimulatorConfig

* Add check for model compatibility in SolverKamino (#209)

* Fix device assignment in sparse CG test on CPU (#216)

* Replace Enum-type config attributes with Literal (#215)

* Replace warmstart mode config param with literal

* Replace contact warmstart mode config param with literal

* Replace rotation correction config param with literal

* Replace penalty update config param with literal

* Replace FK preconditioner option config param with literal

* Add post-init checks for dual/PADMM configs

* Rename FKPreconditionerOptions to FKPreconditionerType

* Remove WorldDescriptor from ModelKamino (#219)

* Add geom index offset array to model info

* Replace access to world description in model

* Remove world descriptor from model

* Fix computation of kinematics residual with sparse Jacobian (#220)

* Migrates `ModelKaminoSize` to it's own module to avoid circular dependency between core/model.py and core/state.py and rename it as `SizeKamino`.

* WIP: Fix SolverKamino wrapper

* Fix circular dependency in conversions.py

* Fix some broken unit tests and WIP to fix fourbar contact conversions and rendering

* Make some conversions @staticmethods instead, because they dont need common class attributes

* Fix declaration of custom state attributes and their conversion to/from newton and kamino

* WIP: Debug model conversion and newton sim examples

* Rename and cleanup start index array of per-world geoms

* Model conversion and newton sim examples now work.

* Make gravity conversion operation re-usable

* Migrates boxes_fourbar builder using newton.ModelBuilder to it's own module to prepare for migration.

* Use gravity conversion utility func in SolverKamino

* Add reusable joint-parameterization conversion utility

* Remove world-descriptor from model converter

* Rename helper converter that handles entity-local transforms

* Add some cleanup to DR Legs, ANYmal D and basic four-bar examples

* Fix module-level imports of additional kamino-specific development dependencies

* Fix module-level imports of additional kamino-specific development dependencies

* Fix erroneous merge conflict.

---------

Signed-off-by: Alain Denzler <adenzler@nvidia.com>
Signed-off-by: Viktor Reutskyy <vreutskyy@nvidia.com>
Signed-off-by: JC <jumyungc@nvidia.com>
Signed-off-by: Milad Rakhsha <mrakhsha@nvidia.com>
Signed-off-by: Milad-Rakhsha-NV <167464435+Milad-Rakhsha-NV@users.noreply.github.com>
Signed-off-by: Eric Heiden <eric-heiden@outlook.com>
Signed-off-by: Eric Heiden <eheiden@nvidia.com>
Signed-off-by: Miles Macklin <mmacklin@nvidia.com>
Signed-off-by: adenzler-nvidia <adenzler@nvidia.com>
Signed-off-by: jvonmuralt <jvonmuralt@nvidia.com>
Co-authored-by: Daniela Hase <116915287+daniela-hase@users.noreply.github.com>
Co-authored-by: adenzler-nvidia <adenzler@nvidia.com>
Co-authored-by: Viktor Reutskyy <33062116+vreutskyy@users.noreply.github.com>
Co-authored-by: Eric Shi <97630937+shi-eric@users.noreply.github.com>
Co-authored-by: Anka Chen <AnkaChan@users.noreply.github.com>
Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>
Co-authored-by: JC-nvidia <116605903+jumyungc@users.noreply.github.com>
Co-authored-by: Kenny Vilella <kvilella@nvidia.com>
Co-authored-by: nvtw <110816143+nvtw@users.noreply.github.com>
Co-authored-by: Milad-Rakhsha-NV <167464435+Milad-Rakhsha-NV@users.noreply.github.com>
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Co-authored-by: Lennart Röstel <65088822+lenroe@users.noreply.github.com>
Co-authored-by: Eric Heiden <eheiden@nvidia.com>
Co-authored-by: jvonmuralt <jvonmuralt@nvidia.com>
Co-authored-by: camevor <camevor@nvidia.com>
Co-authored-by: mzamoramora-nvidia <mzamoramora@nvidia.com>
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Co-authored-by: Alessandro Roncone <alecive87@gmail.com>
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Co-authored-by: Miles Macklin <mmacklin@nvidia.com>
Co-authored-by: Gordon Yeoman <gyeomannvidia@users.noreply.github.com>
Co-authored-by: Lukasz Wawrzyniak <lwawrzyniak@nvidia.com>
Co-authored-by: Eric Heiden <eric-heiden@outlook.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: Viktor Reutskyy <vreutskyy@nvidia.com>
Co-authored-by: Lorenzo Terenzi <lorenzoterenzi96@gmail.com>
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mmacklin pushed a commit to mmacklin/newton that referenced this pull request Apr 7, 2026
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3 participants