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Updates app setting parameters to improve viewport rendering performance #3727

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Updates app setting parameters to improve viewport rendering performance #3727

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c856041
Updates app setting parameters to improve viewport rendering performance
kellyguo11 Oct 15, 2025
2e1755d
Merge branch 'main' into perf-improvement
kellyguo11 Oct 15, 2025
f1c2654
add note in 2.2 release notes for perf regression in physx
kellyguo11 Oct 16, 2025
ffcd2d1
Merge branch 'perf-improvement' of github.com:kellyguo11/IsaacLab-pub…
kellyguo11 Oct 16, 2025
e134be4
remove useFixedTimeStepping from app file as it's set in AppLauncher
kellyguo11 Oct 16, 2025
cf92046
Merge branch 'perf-improvement' of github.com:kellyguo11/IsaacLab-pub…
kellyguo11 Oct 16, 2025
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7 changes: 6 additions & 1 deletion apps/isaaclab.python.kit
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,7 @@ keywords = ["experience", "app", "usd"]
# Isaac Sim Extra
"isaacsim.asset.importer.mjcf" = {}
"isaacsim.asset.importer.urdf" = {}
"omni.kit.loop-isaac" = {}
"omni.physx.bundle" = {}
"omni.physx.tensors" = {}
"omni.replicator.core" = {}
Expand Down Expand Up @@ -133,6 +134,11 @@ metricsAssembler.changeListenerEnabled = false
# set the default ros bridge to disable on startup
isaac.startup.ros_bridge_extension = ""

# rendering performance improvements for the viewer
app.usdrt.hierarchy.partialGpuUpdate = 1
app.runLoops.main.rateLimitEnabled = false
app.runLoops.main.manualModeEnabled = true

# Disable for base application
[settings."filter:platform"."windows-x86_64"]
isaac.startup.ros_bridge_extension = ""
Expand Down Expand Up @@ -171,7 +177,6 @@ font.size = 16
gatherRenderResults = true # True to prevent artifacts in multiple viewport configurations, can be set to false for better performance in some cases
hangDetector.enabled = true
hangDetector.timeout = 120
player.useFixedTimeStepping = true
settings.fabricDefaultStageFrameHistoryCount = 3 # needed for omni.syntheticdata TODO105 still true?
settings.persistent = true # settings are persistent for this app

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3 changes: 3 additions & 0 deletions docs/source/refs/release_notes.rst
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Expand Up @@ -126,6 +126,9 @@ Isaac Sim 5.0 Updates
* :attr:`~isaaclab.sim.spawners.PhysicsMaterialCfg.improve_patch_friction` is now removed. The simulation will always behave as if this attribute is set to true.
* Native Livestreaming support has been removed. ``LIVESTREAM=1`` can now be used for WebRTC streaming over public networks and
``LIVESTREAM=2`` for private and local networks with WebRTC streaming.
* Isaac Sim 5.0 introduced new actuator models for PhysX, including drive model and friction model improvements.
These improvements also introduced a small performance regression. We have observed up to ~20% slowdown in some
state-based environments.
* Some assets in Isaac Sim have been reworked and restructured. Notably, the following asset paths were updated:

* ``Robots/Ant/ant_instanceable.usd`` --> ``Robots/IsaacSim/Ant/ant_instanceable.usd``
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