Kit 108.1 Release Notes#
Release Date: September 2025
Kit SDK#
Added#
Foundation - Converted omni.kit.widget.context_menu to use Events 2.0 [
OMPE-39914
]Foundation - omni.kit.usd.layers and omni.kit.collaboration.presence_layer extensions converted to Events 2.0 [
OMPE-39913
]Foundation - Converted omni.kit.property.adapter.core to use Events 2.0 [
OMPE-39910
]Foundation - Converted omni.kit.manipulator.prim.core to use Events 2.0 [
OMPE-39909
]Foundation - omni.kit.hydra_texture was converted to Events 2.0 [
OMPE-39908
]Foundation - omni.graph / omni.graph.core: Converted to use Events 2.0 [
OMPE-39905
]RTX - On systems with multiple GPUs, scenes containing Warp nodes with Fabric Scene Delegate enabled can cause flickering artifacts. [
OMPE-58377
]This will be fixed in a future release.
This can be worked around in the current version by disabling Fabric Scene Delegate by starting Kit with
--/app/useFabricSceneDelegate=false
RTX - The attribute “Hide From Camera” in the Add>Rendering menu has been renamed to “Invisible To Primary Ray” to be consistent with the “Invisible to Seconday Rays” attribute. [
OMPE-12645
]Scene Optimizer - Capping fitting tolerance to 0.025, as this is a good upper limit with reasonable results. [
OMPE-57406
]USD Exchange - Global Materials are used if instancing is disabled [
OMPE-59166
]USD Exchange - Geometry Prims are transformed to the center of the Part bounding box to reduce the size of vertex position values. [
OMPE-58246
]USD Exchange - Display names are authored for all Prims that could not use the preferred name. [
OMPE-58205
]USD Exchange - Prims representing multiple Elements no longer have an Element ID in their name. [
OMPE-58104
]USD Exchange - Display names are now set on Material Prims [
OMPE-57857
]omni.resourcemonitor - Converted to use Events 2.0. [
OMPE-39915
]
Fixed#
Fabric Scene Delegate - PointInstancer does not update correctly if prototype transform is changed with FSD enabled. [
OMPE-54434
]Fabric Scene Delegate - Toggling payload variants not changing in Viewport with FSD enabled. [
OMPE-40148
]Fabric Scene Delegate - Role info is missing on primvars such as texture coordinates when FSD is enabled. [
OMPE-23953
]Kit App Streaming - Resizing the viewport in kit base editor triggers a new aov stream with new port number, breaking existing stream. [
OMPE-58931
]Viewport streaming only works if the ‘Fill’ option is disabled.
Kit SDK - Common Render Settings window logs: “Unable to cast Python instance of type <class ‘float’>” errors. [
OMPE-56104
]Kit SDK - Geometry widgets should not show physics properties in Extra Properties. [
OMPE-53881
]Kit SDK - Closing external windows will leave a black tile. [
OMPE-52542
]Kit SDK - Help menu doc links are incorrect. [
OMPE-52539
]Kit SDK - Viewport cameras cause Asset Validator to fail
KindChecker
. [OMPE-49352
]Kit SDK - Materials show as red when MDL is on a networked drive. [
OMPE-39987
]Kit USD - Deleting UsdShade prims leaves dangling connections. [
OMPE-54736
]Kit USD - Error when adding transforms on a payloaded XForm prim. [
OMPE-53362
]omni.kit.registry.nucleus - Registry sync over HTTP proxy server not working. [
OMPE-60828
]omni.kit.window.material - Stage materials not updated when reference/payload created. [
OMPE-53325
]omni.usd.audio - Failed to subscribe to stage events startup warning. [
OMPE-53340
]
Improved#
Kit SDK - Upgrade to Client Library 2.66.0. [
OMPE-53441
]
Rendering#
Added#
RTX - In some scenes using the viewport Camera Light mode together with many-light sampling may cause artifacts. [
OMPE-57827
]A workaround is to disable Many-Light Sampling in the settings, then re-enable it.
Fixed#
RTX - Could not get device current PCI-e link generation [
OMPE-59197
]Disables PCIe link generation and width check if vGPU is found. If PCIe link generation and width returns NVML_ERROR_NOT_SUPPORTED log is treated as info. and not error.
RTX - Infinite bounds can hide meshes and stall the viewport in large scenes. [
OMPE-56685
]RTX - Loading hsscclient in background threads can lead to instability. [
OMPE-54255
]RTX - Excessive DLSS ghosting when moving prims. [
OMPE-53847
]RTX - The changes made to the
omni:rtx:skip
flag inomni:rtx
are ignored by the renderer, causing issues with prim skipping. [OMPE-51251
]RTX - Some mesh operations can create incorrect results leading to crash. [
OMPE-51187
]RTX - First frame of a
DepthSensor
AOV can fail to be produced when using RT with DLSS/DLAA. [OMPE-47370
]RTX Rendering Algorithms - Maksim - Camera gizmos affect lighting. [
OMPE-52086
]RTX Systems: GPU Foundation & Testing - Tiled .tiff or .tx files load improperly and show up as black. [
OMPE-44009
]RTX Systems: Geometry & SDG - Occasional crash when reloading the same stage multiple times. [
OMPE-62799
]RTX Systems: Geometry & SDG - Memory leak when switching references. [
OMPE-40298
]