Release Notes¶

Note

As of late 2020, Kit has now become a more low-level SDK for building Omnivese Applications. Create has taken on many of user-facing application aspect of Kit

102.0¶

omni.usd¶

OM-34524 Fix undefined behavior from std::set_difference operating on possibly unsorted vectors.
improvements to tetmesh adapter
[OM-25753] Payloads
[omni.usd] Explicitly create session layer, as usdview does.
OM-33762: Don’t allow to move prim under instance or instance proxy
OM-32784: Change precision of metersPerUnit to double
OM-27871, OM-33196, OM-18707: Improve grouping command performance
Added another way to detect troubles with RTX HydraEngine
OM-33286: fix audio so that it properly matches camera orientation
OM-32957: Fix issue that renaming prim will not refresh layer window
fix-PrimCaching-new-stage-listener
OM-32892: Save opened stage to recent after save-as
Layer Widgets: Auto authoring mode improvement to release/102
fix material load crash’
Fix Selection::isPrimPathSelected API
OM-31478: Audio: silenced some error messages from audio streamers with bad filenames.
Fix mangled MDL texture path on USD inputs
OM-31068: fixing “Save As” freeze
OM-29163: Add support to stitch prims to specific layer
Update material related property widgets, context menu, commands to support Collection-based Material Assignment
OM-30599: Audio: split the ‘Sound’ prims into two separate menu entries.
OM-30604: Audio: added a python API to control output capture streamers.
OM-30588 UsdMaterialWatcher: callback return after destructor fix
OM-30345: setting default value of instanceableOnCreatingReference to false
Fix material watcher crash caused by batch population
fix potential null pointer dereference
Fix mdl inputs not populated if addToPendingCreatingMdlPaths is called before material is created
OM-30186: Fixing crash when wrong default up axis value is in settings
OM-27871: Improve selection perf of large stage
physics package update, min frame rate changed to int value
OM-29335 Fixed invalid value in queryNextPickedWorldPosition. Allowed nested query within callback and added async version of python API
Add omni.usd.get_context().get_picked_world_pos()
clean up physics settings, added simulation min frame rate setting
OM-29031: Fix path resolve during stage save-as
OM-28942: fix sound prim crash
Clear pending picking on stage closing
Fix another deadlock in selection
Pass MDL param description to USD inputs documentation
fix_hydra_selection_crash
OM-18729 Moved omni.kit.utils.get_stage_next_free_path to omni.usd.get_stage_next_free_path. Added path validity check and tests.
OM-28541: Mark root layer dirty for set_pending_edit to give change to save render settings
OM-24250 Add option to populate MDL inputs on USD right after load.
OM-27912 Fixing MDL annotation missing on referenced asset if material USD input is already defined in asset.
Make Transform Manipulator and TransformPrimCommand work on Scale/Rotate/Translate individually instead of matrix
SetInstanceable as preference + workaround for instanceable ref picking bug.
OM-27061: re-enable ITD
[omni.usd] Avoid setting invalid edit target (USD coding error spewage)
OM-27257: Remove unused variables
OM-27205 Fix new Viewport Camera list
[OM-27150]Fix issue of setting transform of UsdUtils.
usdAbc support on debug builds, and on linux
[OM-26803]Add sequence USD schema
OM-27091: Use relative path to save muteness and authoring layer data
Fix USD callback
Add fail check for USD APIs. Revert delayed new stage.
OM-23808: several fixes to spatial audio calculations
Usd Utils setLocalTransformMatrix() optimization
Improve AssetsLoaded event, repurpose UsdContext.get_stage_loading_status to report assets loading info.
omni::kit::StageUpdateNodeDesc: order member does not seem to be taken into…
removing physics schema dependencies
Remove deprecated OmniClientLibrary wrapper
Temporarily disable RTX postprocessing when rendering asynchronously
Fix crash when removing sublayer in debug builds
Fix CreateReferenceCommand when passing in relative path
Fix crash upon initialization if OmniGraph plugin isn’t loaded
fix a layer info query crash issue when the attribute doesn’t have any authored value
OM-25520 Add UI support for tetrahedralMeshGap
OM-25688: workaround for audio corruption due to ITD
Merge branch ‘OM-24583_fix_local_reference_on_linux’ into ‘release/100.1’
Add Tet Mesh Adapter
Read default rotation order from setting and set to XYZ
OM-24949: Immediately free resources after unload stage
OM-24453: Save render settings before stage save so avoiding lost changed settings
Fix usdPreviewSurface support in the hydra storm viewport, pull change from release which copies needed shaders.
Add support to attach an opened stage
OM-25074 Adjust reference asset to stage up axis
OM-24663: Possible crash fix for ViewportWindow
OM-18945: Release GIL while creating a new stage to prevent hang

omni.kit.window.file¶

added UI payload support
OM-32713 Save and persist directory of last opened file across sessions.
[OM-33598] Exit dialog is modal
OM-33258: Don’t save read-only layers
OM-23998: Set default folder after opening recent and open from file menu
Fix save task conflict if there are any dirty layers before closing stage
Don’t set dirty flag for empty startup stage
OM-24453, OM-23526: Improve save-as when it saves on the same stage file

omni.kit.window.movie¶

OM-34465: Add confirmation prompt for User to confirm sending a render to Omniverse Farm
Movie Maker. Make farm job type configurable
Fix OM-30570 add path trace samples per pixel settingg for iray mode captures
Resolve OM-29787 “Movie capture skip existing frames”
Warn on capture every Nth frame is checked if outpout file format is .mp4
Make movie capture window be aware of active renderer changed to iray
Add movie capture extension level settings so that users can start its window with custom initial values
Fix OM-26070
update movie maker’s change log and version
try an implementation of showing the custom aspect ratio on movie capture
fix the jumping number issue when mouse moves in and out input fields on the movie capture

omni.kit.widget.stage¶

handle prim name with space into release/102.0
OM-33854: Revert “Stage window - Doesn’t show prims that hidden flag is true.”
Show Missing Reference
Relationship Picker does not filter/highlight stage elements properly
adding stage window F2 to rename prim
[Stage] Context menu “Copy Prim” and “Paste Prim”
Improve stage window
[Stage] Additional checks the stage and prim are still valid
[Stage2] Quick Fix for OmniGraph
[stage] Exclusion types
Removing dependency that causes ImGUI assertion in Legacy mode
OM-26696: fix Stage Window Selecting World After Rename
Add stage filters for public UsdPhysics schema prims and apis.
[stage] bug in type_column_delegate
[Stage] The ability to add more columns
viewport drag and drop undo/redo

omni.graph.core¶

disabling load with meta-data by default
OM-32798 Rearranged ABI functions to be compatible with the 101.0 layout
Resolved attrib crash fix
Fix for crash in DS.
Add startupComputeGraph method needed by DriveSim.
Speed up FC initialization time by taking advantage of cached downstream connections.
Fix for dependency ordering in execution evaluator
OM-27380 Refactored USD update to handle all types
disable -Wunused-function for graph attribute inline functions
OM-29490 Implemented a new interface for type extraction from strings
Make sure the evaluator gets notified when attributes and prims are connected and disconnected.
Add support for combining subgraphs with execution graph
OM-29095 Moved default scheduling node methods to NodeTypeDef
handles output bundle attributes and subgraph changes in node renaming
Fix race condition in RenderGraphScheduler map
Fix initial OG value flush again.
Removed an unused variable related to NodeTypeDef
Changed isInput to false for outputs in GraphContext::createNewNode
command to return an object
Bug fixes to support rehardening of union attributes on connection to…
Union types part5
Fix crash on trying to record movies with particle system.
Fix for initial USD to FC flush.
Patch to stop the crash when the OG extension is enabled while a file with python nodes is open.
Multiple global graphs
Fix more cases of incomplete NodeObj init
Make OmniGraph not overwrite prim in FlatCache if it was already added by something else
Fix up a few places where NodeObj::nodeContextHandle is not initialized. Still many others…
Batched updates to usd.
OM-24395: OG thread Safety workaround
bugfix for a corner case where the evaluator misses scheduling a newly connected node
Fixed a couple small things in OmniGraph
OM-24395: Add OmniGraph postprocessing of RTX renderer output
Handle deep relative paths for non-ogn_connections.
Fix crash on startup of create when enabling OG.
Fix for creating prim nodes where it exists already.
Connection type persistence
Initialize empty relationship in FlatCache to empty path
assertion criteria bugfix
Treat USD prim nodes with upstream connections as terminal
Node connect / disconnect callbacks

carb.flatcache¶

OM-33506 and OM-11420 (flatcache CUDA crash fix)
flatcache: Add get or create attribute
OM-31225: Add missing #include to fix omni physics build error
OM-30150: Only copy array attributes needed by OmniHydra
Support multiple flatcaches
Fix Flatcache prefetch and valid bit update for DriveSim
Fix unused variable errors that only show up on linux and in the drivesim repo.
Fix const usage in StageWithHistory get*Attribute* wrappers
Use const in StageInProgress read method, fixes build error in drivesim
Add read-only and write-only accessors to StageInProgress
Fix flatcache set intersection
Fix OM-25962 by supporting eTag in Type to TfType conversion
Flatcache change logging for PhysX and USD-style interface for flatcache
Add array attribute support to StageInProgress
Disable locking for size one ringbuffer
StageInProgress updates for drivesim
Fix flatcache debug spam
Merge flatcache stage with history from drivesim to master

omni.kit.property.layer¶

OM-34280: Remove kgsPerUnit from layer property
Fix layer property window to change layer offset
OM-32950: Set color hint for missing sublayer

omni.kit.window.filepicker¶

OM-34403: Remove grey area created in Open File dialog by Checkpoint widget
Content window persistant width of versioning panel
always show “create checkpoint” if server supported
stronger warning in filepicker delete dialog
Rezize checkpoints panel
OM-32729 Don’t try to connect to local windows path
Content Browser improvements
OM-25271-add-open-in-file-browser-context-menu
OM-29285: Improve options pane support for file picker
cleanly destroy filepicker dialog
OM-25646: : property window correct lower case local filenames
Filepicker regression fix: navigates to directory when creating dialog with current_directory value
Fixes Content browser bug - slowness in populating directories
Filepicker thumbnails mismatched to items in grid view

omni.kit.widget.filebrowser¶

Updated version for context menu fix
OM-34176,OM-34196][content] Fixed context menu
OM-33160: Fixed crash: never destroy the default icon
OM-21156: Added drag and drop of multiselection
OM-30768: Make Filename column push to the right and not be totally absorbed by other columns.
OM-32851 fix to filepicker crash when navigating through browser bar
content browser always show versioning window when enabled
added overwrite dialog to filepicker copy
Improve content-browser navigation speed.
Trying to restore ImageWithProvider in ContentBrowser
Fix several issues with content browser and thumbnails.
Content misc. bug fixes
Add a default style switch logic for the core extension
Fixes content browser crash when refreshing large number of file changes
Replace ImageWithProvider with Image
OM-29866 Fixes: Kit crashes during Live Sync due to auto refresh in Content Browser
Filepicker auto-refreshes folders
Fixed filebrowser bug: thumbnail generator not called
OM-28899: Supports range selection with shift key in grid view
avoid calling scandir on file path
fix unconditional usage of self._grid_view which is only set in tree view

omni.ui¶

OM-34434: [omni.ui] Fixed crash when docking with script
[OM-31807: Fixed float drag when double clicking
[OM-29853: [omniui] Fixed crash in WindowHandle::isSelectedInDock
[omni.ui] dock_tab_bar_visible and dock_tab_bar_enabled
Adding HTTPS support to images
[omni.ui] shade for float and url style parameters
[omni.ui] Don’t block hovering state when popup window is on the screen
[omni.ui]: Make sure the target window can be found when trying to restore a layout
Skip invisible children in ui.Grid
[omni.ui] Float size of font
[omni.ui] Some Item methods are not abstract
[omni.ui] Fixed position property of docked window
[omni.ui] OM-29344: Fixed tooltips
Add omniui_api to callbackBase
Adding exporting decoration to omni::ui::CallbackHelper
OM-28700: Clean up the tree view item node cache recursively
[umni.ui] Introducing shades
Fix for the drag crash
[omni.ui] Memory management in callbacks
Add ellipse shape to omni ui
Change combobox droplist scrollbar background to be transparent
[omni.ui] Default style object

omni.kit.usda¶

OM-34420: Added support for usd_omni_wrapper

omni.ext¶

[exts] Improve failure diagnostic, fix user config reset in precache tool
[exts] log more info on ext solver solution, fix precache tool upgrade mode
exts: add more logging and –upgrade for precache tool
exts: fix: do not generate version lock in case of failure
exts: fix runtime dependencies were not set (ext graph UI broken)
ext version lock: write more meta information into generated section
ext version lock: add optional overwrite flag support
add ext version lock generation in the same kit file
ext settings: ignore special directives from app merger (++ and @import@)
exit app when startup extensions fail to resolve
exts: only load .kit files as single file extensions
ext publish: embed kit version and date into package, show in UI
ext tests: select highest version by default, allow queries like omni.foo-2.3
exts: more errors and checks for ext_id and version parsing
ext manager: prefer local extensions over remote (add a setting)
Do not write to extension.toml when publishing
exts: fs watcher paths setting to control amount of folder subscriptions for heavy extensions
fix kit global paths and versions
exts: excluded extensions, fix failure diagnostic message, UI minor fix
exts: ignore empty dicts of [[native.library]], [[native.plugin]], [[python.module]]
extension config generic filters support

omni.kit.widget.layers¶

OM-31441_remove_invalid_material_prims
OM-34143: Refresh invalid cache status for sublayers after on-the-fly save-as
OM-25941: Fix sublayer refresh from offine to live
Disable missing layer check by default for layer window
Fix save-as crash caused by invalid layer indentifier to 102.0
OM-32272, OM-31074: Add auto-authoring mode support to release/102
OM-31450: Allow to create/insert sublayer after right click empty space in layer window
OM-30842, OM-30843: Move layer reload to omni.usd as public APIs
OM-30512: New layer lock support
OM-30317: Fix drag and drop checkpoint layers
Fix flatten layers issue
Fix live mode UI refresh
OM-27871: Optimize ‘select invert’ and multiple prim specs delete
OM-29412, OM-28139: Fix flickering of save icon in live mode
OM-30120: Fix layer move
OM-29975: Fix issue that it disables contents display in layer window
OM-29857: Support to find layer in content browser
OM-29869, OM-28986: Improve font color of missing layer & fix possible exception
OM-28986: More improvement to layer style
OM-29254: Improve reload for omnvierse layer to sync latest server version
Layer window refactoring and tests improvement
OM-29540: Improve search perf of layer window
OM-29534: Improve layer referesh
OM-29401 Save All Layers button to create checkpoint when applicable
OM-29415: Fix issue of replacing edit target layer
OM-28986: New look for layer view
Quick fix of startup issue caused by MR 9445
OM-29278: Fix perf issue of array query from layer window
Enable the auto-scaling by disabling the PCP_DISABLE_TIME_SCALING_BY_LAYER_TCPS flag
OM-28623: Copy layer meta during layer transfer after creating the first sublayer
Revert payload name of item to fix extensions that extend context menu of layer window
OM-25676: Fix memory leak of layer window
OM-28266: Support to remove multiple prim specs
Revert “Merge branch ‘fix_texture_leak’ into ‘master’”
OM-25676: Fix memory leaks of ui.image and layers window
OM-27619: Fix drag and drop to layer window in list view of content window
OM-27872: Fix layer flatten
OM-21899 Add “Replaced with” checkpoint message when save over existing file
OM-25921: Add context menu support to insert usd as sublayer from coontent window
OM-25211: Add options to fetch latest if there are layer conflict
fix_layer_permission_issue
fix_valid_layer_open

omni.kit.material.library¶

improved-material-prim-list-monitor
create material menu doesn’t use full path for .mdl file
OM-13522: Content window bind material
Add setting to use original svg color for icons in create menu

omni.kit.tool.collect¶

OM-33212: WA to fix folder creation on network drive, fix commonpath issue
OM-31960: Fix possible naming conflict of collect tool for flat collection
OM-33250, OM-33212, OM-33113: Fix collect tool: allow to collect cross domain files, folder pick fix
OM-30001: Use copy with override from omni.client for collect tool
OM-29859: Improve collect tool to support collecting checkpoints

omni.kit.core.tests¶

OM-34203: Fix possible hang of usdcontext after post quit
fix random omni.kit.console keyboard input causing test error
make portable config more flexible, allow apps make their own
run loop test and fix

omni.kit.window.preferences¶

OM-34271: Add ability to “deep link” into Preferences pages
move omnihydra skeladapter options ot preference page
Merge branch ‘OM-33173’ into ‘master’
OM-31529: Audio: fixed an error message from the “apply” button for audio device selection.
added feedback when /app/hydra/material/renderContext setting changed
preferences window adjust catagory width
OM-29397: new preferences UI
Fix crash when opening Preferences Window
add_stage_reload_hint_for_changing_mat_network

omni.flowusd¶

Flow Point Cloud Bugfix
Flow. Improve robustness of auto cell size.
Flow package update. Fix Smearing, improve performance.
Flow Sphere Bugfix
FlowUsd. Orthonormalize localToWorld before extracting rotation.
FlowUsd. Make property widget optional.
FlowUsd. Fix force simulate timestepping behavior.
FlowUsd. Workaround to force absoluteSimTime uniqueness.

omni.kit.window.viewport¶

OM-32652 Add more camera settings, show navigation speed on keyboard input, add inertia to WASD navigation
[OM-30764] Renaming camera should reassign the viewport camera
OM-34144 Make sure to clear drop target when dropped prim isn’t a UsdGeomXformable.
OM-31324 Check against Imgui::isMouseReleased to unstick the viewport, which…
Fix build issue caused by rebase
OM-31910: Fix null prim access after layer mute
OM-33588 Make orthographic cameras save out their position, not their target for 102.0
OM-27585: Clear stub camera in session layer after remove/rename
Brute force mouse-up on all non button events. (OM-31627, OM-31324)
Fixing crash on improper timeline input formatting
fix bad xform gizmo state that disables picking
fix_viewport_pick_ray_and_context_menu_when_resolution_doesnt_meet
orthographic fixes from 10909 and 10934
OM-30580: Clipping transform gizmo if it’s out of camera’s frustum
Add hook up to drag/drop for animation to be assigned to skeleton using setting
OM-29384 Add setting to control viewport drawable blocking behavior
The ability to use multiple contexts in multiple viewports
on camera duplication don’t include child prims
[Viewport] Draw cross when dragging a layer to viewport
Add is_content_region_hovered to viewport window (needed by OM-29557)
fix for mousewheel not working in viewport camera
Add IViewport texture resolution override
Clear UsdGeomBBoxCache in response to prim resyncs (e.g., changing variants)
OM-23854 Expose ViewportWindow picking getter/setter in python
OM-26361 Make duplicate viewport camera a python command
OM-27478 Support camera control on multiple viewports.
OM-27919 Change failed SceneRenderer error to warning
OM-25896 Sync ortho camera width between FreeCamera and USD
Make built-in camera’s xformOps and rotation types follow Preferences

omni.kit.window.content¶

OM-34145: Fix drag and drop from system to content browser
filepicker persistant width doesn’t effect dialogs
OM-32804 Resizing the window breaks checkpoint splitter bar
content browser show an dialog error message if copy fails
OM-29289 Handle and print exception in _copy_items callback
Add OpenVDB and NanoVDB icons to the content browser

omni.kit.thumbnails.usd¶

Align usd thumbnail generation setting and enable by default.

omni.kit.compatibility¶

Fixing driver range detection logic in compatibility checker
Add a button to open log file in compatibility checker notifications
Refactoring compat checker code for easier testing, adding couple of tests
OM-32133: Improved compatibility checker
Warn about RTX init failure in viewport

omni.kit.app¶

IApp: by default assume internal build
OM-32662: Fix python profiler and profile of few early loaded plugins
OM-19843: print location of user config
app version taken from kit file version by default
IApp shutdown sequence events
change user.config to load earlier, in regular config merge pipeline
OM-29991: fixing log file cannot be written if folder doesn’t exist
Allowing ++ syntax to create arrays when array is not present
Update carbonite to fix CARB_ASSERT, applyRange, etc.
portable paths args, test artifacts, python flags
python libraries stubgen

omni.graph.ui¶

compute node widget
Omnigraph NE: add auto icons
Add node debugdrawline to omni.graph.ui
Fix: Omnigraph UI node deletion
OM-31248 OM-31247 Fixed ghosted text and node interface wrapper access
[OmniGraph] Fixed fail related to the new graph multiselection
Add left panel in Omnigraph UI
Enable connectPrim in OG’s NE.
Omnigraph NE: feature: use the metadata uiName to show the nodes in FastSearch and as a node name during the creation
Omnigraph NE: remove Warning: in SdfPath
Omnigraph NE: fix spamming message + loop flow direction
Omnigraph NE: fixes and features
Omnigraph NE: disable ConnectPrimCommand and DisconnectPrimCommand
Omnigraph: fix ConnectPrimCommand
Feature: Omnigraph auto disconnect input
Auto pan when the mouse is near the border
Use a custom data key to reverse attribute relationship flow
Fix regressions in Node Description Editor
Omnigraph fix: dont move subgraph node when an external node is moved and over the
Fix/omnigraph change
Omnigraph features and fixes
Fix/canvas features
Feature/vprim node editor
Omnigraph Editor fixes
Workaround for get_subgraphs() that return “/” for the current graph
Subgraph as backdrop

omni.rtx.window.settings¶

Render Settings Fixes: OM-32220, OM-32080, OM-25837, OM-28631
OM-20155L Fixed image leak in omni.rtx.window.settings
Render Settings: Propagate changes to Vector/Color settings immediately
OM-25608: Render Settings: Add “Burger” Menu for Load/Save/Reset
OM-24795: Fix Render Settings Crash
OM-24808/OM-24103: RenderSettings: File/Asset Picker Widget and Load/Save Settings in USD form

omni.graph¶

Added IBundle::removeAttribute (port of MR 10908 to release/102.0)
Fixes for extended attribs
Support for singleton node types
OM-31626 Added documentation and support for the singleton keyword
OM-31349 Fixed return value for tuple array data
Update schema and docs, tutorial for extended-attrib tests
Please welcome: omni.graph.action
Remove unneeded geo nodes and associated UI
Add support for explicit typed test cases
Add optimizations for Realm-based scheduling in OmniGraph
Patch to always create prim nodes at the root graph level
Convert time based deformer to use ogn
Fix for re-connecting extended attributes
Action graph - add more generic nodes for OM-31028
Generalize downstream connections metadata to handle fanout.
Fix extended type resolution for OM-30404
OM-29233 Refactored metadata to fix node type description
For OM-30325: Add GetLookAtRotation
Fixes and cleanup to execution graph for OM-30325
Bidirectional connections
OM-30579 Made the per-node data key more unique
OM-27380 Added node tags and namespace type name overrides
For OM-29793: First pass Get/Set attribute support for action graph
Refactor graph Attribute to use Type
ogn path support for kit-sdk package
Gather scatter
OM-29477 Restored old workaround for updating USD
Fix attribute compatibility check when destination is ‘any’
Added IAttribute::areAttrsCompatible to fix graph editor compatibility check
OM-29095 Change how prims are emptied to avoid an attribute bucket leak
Omnigraph: fix connect and disconnect prim from bundle attributes
OM-26367 Reorganized scripts to accommodate attribute data access etc
OM-25328 Added node support for the core
Create node inside a graph if a graph is selected
Add some nodes and test scenes for perf measurements.
Do not allow nodes with unknown types to be created. This is causing a crash in Drivesim.
Changed attribute type name “prim” to “bundle”
OM-27380 Renamed example nodes to match naming conventions
Multiple global graphs part2
OM-25328 Split the omni.graph.core extension into two
Fix for not able to acces OmnigraphHelper at initialization time.
enable the realm scheduler through the UI.
OM-27757 Refactored to get attribute handle from the attribute at compute time
wrap bundle functions for python
Interface to allow inputs/outputs/state to be added as union types. Bug and test fixes.
Union types
Use RenderVars to disambiguate between targets for OmniGraph postprocessing
Bump all OG related extensions to version 1.0.0
OM-23823 Got tuple bundled data extraction working
Dynamic scheduling default behavior
Clean up code for OmniGraph-RTX Postprocessing
Subgraph creation and rename functions
Execution connections
Different connection types plus bug fixes.
Add preview image to omni.graph.core and omni.graph.ui extensions. Improve description text.
OM-24202 Add handling of unspecified defaults to .ogn files
Add option for setting the default evaluator.

omni.example.ui¶

[OM-19848][UI Doc] Cosmetic fixes
[omni.ui][OM-29493] Fixed SCROLLBAR_ALWAYS_OFF
Set of tests

omni.kit.window.usd¶

OM-33948: Wait more frames for usd paths to populate materials
OM-27201: usd_paths fix for too many items in list

omni.kit.window.property¶

OM-33261: Fixed issue with property window not showing layer metadata sometimes
OM-30902 OM-30926 Allow property window “notify” to be paused/resumed
Fix the background color for slider for NvidiaLight

omni.kit.capture¶

OM-34024: Add progress notification about frame captures
Added the handling of path tracing iterations for capturing in Iray mode
Fix serialisation/deserialisation issues for CaptureOptions.
fix a regression the prevent capture every Nth frame from working
Add new movie type sunstudy into movie capture
Fix movie capture UI scroll issue and change mp4 images’ name pattern
Make movie capture support preroll frames
Make movie capture tool’s progress report more user friendly
Fix the movie capture time precision is a bit much issue
Let movie capture don’t use settings for PT in RT mode
Fix the movie capture doesn’t fix simulation step time issue
OM-24248 Make sure to setup XR compositing parameters when capturing movie alpha channel

omni.kit.registry.nucleus¶

exts global system cache
ext registry: fix index refresh API call
Make it possible to wait for indexes to be synced in the Kit service registries.

omni.kit¶

OM-30911: Add notification if default prim is missing in reference file
Add Audio category under viewport “Show By Type” menu
Adding missing IAppWindow Python bindings
Use const reference instead of reference for input parameter of UsdPrim in EditorUsd.
OM-25798: Stage window don’t select material after dragdrop
Add TetMeshAdapter’s .json file on Linux

omni.kit.livestream.core¶

livestream changes

omni.kit.commands¶

OM-33350: remove undo redo stack limit
OM-24923: Fix exception caused by popping empty array

omni.kit.window.profiler¶

move omni.kit.window.profiler to kit-devtools
[omni.kit.window.profiler] Work around omni.kit.ui.Popup crashes

omni.example.hydra¶

Compatibility mode fixes

omni.kit.test¶

test system: match versions as strings, nil suite, more flexible app tests
extension test: treat kit file as an app
extension testing: allow select apps for tests and downloading them
physics package update, enabling physics tests again
exts: helper for finding ext_id and module + more test goodness
omni.kit.test: provide API to register custom test status callbacks
fix omni.kit.example.toolbar_button leak
material_swap leak fix
read and write auth for ext registry

omni.renderer¶

Removing redundant copy in renderer-rtx extension

omni.debugdraw¶

add point drawing functions to IDebugDraw
Rearrange order of operations in UsdFileOp

omni.kit.window.render¶

Removing omni.kit.window.render_farm, merge with movie_maker extension
Renderfarm UI improvements.

omni.kit.window.extensions¶

ext template: fix vscode folder not being packaged
OM-32600: omni.kit.window.extensions: extension template create button
make ext manager UI registry test more stable
extensions ui: sort by date, deps list toggle
Move extension autoload to be part of core startup, allowing to autoload lower lever extensions
exts: user extension folders + properties UI
exts UI: export/import of an extension
ext ui registries control, ext registries can now persist, properties ui improvements
[extension manager] fix reference to changelog, remove leading space from markdown headlines
extensions UI: “show feature only”, “show toggleable only”, package.app
ext manager UI tweaks

omni.kit.window.material¶

[material_preview] Removed Material Preview
[material preview] Better usda for the preview swatch
Material Preview is running at the same process
Material preview remote render
[Material Editor] Removed material editor
added constructors, added remap, fixed json files to match.
Material compounds import/export
[Material Editor] Fixing creation of new nodes
[MatEditor] Redesigned left panel and added search

omni.kit.context¶

any multi-item material appear in create submenu
added add menu to viewport context menu

omni.kit.telemetry¶

OM-28946: hook up telemetry in 102

omni.kit.property.usd¶

OM-30913: Support to find reference or payload in browser if prim has authored references or payloads
OM-30427: Add missing color for missing reference in property window
property references only show checkpoint when supported
OM-27389: Fixed the format of FloatDrag
OM-25481: context menu add menu
property window added text clear button
Fix options pane builder for adding reference
property window handle large selections
property widget disable connection editing
OM-18950 OM-23483 Support hard range (in model) vs soft range (in widget) for USD property widget
OM-29905 Fixed Search in Add Target(s) window of relationship widget.
OM-28913 Add support for SdfTimeCode type in USD Property Widget
OM-6064 Support nested display group in USD property widget + MDL nested group annotation
OM-27272: * Enable multi-tasks collecting, * Improve usd-only collect
Fix Non-default icon not resetting when drag value to default.
Fix references widget not showing broken ref
OM-27329 Update SdfAssetPath to USD in Propery Widget only when EditEnd.
Use PrimCompositionQuery to find references and introducing layers
Show schema default value on USD Property Widget if the Attribute value is undefined in USD file.
generate_property_window_documentations
special_default_value_for_xformOp_scale
OM-23363: Improve the property window light style
OM-24865: Fix add reference old stage issue
Merge branch ‘property-window-reset-fixes’ into ‘master’
Property window raw empty fix
support_schema_default_value
one_click_reset_in_property_window
property-window-add-reference-refreshes

omni.appwindow¶

Add UI renderer device driver info to crash metadata, fix…
Fixing crash in the app icon setting path
add setting to set app icon on windows to omni.appwindow
API to set DPI override [breaks carb::imgui::ImGui->1.0 and omni::kit::IAppWindowFactory->2.0]

omni.kit.renderer.core¶

OM-28437: support for /app/renderer/skipWhileMinimized in Next
OM-29345: double the default ImGui vertex stream buffer size
Moved comparison function into a separate extension, fixed ImGuiRenderer default window attachment
Fix graphics leaks + some minor fixes
OM-28438: Adding acquire semaphore logic
Fixing debug names for IRenderer textures, changing the graphics objects leak error->warning

omni.kit.splash¶

Remove the asyncio loop from the splash screen

omni.kit.window.script¶

OM-32145: script editor window: add more font sizes using font scale

omni.hydra¶

Omnihydra blendshape
omnihydra bypass render skelmesh process - kit
Add a switch to explicitly bypass RTX skinning shader
[omni.hydra.ui, omni.hydra.examples] Conform with omni.ui API
[omni.hydra.scene_delegate] Properly set up gprim prototypes, and restore ability to ignore USD writes

omni.hydra.scene¶

[omni.hydra.scene_delegate] Do not create duplicate cache entries, and properly deregister ptinst entries.
[omni.hydra.scene_delegate] Support ancestral xforms for ptinst prototypes
[omni.hydra.scene_delegate] Ensure proper refresh when purpose is authored.
[omni.hydra.scene_delegate] Propagate dirty instancer bits first to ensure proper prototype dirtiness
OM-28034 integrate omni hydra skel adapter to kit master
[omni.hydra.scene_delegate] Do not populate ptinst protoypes with their scene paths as cache paths.
[omni.hydra.scene_delegate] Correct IDs when point instancer prototypes have multiple gprim descendents
[omni.hydra.scene_delegate] Correct precision for SetInstanceTransform after omniverse/kit@7ed8a01d
[omni.hydra.scene_delegate] Don’t update the delegate cache 5x per iteration.
Make flatcache notice handling and fastcacheAPI use of flatcache more robust during reparenting
[rtx.hydra, omni.hydra.scene_delegate] Several fixes for scenegraph and point instancing.
[omni.hydra.scene_delegate] Skip expired xformOps.
[omni.hydra.scene_delegate] Stabilize handling of scenegraph instances within PointInstancers.
[omni.hydra.scene_delegate] Restore point instancer updates.
[omni.hydra.scene_delegate] Disable instancing by default (fall back to UsdImaging instancing support)
[omni.hydra.scene_delegate] Properly handle xformOps with 1 timesample.
[omni.hydra.scene_delegate] Ignore xformOps that have no authored values.
[omni.hydra.scene_delegate] Support non-constant primvar interpolation
[omni.hydra.scene_delegate] Restore validity check for invalid prim IDs (lost in !8193)
Changes to integrate StageWithHistory/Flatcache with Hydra.
[omni.hydra.scene_delegate] Skip invalid cached prims upon resync.
[omni.hydra.scene_delegate] Provide virtual dtors for adapters.
[omni.hydra.scene_delegate] Guard against invalid delegate cache in fastcache API.
[omni.hydra.scene_delegate] Ignore non-xform bits for lights in PostSync

omni.kit.notification¶

Minor adjustment of notification layout to avoid too much space to the right border
Disable notification for session layer to mis-report builtin overriden
OM-27755, OM-27681: Initialize notification manager extension

omni.usd.schema.anim¶

USD: Enable AnimationSchemaTool and upgrade version

omni.kit.xr¶

remove deepwall for now

omni.kit.versioning¶

combined versioning “Save with Comment” with “Save”
OM-29949 fix stage with only rootlayer cannot save checkpoint
Restore client library version that supports reading checkpoint
OM-29064 Make Save and Save with Comment unified UI

omni.graph.tools¶

OM-29864 Make the icon path work inside and outside of Kit
OM-30596 Added support for attribute and memory type template parameters
Set context on state attributes in OGN Database class
OM-27380 Rename unwritable file tag
Avoid regenerating identical ogn files
Write ogn attribute description to metadata
OM-23823 Added bundle data tutorial and support for tests it will use
OM-23822 Fixed naming for input bundle attributes

omni.kit.widget.graph¶

[GraphView] Fixed display_color, added icon and preview to the model
[GraphView] White border for rectangle selection
[MDL Editor] Multiple Selection
fix material editor exception when opening material
fix input_is_target_connection flag in GraphView when virtual_ports is disabled
fix spelling in various places
reduce dependency of omni.kit.widget.graph from usd to usd.libs
[graph] call destroy() for all delegates from the router
[omni.ui] Fixed broken scroll zoom in CanvasFrame
[Material Editor] Grouping of ports
[Material Editor] Reverted “Grouping of ports”
[Material Editor] Grouping of ports

omni.videoencoding¶

Fix OM-25735 (Video Encoding Wrong Year)
[OM-27159] Take into account buffer argument in bindings

omni.services.transport.client.idl¶

Allow underscores in IDL urls
Fix services client for IDL transports

omni.gpu¶

GPU Foundation extension / factory

omni.kit.stage¶

new stage template sunflowers
OM-25421 Fix prim not following xformOp preferences. Reduce duplicate code among CreatePrimWithDefaultXformCommand, CreatePrimCommand and CreateDefaultXformOnPrimCommand.

omni.renderer.utils¶

Fixing HTTP access in ImageWithProvider scheme

omni.ui.ImageProvider¶

Fixed for Http supprot in ui.Image and ui.ImageWithProvider / Update Client Libs

omni.kit.property.light¶

property window don’t build RawUsdProperties when frame is closed
OM-22443: visibleInPrimaryRay default value changed to True

omni.services.thumbnails.images¶

Handle omni.client’s singleton behaviour in multiprocessed environments.

omni.kit.window.stage¶

[Stage] Fixed Stage window when creating second USD Context

omni.services.transport.client.https¶

Simplify https transport

omni.kit.tagging¶

OM-30770: Fixed crash in column delegate of content
Catch TransportError in case connection is lost

omni.kit.window.cache¶

Move Progress Monitor to kit-windows repo
Download, Cache Monitor

omni.hydra.pxr¶

fix hydra viewport crashes, lighting, and picking

omni.kit.quicklayout¶

Added dependency to quicklayout

omni.kit.window.stream¶

OM-30461: Reorder application button indices to reflect ImGui button indices.

omni.services.mdl¶

Clean up splash screen, remove mdl_preview service

omni.services.core¶

Kit services, data encoding/decoding functionality

omni.services.client¶

Kit Services: Make connections persistable to enable connection pooling for aiohttp

omni.usd.config¶

Re-cleanup kit core
Clean up Kit Core

omni.kit.viewport¶

Fix dpi issue of viewport widgets extension
OM-27638: Adding naming widget under camera for multi-user collaboration

omni.example.greet¶

OM-27968: cleaned up the ISerializer acquire calls in Kit to specify the plugin that is expected.

omni.timeline¶

Move default app.player.play* settings from toolbar to timeline extension.

omni.graph.core.ogn¶

Fixed compile error in BundleContents::insertBundle
OM-29095 Filled in missing pieces to call scheduling nodes
Resolve OM-27627 “Kpicott//refactor for consistency”

omni.kit.property.material¶

material widget fix common attributes with multi select
material property widget support NodeGraph shaders
OM-28458: material property widget search with icon
material property widget show outputs last
OM-27873: material property widget handle relationship in attribute list
fix material search issue with long lists

omni.kit.stage.copypaste¶

Initial work for Ctrl-C and Ctrl-V

omni.graph.examples.cpp¶

Fix mismatch in realm option

omni.iray.render¶

IRay - remove old settings extension, change name to Iray where possible

omni.kit.property.transform¶

fix om-29869: Errors when erasing Instanced assets
transform widget changes
TransformOp context menu for the Add button in the property window

omni.graph.nodes¶

Fix more OmniGraph related Linux compiler warnings
fix displacement operators
Fix for omitted edit by gitignore.
Fixes for omni.graph.nodes
Fix for omni.graph.nodes extension to not crash Create

omni.ansel¶

Make ansel working without omni.kit.editor

omni.kit.tool.asset¶

Separate extensions omni.kit.asset_converter and omni.kit.tool.asset_importer
Remove old editor and content window dependencies for layers, asset importer, and collector extensions
Update asset importer to fix dir creation issue
OM-17641: Update asset importer to support light import

omni.kit.renderer.capture¶

Support multiple OS windows in omni.kit.renderer.capture
Proper memory ownership for captures, cleaned up code

omni.kit.autocapture¶

Autocapture improvements
OM-26667: Autocapture can record GPU performance JSON
OM-26667: Autocapture helper

omni.kit.property.geometry¶

OM-27614 Added [0, 5] soft range for refinementLevel
OM-25471: property window show doNotCastShadows inverted

omni.kit.primitive.mesh¶

Fix cube generation if object origin is not [0, 0, 0]
create menu mesh exception fix

omni.usd.libs¶

[omni.usd.libs] Add Alembic binaries.

omni.command.usd¶

OM-26128: Added prim parent/unparent to edit menu
Stage payload bug fix + TogglePayLoadLoadSelectedPrimsCommand

omni.usd.schema.sequence¶

Update sequence USD schema

omni.usd.schema.physics¶

removed physx dlls from physics schema

omni.kit.livestream.webrtc¶

Fix WebRTC default signaling transport protocol.
Livestream extensions fixup

omni.kit.window.splash¶

Splash screen improvements [breaking omni::splash::ISplashScreen->1.0]
default splash screen, ext UI tweaks

omni.kit.window.transform¶

remove legacy extensions

omni.kit.debug.python¶

python debugger extension

omni.kit.async¶

allow_setting_eventloop_type

omni.kit.livestream.native¶

Set livestream enabled when enabling native streaming, Disable throttling when streaming

omni.services.transport.server.tcp¶

Fix the tcp socket transport.

omni.kit.window.console¶

Fix “open” command when run with autoexec.lst
OM-25044: Fix for crash when log string is too long
OM-25044: Fix memory corruption crash

omni.graph.expression¶

dependency cleanup and bugfix
expression node - remove importing deprecated or unused modules
remove pipapi installation of asteval and torch from OgnExpression

omni.kit.asset¶

From DriveSim: Update asset converter to support converting specified up-zxis
OM-27182: Update asset converter to fix export crash
OM-26197: Add animation export support for asset converter
OM-23153: Reorg omni.kit.tool.asset_importer to service and UI extension

omni.services.registry¶

Registry service with S3 and Nucleus backends

omni.kit.window.status¶

Status bar complies to hideUI setting

omni.services.transport.client.http¶

Agent improvements

omni.kit.skelvis¶

[OM-25515]Move skelvis extension to animation repo
[OM-25202]Fix performance issue of skelvis extension.
[OM-25176]Codes refactoring for skeleton visualization.
[OM-23537]Pick skeleton joint regardless of current picking mode
[OM-24678]Fix a bug that skeleton visualization sometimes doesn’t refresh

omni.kit.numpy.common¶

Add kit Numpy Commons extension to introduce numpy dtypes binding

omni.hydra.examples¶

OmniHydra - Scene graph instancing support (OM-24915)

omni.kit.utility.prim¶

Updated old preferences window to use new omni.kit.menu.utils

omni.ui.bind¶

omni.ui documentation format

omni.kit.mainwindow¶

Reduce the time Kit-Next hangs with undocked UI on startup

omni.isaac¶

Remove isaac shapenet extension from kit sdk

omni.kit.ui¶

OM-25034 Fix MDL drag and drop undo group

omni.kit.editor¶

OM-24612: Create now loads carb.glinterop.plugin

omni.kit.usd¶

[OM-24254]Add UsdEditTargetUndo.

other¶

Add drc extension support for Draco plug-in
OM-32094: add feature flag to many user facing extensions
Adding support for thumbnail generation in all of the various filepicker widgets
OM-17238: Custom material dialog
update carbonite…ITokens breaking change
OM-12546 Command name suffix removal
OM-29949 Fix Save with Comment menu state
OM-29961 remove checkpoint from Save As
OM-29953 restore checkpoint context menu on all column
OM-27536 OM-27643 OM-27642 OM-29174 Reference Checkpoint
add stage widget context menu to open in material_graph
Rename omni.assets -> omni.assets.plugins
Support for loading USD schemas as extensions
[omni.ui][OM-27463] Option for smooth zoom for CanvasFrame
Create/List/Restore Checkpoint
Add usdAbc support
Remove Omniverse from extensions title
switch to python 3.7
Workaround latency issues in multi-os-window

100.1.1 Hotfix¶

UI - Fix for menu ticks
CloudXR - Linux support
Physics - fixed rigidbody CCD
omni.ui - Fixed context menu (when 4 or more requested)
Graph - add same side connections
Fix Content Browser thumbnails for searched items
Update Linux nv_usd with parallel xform processing disabled in UsdImaging
zero gravity fixes - undo/redo raycast drag, Physics zero gravity -> zero…

Kit 100.1¶

Kit has now become a more low-level SDK for building Omnivese Applications. Create has taken on the user-facing application aspect of Kit

Asset Import/export¶

Update asset converter to fix export crash
Update asset importer to remove redundant material export
Fix obj crash when there is no material

UI¶

Added step_size to FloatSlider
Fixed ui.Label word_wrap on multimonitor configuration
Restore docking order when loading layout
Fixed Label size when changing text
Fixing resize docking after reset
Fixed crash in detached menu
Fixed problems with layout when docking space is empty
Fixed menus and popups in application window
Fixed mouse_pressed_fn in FreeBezierCurve

Particles/Dynamics¶

Convert Flow menu to sub menu under Create menu.
FlowUsd. Migrate to omni.ui. Multithreading fix.
Fix Flickering in particles
Flow. Fix extension load error. Remove legacy renderer setting from UI.

Extensions¶

Add an option to enforce certain extensions to be loaded before the registry
Remove unused registries

USD/Hydra¶

Expose reference instanceable in preferences
Fixed bad dropping behavior with specific USD assets
Fix crash in selection due to USD being accessed by 2 threads
Fix Instanceable flag when drag into Stage Window
PxrHydraEngine robustness when GL interop is faulty
Fix reference editing

Omnigraph¶

remove unneeded/broken extensions

Content Browser¶

bug fix: slowness in populating directories
add visibility changed
Fixes artifacts in grid view of content browser

Filebrowser/Picker¶

Catch exception while refreshing cards asynchronously.
Filepicker thumbnails mismatched to items in grid view
Filepicker changes, adds thumbnail for USD…
Filebrowser implements async directory listing for guarding stability against network delays
Filebrowser: Added vertical spacing to cards in grid view to better accommodate text label

Physics¶

Updated USD to ignore physics changes to prims.

Miscellaneous¶

Adding guard for window.title to avoid crashing in –no-window mode
Cleanup warning in the viewport
Workaround instanceable cannot be set unpickable by setting instanceable after mouse release
[usda_edit] Added support for usd_omni_wrapper
Fixed restore toolbar (when doing Window-Layout-Reset in Create)
movie capture fixes
Omni kit menu utils updates
menu.edit can capture viewport-only screenshots
Adding checks to allow Kit fail gracefully in Legacy mode…
cosmetic improvements for the rotate widget in transform property window
Instantly hide the Transform sub-frame UI when there is no xformOp exist in a prim
Setting random imgui context right after detaching…
Returning the resize event back to its original place…
Remove Omniverse from extensions title
Add a transformOp menu in the Add button to add the missing xformOps.
orient(shown as euler) property widget was not updating when rotating object in the viewport
[GXF] Fixed crash in TreeView
select invert fix for no default prim
Fix perf problems due to Tf.Notice leak in various property widgets
Disable live update and ‘save and replace’ for read-only layers
Fixed drag-and-drop from stageview to stage window
[omni.kit.window.viewport] Do not show xform gizmo for joints

Rendering¶

Blacklist Pascal and Volta GPUs for ray-tracing
Set default value of allowCutoutOpacity to true
Improve load times in scenes with many small textures

2020.3.2 Hot Fix¶

General¶

Added a UsdManager::advanceSyncScopes that releases all deferred resources
Fixed crashreporter: Now reports submission id to log
Better treatment for unrecognized primvar from USD
Fixed particle systems uv bug
Improved (MGPU) device selection on hybrid setups
Fixed a bug that was resulting in alpha-masked materials exported from UE4 not having allowCutoutOpacity set.

2020.3¶

Content Browser¶

omni.kit.window.content_browser - new - A full replacement for the previous functionality implemented as a Python extension.
omni.kit.window.stageviewer - new - Inspect USD Stages in Memory from a content browser context menu

omni.ui¶

Many improvements and optimizations
New widgets such as multiline text-editor
Standalone omni.ui application to learn omni.ui

FilePicker¶

omni.kit.window.filepicker - new - A filepicker dialog that can be easily integrated into any Python extension.

Kit Microservices Framework¶

omni.services: Improved, extended
omni.kit.window.render_farm

Thumbnail Generation Service¶

omni.services.thumbnail.images
omni.services.thumbnail.usd
A thumbnailer service that generates thumbnails for local files (USD, Texture) as well as Omniverse files, and is integrated into the content browser (built with Kit Microservices)

Render Settings¶

omni.rtx.window.settings
omni.rtx.settings.core
omni.iray.settings.core

Movie Capture (new-gen capture tool which works with async rendering, IRay renderer)¶

omni.kit.capture - core
omni.kit.window.movie_maker - UI

IRay¶

now fully supported as a renderer

Extensions System¶

omni.kit.registry.nucleus Extensions Registry
omni.kit.window.extensions - new - Extensions UI/Browser

Hydra¶

omni.hydra.pxr - new - allow use of Pixar hydra render delegates in the Kit Viewport
Added hydra HdStorm support and add to Kit distro. (with support for USDPreviewSurface)

Script Editor¶

omni.kit.window.script_editor - improved and updated

Console¶

omni.kit.console - improved and updated

Materials and MDL support¶

omni.kit.material.library - new
general improvements and updates

ImageViewer¶

omni.kit.window.imageviewer - new

Asset Importer¶

omni.kit.tool.asset_importer - many improvements and updates

USD Collector Tool¶

omni.kit.tool.collect - rewritten

Splash Screen¶

omni.kit.window.splash - new - startup splash screen for Omniverse Apps

Layer Window¶

omni.kit.widget.layers - remove dependency on editor

Kit 2020.2.2 Hotfix¶

General¶

Improved CloudXR performance and update CloudXR version

Core Framework & USD¶

Fix referencing local files from inside omniverse files
Fix list cache not clearing deleted items.

2020.2.1 Hotfix¶

General¶

Updated omniverse_asset_converter to fix shapenet crash
Build: fixed missing libffi.so.6 issue on ubuntu 20 when loading omni.physx
Pasting URLs from ov-web into Kit content browser now works
Adding connection to server root after adding connection to server subdir now works
URLs to Nucleus directories didn’t work unless there was a shortcut in the content browser to the exact server
moved the /renderer/mdl/searchPaths/server setting to the right scope in kit-core.json file
Uploading of crash dumps to backtrace server re-enabled
Added Colorspace Support for UsdUVTexture
Added Colorspace Support and specular workflow in UsdPreviewSurface

Client Library¶

Bugfix: would sometimes (very rarely) cause data loss if you got a disconnect while uploading a file.
Bugfix: would fail to download a file if it was an exact multiple of 1MB
Bugfix: USD files from Nucleus servers were being deleted unless saved twice

omni.usd¶

API call to get Instance Path/URI from BBox Instance ID (and vice versa)

Extension System¶

General Improvements

Omniverse RTX¶

Support colorSpace and specular workflow in UsdPreviewSurface
Fix Path-Traced fog, was too dark when outside the fog
Fix naming of cutout opacity render settings
Remove hard-coded legacy server-side MDL search paths
Synthetic Data support: Add API to grab uri from instance index for omni.syntheticdata
Synthetic Data support: Dump bounding box data directly from instance constant
Treat translucent objects that cast shadows as opaque for the purposes of synthetic data gathering

2020.2.1 Hotfix¶

General¶

Updated omniverse_asset_converter to fix shapenet crash
Build: fixed missing libffi.so.6 issue on ubuntu 20 when loading omni.physx
Pasting URLs from ov-web into Kit content browser now works
Adding connection to server root after adding connection to server subdir now works
URLs to Nucleus directories didn’t work unless there was a shortcut in the content browser to the exact server
moved the /renderer/mdl/searchPaths/server setting to the right scope in kit-core.json file
Uploading of crash dumps to backtrace server re-enabled
Added Colorspace Support for UsdUVTexture
Added Colorspace Support and specular workflow in UsdPreviewSurface

Client Library¶

Bugfix: would sometimes (very rarely) cause data loss if you got a disconnect while uploading a file.
Bugfix: would fail to download a file if it was an exact multiple of 1MB
Bugfix: USD files from Nucleus servers were being deleted unless saved twice

omni.usd¶

API call to get Instance Path/URI from BBox Instance ID (and vice versa)

Extension System¶

General Improvements

Omniverse RTX¶

Support colorSpace and specular workflow in UsdPreviewSurface
Fix Path-Traced fog, was too dark when outside the fog
Fix naming of cutout opacity render settings
Remove hard-coded legacy server-side MDL search paths
Synthetic Data support: Add API to grab uri from instance index for omni.syntheticdata
Synthetic Data support: Dump bounding box data directly from instance constant
Treat translucent objects that cast shadows as opaque for the purposes of synthetic data gathering

2020.2¶

Client Library¶

New omni.client extension (all extensions using python/C++ client lib should set this as extension dependency).
omni.client python binding.
OmniClient.h C++ dynamic library interface.
OmniClient carbonite interface.
DataSource interface with carb.datasource-omniclient.plugin implementation.
Direct use of Connection Library, IConnectionHub, omni_usd_plugin, omni.connection, omni.connectionhub, omni.usd_plugin are now deprecated. Any new carbonite plugins, Kit extensions should develop with client library/omni.client directly. Any old extensions/scripts/plugins using these components will stop working and need to be updated.
URL format has changed. You do not need to make an explicit connection to a server to access the files, instead you specify the server name in the URL. For example if you want to load a file from localhost, previously you need to log into localhost first, then open omni:/Users/foo/bar.usd. Now you can open omniverse://localhost/Users/foo/bar.usd directly. Client library manages the connection internally.
With the new URL format, you can now reference USD layers across servers (experimental, material may not work properly).
Old omni: URL will still work in USD, but it’s recommended to update your files to use the full qualified omniverse:// URL.

Extensions System¶

Extension system now supports setting registry provider which can be implemented anywhere
Add omni.kit.registry.nucleus extension which implement registry provider interface using nucleus and client library
Add more API to extension manager to fetch extension info, to allow treating both remote and local extension in uniform way
Added “enabledCore” setting to enable some extensions before others (like extension registry).
Extensions 2.0 manager UI with remote extension browser
By default extension system now prefers highest extension version
Add “list all extensions” cmd param to kit.exe
Add publish command to kit.exe
package.target config property. Allows to specify platform specific filters. It is also autofilled when publishing. Allows publishing of binary extensions.
Semantic Versioning support, including prerelease and metadata
Proper package name for extensions (using version and package.target)
Version removed from premake and moved into extension.toml.
Extension.toml reworked, added [package] section to avoid polluting root, added various info for UI here.
CHANGELOG in extension.toml + example
Add platform info to IApp interface
Added live mode support for documentation editing (build_docs.bat -l)
Huge extension documentation update

General Improvements¶

Changed settings override command line prefix to –/ and previous prefix –carb/ is now deprecated.
Refactored and cleaned up standalone rendering codepath that is used in Kit Mini and Kit non-RTX.
Editor interface is bumped to version 1.0 to facilitate semantic compatibility.
Added flag –skip-core-config to force Kit to load without the implicit configuration files (kit-core.json and kit-default.json)
New way to process Kit experience configuration files, allowing configuration merging using –merge-config/-m command line arguments, with experimental support of configuration file imports (using “@import@” directive) and appending array values using “++” child field.
Kit data path now includes build number
New extension omni.kit.usda_edit that allows editing usd file as text in the external editor
Stage Window: displaying instance proxies
Content Browser: Ability to use custom context menu
Bugfix: Press F to frame objects will no longer include the bounds of Camera and Light gizmo.
Bugfix: Fix normal issues of creating standard mesh in z-up stage.
Bugfix: Stage Window: fixed tree updating when muting layers
Bugfix: Stage Window: fixed removing of multiple items
Bugfix: Stage Window: fixed Ctrl-A
Bugfix: Stage Window: fixed focus on selection

Animation¶

omni.anim.usdskel an OmniGraph-based extension to support Skinning, BlendShape (no skinning), BlendShape & Skinning (preskinning)
Split the transform constraints extension into three extensions: omni.anim.wrap (a mesh-to-mesh deformer), omni.anim.xform_constraints, omni.anim.pinConstraint
omni.anim.jiggle extension to simulate the secondary jiggle bounce mesh deformation
Add options in the Preference window to select default xformOp when creating new prims
Add support of USD layer offset such that animations in different layers with different timeCodePerSecond can play together, a.k.a auto retiming.
Add Transform spline interpolation supported in omni.anim.timesample_editor , such that the key framed xForm value can be evaluated in Bezier curve interpolation method.
Moved the timeCodePerSecond editing feature from the timeline UI to the omni.anim.timesample_editor window
Switched the default animation time unit from seconds to frames in the timeline UI
Improved the robustness of omni.anim.player such that it can playback almost all kind of animation scene. The only exception is the none-OmniGraph skeleton mesh pipeline, it is a known issue and will be address in the next release.

UI Framework¶

Moved Omni::UI to a separate extension
New embeddable omni.kit.widget.filebrowser UI widget for exploring file systems, including nucleus servers.
New widget, ImageWithProvider and a set of helper ImageProviders, which serve as a source of image data for the widget. ByteImageProvider allows to display raw byte data, RasterImageProvider allows to load a raster image and display it, VectorImageProvider allows to load vector image, rasterize it and display.
TreeView: rewrote to avoid using ImGui table
TreeView: the ability to reorder items
Added new extension omni.graph.ui that allows inspect omni.graph and UsdShade networks as graph view
Delayed UI population with Frame.set_build_fn
Ability to overlay existing windows
Bugfix: Fixed possible freeze/crash on window resize.
Bugfix: TreeView: fixed selection lag and selection crash
Bugfix: CheckBox: fixed disabled state
Bugfix: CollapsableFrame: fixed margin and padding

Kit Application UI/Material Workflow¶

Toolbar has been moved from C++ to python using omni.ui.
Layers
Layers window has been written with omni.ui and moved to python extension.
It supports live mode control per single layer.
Improvements to Cache/Live mode indicator.
Content Window now supports multiple servers at the same time. All local drives will also be listed by default.
Global login window is removed. On-demand login will popup when needed.
“file:” prefix is removed from local file path returned in FileDialog and in Content Window’s address bar (pending cherry-picking)
Improve the collect tool to optimize the collect performance.
Improve asset importer to support FBX version under 7.
New Copy Service extension for copying files between Nucleus and local file servers.
Stage widget type column on by default
Stage Widget show/hide columns
Bugfix: Certain aliasing on UI images has been improved.
Bugfix: Rasterized svg glyph is now center aligned

Cloud and Microservices¶

Kit control port extension is now part of Omniverse. It forms the base of the micro services framework that is being built around it. It
Kit-services is an application that makes it easy to get going with Kit and its micro services framework. Build, run and deploy kit microservices.
Basic facilities that make it easier to write stateless services using dependency injection.

Hydra Viewport¶

Early preview of the new hydra viewport extension in kit, accessed by running kit-hydra.bat in Windows. This viewport renders the USD world using render delegate plugins like Pixar’s OpenGL based hdStorm and hdEmbree. This allows kit to run on machines with non-RTX GPUs and be embedded in lightweight, quick loading experiences. The hydra viewport is not yet feature complete, but picking and camera controls are implemented.

Viewport Window¶

Performance improvements for UI draw event stream events creation/dispatch
Viewport context menu add group selected
Viewport window prim selection fix for context menu

Ansel¶

Cleaned up Ansel extension matrix code
Default save folder matches recommended Ansel default folder

Materials¶

Improved OmniGlass has more intuitive controls to simulate refractive materials. Please note, in some cases there can be a look change.
New OmniPBR_ClearCoat is a multi-layer physical material that adds an additional clear thin coat to OmniPBR.
Both materials also have Opacity versions that add cutout opacity mapping support.

Physics & Simulation - General¶

Debug visualization fixes
Grab with force can have now force value defined in Physics settings window
Fixed runtime switch of collision shapes inside bodies
Updated Physics demos to new UI, added custom parameters to demos
Improved convex decomposition performance and quality
Debug visualization for collisions supports time varying transformations
Physics demos are created under default prim
Improved errors while parsing physics data out of USD
Commands for physics menu - undo/redo works for physics menu
Undo/redo for physics properties changes
Physics error stream added
Support for distance joint springs
New PSCL (physics scripting language) demos
Documentation for physics extensions
Documentation for physics python bindings
Exposed disable gravity on PhysxRigidBodyAPI
Blast extension support for impact based damage

Physics & Simulation - Vehicles¶

Support for PhysX vehicles
Default input device support to drive a vehicle
Custom camera types
Special property windows
Vehicle creation wizard
Samples

Physics & Simulation - Blast¶

Voronoi fracture of UsdGeomMesh
“Explode view” of fractured chunks
Multilevel fracture - can select chunks in explode view (or stage view) and fracture those further
Ability to set interior materials of fractured meshes
Fracturing a mesh with a PhysicsAPI creates a destructible rigid body
Ability to choose kinematic or dynamic physics mode for the initial destructible rigid body
Can select multiple meshes and create a combined-mesh destructible
Reset feature deletes blast object and restores original mesh
Impact damage option
Contact threshold
Ability to attach a blast destructible to the static world or a dynamic rigid body
Damage profiles: radial, cutter, and impact spread
Base damage amount
Min/max damage distance
Impulse to apply to chunks when taking damage
Impact-to-damage setting
Max contact impulse, to allow heavy objects to pass through “weak” destructibles (such as a canonball through a window)

2020.1: Hotfix¶

General¶

Add texture supports for ShapeNet importer in omniverse_asset_converter
Updates from a referenced file that gets changed do not get reflected in a new scene.
Fixed showing of Black Sky When Opening Models in View
Fixed mouse picking for joint to be forced based since it was too strong, leading to joint being pulled apart
Changed error reporting for articulation joint created without bodies
Fixed problem with disabling of joints, they can now be disabled
Fixed crash when removing collisionAPI in Kit while simulation is running
distance joint spring enabled exposed
Following CPU/GPU logs added during startup
A table to show: Memory size (used/free), swap/page size (used/free), CPU and GPU brand names, CPU cores and logical processors.
Enumerate all GPUs on device creation failure
Indicate which GPU chosen by setting active in table
Scoring GPUs: priority based on per 256 MB GPU memory and “RTX” in the name
Improve GPU selection for multi-gpu: Skip old GPUs and fix incorrect GPU counting
Fixed the problem where Microfacet with roughness of 0 cause blurry reflections and transmissions by updating to newer MDL SDK
Fixed Viewport corruption during View startup on MGPU
Fixed perf hit caused by enabling synthetic data bounding boxes
Fixed problem which was causing dramatic changes in Viewport brightness changes when moving camera
Implement a camera sensor to extract the tight 2D bounding box data of the objects that a camera has in view

Isaac Sim¶

mechanism to map instance segmentation URI to a USD Object for omni.syntheticdata

Physics/Simulation¶

Switched mouse drag to a weaker force based approach so it doesn’t pull joints apart. Previous joint based behaviour can be enabled in physics settings.
Joints can be enabled/disabled through jointEnabled attribute
Fixed crash when removing collisionAPI in Kit while simulation is running

2020.1¶

Core Framework & USD¶

Refactor of the Kit Classes splitting the API in more logical pieces.
New Extension system (Extension 2.0) with dependency management and clearer structure.
Many of the Kit Windows are now Extension 2.0.
New interface ITimeline: Manages a global timeline for animation control.
Layers’ interfaces have been re-organized to support nesting of layers (support for sub-layers of sub-layers).
Added support for synchronizing time across Omniverse stage in Live mode.
Added default option to keep UsdPrim’s world transform when re-parenting.
Allowed collapsed copy of reference prim’s descendants.
UsdShadeShader prim’s subIdentifier now requires no namespace prefix and will issue a warning if namespace is included.
New mesh generator and general primitive improvements.
White Mode now has a global exception list in Preferences to exclude materials that will not be changed when White mode is enabled.
USD diagnostic message is now turned on by default to help guide correct USD usage and debugging.
Add support for nesting sub-layers for USD compliance so users can operate the whole layer tree.
Improved stage save workflow to control the granularity of saving of stage.
OM-Fixed UsdPrim visibility not honoring display purpose filter settings.
OM-Popup menu when drag and drop MDL file onto a UsdPrim now only includes UsdGeomGprim, UsdGeomSubset and UsdGeomXform.
OM-10x default far-plane to allow rendering bigger scenes.
OM-Improved performance when framing objects by pressing F in viewport.
OM-Fixed std::bad_weak_ptr exception on several omni.kit.ui python bindings.
OM-Fixed “Create Camera from View” only taking the local transform of the source camera.

UI Framework¶

New UI toolkit called Omni::UI to enable extendable and visually compelling user interfaces.
Omni UI Components: Dynamic layout system, Flexible styles, Button, Image, Label, Model based widget like ColorWidget, Slider, ComboBox, ToolButton.
Advanced UI element for Tree, List Views using fast and flexible models.
Workspace system to control Kit’s windows and docking.
Streaming Widget extension.
New Web component based on chrome to create web content views and based interfaces.
Previous python UI system is still present but will be deprecated over the next couple of versions.
Stage View re-implemented using Omni::UI in with Python.

Kit Application UI/Material Workflow¶

OM-Status bar now displays the last logging message at bottom left corner.
OM-Support to drag and drop materials from stage window to viewport window to enable binding of material.
OM-Context menu support using Right click in Layer, Stage and Viewport Windows.
OM-New Scene Presets and options to create your own.
OM-New Selection workflow to Select All, None, Inverse, Hide, Unselect etc.
OM-Viewport HUD stats on/off.
OM-Viewport Display Purpose menu.
OM-Viewport Display By Type menu.

Cloud and Microservices¶

OM-New Control Port extension to write micro-services for Kit.
OM-New Kit agent extension to enable to launch Kit instance remotely.

Streaming¶

OM-Created an Omniverse Kit Remote installer.
OM-Client streaming window is now resizable, Kit must be launched with –carb/app/livestream/allowResize=true to enable the feature.
OM-Windows clients are now launched automatically when a URL beginning with kit-remote-2020-1:// is present. For instance, kit-remote-2020-1://127.0.0.1 would launch Omniverse Kit Remote and automatically attempt to connect to a streaming Kit server on localhost.
OM-Allow High DPI sessions in Omniverse Kit Remote with the -d command line parameter.

Feature or Issue	Minimum Windows Driver Versions	Minimum Linux Driver Versions
Live streaming on systems with multiple GPUs	442.76 or 450.78	Unknown
Reduced memory usage with small meshes with Vulkan	450+	450+
Ansel support on systems with multiple GPUs	446.09, 451.02	Not applicable (not supported)
Fix for crashes on Linux (X windows or full system hang)	not applicable	450.34
Fix for some GPU memory allocation errors on Linux	not applicable	450.29

Known issues caused by driver bugs or missing functionality¶

OM-Standard Surface material causes crashes (all platforms)
OM-Cached Path-Tracing is not supported on Vulkan (Windows and Linux)
OM-Multi-GPU is not supported on Linux

Materials¶

OM-Improvements to MDL loading
OM-Changes to default binding strength to improve authoring experience
OM-Bug fix to only author material binding at authoring locations.
OM-Validate / update all clients to write correct MDL schema
OM-Added UDIM support in Kit and Maya
OM-Drag and drop materials to Viewport presents only bindable locations in the popup list. (phase 1 update, phase 2 next release)
OM-Added ability to select bounded objects from material.
OM-UsdPreviewSurface default ST wrap mode is now set to Repeat
OM-Making updates and improvements to Material Documentation in 2020.1.
OM-New MDL SDK with MDL 1.6 Support
OM-Hair BSDF support
OM-MDL Plugin for Arnold

OmniGraph¶

OM-Compute graph framework is now OmniGraph!
OM-Added a number of deformer, animation constraint, and particle system nodes
OM-Added Python bindings
OM-Added ability to create nodes through Python
OM-Added ability to create sub-graphs
OM-Added node connection UI
OM-Added baseline documentation about the graph system and the roadmap ahead
OM-Simplified Compute Node registration process
OM-Added support for simplified node type registration

Animation¶

OM-Many animation tools are now based on OmniGraph
OM-Added OmniGraph support for animation constraints (transform, mesh constraints)
OM-Polished transform constraint, which allows users to constrain a USD prim to transform of another prim (or a joint in USDSkel).
OM-Polished mesh-mesh constraint, which deforms a mesh based on deformation of another mesh
OM-Added a few deformers based on OmniGraph framework
OM-Skinning support for UsdSkel as Omnigraph deformer (omni.anim.deformer)
OM-Polished anim clips (omni.anim.clips), which allows users to import, retime USDSkel based animations
OM-Added anim player tools provide basic support for animation play of independent animation clips
OM-Anim behavior extension was removed, and no longer supported
OM-Basic time sample (key frame) editing through the time sample editor (omni.kit.builtin.timesample_authoring extension
OM-Various bug fixes related to UsdSkel and animation loading from USD and FBX.

Physics / Simulation¶

OM-Physics and PhysX USD schema updated.
OM-New Physics properties tab.
OM-Improved physics visualization options.
OM-User can remove physics components.
OM-Masses can be specified manually with Mass API components.
OM-Added collision filtering with collision groups.
OM-Added joint creation and editing.
OM-Added contact reporting for extensions.
OM-Improved articulation editing.
OM-Physics property editor for editing schema APIs directly.
OM-Blast destruction added.

Kit Known Limitations¶

During live edit, objects often revert to the original positions (often during viewport drag)
During live edit, flickering can occur with objects the viewport which affects those participants viewing the edit (and does not affect the participant performing the edit operation on the object)
Live editing of the same layer by multiple users can cause instability in Kit, resulting in crashes and or freezing of the UI
Kit Application UI/Material Workflow
- Live MDL file editing is broken (need to restart Kit to reload edited MDL).
- Live material parameter editing between Connector (e.g. Maya) and Kit is not working properly
- Cross-server reference of USD which contains MDL that uses server-side search path is not working properly. You will see red material in such cases.

Release Notes¶

102.0¶

omni.usd¶

omni.kit.window.file¶

omni.kit.window.movie¶

omni.kit.widget.stage¶

omni.graph.core¶

carb.flatcache¶

omni.kit.property.layer¶

omni.kit.window.filepicker¶

omni.kit.widget.filebrowser¶

omni.ui¶

omni.kit.usda¶

omni.ext¶

omni.kit.widget.layers¶

omni.kit.material.library¶

omni.kit.tool.collect¶

omni.kit.core.tests¶

omni.kit.window.preferences¶

omni.flowusd¶

omni.kit.window.viewport¶

omni.kit.window.content¶

omni.kit.thumbnails.usd¶

omni.kit.compatibility¶

omni.kit.app¶

omni.graph.ui¶

omni.rtx.window.settings¶

omni.graph¶

omni.example.ui¶

omni.kit.window.usd¶

omni.kit.window.property¶

omni.kit.capture¶

omni.kit.registry.nucleus¶

omni.kit¶

omni.kit.livestream.core¶

omni.kit.commands¶

omni.kit.window.profiler¶

omni.kit.window.popup¶

omni.example.hydra¶

omni.kit.test¶

omni.kit.widget.versioning¶

omni.renderer¶

omni.kit.window.toolbar¶

omni.debugdraw¶

omni.kit.window.render¶

omni.kit.window.extensions¶

omni.kit.window.material¶

omni.kit.context¶

omni.kit.telemetry¶

omni.kit.property.usd¶

omni.appwindow¶

omni.kit.menu.file¶

omni.kit.menu.utils¶

omni.kit.renderer.core¶

omni.kit.splash¶

omni.kit.window.script¶

omni.hydra¶

omni.hydra.scene¶

omni.kit.notification¶

omni.usd.schema.anim¶

omni.kit.xr¶

omni.kit.versioning¶

omni.graph.tools¶

omni.kit.widget.graph¶

omni.videoencoding¶

omni.services.transport.client.idl¶

omni.gpu¶

omni.kit.stage¶

omni.renderer.utils¶

omni.ui.ImageProvider¶

omni.kit.property.light¶

omni.services.thumbnails.images¶

omni.kit.window.stage¶

omni.services.transport.client.https¶

omni.kit.tagging¶

omni.kit.window.cache¶

omni.hydra.pxr¶

omni.kit.quicklayout¶

omni.kit.window.stream¶

omni.services.mdl¶