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mati-nvidia/developer-office-hours/exts/maticodes.doh_2022_10_07/scripts/create_viewport.py

# SPDX-License-Identifier: Apache-2.0 import carb import omni.kit.viewport.utility as vp_utils from omni.kit.widget.viewport.api import ViewportAPI vp_window = vp_utils.create_viewport_window("My Viewport") vp_window.viewport_api.fill_frame = True vp_api: ViewportAPI = vp_window.viewport_api carb.settings.get_settings().set('/rtx/rendermode', "PathTracing") vp_api.set_hd_engine("rtx")

Python

mati-nvidia/developer-office-hours/exts/maticodes.doh_2022_10_07/docs/README.md

# Developer Office Hour - 10/07/2022 This is the sample code from the Developer Office Hour held on 10/07/2022, Mati answered some developer questions from the NVIDIA Omniverse forums regarding Kit, Omniverse Code, Python, and USD. ## Questions - How do I create another viewport? - How do I use the Script Node?

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mati-nvidia/developer-office-hours/exts/maticodes.doh_2022_12_02/maticodes/doh_2022_12_02/extension.py

# SPDX-License-Identifier: Apache-2.0 import carb import omni.ext import omni.ui as ui class MyWindow(ui.Window): def __init__(self, title: str = None, **kwargs): super().__init__(title, **kwargs) self.frame.set_build_fn(self._build_window) def _build_window(self): with ui.ScrollingFrame(): with ui.VStack(height=0): with ui.HStack(height=0): ui.Label("My Label") MyCoolComponent() def clicked(): carb.log_info("Button Clicked!") ui.Button("Click Me", clicked_fn=clicked) class MyCoolComponent: def __init__(self): with ui.VStack(): ui.Label("Moar labels- asdfasdfasdf") ui.Label("Even moar labels") with ui.HStack(): ui.Button("Ok") ui.Button("Cancel") class MyExtension(omni.ext.IExt): def on_startup(self, ext_id): """_summary_ Args: ext_id (_type_): _description_ """ carb.log_info("[maticodes.doh_2022_12_02] Dev Office Hours Extension (2022-12-02) startup") self._window = MyWindow("MyWindow", width=300, height=300) def on_shutdown(self): carb.log_info("[maticodes.doh_2022_12_02] Dev Office Hours Extension (2022-12-02) shutdown") if self._window: self._window.destroy() self._window = None

Python

mati-nvidia/developer-office-hours/exts/maticodes.doh_2022_12_02/scripts/spawn_objects.py

# SPDX-License-Identifier: Apache-2.0 import carb.events import omni.kit.app import omni.kit.commands import logging time_since_last_create = 0 update_stream = omni.kit.app.get_app().get_update_event_stream() def on_update(e: carb.events.IEvent): global time_since_last_create carb.log_info(f"Update: {e.payload['dt']}") time_since_last_create += e.payload['dt'] carb.log_info(f"time since: {time_since_last_create}") if time_since_last_create > 2: carb.log_info("Creating cube") omni.kit.commands.execute('CreateMeshPrimWithDefaultXform', prim_type='Cube') time_since_last_create = 0 sub = update_stream.create_subscription_to_pop(on_update, name="My Subscription Name") sub = None

Python

mati-nvidia/developer-office-hours/exts/maticodes.doh_2022_12_02/docs/README.md

# Developer Office Hour - 12/02/2022 This is the sample code from the Developer Office Hour held on 12/02/2022, Mati answered some developer questions from the NVIDIA Omniverse forums regarding Kit, Omniverse Code, Python, and USD. ## Questions - How do I uninstall an extension? - How do I export USDZ? - Where is the extension I was working on? - How do I create complex UI without so much indented Python code?

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mati-nvidia/developer-office-hours/exts/maticodes.doh_2022_08_12/maticodes/doh_2022_08_12/extension.py

# SPDX-License-Identifier: Apache-2.0 import carb import omni.ext from omni.kit.viewport.utility import get_active_viewport_window import omni.ui as ui from .viewport_scene import ViewportScene from .object_info_model import ObjectInfoModel class MyWindow(ui.Window): def __init__(self, title: str = None, delegate=None, **kwargs): super().__init__(title, **kwargs) self._viewport_scene = None self.obj_info_model = kwargs["obj_info_model"] self.frame.set_build_fn(self._build_window) def _build_window(self): with ui.ScrollingFrame(): with ui.VStack(height=0): ui.Label("My Label 2") ui.StringField() ui.StringField(password_mode=True) def clicked(): self.obj_info_model.populate() ui.Button("Reload Object Info", clicked_fn=clicked) def destroy(self) -> None: return super().destroy() class MyExtension(omni.ext.IExt): # ext_id is current extension id. It can be used with extension manager to query additional information, like where # this extension is located on filesystem. def on_startup(self, ext_id): # Get the active Viewport (which at startup is the default Viewport) viewport_window = get_active_viewport_window() # Issue an error if there is no Viewport if not viewport_window: carb.log_error(f"No Viewport Window to add {ext_id} scene to") return # Build out the scene model = ObjectInfoModel() self._viewport_scene = ViewportScene(viewport_window, ext_id, model) self._window = MyWindow("MyWindow", obj_info_model=model, width=300, height=300) def on_shutdown(self): if self._window: self._window.destroy() self._window = None if self._viewport_scene: self._viewport_scene.destroy() self._viewport_scene = None

Python

mati-nvidia/developer-office-hours/exts/maticodes.doh_2022_08_12/scripts/viewport_popup_notification.py

# SPDX-License-Identifier: Apache-2.0 # https://docs.omniverse.nvidia.com/py/kit/source/extensions/omni.kit.notification_manager/docs/index.html?highlight=omni%20kit%20notification_manager# import carb def clicked_ok(): carb.log_info("User clicked ok") def clicked_cancel(): carb.log_info("User clicked cancel") import omni.kit.notification_manager as nm ok_button = nm.NotificationButtonInfo("OK", on_complete=clicked_ok) cancel_button = nm.NotificationButtonInfo("CANCEL", on_complete=clicked_cancel) notification_info = nm.post_notification( "Notification Example", hide_after_timeout=False, duration=0, status=nm.NotificationStatus.WARNING, button_infos=[ok_button, cancel_button], )

Python

mati-nvidia/developer-office-hours/exts/maticodes.doh_2022_08_12/scripts/create_many_prims.py

# SPDX-License-Identifier: Apache-2.0 from pxr import UsdGeom import omni.kit.commands import omni.usd stage = omni.usd.get_context().get_stage() cube_paths = [] for i in range(10): cube_path = omni.usd.get_stage_next_free_path(stage, "/World/Cube", prepend_default_prim=False) cube_paths.append(cube_path) omni.kit.commands.execute("CreatePrim", prim_type="Cube", prim_path=cube_path) # UsdGeom.Cube.Define(stage, cube_path)

Python

mati-nvidia/developer-office-hours/exts/maticodes.doh_2022_08_12/scripts/refer_to_child_prim.py

# SPDX-License-Identifier: Apache-2.0 # https://docs.omniverse.nvidia.com/prod_usd/prod_usd/quick-start/hierarchy.html import omni.usd stage = omni.usd.get_context().get_stage() starting_prim = stage.GetPrimAtPath("/World/New") for shape in starting_prim.GetChildren(): print(shape) for shape_child in shape.GetChildren(): print(shape_child) for prim in stage.Traverse(): print(prim)

Python

mati-nvidia/developer-office-hours/exts/maticodes.doh_2022_08_12/scripts/create_group_anywhere.py

# SPDX-License-Identifier: Apache-2.0 from pxr import Sdf import omni.kit.commands import omni.usd stage = omni.usd.get_context().get_stage() children = [] for i in range(3): child = omni.usd.get_stage_next_free_path(stage, "/World/Cube", prepend_default_prim=False) children.append(child) omni.kit.commands.execute("CreatePrim", prim_type="Cube", prim_path=child) group_path = Sdf.Path("/World/New/Hello") omni.kit.commands.execute("CreatePrimWithDefaultXformCommand", prim_type="Scope", prim_path=str(group_path)) for child in children: prim = stage.GetPrimAtPath(child) name = prim.GetName() omni.kit.commands.execute("MovePrim", path_from=child, path_to=group_path.AppendPath(name))

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mati-nvidia/developer-office-hours/exts/maticodes.doh_2022_08_12/scripts/does_prim_exist.py

# SPDX-License-Identifier: Apache-2.0 from pxr import Usd, UsdGeom import omni.usd stage = omni.usd.get_context().get_stage() prim = stage.GetPrimAtPath("/World/New/Hello") print(prim) print(prim.IsValid()) prim = stage.GetPrimAtPath("/World/New/Fake") print(prim) print(prim.IsValid())

Python

mati-nvidia/developer-office-hours/exts/maticodes.doh_2022_08_12/docs/README.md

# Developer Office Hour - 08/12/2022 This is the sample code from the Developer Office Hour held on 08/12/2022, Mati answered some developer questions from the NVIDIA Omniverse forums regarding Kit, Omniverse Code, Python, and USD. ## Questions - How do I create many prims at available prim paths? - How do I create a group at a specific prim path? - Is there a way to check if a prim exists? - How do I refer to the child of a prim without giving the prim path? - How can I create a notification popup in the viewport with a log message? - How do I show labels in the viewport for multiple prims? ...

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