| Asset Caching |
| ============= |
|
|
| Assets used in Isaac Lab are hosted on AWS S3 buckets on the cloud. |
| Asset loading time can depend on your network connection and geographical location. |
| In some cases, it is possible that asset loading times can be long when assets are pulled from the AWS servers. |
|
|
| If you run into cases where assets take a few minutes to load for each run, |
| we recommend enabling asset caching following the below steps. |
|
|
| First, launch the Isaac Sim application: |
|
|
| .. tab-set:: |
| :sync-group: os |
|
|
| .. tab-item:: :icon:`fa-brands fa-linux` Linux |
| :sync: linux |
|
|
| .. code:: bash |
|
|
| ./isaaclab.sh -s |
|
|
| .. tab-item:: :icon:`fa-brands fa-windows` Windows |
| :sync: windows |
|
|
| .. code:: batch |
|
|
| isaaclab.bat -s |
|
|
| On the top right of the Isaac Lab or Isaac Sim app, look for the icon labeled ``CACHE:``. |
| You may see a message such as ``HUB NOT DETECTED`` or ``NEW VERSION DETECTED``. |
|
|
| Click the message to enable `Hub <https://docs.omniverse.nvidia.com/utilities/latest/cache/hub-workstation.html>`_. |
| Hub automatically manages local caching for Isaac Lab assets, so subsequent runs will use cached files instead of |
| downloading from AWS each time. |
|
|
| .. figure:: /source/_static/setup/asset_caching.jpg |
| :align: center |
| :figwidth: 100% |
| :alt: Simulator with cache messaging. |
|
|
| Hub provides better control and management of cached assets, making workflows faster and more reliable, especially |
| in environments with limited or intermittent internet access. |
|
|
| .. note:: |
| The first time you run Isaac Lab, assets will still need to be pulled from the cloud, which could lead |
| to longer loading times. Once cached, loading times will be significantly reduced on subsequent runs. |
|
|
| Nucleus |
| ------- |
|
|
|
|
| Before Isaac Sim 4.5, assets were accessed via the Omniverse Nucleus server, including setups with local Nucleus instances. |
|
|
| .. warning:: |
| Starting with Isaac Sim 4.5, the Omniverse Nucleus server and Omniverse Launcher are deprecated. |
| Existing Nucleus setups will continue to work, so if you have a local Nucleus server already configured, |
| you may continue to use it. |
|
|
