AWS SimSpace Weaver Features

SimSpace Weaver works by dividing the simulation world into discrete areas called spatial partitions. SimSpace Weaver automatically partitions your simulation world according to your predefined configuration. Each spatial area is managed by a SimSpace Weaver app that is responsible for the simulation logic and behavior of all entities within that area. SimSpace Weaver currently supports partitioning into a uniform 2D grid.

SimSpace Weaver maintains the global state of all simulated entities, meaning that every entity can be aware of each other's spatial presence and state. SimSpace Weaver also manages the memory and replication of entity data between servers, allowing entities to seamlessly cross boundaries between different simulation areas.

Applications can read simulation data from other areas of the simulation using the subscription system. This means simulation objects can account for events happening in neighboring partitions or interact with other objects along partition boundaries. Use subscriptions to read data out of the simulation for visualization and interactivity.

The SimSpace Weaver app SDK contains Messaging APIs that you can use to send and receive messages between applications in a simulation. Subscriptions provide a pull method to read simulation events; messaging provides a push method to transmit data in the simulation. SimSpace Weaver messages contain the sender in the message header so message recipients can reply. You can use messages to forward information that an application receives from an external client to other applications in the simulation.

To learn more, see our samples and tutorials.

Run simulations with different sets of logic and behaviors in the same simulated environment. Each domain has its own allocated compute resources. Entities can interact and transfer across domains so the simulation still behaves as a single, seamless world. Use multi-domain for more advanced simulations that combine different types of entities that have differing compute needs. For example, a simulation of a virtual city may utilize multi-domain to have a domain dedicated to simulating pedestrians and another dedicated to simulating traffic.

Snapshots allow you to save the state of your simulation entities at any point in time. Snapshot files are uploaded and stored in Amazon S3. Use your snapshot files to launch new simulations with the existing Start Simulation API. Snapshots are an ideal tool for simulations with branching scenarios and addressing backup and restore use cases. Use snapshots to save your simulation progress at regular intervals, especially for long running simulations.

Run simulation code by using your own local hardware to accelerate iteration times and test for free. AWS SimSpace Weaver Local uses the same APIs as the cloud service, so you can seamlessly transition to the cloud for full-scale production without needing to modify any code. AWS SimSpace Weaver Local is currently available for Windows.

SimSpace Weaver offers built-in integrations with Unreal Engine 5 and Unity LTS Release 2021.3.7f1 to accelerate your development with these popular tools.

The default update rate for SimSpace Weaver simulations is 30 Hz. You can adjust the update rate to 10 Hz, 15 Hz, or allow the clock to run as fast as possible to fit your simulation needs while still keeping all your applications time synchronized.

You can utilize your own container images to run your simulation applications instead of AWS SimSpace Weaver’s stock Amazon Linux (AL2) container. Create your own AL2 based container images with any dependencies required by your simulation applications and upload the images to Amazon Elastic Container Registry (Amazon ECR). Use this feature to help reduce the file size of your simulation applications, increase upload speeds, and improve iteration times.

SimSpace Weaver has no upfront commitments. You pay only for the compute resources used by your simulation for however long you use them.

For details, see the pricing page.