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NVIDIA Blast Gem

The NVIDIA Blast Gem uses the NVIDIA Blast library to provide fast, high-fidelity destruction simulation in Open 3D Engine.

Note:
NVIDIA Blast for O3DE requires a SideFX Houdini commercial or indie license to create assets. The apprentice license is not sufficient. For more information on Houdini, see SideFX’s home page. The precompiled Houdini plug-ins supplied with the NVIDIA Blast Gem require Houdini 18.0.

For NVIDIA Blast developer information, see Simulated destruction with NVIDIA Blast .

Functionality provided by the NVIDIA Blast Gem

The NVIDIA Blast Gem provides the following:

  • Blast Family Mesh Data component that adds NVIDIA Blast meshes to an entity.

  • Blast Family component that enables NVIDIA Blast simulation for an entity.

  • Blast Configuration editor available in the Tools menu in O3DE Editor.

  • Blast Materials to set physical properties for NVIDIA Blast assets available in Asset Editor.

  • Blast Script Canvas nodes to script destruction simulation.

  • Plug-ins and Houdini Digital Assets for SideFX Houdini to fracture geometry and export NVIDIA Blast assets.

  • A Python Asset Builder to process NVIDIA Blast assets and generate blast slices.

  • A public C++ API that allows other systems and Gems to access NVIDIA Blast simulation functionality.

Enable the NVIDIA Blast Gem

  1. Use Project Manager to add the NVIDIA Blast Gem to your project. The NVIDIA Blast Gem requires the following Gems as dependencies:

    • LmbrCentral

    • PhysX

    Important:
    Though not required, we highly recommend that you enable the Python Asset Builder Gem with the NVIDIA Blast Gem. The NVIDIA Blast Gem includes a Python asset builder script that automatically processes mesh assets for NVIDIA Blast and creates a blast slice asset.

  2. Configure the build:

    cmake -B <CMake build dir> -S . -G "Visual Studio 16"
    Note:
    Use Visual Studio 16 as the generator for Visual Studio 2019, and Visual Studio 17 for Visual Studio 2022. For a complete list of common generators for each supported platform, refer to Configuring projects.

  3. Build your project:

    cmake --build <CMake build dir> --target <Project name> --config profile -- -m