Using particle simulations, how can I make rain

Omniverse Isaac Sim
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Not sure if it’s possible

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Hi @wilson.lucena - Creating a rain effect using particle simulations in Omniverse Kit involves several steps. Here’s a general outline of the process:

  1. Create a Particle System: First, you need to create a particle system. This can be done by going to “Create > Physics > Particle System”. This will create a new particle system in your scene.
  2. Configure the Emitter: The emitter is responsible for generating the particles. For a rain effect, you’ll want to configure the emitter to generate particles at a high rate, and in a downward direction. You can adjust these settings in the “Emitter” section of the particle system’s properties.
  3. Set Particle Properties: You’ll also need to adjust the properties of the particles themselves. For rain, you’ll want small, fast-moving particles. You can adjust the size and speed of the particles in the “Particle” section of the particle system’s properties.
  4. Add a Collider: To make the rain particles interact with the environment (for example, to make them bounce off the ground or other objects), you’ll need to add a collider to those objects. This can be done by selecting the object and adding a “Physics > Collider” component.
  5. Visualize the Particles: Finally, to make the particles visible, you’ll need to add a “Particle Visualizer” component to the particle system. This component allows you to adjust how the particles are rendered, including their color and opacity.

Remember that creating a convincing rain effect may require some fine-tuning of these settings, as well as adding additional effects such as splashes or ripples when the rain hits a surface.

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