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This is an Intermediate Level tutorial. Even though no previous knowledge of Phoenix is required to follow along, re-purposing the setup shown here to another shot may require a deeper understanding of the host platform's tools, and some modifications of the simulation settings.

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In this tutorial we explore how to create dust-like simulation using Chaos Phoenix smoke. We go through setting the right simulation units, appropriate geometry dimensions and scene setup suggestions. Most importantly, we guide you through how to make a realistic sand smoke coming up as the horses step on the ground using Voxel Tuner. We compare how different values of some crucial parameters change the whole simulation's look.

 

This simulation requires Phoenix 4.10 Official Release and V-Ray Next Official Release for 3ds Max 2017 at least. If you notice a major difference between the results shown here and the behavior of your setup, please reach us using the Support Form.

 

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titleDownload Project Files
urlhttps://drive.google.com/uc?export=download&id=1CFpLXdkQtebBJBsNqx3WQ_jtkzdXcYoL

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<iframe width="720" height="480" src="https://www.youtube.com/embed/sgGt94GPe6g?version=3&loop=1&playlist=sgGt94GPe6g" frameborder="0" allowfullscreen></iframe>

 

Units Setup

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Scale is crucial for the behavior of any simulation. The real-world size of the Simulator in units is important for the simulation dynamics. Large-scale simulations appear to move more slowly, while mid-to-small scale simulations have lots of vigorous movement. When you create your Simulator, you must check the Grid rollout where the real-world extents of the Simulator are shown. If the size of the Simulator in the scene cannot be changed, you can cheat the solver into working as if the scale is larger or smaller by changing the Scene Scale option in the Grid rollout.

The Phoenix solver is not affected by how you choose to view the Display Unit Scale - it is just a matter of convenience.

The horse used in the simulation is modeled in centimeters and throughout the fluid simulation we keep using the same unit. If you want to simulate a massive scene, then you might consider using meters.

Go to Customize → Units Setup and set Display Unit Scale to Metric Centimeters.

Also, set the System Units such that 1 Unit equals 1 Centimeter.

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