Page Comparison

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• Create a → basic HyFLIP scene, for example with the “Open Domain” tool.
• Add some turbulence by moving an → animated object through the fluid.
• Simulate.

The result of this quick start tutorial. Here a → "Waterline" emitter has been added. The particles have been snapped to the mesh with the → "Snap Foam Particles" tool. Furthermore, the amount of waterline particles has been increase with the → "MultiPoint" option:

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The Base Mesh

Before we proceed, it is important to set the (already simulated) domain to → “cache”:

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• Click on the domain node's small green rocket.
• The yellow colour indicates the cache mode.
• Move the domain's viewport icon (plane with four boxes) to the upper third of the fluid.

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• Mesh shelf > Hybrido mesh VDB
• Boundaries > Open Boundaries > Yes
• The last action will remove all polygons outside and below the domain's viewport plane.

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• Displacement > Use displacement > Yes

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Open the domain node's → “Ocean Statistical Spectrum”. There you will see a long parameter list, but just a few a really relevant for your daily work. The result can only be seen when you create a mesh. Here are the most important settings:

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Calculate displacement

Set this option to “Always”:

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Go to a frame with enough detail, splashy structures, and turbulence. The Then select the mesh and click on

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• Mesh shelf > Build mesh to create a single mesh from the current frame.

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A possible result could look like in this image:

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In order to proceed and refine your settings, change the HyFLIP domain's “Ocean Statistical Spectrum” parameters and create test meshes until you are satisfied. Please also consider the → “Displacement” section's attenuation options, to remove the spectrum waves from splashy structures or areas with high vorticity.:

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The Mesh Range

In the final step, the entire simulation range is meshed. Currently, the displacement has been created for a single frame:

• Reset the scene and simulate.
• The domain's “cache” mode prevents the fluid from being re-simulated – , and only the displacement is calculated.
• The mesh is created simultaneously.