Generate particles with ocean velocities within the ocean surface and the specified box.

The top level of the particles before being deformed by the ocean surface. A value of zero represents the surface of the ocean.

Fill the bottom of the tank with particles, starting at the Water Level value.

Specifies the size of the layer of particles to create.

Specifies the size of the guiding surface applied to the FLIP simulation.

Random seed for creating jitter.

The amount of jitter to apply to the positional values of the particles.

Delete any particles inside any collision objects plugged into the second input.

The Surface SDF will represent the ocean at the specified depth. This differs from simply offsetting the output surface SDF as it takes into account the Depth Falloff setting.

Controls the radius of the points used to generate volumes. Higher values are more expensive but give smoother volumes.

Output a field containing the ocean velocity values.

When generating velocity volumes, how many voxels from the ocean surface to extrapolate velocity values.

Create a small layer around the perimeter of the simulation to maintain surface and velocity. Enabling this layer will decrease the size of the active simulation by the amount specified in the Padding parameters.

The size of the layer extruded into the simulation from the lower simulation boundaries. Set this parameter to zero to disable the layer on any given axis.

The size of the layer extruded into the simulation from the upper simulation boundaries. Set this parameter to zero to disable the layer on any given axis.

The type of surface to evaluate, Ocean or Flat. The parameters for the Ocean type are from an embedded Ocean Evaluate SOP. The parameters for the Flat type are from an embedded Particle Fluid Tank SOP.

The time at which to evaluate the ocean surface.

Downsample the incoming ocean spectrum before evaluating any ocean values. This parameter specifies the number of powers of two to remove from the resolution of the incoming ocean spectrum. For example, if the spectrum was originally specified at resolution 10 to generate a 1024 x 1024 volume, downsampling by 2 will evaluate ocean volumes at resolution 8, a 256 x 256 volume.

Downsample the incoming ocean spectra to the specified maximum resolution before evaluating any ocean values. This parameter is useful to avoid evaluation of very high-resolution spectra when only requiring simulation data, for example. It can also be more convenient than the Downsample parameter when there are multiple incoming spectra of different resolutions.

Specifies how deformation and velocity values falloff as the input points lie below the ocean surface.

An additional scale applied to the exponential falloff modes in Depth Falloff. For the most physically accurate values this should be set to 1 in conjunction with the Exponential by Frequency mode.

The number of divisions along the depth axis if the computed ocean are 3D, as specified by the Depth Falloff parameter. Higher values are more accurate but more expensive to calculate.

When generating volumes and points, this node needs to calculate the maximum horizontal and vertical displacement in the input ocean waves. If this parameter is enabled, the displacement will be estimated only once at the specified frame, which is fast, gives a stable point output, and is typically accurate enough for good results. However, in the case of animated wave amplitudes or quickly varying instancing geometry, it may be necessary to continuously re-calculate the displacement by disabling this parameter.

Scatter points on the surface of the tank, which can help create a flat surface for a FLIP simulation. For a value of 1 the scattered points will be approximately separated by Particle Separation. Increasing this value will oversample the surface.

The points will be oversampled to this distance from the surface of the tank if Oversampling is enabled. This parameter is specified in multiples of the Particle Separation.