The algorithm used to generate wave amplitudes given various parameters such as water depth, wind direction and speed.

The wind direction in degrees, with zero being along the X-axis.

The wind speed. Higher wind speeds create larger low-frequency waves and generally increase the dynamic range of the ocean spectrum.

The amount that the waves in the Phillips spectrum will align with the wind direction. As this parameter increases, waves that don’t align with the wind will be dampened.

The amount that waves in the Phillips spectrum will move in the same direction as the wind. When this value is low, the ocean will contain waves that are aligned with the wind, but moving in the opposite direction from the wind. Increasing this value will dampen those waves, leaving only those moving in the same direction.

Enhances the directionality of the waves in the TMA spectrum when set to values greater than zero. Negative values remove directionality and adds more waves in directions opposing the wind.

The distance in kilometers that the wind has been acting upon the ocean in the TMA spectrum, often thought of as the distance from shore.

The amount of sharp cusps the waves will have. Increasing this value too high can cause the waves to become too peaked and invert on themselves.

The ocean spectrum is shaped by reducing the amplitude of waves traveling in unwanted directions, which causes the overall height of the ocean to change as the waves are shaped. Normalizing maintains consistent wave heights as the various shaping parameters are modified. When this parameter is enabled the only shaping parameters that affect wave height are the wind Speed, which affects dynamic range, and amplitude Scale, which affects overall amplitude gain.

The reference wind used for normalizing the overall wave height. Should only be changed if the units of your scene are changing.

A constant gain by which to scale all the wave amplitudes.

The random distribution used to scale the wave amplitudes after the shaping parameters have been applied.

Dampen any waves with a smaller wavelength than this value, which can help with aliasing of very small waves at very high resolution.

Dampen any waves that would exist in an ocean spectrum higher than this resolution. For example if set to 8, this spectrum will have no higher frequencies than a spectrum of resolution 8. This parameter can be useful along with Filter Below Resolution when layering spectra and applying masks and noise to only the highest frequencies.

Dampen any waves that would exist only in an ocean spectrum lower than this resolution. For example if set to 8, this spectrum will contain only frequencies higher than a spectrum of resolution 8. This parameter can be useful along with Filter Above Resolution when layering spectra and applying masks and noise to only the highest frequencies.

Modify the output wave amplitudes with a ramp.

The resolution of the highest wave frequency represented on the Amplitude Ramp. Having this fixed allows a ramp to always affect the same frequencies even as the overall resolution of the ocean is changed. Alternatively this can be channel-referenced to the Resolution parameter.

A ramp applied to the amplitudes of the wave frequencies in the spectrum, with low frequency on the left and high frequency on the right, up to the highest frequency specified by Max Remap Resolution.

Controls whether a value of 1 in the volume mask will Suppress or Contribute to the ocean at that point.

Multiply noise into the mask. Note that the noise will apply even if no volume mask is input into this spectrum.

The approximate world-space size of the noise patterns along and across the specified Direction.

The roughness of the noise pattern.

The number of octaves of turbulence to add to the noise.

The orientation of the noise pattern and the direction it will move if given a Speed.

The speed at which the noise pattern will move, which can be useful to emulate wind-over-water effects without animated parameters.

The rate at which the noise patterns evolve over time, which can be useful to emulate wind-over-water effects without animated parameters.

The offset applied to the noise.

The input range of the noise that will be mapped to the Output Range. Decreasing these values creates harder, more distinct regions in the noise pattern; increasing it softens the transitions between noise regions.

The output range of the noise, limited to a 0-1 range. Increasing the minimum value will cause less noise damping in the waves. Decreasing the higher range will reduce the overall amplitude of the waves.

This spectrum will get its noise parameter values from the other specified Ocean Spectrum node, then use the complement of the evaluated noise. If both spectra are evaluated as merged ocean layers, the resulting ocean will be a blend of the two spectra with the noise patterns controlling each spectrum’s contribution.

The radius of the instanced wave area. This parameter overwrites any incoming pscale attribute on the input points.

The amount of randomness in the instanced ocean radius.

The amount to rotate the instanced waves. This parameter overwrites any incoming rot attribute on the input points.

The amount of randomness in the instanced ocean orientation.

An amplitude scaling for the instanced waves.

The amount of randomness in the instanced ocean amplitude.

The amount to offset within the ocean grid before instancing waves. This value is in the 0-1 range, with 1 being the entire Grid Scale range of the ocean grid.

The amount of randomness in the instanced ocean offset.

If set to a non-zero value, a single waveform of this wavelength will be instanced onto the point. Several of these can be combined in a line or curve to form a wavefront. The velocities for these waveforms will be derived from the input point’s velocity, if any.

Controls the choppiness of the waveform instanced when using the Wavelength parameter.

Controls how quickly the ocean waves falloff as they approach the Radius of the instanced area.

A random seed for the Wave Instancing parameters.

Controls how the input points are looked up when instancing waves. If they are determined to be close to a flat plane with either the Auto Detect or 2D Best Fit Plane settings, then all point lookups will be done in 2D space and give accurate velocities at depths below the surface. However, for input points that are widely dispersed in 3D space, this projection can lead to overlapping wave instances, and the 3D setting can be used to override Auto Detect, at the expense of inaccurate wave velocities at depth.

The color ramp used for visualization.

The resolution exponent of the grid used for visualization.

The minimum and maximum amplitude values to visualize in the spectrum.