Distance below the surface to the volume's bottom, in local inches. Changing depth preserves the water level and finite surface size.

Detail-clock offset, preserving phase across material speed edits, swaps, cloning and serialization.

The detail speed Sandbox.WaterBody.DetailTimeOffset was last corrected for; negative before the first.

Emit splashes when objects enter or players move across the surface.

How the water looks: colour and opacity from above and below, roughness, detail normals, refraction and its fog, and the caustics it projects below. A material using the Water shader.

Extend the surface to the horizon without a boundary. The visible patch follows the viewing camera while the water plane and texture coordinates remain fixed in the world.

Tint underwater fog and the vignette with Sandbox.WaterBody.UnderwaterFogColor instead of the material's water fog colour, so the view below the surface can differ from the view down through it.

What the water reflects where the screen-space or planar reflection has nothing, and everywhere when screen-space reflections are off in the settings.

Cubemap reflected by the Custom Cubemap environment. Use a filtered HDR cubemap with roughness mipmaps. Missing or invalid textures fall back to scene probes.

How the water reflects the scene. Either way the environment fills whatever the reflection can't see.

Width and length of the surface in local inches.

Apply this body's underwater fog, colour grading, vignette and blur beneath the rendered surface. Each camera selects its containing water body independently.

Blur of the view below the surface. Zero removes it.

How far the view below the surface is desaturated, darkened and given contrast. Zero removes the grade.

Animated screen distortion while submerged, independent of surface refraction, clarity and fog. Zero leaves the underwater view undistorted.

Screen distortion animation speed, independent of surface waves. Zero uses a stationary pattern. Changes preserve the current phase, including when stopping and resuming.

Distortion-clock offset, preserving phase across speed edits, cloning and serialization.

Distance beyond the fog start that removes approximately 63 percent of background light, in world inches. Smaller values give denser fog, independently of the screen effects and surface opacity.

Tint of underwater fog and the vignette, when Sandbox.WaterBody.OverrideUnderwaterFogColor is on.

Maximum fog coverage. Zero removes fog coverage without disabling the other underwater effects.

Clear distance before underwater fog starts, in world inches.

Colour of suspended sediment, independent of the surface and fog colours.

Density of shader-generated suspended sediment. Zero skips sediment rendering.

Speed of each speck's independent wandering motion. Zero freezes the world-anchored field. Changing speed preserves the current positions, including when stopping and resuming.

Minimum and maximum diameters in world inches. Each speck keeps a stable random size in this range.

Sediment-clock offset in seconds. Speed edits update it to preserve the current particle positions. Serialized with the body so copies and saved frozen fields retain their phase.

Darkening toward the screen's edges in the fog colour. Zero removes it.

A mesh on this object sets the water's extent: its top is the surface, its footprint the size and, unless it is flat, its height the depth. Works with an editable mesh, or a mesh tied to the object in Hammer. In game the mesh is switched off, so it neither draws nor collides.

The mesh also sets the depth, which a flat mesh leaves to Sandbox.WaterBody.Depth.

Direction of the dominant swell, in degrees from local +X toward +Y. Shorter bands spread around this heading.

How far the waves rise above and fall below the mean surface, in inches. Zero disables wave deformation.

Wavelength of the longest band in inches. The others are shorter multiples of it.

Enable geometric surface waves without changing their saved settings.

Speed multiplier for swell propagation. One is normal speed; zero stops propagation. Changes preserve the current wave phase, including when stopping and resuming. Surface Detail has its own animation controls.

Sharpens crests and widens troughs independently of wave height. Zero gives rounded waves; one uses the full shared compression budget for the strongest chop without folding.

Propagation-clock offset in seconds. Speed changes update it to preserve phase. Serialized with the water so clones and newly joined clients keep the same surface.

Sideways scale of crest variation in inches, across WaveDirection. Smaller values give narrower, more frequent peaks along each crest; larger values give broader ridges.

Whether a world point lies inside the enabled fluid volume, including its surface and bottom.

Create the upright bullet splash and its sound at this surface. The returned effect is local and destroys itself after playback.

Create a small, medium or large splash, projected onto this surface. Sizes up to 32 use the small prefab; sizes up to 64 use medium. The returned effect is local and destroys itself after its particles and sound finish.

Convert surface-relative coordinates in world inches to a world position.

Height of the animated surface above the mean plane at surface XY in world inches.

Height and world normal at displaced surface XY, including Gerstner crest compression. Matches the unfiltered wave surface.

Convert a world position to surface-relative coordinates measured in world inches. Positive Z lies above the water; X and Y follow the body's rotation without its scale.

Tag on generated surfaces, allowing cameras to exclude water.

Find an active fluid volume containing a world point. Finite volumes take precedence over infinite water; overlapping volumes of the same kind use scene order.

Find the nearest active water surface whose footprint contains a world position. Finite surfaces take precedence over infinite surfaces at equal distances. Positions below an enabled volume's bottom are excluded.