Watervolume Shader

Overview

In CRYENGINE 3.5 and beyond, the Watervolume Shader is a dedicated shader designed to be used just on Water Volume objects. In earlier versions of CRYENGINE it was part of the main Water Shader as a shader parameter.

Shader Params

A few notes about the Watervolume shader:

The Detail normals texture is not an external texture, rather a texture generated by the engine, through code.
The Decal options will not appear in the Shader Params unless a texture is put into the Decal slot to activate it. The Decal Bumpmap slot will also appear after this.
Flow map textures go in the Detail texture slot.

Parameter	Description	Shader Gen Requirement
Decal falloff	Controls the falloff amount for decal texture.	Decal texture slot use
Decal strength	Set the strength of the decal texture.	Decal texture slot use
Decal tiling	Tiling of the decal layer.	Decal texture slot use
Detail normals scale	Scale the detail bump normals intensity.	Default
Detail tiling	Set detail bump tilling.	Default
Env projection scale	Controls the projection scale, or the tiling, of the specified environment map.	Default
Env reflection amount	Controls the reflection amount of of the environment map. Can be offset with Specular Color.	Default
Flow map scale	Control the scale, or tiling, of the flow map texture.	Water flow map
Flow offset strength	Strength of flow animation offset map.	Water flow map
Flow offset tiling	Tiling scale for flow animation offset map.	Water flow map
Flow speed	Specify the speed of the flow effect.	Water flow
Foam amount	Control the amount of foam placed on the water surface.	Foam
Foam soft intersection	Controls how the foam behaves from contact areas. Foam forms around intersecting objects and the terrain, once it gets close to the surface.	Foam
Foam tiling	Set the tiling amount of the foam texture. Foam texture is located in `EngineAssets/Shading/WaterFoam.tif`	Foam
Gloss bias		Specular texture slot use
Gloss scale		Specular texture slot use
Gloss tiling	Controls the tiling amount for the Specular texture.	Specular texture slot use
Normals scale	Controls the scale of the normals. Not to be confused with Detail normals.	Default
Rain ripples tiling	Set the tiling amount for the rain ripples texture.	Default
Realtime reflection amount	Control the reflection amount for the Realtime Reflection.	Default
Soft intersection factor	Similar to the Foam soft intersection but for the base water surface.	Default
Tiling	Changes the amount of texture map tilling on the water surface.	Default
Vertex wave scale	Strength of vertex displaced wave animation.	Default

Shader Gen Params

Parameter	Description
Realtime Reflection	Approximate realtime reflections.
Water flow	Enable water to flow along geometry UVs.
Water flow map	Enable water flow along a flow map.
Sun specular	Activate for water sunshine.
Debug flow map	Enable visualizing flow map.
Foam	Enables foam.

Examples

The following images contain a base Watervolume material along with an environment map.

Most features are "moving" features aren't can't effectively be showcased through images but some tweaking and experiments should yield noticeable differences fairly easily.