This page provides details on the Environment settings in V-Ray for Unreal.
Overview
The VRaySettingsEnvironment blueprint is where you can specify a color and a texture map to be used for background in the viewport and also a color and a texture map to be used during GI and reflection/refraction calculations at render time.
UI Path
The VRaySettingsEnvironment Blueprint Actor is accessible through Modes > V-Ray Assets > VRaySettingsEnvironment. Select the Blueprint and drag and drop it in the level.
||Modes Tab|| > V-Ray Assets > VRaySettingsEnvironment
VRay Environment Settings
Override Background - Turns on and off the background override.
Background Color - Specifies the environment background color.
Background Texture - Lets you choose an environment background texture that will be visible in the viewport. Note that if present, the texture overrides the specified Background Color.
Override GI - Turns on and off the GI override (No effect in viewport).
GI Color - Specifies the environment (skylight) color (No effect in viewport).
GI Texture - Lets you choose a GI environment texture. Note that if present, the texture overrides the specified GI (No effect in viewport).
Override Reflection - Turns on and off the reflection override (No effect in viewport).
Reflection Color - Specifies the environment color for reflections (No effect in viewport).
Reflection Texture - Lets you choose an environment texture for reflections. Note that if present, the texture overrides the specified Reflection Color (No effect in viewport).
Override Refraction - Turns on and off the refraction override (No effect in viewport).
Refraction Color - Specifies the environment color for refractions (No effect in viewport).
Refraction Texture - Lets you choose an environment texture for refractions. Note that if present, the texture overrides the specified Refraction Color (No effect in viewport).
Only the input for Background Color and Background Texture will be represented in the viewport. All other inputs will be applied at render time.
Misc
Preview Scale - Specifies the sorting priority of the SkySphere in the viewport. Values smaller than 1 will make the SkySphere render in front of other Actors that use Environment Spheres (e.g. VRayLightDome)
