V-Ray lights are designed specifically to work with V-Ray and optimize its features.
Types of Lights
You can create these lights using the Lights Toolbar:
Depending on the scene and the effect you are trying to create with light, you might elect to use only one type of light, or any combination of lights.
Rhino and V-Ray Lights have all their common settings synced together. Adjusting any of the Rhino Light properties will update them in the V-Ray Asset Editor's Light list and vice versa.
Three additional buttons are added to the Rhino Light properties for enhanced light instancing control.
Edit in V-Ray Asset Editor – Opens the Asset Editor and lets you adjust the settings of the currently selected light.
Select Instances – Selects all instanced lights.
Make Unique – The selected light instance is made unique.
Each of the V-Ray lights types can be turned off/on by clicking on their respective icon. The icons have an enabled/disabled state.
The VRay Omni Light is a V-Ray specific light that can be used to create physically accurate lights that casts rays in all directions from a single source. For more information, see Omni Light or Point Light | LightOmni.
The V-Ray Rectangle light or an "area light" is a planar light source with the shape of a rectangle or circular disk. Rectangle lights are useful for simulating man-made light sources in an interior environment, such as lamps. A rectangle light can have any one of two different shapes: plane or disc. For more information, see Rectangle Light | LightRectangle.
The V-Ray Spot Light is a V-Ray specific light source plugin that can be used to create a physically accurate light that directs a narrow beam of light with falloff. For more information, see V-Ray Spot Light | LightSpot.
A dome light (also considered an area light) creates light within a dome or spherical shape to create a traditional global illumination setup. This Light is frequently used to load HDRI environment images. For more information, see V-Ray Dome Light | LightDome.
The Sphere Light is a VRay Light object in the shape of a sphere, casting light outward in all directions. For more information, see V-Ray Sphere Light | LightSphere.
IES lights are designed to simulate a light source's distribution pattern exactly as they behave in real life by loading and using an IES (Illumination Engineering Society) file. An IES profile contains details about the light's behavior, such as how the light passes through fresnel lenses, its intensity, and its and falloff. For more information, see V-Ray IES Light | LightIES.
The Mesh Light can create light sources that have volume and shape defined by geometry in the scene, without the need to use self illuminated objects and global illumination. For more information, see Mesh Light | LightMesh.
A Sun light is a spherical light source placed at a specific location which simulates the sun in the sky. A Sun light has some unique qualities:
For more information, see Sun and Sky System | VRaySun.
The V-Ray Directional Light can create light sources that cast parallel light rays in a single direction. For more information, see Directional Light or Direct Light | MayaLightDirect.