This page provides information on V-Ray lights in Solaris.
Create Lights
Solaris allows you to create and edit lights, and then export them to USD.
V-Ray lights settings are located as separate V-Ray tabs in the Solaris lights LOP nodes. The settings are similar to those of the various V-Ray lights nodes in obj network. The V-Ray lights settings are available when you create Light LOP from ||state|| > Light > Light.
Note that V-Ray Dome, V-Ray Sun, and V-Ray Direct lights are available in separate Dome Light and Distant Light LOP nodes.
UI paths:
||stage|| > Light > Light > V-Ray tab
||stage|| > Light > Dome Light > V-Ray tab (for V-Ray Dome Light)
||stage|| > Light > Distant Light > V-Ray tab (for V-Ray Sun and V-Ray Direct light)
Create and Set Attributes
The parameters that correspond to a USD attribute have a pop-up menu that controls how the LOP node authors the attribute:
Set or Create – Sets the attribute to a given value, regardless of whether the attribute previously existed or not.
Set if Exists – Sets an attribute to the given value only if it previously existed. Use this option to make sure the attribute is set on primitives of the correct type.
Block – Makes the attribute appear to not exist so it takes on its default value.
Do Nothing – Does not affect the attribute, i.e. does not create or change the attribute in any way.
Types of Lights
Light LOP node
Omni light
The V-Ray Omni Light parameters are available through the Light node. They are grouped into Basic and Advanced parameters.
Rectangle/Disk
The V-Ray Rectangle/Disk Light parameters are available through the Light node. They are grouped into Basic and Advanced parameters.
Sphere
The V-Ray Sphere Light parameters are available through the Light node. They are grouped into Basic and Advanced parameters.
Distant LOP node
Direct light
The V-Ray Directional Light parameters are available through the Distance Light node. They are also available in the Light node when primitive type is set to Distant. They are grouped into Basic and Advanced parameters.
V-Ray Sun
The V-Ray Sun Light parameters are available through the Distance Light node. They are also available in the Light node when primitive type is set to Distant. They are grouped into Basic and Advanced parameters.
LPE and Environment tabs are also available for both light types.
Dome LOP node
Dome light
The V-Ray Dome parameters are available through the Dome Light node. They are grouped into Basic and Advanced parameters.
Light Mixer
The Light Mixer node provides an easy way to view and edit multiple lights’ USD properties such as intensity, exposure, and color. It also allows you to solo out and deactivate your lights.
Simply drag one or more lights from the tree on the left into the space on the right.
Light Linker
The Light Linker node provides finer control over what prims are lit by each light based on rules. It enables you to create relationships (rules) between the individual prims and lights.
To create rules you can do one of the following:
- Simply drag and drop a light from the tree on the left into the Rules section, then drag and drop a geometry from the tree on the right on/off section for this particular light.
- Alternatively, drag and drop a geometry from the tree on the right into the Rules section, and then drag and drop one or more lights into the on/off section for this particular geometry.
