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title: "Sun Light"
canonical: "https://documentation.chaos.com/space/ARENA/124523713/Sun%20Light"
format: markdown
---
This page offers information about the Sun Light in Chaos Vantage. Overview The Sun Light is the representation of the V-Ray Sun in Chaos Vantage. Listed parameters can be filtered by using the  Compact ,  Basic , and  Advanced  buttons. You can use the right mouse button to reset the numeric values of the parameters to their defaults. Sun Light Parameters Enabled  – Turns on and off the sun light. Color  – Changes the color of the sun and depends on the  Color mode  parameter. Intensity  – Specifies the intensity of the sun and can be used to reduce the default brightness.  Sun size mult.  – Controls the visible size of the sun disc. This value can be used to control the softness of shadows cast by objects. Lower values produce sharp shadows, while large values produce softer shadows.  Color mode  – Affects the way the color in the  Color  parameter affects the color of the sun. Filter  – Shifts the hue of the sun towards the color specified in the Color parameter.   Direct  – Sets the color of the sun to match the color in the Color parameter. In this case, the intensity of the light does not depend on the V-Ray Sun’s position in the sky and is controlled through the  Intensity  parameter.   Override  – Sets the color of the sun to match the color in the Color parameter, but the intensity of the light still depends on the sun's position in the sky. Sun position  – Specifies the control mode for the sun's position in the sky. Manual  – Specifies a manual control of the sun position using the  Rotate  ( ) transform tool. Altitude/Azimuth  – Specifies the use of  Altitude  and  Azimuth  values to control the sun's position. Geolocation  – Specifies the use of location coordinates, date, and time of day to control the sun position. Animated Geolocation  – Specifies the use of location coordinates, date, and time of day to control the sun position that can be animated in the Sun track in the animation editor. Manual mode Altitude/Azimuth Mode parameters: Altitude  – Sets the altitude position (in degrees) of the sun in the sky. Azimuth  – Sets the azimuth position (in degrees) of the sun in the sky. Altitude/Azimuth mode Geolocation Mode parameters: North Offset  – Sets the altitude position (in degrees) of the sun in the sky. Latitude  – Defines the latitude position of the scene over the Earth globe. Longitude  – Defines the longitude position of the scene over the Earth globe. Day / Month / Year  – Specifies the day/month/year for which to compute the sun position. Hours / Minutes  – Specifies the hours/minutes for which to compute the sun position. Time zone  – Specifies the current time zone of the scene. The  Time Zone  is not set automatically based on  latitude and longitude  values. Daylight Saving Time  – When enabled, it compensates for Daylight Saving Time (DST). Geolocation mode Animated Geolocation Mode parameters: Set start keyframe  – Sets the current   Day / Month / Year  and  Hours / Minutes  values at the start of the sun animation track. Set end keyframe  – Sets the current  Day / Month / Year  and  Hours / Minutes  values at the end of the sun animation track. North Offset  – Sets the altitude position (in degrees) of the sun in the sky. Latitude  – Defines the latitude position of the scene over the Earth’s globe. Longitude  – Defines the longitude position of the scene over the Earth globe. Day / Month / Year  – Specifies the day/month/year for which to compute the sun position. Hours / Minutes  – Specifies the hours/minutes for which to compute the sun position. Time zone  – Specifies the current time zone of the scene. The  Time Zone  is not set automatically based on  latitude and longitude  values. Daylight Saving Time  – When enabled, it compensates for Daylight Saving Time (DST). Note that only  Day / Month / Year  and  Hours / Minutes  can be animated in the Sun animation track. Animated Geolocation mode Invisible  – When enabled, makes the sun invisible to both the camera and reflections. This is useful  for preventing bright speckles on glossy surfaces where a ray with a  low probability hits the extremely bright sun disk. Shadows  – When enabled (the default), the light casts shadows. Turn this option off to disable shadow casting for the light. The  value  moves the shadow toward or away from the shadow-casting object(s). Higher values move the shadow toward the object(s), while lower values move it away from the object (s). If this value is too extreme, shadows can "leak" through places they shouldn't or "detach" from an object. Other effects from extreme values include Moire patterns, out-of-place dark areas on surfaces, and shadows not appearing at all in the rendering. Affect diffuse  – Determines whether the light affects the diffuse portion of the materials. The value controls the light's contribution to the diffuse portion of the materials. Affect specular  – Determines whether the light affects the specular portion of the materials. The value controls the light's contribution to specular reflections.