Properties for Sky Lights

This page describes the configuration settings exposed for sky lights in the eRnsT interface.

setting	description	savable?
Transform	The properties in the Transform group define the position, orientation and scaling of the light source along each axis. These values are expressed in world space.	Yes
Enable	Determines whether or not the light is active. You can use this setting to disable a light temporarily if you want to test the effect of removing the light from the scene without permanently deleting it.	No
Color	Determines the color of the light radiated from the light source. The value you set here is also affected by the Intensity setting.	Yes
Intensity	Determines the intensity of the light radiated from the light source. The default value of 1 produces light at the full value of the Color setting. Lower values dampen the strength of the color proportionately, and higher values push the color toward white. A value of 0 effectively disables the light source.	Yes
Direct Light Scale	Applies a scaling factor to the strength of the direct light rays emanating from the light source. You can use this setting to tweak the strength of the direct light relative to the indirect light.	Yes
Indirect Light Scale	Applies a scaling factor to the strength of the indirect light rays emanating from the light source. You can use this setting to tweak the strength of the indirect light relative to the direct light.	Yes
Bake Direct Light	Determines whether or not the direct light from this source is baked to the lightmap. If you set this value to false, the direct light component is rendered in the 3D view using real-time shadow mapping. Indirect light from the source is always baked to the lightmap.	No

Light Stats

The settings in the Light Stats group determine when the light source contributes to the overall lighting. These values are interpreted slightly differently for sky lights than for other types of light sources, since sky lights provide an environment around the scene.

setting	description	savable?
Visible for Eye	Determines whether or not the sky light is visible in the background when the camera is inside the extents of the sky light.	Yes
Visible for Refl	Determines whether or not the sky light is visible in reflections.	Yes
Visible for Refr	Determines whether or not the sky light is visible in refractions.	Yes
Visible for GI	Determines whether or not the sky light contributes to the indirect light in the scene.	Yes

Shadows

The settings in the Shadows group control whether or not the light casts shadows, and how those shadows are calculated.

setting	description	savable?
Cast Shadows	Determines whether or not the direct light from this source casts shadows when it hits physical objects in the scene.	Yes

Sky

The settings in the Sky group set properties specific to sky lights.

setting	description	savable?
Texture	Displays the file name of the texture set up for this light source, if any. This value is read-only; textures can only be assigned to sky lights using the Beast API.	No
Texture Filter	Determines the size of the texture filter for this light. You can tweak this setting to control the amount of blurring applied to the texture, which can reduce noise in the lightmaps.	Yes
Light Volume	Specifies the spatial volume of the light source. Infinite floods the entire scene with light. Box or Sphere limits the light generated by this source to a volume whose extents are determined by the scaling values set for this light source under the Transform group.	Yes