OctaneRender® for Blender

The Directional light functions are an infinitely distance light source and creates an effect much like the sun illuminating on the surface of the earth. Rotation is the only transform value that will affect this light type since it originates from an infinite location (figure 1). The Directional light parameters can be access from the Shader Editor (Figure 2) or the Light Properties Panel (Figure 3).

Figure 1: Directional light Example

Figure 2: The Directional light Parameters in the Shader Editor

Figure 3: The Light Properties panel

Directional Light Parameters

Accessible in Shader Editor and Light Properties

Emission - Emission configuration for this light. 

• Texture Emission - The default emission when you setup an Octane Area Light. For a list of its parameters, refer to the Texture Emission page.

Light Transform - Directional light's transform. 

• Object Data - Provides Transform, Rotation, and Geometry data on the Object or Collection. For a list of its parameters, refer to the Object Data page.

Light Sample Spread Angle - Light's sampling spread angle [degrees]. The larger the value is, the bigger the light source is, hence producing softer shadows.

Use in Post Volume - Enable or disable this directional light in post volume rendering.