Octane Standalone Documentation

The Sphere Light is essentially a geometric sphere with a Diffuse material that has the Emission properties activated (Figure 1). 

Figure 1: The Sphere Light and it's associated parameters

Sphere Light Parameters

Sphere Radius - Determines the size of the light source. The larger the source, the softer the shadows.

Material - The material parameters consist of basic Diffuse material parameters. The only parameters in this category that will affect the light source can be found in the Emission rollout. By default a Texture Emission node is connected as the emission type. A Black Body can be used as well. Please see their respective topics for parameter details.

Object Layer - Provides standard Object Layer parameters to control render visibility and light pass options.

Transformation - Provides standard transformation controls for placement and orientation of the light source.