OctaneRender® for Unity® is capable of rendering the Unity Point, Spot, and Area light sources. OctaneRender also supports the Unity Directional light, but only as the Sun parameter in a Daylight environment (Figure 1).
Figure 1: Adding Unity lights to a scene rendered with OctaneRender
Although you can use the Unity light parameters to alter the light source, using the parameters in the PBR Unity Light Component (Script) generates more predictable results. You can find details on using this component in the PBR Unity Light Component (Script) section.