Dustin uses Octane to show lighting details on a model in Cinema 4D, explaining how lighting works, how to adjust lighting, adjust color temperatures of lights and make different modifiers for the lighting.
Dustin shows how HDRI inside of Octane can be used to light a model in a way that takes the environment the model is into account. With HDRI colors and reflections (material dependent) can be seen inside of the model.
Dustin shows the daylight system feature inside of Octane in Cinema 4D to show how the lighting of the model can be impacted by its environment in lighting and shading.
Dustin shows how each light bulb actually has a different pattern to their light fallout and shape. Octane has accounted for this by taking IES profiles from manufacturers and adding them to the program.