What are environment lighting overrides?

In this software, the lighting of a surface is determined in the following ways:

• Environment image-based lighting (IBL), as defined by the particular environment.
• Environment lights and the shadows they cause (see Adjust environment light and shadows).
• Ambient shadowing (see Apply ambient shadows).
• Additional light objects (see Add lighting.)

The lighting parameters provided in the material properties determine if a material interacts with the environment lights and/or image-based lighting. They do not influence ambient shadowing or the illumination from supplemental lights in the scene.

You can override the lighting for color (diffuse surfaces) and for highlights (specular surfaces).