What's the theory behind the Lighting an Game Environment in a Physically Based Renderer?
As far my research, lighting an scene is done with different Rules and Different Ways of Lighting an Scene depending upon the scene.
For an Interior scene - Omni Lights, Area Lights, point Lights and Spot Lights with baking is used to give proper amount of illumination.
whereas for an Outdoor Scene - Directional Lights, Area Lights, Point Lights are used to illuminate the scene with baking Lightmaps.
Usually to Light Individual Objects, 3 point Lighting is used and colors signify the Mood of the Scene.
But, the 3 point lighting is unfavorable for Game Environment, So, what's the Good way to start and what are the main objectives in Lighting an Scene?
How Lighting an Scene Contributes to the mood of the scene? like here -