Lighting in Unity
Lighting in Unity tutorials Verbatim extracts from https://learn.unity.com/tutorial/introduction-to-lighting-and-rendering#5c7f8528edbc2a002053b528 Global illumination , or ‘GI’, is a term used to describe a range of techniques and mathematical models which attempt to simulate the complex behaviour of light as it bounces and interacts with the world. Simulating global illumination accurately is challenging and can be computationally expensive. Because of this, games use a range of approaches to handle these calculations beforehand, rather than during gameplay Realtime Lighting By default, lights in Unity - directional, spot and point, are realtime. This means that they contribute direct light to the scene and update every frame. As lights and GameObjects are moved within the scene, lighting will be updated immediately. This can be observed in both the scene and game views. Baked GI Lighting When 'baking’ a ‘lightmap', the effects of light on static objects in the scene are...