Baked lighting is a Real-Time Engine term in filmmaking. In virtual production, the nuances of this term take on special meaning. Here, we break down the definition to give you a starting point.
View the full Virtual Production Glossary here »
Basic Definition:
What is Baked lighting in virtual production?
An asset with highlights and shadows baked into its surface texture which does not directly respond to lighting changes; useful for increasing real-time render performance. See also interactive lighting.
Baked lighting is a technique used in film and television production to speed up the rendering process by using pre-baked assets that have their shadows and highlights already built into their surface textures. It allows filmmakers to create stunningly realistic visuals without having to wait for render times, as all of the lighting information has been stored ahead of time. This type of lighting can be divided into two categories: static and dynamic baked lighting.
Static baked lighting is when a light source never moves or changes throughout the course of shooting, meaning that the same shadow and highlight values will stay constant. Dynamic baked lighting, however, involves animating the lights so they move within predetermined parameters; this provides greater control over how shadows are cast across a scene.
In virtual production, these principles remain largely the same but can offer filmmakers even more options when working with digital sets. For instance, interactive lighting systems allow them to quickly adjust light sources on the fly, giving them a wider range of creative possibilities while still being able to take advantage of the quick render times provided by baked lighting. Additionally, since digital environments tend to have fewer physical restrictions than practical sets, filmmakers can easily incorporate effects such as lens flares and volumetric lighting that would not be possible in real life.
Overall, baked lighting is an invaluable tool for any filmmaker looking to reduce their render times without sacrificing visual quality. By utilizing both static and dynamic techniques, filmmakers can work faster while achieving impressive results that rival those created by conventional photography.