Chapter 6. Image-Based Lighting
Paul E. Debevec
Image-based lighting (IBL) is the process of illuminating scenes and objects—be they real or synthetic—with images of light from the real world. IBL evolved from the techniques known as environment mapping and reflection mapping [3, 20], in which panoramic images are used as texture maps on computer generated (CG) models to show shiny objects reflecting real and synthetic environments. When used effectively, image-based lighting can produce highly realistic renderings of people, objects, and environments, and it can be used to convincingly integrate computer generated objects into real-world scenes.
The basic steps in image-based lighting are
1. | Capturing real-world illumination as an omnidirectional, ... |
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