Light field: Difference between revisions
Xinreality (talk | contribs) No edit summary |
Xinreality (talk | contribs) No edit summary |
||
| Line 17: | Line 17: | ||
===Simplified Light Fields=== | ===Simplified Light Fields=== | ||
For static scenes under constant illumination, the time (t) and wavelength (λ, often simplified to [[RGB]] channels) dependencies can often be dropped. Furthermore, due to the constancy of radiance along a ray in free space, the 3D spatial component can be reduced. | For static scenes under constant illumination, the time (t) and wavelength (λ, often simplified to [[RGB]] channels) dependencies can often be dropped. Furthermore, due to the constancy of radiance along a ray in free space, the 3D spatial component can be reduced. | ||
* '''5D Light Field:''' Often represented as L = L(x, y, z, θ, φ). | * '''5D Light Field:''' Often represented as L = L(x, y, z, θ, φ). | ||
* '''4D Light Field:''' The most common simplification, often called the [[photic field]] or [[lumigraph]] in regions free of occluders.<ref name="WikiLF"/> It captures radiance along rays without redundant data.<ref name="LevoyHanrahan1996"/><ref name="Gortler1996"/> | * '''4D Light Field:''' The most common simplification, often called the [[photic field]] or [[lumigraph]] in regions free of occluders.<ref name="WikiLF"/> It captures radiance along rays without redundant data.<ref name="LevoyHanrahan1996"/><ref name="Gortler1996"/> | ||