Adobe atmosphere builder 1 Manual De Usuario
53
Adding Lighting
About lighting
When light rays strike an object in the real world, the object’s surface reflects them. This
reflected light is what enables us to see objects. The light an object reflects goes on to
illuminate other objects. This effect is known as radiosity.
reflected light is what enables us to see objects. The light an object reflects goes on to
illuminate other objects. This effect is known as radiosity.
Atmosphere Builder’s lighting environment is based on the real-world principle of
radiosity. All surfaces in an Atmosphere world are either luminous (giving off light) or lit
(receiving light). How much light a surface receives is based on all of the distributed light
in the environment. With each lighting pass, the light reflected by surfaces is added to the
lighting environment. As a result, lighting gets more subtle every time you apply it to a
world.
radiosity. All surfaces in an Atmosphere world are either luminous (giving off light) or lit
(receiving light). How much light a surface receives is based on all of the distributed light
in the environment. With each lighting pass, the light reflected by surfaces is added to the
lighting environment. As a result, lighting gets more subtle every time you apply it to a
world.
Without realistic lighting your world will look flat and dull; with lighting your world gains
depth and dimension.
depth and dimension.
Creating luminous surfaces
The first step in lighting a world is to create luminous surfaces. A luminous surface casts
light onto the non-luminous surfaces around it.
light onto the non-luminous surfaces around it.
atmosphere.book Page 53 Wednesday, March 21, 2001 6:14 PM