9.5.2

942 • CHAPTER 18
THE SHADERS • 943
Environment page
Image
Utilizes a standard texture (a bitmap or a channel shader) to be used for the environment sample.
Intensity
Scales the Environment Color before it is mixed with the Glare and Edge Color result to create the
nal environment color sample that will be used to attenuate the environment sample provided by
the Environment texture. Appropriate values are 0% - 200%.
Glare
Scales the Edge Color before it is mixed with the Intensity and Environment Color result to create the
nal environment color sample that will be used to attenuate the reection sample provided by the
Environment texture. Appropriate values are 0% - 200%.
Falloff
Mixes the results of the Environment Color • Intensity and Edge Color • Glare. Smaller values provide
for more Environment Color, while larger values provide more Edge Color. The appropriate range is
0% - 500%.
Utilize Anisotropic Scratches
Tells the group to become active allowing the shader to take multiple samples of the environment
Texture along the axis of the scratch direction dened by the Anisotrophy group parameters.