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Car Paint Material/Shader (mental ray) 1577
Inter face
Diffuse colo r in g rollout
Ambient/Ex tra light—The ambient light
component.
Note: This parameter is treated differently from
the ambient/ambience parameter pair of many
other base shaders in that it is influenced by the
additional Diffuse Coloring parameters, and hence
represents incoming lig ht, rather than the object’s
"ambient color."
Base color—Thebasediffusecolorofthematerial.
Edge color—The color seen at glancing angles (that
is, edges), which tends to appear much darker. For
deep me tallic paints seen on sports cars it tends
to be almost black.
Edge bias—Thefalloffrateofthecolortowards
the edge. Higher values ma ke the ed ge region
narrower; lower values make it wider . The useful
range is 0.0 to approximately 10.0, where the value
0.0 turns the effect off.
Color shift due to view angle, shifting bet ween a red base
color and a blue edge color (atypical colors chosen for
demonstration purposes) with varying Edge Bias values
Light facing color—The color of the area facing the
light source.
Light facing color bias—The falloff rate of the color
towards the light. Higher values make the colored
region facing the l ight smaller/narrower ; lower
values make it larger/wider. The usef ul range is 0.0
to approximately 10.0, where the value 0.0 turns
the effect off.
Color shift due to view angle, shif ting between a red base
color and a green light facing color (atypical colors chosen for
demonstration purposes) with varying Light Facing Color Bias
values
Diffuse weight—Controls the overall level of the
Diffuse Coloring parameters.
Diffuse bias—Modifies the falloff of the diff u se
shading. Higher values push the diffuse peak
towards the lig ht s ource, and lower values
flatten the diffuse peak. The useful range is
approximately 0.5 to 2.0, where 1.0 represents
standard Lambertian shading.
Flakes rollout
Fla ke color —The color (reflectivity) of the flakes,
which is generally white.
Fla ke wei ght —Ascalarmultiplierfortheflake
color.
Flak e reflections (ray tr aced)—The amount of
ray-traced reflection in the flakes, which a llows