9

DGS Material Shader (mental ray) 1717
encounter multiple return values in shaders provided
with other shader libraries or custom shader code.
DGS M ater ia l Sha der (mental r ay)
Material Editor > mental ray Connection rollout >
Unlock the Surface or Photon component. > Click the
shader button for the Surface o r Photon component. >
Material/Map Browser > DGS Material (3dsmax)
Material Editor > mental ray material > Cli ck the bu tton
for the Surface or Photon component. > Material/Map
Browser > DGS Material (3dsmax)
Note: Shaders appear in the Browser only if the mental
ray renderer is the cur rently active renderer.
DGS st ands for Diff use, Glossy, Specular. This
shader is a mental ray phenomenon (a scripted
shader tree) that provides a physically accurate
simulation of a sur face. With the mental ray
Connection rollout of a basic 3ds Max material,
or a mental ray material, you can assign the DGS
Material shader to either the Surface or Photon
component.
Despite the similarity in name, this shader is
distinct from the DGS material (page 2–1580).
Both, in turn, provide a custom 3ds Max interface
to the “DGS Material Photon” shader that is part
of the men tal images physics library.
Interfa ce
Parameters rollout
Note: The button to the right of the first six controls
is a shortcut shader button. C l icking one of
these buttons displays the Material/Map Browser
(page 2–1412) so you can assign a shader to this
component. When a map or a shader has been
assigned to a component, this button displays
theletter“M,”andthecomparablebuttononthe
Shaders rollout displays the map or shader name.
Diffuse—Click the color swatch to display a Color
Selector (page 1–161) and change the material’s
diffuse color.
Glossy Highlights—Click the color swatch to
displayaColorSelectorandchangethecolorof
glossy highlights.
Specular—Click the color swatch to display a Color
Selector and change the color of mirror reflections.
When the specular color is white, the material
is 100 percent reflective, like a mirror. When
the specular color is black, the material does not
reflect an y of its surroundings.
Shiny—Sets the width of glossy hig hlights. The
larger this value, the smaller the highlights.
Default=30.0.