8

DGS Material Shader (mental ray) 1527
Clicking the button displays a Connect Parameter
To Shader dialog (page 2–1523)
,whichletsyou
change which parameter is being used.
Impor tant: UV Coordinate (page 2–1538) and XYZ
Coordinate (page 2–1541)
are the only shaders with
multiple return values provided with 3ds Max. You might
encounter multiple return values in shaders provided
with other shader libraries or custom shader code.
DGS Ma teri al S hader (mental ray )
Material Editor > mental ray Connection rollout >
Unlock the Surface or Photon component. > Click the
shader button for the Surface or Photon component. >
Material/Map Browser > DGS Material (3dsmax)
Material Editor > mental ray material > Click the button
for the Surface or Photon component. > M aterial/M ap
Browser > DGS Material (3dsmax)
Note: Shaders do not appear in the Browser unless you
have enabled the mental ray extensions by using the
mental ray Preferences panel. In addition, shaders don’t
appear unless the mental ray renderer is the currently
active renderer.
DGS stands for Diffuse, Glossy, Specular. This
shader is a menta l ray phenomenon (a scr ipted
shader tree) that provides a physically accurate
simulation of a surface. 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
DG S material (page 2–1389) .
Both, in turn, provide a custom 3ds Max interface
to the “DGS Material Photon” shader that is part
of the mental images physics library.
Interfa ce
Parameters rollout
Note: The button to the right of the first six controls
is a shortcut shader button. Clicking one of
these buttons displays the
Material/Map Browser
(page 2–1256)
so you can assig n 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 1–157)
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 any of its surroundings.
Shiny—Sets the w idth of glossy highlights. The
larger this va lue, the smaller the highlights.
Default=30.0.