Adobe Photoshop CS6 User Manual page 693

Illumination Defines a color that doesn't rely on lighting to display. Creates the effect that the 3D object is lit from within.
Gloss Defines the amount of light from a source that reflects off the surface and back to the viewer. You can adjust glossiness by entering a value
in the field or using the scrubby slider. If you create a separate glossiness map, the intensity of colors in the map controls glossiness in the
material. Black areas create full glossiness, white areas remove all glossiness, and middle values reduce the size of a highlight.
Shine Defines the dispersion of the reflected light generated by the Gloss setting. Low shininess (high dispersion) produces more apparent light,
with less focus. High shininess (low dispersion) produces less apparent light and brighter, crisper highlights.
Adjusting Gloss (left number) and Shine (right number)
Note: If a 3D object has more than the nine texture types Photoshop supports, additional textures appear in the Layers panel and the 3D Paint
Mode list. (To display the latter, choose 3D > 3D Paint Mode, or use the Paint On menu in the Scene section of the 3D panel
Specular The color displayed for specular properties (for example, highlight glossiness and shininess).
Ambient Sets the color for ambient light visible on reflective surfaces. This color interacts with the Global Ambient Color for the entire scene. See
3D Scene settings (Photoshop
Refraction Sets the refractive index when scene Quality is set to Ray Traced and the Refractions option is selected in the 3D > Render Settings
dialog box. Refraction is the change in light direction that occurs at the intersection of two media (such as air and water) with different refractive
indexes. The default value for new materials is 1.0 (the approximate value for air).
Sample and apply materials directly on objects
The 3D Material Drop tool works much like the traditional Paint Bucket tool, letting you sample and apply materials directly on 3D objects.
1. In 3D panel, select the 3D Material Drop tool
2. Move the pointer over the 3D object in the document window. When the material you want to sample is outlined, Alt-click (Windows) or
Option-click (Mac OS).
3. Move the pointer to outline the material you want to change, and click.
For a visual example of an outlined material, see
Select materials directly on objects
1. In 3D panel, hold down the 3D Material Drop tool
2. Move the pointer over the 3D object in the document window. When the material you want to select is outlined, click.
Apply, save, or load material presets
Material presets let you quickly apply groups of texture settings. The default presets provide various materials like steel, fabric, and wood.
Extended).
.
Outline the selected material or mesh in the document
, and select the 3D Select Material tool
window.
.