20.1.10.50 ST_PresetMaterialType
Describes surface appearance of a shape. The material type combines with lighting characteristics to create the final look and feel of a shape. The set of material properties which can be combined together to create the presets below consist of the following characteristics:
-
Specular color – This defines the color of the highlight associated with the material.
-
Specular power – This defines the size and how intense the highlight is. Smaller values provide a larger,
-
but less intense highlight, while larger values provide a smaller, but more intense highlight.
-
Diffuse color – This defines the perceived color of the material where an object is directly illuminated by
-
a light source. Generally speaking, the default color here would be based on the shape fill color.
-
Ambient color – This defines the perceived color of the material where an object is not directly
-
illuminated by a light source. Generally speaking, the default color here would be based on the shape
-
fill color.
-
Emissive color – This defines the color of a light which is perceived to be given off by an object.
-
Diffuse Fresnel effect – This is an effect that either darkens (approaches black) or lightens (approaches
-
white) the diffuse color of the material type at glancing angles. Positive values cause the material to
-
become brighter, negative values cause the material to become darker.
-
Alpha Fresnel effect – This is an effect that either makes the material more opaque or more transparent
-
at glancing angles. Positive values cause the material to become more opaque, negative values cause
-
the material to become more transparent.
In the following examples, the exact values given for certain properties should be understood to be relative values in order to provide a reference. These values could be different depending upon technologies used to render the material types. The following properties were used to define the shape used in the image examples below:
- Rounded rectangle shape
- Circle bevel type
- Three Point light rig type
- Camera type defined by the perspectiveContrastingRightFacing preset
- Bevel width and height each equal to 190500
This simple type’s contents are a restriction of the W3C XML Schema token datatype.
This simple type is restricted to the values
listed in the following table:
Enumeration Value
Description
The clear material type has the following characteristics: - Specular Color: light gray - Diffuse Color: shape fill color with 90% alpha - Ambient Color: shape fill color with 90% alpha - Emissive Color: black - Diffuse Fresnel value: -8 - Alpha Fresnel value: 1
[Example: Consider the following example of the clear material type:
Enumeration Value
end example]
Description
The dkEdge material type has the following characteristics: - Specular Color: white - Specular Power value: 35 - Ambient Color: shape fill color - Emissive Color: black - Diffuse Fresnel value: -2
[Example: Consider the following example of the dkEdge material type:
end example]
The flat material type has the following characteristics: - Specular Color: very light gray - Specular Power value: 50 - Diffuse Color: black - Ambient Color: black - Emissive Color: shape fill color - Diffuse Fresnel value: -4
Enumeration Value
Description
[Example: Consider the following example of the material type:
end example]
The legacyMatte material type has the following characteristics: - Specular Color: black - Ambient Color: shape fill color - Emissive Color: black - Diffuse Fresnel value: -4
[Example: Consider the following example of the legacyMatte material type:
end example]
The legacyMetal material type has the following characteristics: - Specular Color: shape fill color - Specular Power value: 32 - Diffuse Color: shape fill color darkened by adding black - Ambient Color: shape fill color darkened by adding black
Enumeration Value
Description
Emissive Color: black
[Example: Consider the following example of the legacyMetal material type:
end example]
The legacyPlastic material type has the following characteristics: - Specular Color: white - Specular Power value: 32 - Ambient Color: shape fill color - Emissive Color: black
[Example: Consider the following example of the legacyPlastic material type:
end example]
The legacyWireframe material type has none of the associated material properties and is based on a wireframe interpretation of the shape.
[Example: Consider the following example of the legacyWireframe material type:
©ISO/IEC 2016
– All rights reserved
Enumeration Value
Description
end example]
The matte material type has the following characteristics: - Specular Color: black - Ambient Color: shape fill color - Emissive Color: black
[Example: Consider the following example of the matte material type:
end example]
The metal material type has the following characteristics: - Specular Color: shape fill color plus white, which is brightened by 1.5 times the normal value - Specular Power value: 12 - Ambient Color: shape fill color - Emissive Color: black - Diffuse Fresnel value: 4
[Example: Consider the following example of the
Enumeration Value
Description
end example]
The plastic material type has the following characteristics: - Specular Color: light gray - Specular Power value: 12 - Ambient Color: shape fill color - Emissive Color: black
[Example: Consider the following example of the plastic material type:
end example]
The powder material type has the following characteristics: - Specular Color: dark gray - Specular Power value: 10 - Diffuse Color: gray - Ambient Color: gray - Emissive Color: black - Diffuse Fresnel value: 2
Enumeration Value
Description
[Example: Consider the following example of the powder material type:
end example]
The softEdge material type has the following characteristics: - Specular Color: white - Specular Power value: 35 - Ambient Color: shape fill color - Emissive Color: black - Diffuse Fresnel value: 4 - Alpha Fresnel value: -10
[Example: Consider the following example of the softEdge material type:
end example]
The softMetal material type has the following characteristics: - Specular Color: shape fill color lightened with white by 50% - Specular Power value: 8
Enumeration Value
Description
Ambient Color: shape fill color Emissive Color: black
[Example: Consider the following example of the softmetal material type:
end example]
The translucentPowder material type has the following characteristics: - Specular Color: dark gray - Specular Power value: 10 - Diffuse Color: shape fill color with 30% transparency - Ambient Color: shape fill color with 30% transparency - Emissive Color: black - Diffuse Fresnel value: 2 - Alpha Fresnel value: -1
[Example: Consider the following example of the translucentPowder material type:
end example]
Enumeration Value
Description
(Warm
Matte)
The warmMatte material type has the following characteristics: - Specular Color: dark gray - Specular Power value: 8 - Ambient Color: shape fill color - Emissive Color: black
[Example: Consider the following example of the warmMatte material type:
end example]
[Note: The W3C XML Schema definition of this simple type’s content model (ST_PresetMaterialType) is located in A.4.1. end note]