The IfcSpecularExponent defines the datatype for exponent determining the sharpness of the 'reflection'. The reflection is made sharper with large values of the exponent, such as 10.0. Small values, such as 1.0, decrease the specular fall-off.

IfcSpecularExponent is of type REAL.

NOTE  The datatype relates to the definition of specular_exponent in ISO 10303-46 entity surface_style_reflectance_ambient_diffuse_specular.
HISTORY  New type in IFC2x2.

XSD Specification:

 <xs:simpleType name="IfcSpecularExponent">
  <xs:restriction base="xs:double"/>
 <xs:element name="IfcSpecularExponent-wrapper" nillable="true">
    <xs:extension base="ifc:IfcSpecularExponent">
     <xs:attributeGroup ref="ifc:instanceAttributes"/>

EXPRESS Specification:

TYPE IfcSpecularExponent = REAL;

Link to EXPRESS-G diagram EXPRESS-G diagram

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