IfcReflectanceMethodEnum

IfcReflectanceMethodEnum定义了可用的不同反射率方法的范围。

IFC2x2中的新枚举类型。

Enumeration definition

Constant	Description
BLINN	A reflectance model providing a smooth, slightly shiny appearance.
FLAT	A reflectance model providing a constant colour. This model ignores the effect of all light sources.
GLASS	A reflectance model that supports an approximation of glass-like materials that have both reflective and transmissive properties.
MATT	A reflectance model providing a dull matte appearance.
METAL	A reflectance model providing a specular metallic appearance.
MIRROR	A reflectance model that supports secondary mirrored views through ray tracing.
PHONG	A reflectance model conforming with the Phong model in which reflections are greatest in the `mirror' direction of a surface opposite the viewing direction with respect to the surface normal.
PLASTIC	A reflectance model providing a specular effect which is similar to the Phong model.
STRAUSS	A reflectance model for metallic and non-metallic appearance based on a limited set of control parameter.
NOTDEFINED

EXPRESS Specification

TYPE IfcReflectanceMethodEnum = ENUMERATION OF (
 BLINN,
 FLAT,
 GLASS,
 MATT,
 METAL,
 MIRROR,
 PHONG,
 PLASTIC,
 STRAUSS,
 NOTDEFINED);
END_TYPE;