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;

 

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