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;