RSL Information Function - attribute

float attribute( string name, output type variable )

Table 15.4 Data names known to the attribute function
   Name                                                    Type

"ShadingRate"	uniform float
"Sides"	uniform float
"matte"	uniform float
"GeometricApproximation:motionfactor"	uniform float
"displacementbound:sphere" *	uniform float
"displacementbound:coordinatesystem" *	uniform string
"identifier:name" *	uniform string
* note that "displacementbound:sphere' does not return the value exactly as specified in the RIB file, but rather returns its length in the coordinate system returned by "displacementbound:coordinatesystem".

ex. 본인이 제일 많이 쓰는 스타일은...

string rayblur;

if (attribute("user:rayblur", rayblur) == 1) {

    ... ... ... ...

}