SET BACK REFLECTANCE PROPERTIES

PSBRFP

CALL SEQUENCE

CALL PSBRFP(RPTYPE,LDR,DATREC)

INPUT PARAMETERS

INTEGER RPTYPE

Reflectance properties type

INTEGER LDR

Length of data record array

CHARACTER*80DATREC(LDR)

Data record

PHIGS STATE

EFFECT

A SET BACK REFLECTANCE PROPERTIES element is inserted in the open structure after element pointer or replaces the element indicated by element pointer, depending on edit mode. Element pointer then points to the SET BACK REFLECTANCE PROPERTIES element. The value specified by the parameter is associated with the element.

When an element of this type is interpreted, the current back reflectance properties entry in the traversal state list are set to the values associated with the element. These values are (possibly) used when displaying back-facing portions of subsequent area defining output primitives when the current back reflectance properties ASF in the traversal state list is INDIVIDUAL.

See SET REFLECTANCE PROPERTIES for a description of the data mapping method data record.

EXTENSION TO THE PHIGS STANDARD

If GPHIGS is in NRS mode, the effect of this function is different from the effect described in the standard.

In NRS mode, (see OPEN PIPE), the element is not stored in a structure. It is sent to the workstation on which the pipe is opened.

ERRORS

5

Ignoring function, function requires state (PHOP,*, STOP,*)

SEE ALSO

fill area set 3 with data, set of fill area sets 3 with data, triangle set 3 with data, triangle strip 3 with data, quadrilateral mesh 3 with data, cell array 3 plus, non-uniform b-spline surface 3, non-uniform b-spline surface 3 with data, set reflectance properties, open structure, open pipe (ext), inquire current element content, inquire current element type and size