PSRFM(3g) — Subroutines

Name

PSRFM − Sets the reflectance model used to display front-facing portions of area primitives.

Operating States: PHOP, ∗, STOP, ∗
PHIGS PLUS function
Creates a structure element

Old Syntax

DSIRE (REFM)

Argument Data Type Access Description
---------------------------------------------------------------------------
REFM Integer Read Interior reflectance model
---------------------------------------------------------------------------

New Syntax

PSRFM (RFM)

Argument Data Type Access Description
---------------------------------------------------------------------------
RFM Integer Read Interior reflectance model
---------------------------------------------------------------------------

Constants

Defined Argument   Constant   Description
---------------------------------------------------------------------------
RFM                PNORM      Digital PHIGS performs no reflectance
                              calculation.
                   PARM       Digital PHIGS produces ambient reflectance
                              effects.
                   PADRM      Digital PHIGS produces ambient and diffuse
                              reflectance effects.
                   PADSRM     Digital PHIGS produces ambient, diffuse, and
                              specular reflectance effects.
---------------------------------------------------------------------------

Description

PSRFM sets the reflectance model Digital PHIGS uses to display front-facing portions of area primitives. Depending on the current edit mode, this function either inserts the new structure element directly after the element indicated by the pointer or replaces the element indicated by the pointer. The pointer then points to the new set reflectance model element.

During structure traversal, Digital PHIGS sets the current reflectance model entry in the PHIGS traversal state list to the value associated with the element. When the current reflectance model ASF entry in the traversal state list is INDIVIDUAL, Digital PHIGS uses this value to display front-facing portions of subsequent area primitives. If the specified reflectance model value is not available on a workstation, Digital PHIGS uses value 1.

If Digital PHIGS is in immediate mode, it performs this function immediately, but the function does not create a structure element.

The new function syntax conforms to the ISO Fortran standard. Digital recommends that you code using the new function syntax.