blendc man page on IRIX

blendc man page on IRIX

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blendc(3G)							    blendc(3G)

NAME
     blendc - specifies a constant color for blending

FORTRAN 77 SPECIFICATION
     subroutine blendc(red, green, blue, alpha)
     real red, green, blue, alpha

PARAMETERS
     red   is a floating point value between 0 and 1 (default 1.0).

     green is a floating point value between 0 and 1 (default 1.0).

     blue  is a floating point value between 0 and 1 (default 1.0).

     alpha is a floating point value between 0 and 1 (default 1.0).

DESCRIPTION
     blendc specifies the color components used by blend functions
     BFCA, BFCSA, BFCC and BFMCC.  The blend color can be changed only by
     calling blendc.  Since blend color is not stored in the framebuffer, it
     can be used even if the framebuffer does not include alpha bitplanes.
     Red, green, blue, and alpha are clamped to the closed range 0 through 1
     when blendc is called.

     Red, green, blue, and alpha are 0 by default.

SEE ALSO
     blendf

NOTES
     IRIS-4D G, GT, GTX, VGX, and VGXT models, the Personal Iris, Indigo
     Entry, Indy, XL, XS, XS24, XZ, Elan and Extreme systems do not support
     blendc.

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