blendcolor(3G) blendcolor(3G)
NAME
blendcolor - specifies a constant color for blending
C SPECIFICATION
void blendcolor(float red, float green, float blue, float 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
blendcolor specifies the color components used by blend functions
BFCA, BFMCA, BFCC and BFMCC. The blend color can be changed only by
calling blendcolor. 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 blendcolor is called.
Red, green, blue, and alpha are 0 by default.
SEE ALSO
blendfunction
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
blendcolor.
Page 1