NAME

shaderange − sets range of color indices used in depthcueing

SPECIFICATION

C
shaderange(lowindex, highindex, z1, z2)
Colorindex lowindex, highindex;
Screencoord z1, z2;

FORTRAN
subroutine shader(lowindex, highindex, z1, z2)
integer*2 lowindex, highindex, z1, z2

Pascal
procedure shaderange(lowindex, highindex: longint;
z1, z2: longint);

DESCRIPTION

shaderange sets the range of color indices used in drawing depthcued lines and points. z values in the range specified by z1, z2 are mapped linearly into the range of color indices that lowindex, highindex specify.  z values less than z1 map to lowindex; z values greater than z2 map to highindex. 

SEE ALSO

depthcue IRIS Graphics Programming, Section 13.1, Shading

Version 2.5  —  April 22, 1987