xfpt(3G) xfpt(3G)
NAME
xfpt - transforms points
SPECIFICATION
C xfpt(x, y, z)
Coord x, y, z;
xfpti(x, y, z)
Icoord x, y, z;
xfpts(x, y, z)
Scoord x, y, z;
xfpt2(x, y)
Coord x, y;
xfpt2i(x, y)
Icoord x, y;
xfpt2s(x, y)
Scoord x, y;
xfpt4(x, y, z, w)
Coord x, y, z, w;
xfpt4i(x, y, z, w)
Icoord x, y, z, w;
xfpt4s(x, y, z, w)
Scoord x, y, z, w;
FORTRAN subroutine xfpt(x, y, z)
real x, y, z
subroutine xfpti(x, y, z)
integer*4 x, y, z
subroutine xfpts(x, y, z)
integer*2 x, y, z
subroutine xfpt2(x, y)
real x, y
subroutine xfpt2i(x, y)
integer*4 x, y
subroutine xfpt2s(x, y)
integer*2 x, y
subroutine xfpt4(x, y, z, w)
real x, y, z, w
Page 1 (printed 8/20/87)
xfpt(3G) xfpt(3G)
subroutine xfpt4i(x, y, z, w)
integer*4 x, y, z, w
subroutine xfpt4s(x, y, z, w)
integer*2 x, y, z, w
DESCRIPTION
xfpt multiplies the specified point (x, y, z) by the top
matrix on the matrix stack and turns off the clippers and
scalers in the Geometry Pipeline. In feedback mode, the
feedback buffer saves the 4-D result of the multiplication.
In non-feedback mode, the routine is ignored.
SEE ALSO
Programming Guide, Section 10.2, Feedback Mode
NOTE
The MIPS processor can access full words only on full-word
boundaries. xfpt does not guarantee such alignment. See
the Programming Guide, Section 10.2, Feedback Mode, for
information on successful alignment.
This routine is available only in immediate mode.
Page 2 (printed 8/20/87)