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.TH "al_transform_coordinates_3d_projective" "3alleg5" "" "Allegro reference manual" ""
.hy
.SH NAME
.PP
al_transform_coordinates_3d_projective \- Allegro 5 API
.SH SYNOPSIS
.IP
.nf
\f[C]
#include\ <allegro5/allegro.h>

void\ al_transform_coordinates_3d_projective(const\ ALLEGRO_TRANSFORM\ *trans,
\ \ \ float\ *x,\ float\ *y,\ float\ *z)
\f[]
.fi
.SH DESCRIPTION
.PP
Transform x, y, z as homogeneous coordinates.
This is the same as using al_transform_coordinates_4d(3alleg5) with the
w coordinate set to 1, then dividing x, y, z by the resulting w.
This will provide the same coordinates Allegro will draw to when a
projective transform is in effect as set with
al_use_projection_transform(3alleg5).
.PP
\f[I]Parameters:\f[]
.IP \[bu] 2
trans \- Transformation to use
.IP \[bu] 2
x, y, z \- Pointers to the coordinates
.PP
Since 5.2.4
.SH SEE ALSO
.PP
al_use_transform(3alleg5), al_transform_coordinates(3alleg5),
al_transform_coordinates_3d(3alleg5),
al_use_projection_transform(3alleg5)