clear_zbuffer - Writes a depth value into the given Z-buffer. Allegro game programming library.

       Writes  z  into  the given Z-buffer (0 means far away). This function should be used to initialize the Z-
       buffer before each frame. Actually, low-level routines compare depth of the current pixel with  1/z:  for
       example, if you want to clip polygons farther than 10, you must call clear_zbuffer(zbuf, 0.1).

       clear_zbuffer - Writes a depth value into the given Z-buffer. Allegro game programming library.

create_zbuffer(3alleg4), set_zbuffer(3alleg4), destroy_zbuffer(3alleg4), exzbuf(3alleg4)

Allegro                                           version 4.4.3                           clear_zbuffer(3alleg4)

#include<allegro.h>voidclear_zbuffer(ZBUFFER*zbuf,floatz);