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clear_zbuffer(3alleg4) Allegro manual clear_zbuffer(3alleg4)

NAME

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

SYNOPSIS

#include <allegro.h>

void clear_zbuffer(ZBUFFER *zbuf, float z);

DESCRIPTION

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).

SEE ALSO

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

version 4.4.3 Allegro