| clear_zbuffer(3alleg4) | Allegro manual | clear_zbuffer(3alleg4) |
clear_zbuffer - Writes a depth value into the given Z-buffer. Allegro game programming library.
#include <allegro.h>
void clear_zbuffer(ZBUFFER *zbuf, float z);
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).
create_zbuffer(3alleg4), set_zbuffer(3alleg4), destroy_zbuffer(3alleg4), exzbuf(3alleg4)
| version 4.4.3 | Allegro |