identity_quat

Global variable containing the identity quaternion. Allegro game programming library.

Provided by: allegro4-doc (Version: 2:4.4.3.1-4.1build3)
Source: allegro4.4
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SYNOPSIS

#include <allegro.h>

extern QUAT identity_quat;

DESCRIPTION

Global variable containing the 'do nothing' identity quaternion. Multiplying by the identity quaternion has no effect.