.\" Generated by the Allegro makedoc utility .TH identity_matrix 3alleg4 "version 4.4.2" "Allegro" "Allegro manual" .SH NAME identity_matrix, identity_matrix_f \- Global containing the identity matrix. Allegro game programming library.\& .SH SYNOPSIS .B #include .sp .B extern MATRIX identity_matrix; .B extern MATRIX_f identity_matrix_f; .SH DESCRIPTION Global variables containing the 'do nothing' identity matrix. Multiplying by the identity matrix has no effect.