al_scale_transform_3d - Man Page

#include <allegro5/allegro.h>

void al_scale_transform_3d(ALLEGRO_TRANSFORM *trans, float sx, float sy,
    float sz)

Combines the given transformation with a transformation which scales coordinates by the given vector.

5.1.3

al_use_projection_transform(3)

al_build_camera_transform(3).