This will set the origin of the 3D world to location 0,0,0
(which is the center of the world). This means that you can define
an object at this point and then perform transforms on it to change
its angle, scale, or position without worrying about the actual
room coordinates. It is important to end transformation afterwards,
using the same command.
d3d_transform_set_translation(100, 100, 10);
draw_sprite(spr, 0 ,0 ,0);
The above code will draw a sprite translated to the position (100, 100, 0).