is it possible to draw the 3D coordinate to the screen? including x-axis,
y-axis, and z-axis
I am trying to build a program that after placing all 3D objects, the user
can easily see where they are located, then use a mouse to move them.
And another thing I am trying to do is, when moving the mouse, the current
cursor and the origin will have a line; I can use up/down button to simulate
z-axis movement, so the user can see where the cursor is.
I have no clue at this point, can anyone share a hint?