I'm trying to program a spinning cube using basic draw commands (eg 10 draw 320,200 to 340,200 etc Not openGL). I know it sounds a bit basic but I'm interested in the maths of it. Does anyone know how to project an object in perspective and rotate it? I've read books on matrices but I'm none the wiser. Peace and love, Crazy Ben.
To Evilmonkey29
Thanks - I've been to the site and I've learnt a few things, but I'm still a bit stuck. One of the tutorials said that in order to get a 3d object onto a 2d screen you need to divide by z so that the coordinates become x/z and y/z. Now I can sort of understand that as things go further into the distance then z will increase, and if you make the centre of the screen the vanishing point(0,0) then as z increases the objects get smaller and smaller until they vanish at the centre. The problem is, how do I rotate something with x/z and y/z. The closest equation I can get is:
draw 0,0 to x/(cos*angle*hypoteneuse),(sin*angle*hypoteneuse)/(cos*angle*hypoteneuse)
If this thread has not yet been solved, please Mark this Thread as Unsolved so that it displays a correct status. Posters are less inclined to contribute to a thread that has already been marked solved.
This thread is more than three months old
No one has posted to this discussion for at least three months. Please let old threads die and do not reply to them unless you feel you have something new and valuable to contribute that absolutely must be added to make the discussion complete. Otherwise, please start a new thread in this forum instead.