3D Calculations

**DarknessX** · 12-09-2007, 02:52 PM

I'm doing a project for Math, for my Math 11-2 course (G. 11, level 2) and I have decided to do it on 3D Calculations and such. So basically, what I wanted to know, was what types of math's are involved in things like calculating a characters current position, acceleration, direction of motion, things like that. If possible, some (fairly simple) pseudo code would be a great help.

Basically my project is on anything to do with 3D math. Please try to write anything you give me in a way people who know little 3D related math can understand it... (I have to present this in an understandable format

)

Thanks everyone!

**Brainer** · 12-09-2007, 03:34 PM

Look at this:
http://www.glsoftworks.pastebin.com/f71bee92

Don't get scared - 10698 lines of code.

**NecroDOME** · 12-09-2007, 08:11 PM

@Brainer, thats usefull stuff

!!

@DarknessX, for 3D math its mostly matrix and vector calculations. So thats what I would look for.

**Brainer** · 12-09-2007, 09:22 PM

If you have D2006, you can implement vectors like this:

Code:

type
  TVector3f = class&#40;TObject&#41;
    X, Y, Z&#58; Single;

    class operator Implicit&#40;Value&#58; Single&#41; &#58; TVector3f; // &#58;=
    class operator Add&#40;V1&#58; TVector3f; V2&#58; TVector3f&#41;&#58; TVector3f; // +
    &#123; ... and so on ... &#125;
  end;

I'm not sure, but it should works with records, too.

**DarknessX** · 13-09-2007, 01:03 AM

Thanks alot, thats given me a good starting point for my research...

@Brainer:
That huge code file is crazy! I've only gotten a game I was making (text-based) to 3500 lines...

@NecroDome:
Thanks, I'll look into those subjects