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I want to do a 3d engine.

-No wait! Don't go away for that, now read here.
The engine will be based on three major things:

A "floor".

Static or moving objects.

A camera.

The floor wil be created by a two-dimensional matrix of vertices
(the dimensions in the matrix is x and z values of the matrix
(you multiplicate it with n) and the value stored in one of the
"boxes" in the matrix is the y value of the vertex) like this:

This wil create the floor.

Static objects should be trees, bushes, maybe even simple houses,
etc. moving objects will be players etc. (My dream is to create a lan-based 3d game but I will not start with 500 polygons for each player and I will not start with the game but the engine with VERY low-poly objects like first: a floor, second: a floor and a box, ...)

The camera is the player and it can be moved in x,y,z directions
turned 360 degrees and looking up and down =rotating around the
y axis and z axis (?)

The part that involves you is that I want to know the formulas
for this rotating (I know there's a lot of 3D tuts "learn rotating your
own box" but I think it's better to talk to you face to face (lol? anyone?))

Also: What method should I use to know what polygon to draw
before I draw that one?

To end: Big project? h*ll yeah, but I really want to learn this
and I will let it take its time and see it as "education" instead
of a game project that must be finished soon.

Thanks in advance!

PS: I will code this in C++ probably with some opengl lib, for example:
GLUT

Quote: (My dream is to create a lan-based 3d game...)

Mine too. I think there's ENORMOUS potential for a high speed Sonic Hedgehog like net game. Imagine CTF on a huge map like BF1942 where every player moves at the speed of the jeep.

Of course, sometime in the future we may see true voxel-based terrain.

Quote:PS: I will code this in C++ probably with some opengl lib

Same. But I just don't really have the energy or mathematical skills to get anywhere serious with it. I'm going to wait until the end of high-school

voxel? oh dear, level files on 500mb

Quote:voxel? oh dear, level files on 500mb

Well - like with bitmaps, you can do "cubic tiles".

Well, some thoughts:

vertex_x_camera=vertex_x_world*cos(camera_xz_angle)

vertex_z_camera=vertex_z_world*sin(camera_xz_angle)

vertex_y_camera=vertex_y_world*cos(camera_y_angle)


This is not some really working math but it may show in wich
direction I think. I do have a feeling for how I think it should be
done but when I sit down to write it dow my brain goes just bonk.

Well here's a 3D tutorial, but not about polygons and such.
But it might be a good idea to learn it anyway.
http://www.qbasicnews.com/tutorials.php?...=view&id=9

Quote:voxel? oh dear, level files on 500mb

Worms 3 is using a combo engine... so the terrain is fully destructible like in Armaggeddon, but still manageable. Check the screenies, they're pretty sweet. (Big voxels, but they have it working...)

http://relsoft.wrq.cjb.net/files/3dtorus.bas

Those are the standards.

I'm thinking of using the equations in the tutorial blue_keyboard
showed me, but I'm planning to add some sort of
planes/spaseships (like in BF1942) (sooner or later) (and also other
vechiles) and in a plane, when it turns it also rotates around a Z axis
so since the math in the tut only covers rotations around the X and Y axis
and I don't have the mathematical knoledge to add a Z axis rotation
equation part to the existing equation so I ask you to help me out and

and somewhere on this equation something like

*s!(gamma)
*c!(gamma)

should be added I think...

Here.I managed to get your equations working. The P somehow Y-relocates your Center.

And the only problem I have with your equation is you CAN'T rotate the X and Y axes independentlyof each other.