3D world coordinates

[StargateSG1]

Hi,

I am making a GTA2 like game and I am very confused of the 3D world coordinate system.

I think weather is it a good idea to make the world start from (0, 0, 0) and end lets say at (1000, -1000, 0)? And not make the world so that (0, 0, 0) is the center of the map?

I hope you understand what I mean?

[StargateSG1]

Oh, and what is the biggest number the camera coord could be?

[arras]

there is no "center of world". Coordinate 0,0,0 is just one point in infinite space which have just coordinates 0,0,0.
You can choose any other coordinate to be center of your world.

Second question I don't know...

[Acki]

Well, I don't know about Irrlicht, but if you create maps with the Tactical Ops editor (Unreal editor) it's like this:
the farer away from (0,0,0) the inaccurater the engine will calculate...

[Midnight]

I don't mean to waste space and I don't know the answer since my Irrlicht experience is almost entirly in GUI.

I just want to ask the question.. does this answer his question?

from what I gather he just wants to know the best way to configuare his map to the coords... my guess would be that it has to start at 0,0,0 and work up like 1000,1000,0 the center would be 500,500,0 and the bigger you get the slower your game is or rather less accurate.

as I sit here and think about it that makes perfect sense. but thats assuming your giving a map the size of 500 and it's largest coord 1000 effectivly making each world unit 2 map units in size. right?? now I'm confused.

seems like that would explain the positioning problems that GTA:VC has when converted to multiplayer... I have no clue but I sure like to talk =)

lmfao @ inaccurater & farer

farther...less accurate...was that for fun or just bad translation?

[StargateSG1]

Ok thanks for the answers.

It just seems confusing that the (0, 0, 0) is somewhere in the middle of the world because then you have to mess with the negative numbers and so. It's just confusing.

Now I'll make it the start of the world.