🚀 go-pugleaf

In article <418l3n$1...@news.acns.nwu.edu> sger...@merle.acns.nwu.edu (Steven Gershenfeld) writes:
>From: sger...@merle.acns.nwu.edu (Steven Gershenfeld)
>Subject: Re: Quake, WOW!
>Date: 21 Aug 1995 00:47:51 GMT

>In article <41813q$5...@nnrp3.primenet.com>,
>John D. DeCuir <decu...@primenet.com> wrote:
>>Kyle Klukas <klu...@students.uiuc.edu> wrote:
>>
>>>True 3D shouldn't have slowed down System Shock much - Dark Forces and 
>>>Decsent are "true 3D" and both are very fast.
>>
>>While Descent is certainly true 3D, the supposition that Dark Forces
>>is also true 3D is debatable at best.  Let's compromise and say it's
>>2.75D.  :)
>>  -John
>>
>Dark Forces:  3D engine and about 4 degrees of freedom for your character.

Dark Forces is "NOT" 3D, it just uses a trick for looking up and down 
All walls are always built out of (textured) VERTICAL lines.
Same thing in Heretic, Rott, ...
Bridges, which are not possible in Doom are only objects, which have been 
added later.
So the Engine is pretty much the same as the Doom-engine, they just added a 
few "real 3D-Objects".

>Descent:  3D engine and 6 degrees of freedom for your character.
>Doom, Doom2:  2.5D engine and 3 degrees of freedom for your character.
>Heretic:  2.5D engine and 3-4 degrees of freedom for your character.

>2.5D engine means simulated z-axis. 

>Enough said.

>Steven