D L W
Doom Legacy Wads
by
Jean-Yves Delpech
aka Jive


by
Thierry Van Elsuwe


World Wads Web
Authors dedicated site
My best screen shots

OpenGl mode
Software mode
Fight without winner?
58159  times visited. 

 
WADS

List
  1  

Util

  1  
Doom1
1 2 3
DoomII
1 2 3 4
Final
  1  
Best'of
  1  
Databases
JDSD MRD
 

It's not without reason that the new game "DOOM 3", from Id Software, will be an OpenGl game...!
To illustrate that purpose, I have made a study about one of the biggest problem of OpenGl mode :
the impossibility to draw correctly a transparent texture on a one sided linedef !
With simple words, that mean that, when a wall is surrounded by vacuum (there is nothing behind it),
you must see vacuum throught transparents parts of this texture! No?
But, it's impossible! Because of that impossibility, in Software mode,
the Doom graphic's engine fill this vacuum with a texture by default, always the same!
On my first Doom page, I released JCM : with the map E2M7, I have had to solve this problem!

 
This texture has been used, in JCM, to adorn walls of a hall.
This page has a black background : so, you see black
throught the rungs! And black is the vacuum "...color"!
But remember : the Doom graphic's engine fill this vacuum
with a texture by default!

Look now the illustration of this...engine handling :
 

Do you understand better the obtained effect? You think wall texture on this picture is another one?
No! It's the same, on left screen handled by the Doom graphic's engine in Software mode,
and, on right screen, showing the actual limitation of Opengl mode, but the true texture!

 

Software mode

OpenGl mode

And now, look : I have obtained the correct texture : it's what I call "Work for OpenGl compatibility"!
How have I made?...It's my wad author secret! He he...
 

 

Another example : transparent texture (BROVINE1) on one sided linedefs
 

Deathwish E1M2 Software mode

Deathwish E1M2 OpenGl mode

Well, my friends, do you still want to use Software mode...?
BUT : be carefull ! You can use full OpenGl mode only on DLW wads, without any restriction!
They are all certified by your servitor...by the author's servitor, I must say,
because my work is like this sort of linedef : absolutely transparent!
You will never say : "Oh! Jive is passed here!"
Don't look, in the txt files, at the exact description of my work, and you will never think I have made something!

OpenGl mode
Software mode...
Fight with a winner!
Softwareexplosion!

HomePage Top ...?!?