Ann: Engine_3D, v.009

[Gautier <gautier.demontmollin@maths.unine.ch>]

Hi.

The 9th version of this small pure Ada experimental 3D
engine is released. The main addition is the "portal" technique:
a face of an object, more or less transparent, can be said to be
connected to another object, that is drawn before.
All this, recursively. It means a handful of lines more
in a non-critical part of the program, but also the possibility
of rendering more complex things like a level of your preferred
3D game (think: object=room, portal face=window or door)...

URL (@ Xoom -> be patient and if needed, click reload a few times) :
  http://members.xoom.com/gdemont/e3d.htm

Some details:

009: * first portal demo released (some lighting bugs you will see...)
     * again faster (up to 30%) due to usage of -funroll-loops option
       (waiting for GNAT 3.13 public release with special
       optimisations!)
     * usage of Flashsort sorting (K.-D. Neubert, Ada version:
       J. Delcourt)

Have fun - Gautier