D2OpenGL test build - 2026-09-27
================================

An OpenGL renderer for Diablo II: Lord of Destruction 1.14d, restored from Blizzard's
own Mac renderer, with a wide view, a new HUD, HD text, and optional AI-upscaled
HD graphics packs. This is a TEST build: expect rough edges.


What you need
-------------
- Your own Diablo II + Lord of Destruction install, patched to 1.14d.
- Windows (tested on Windows 11).
- A graphics card with OpenGL 3.3 or newer.
- Disk space for the HD packs you pick (all of them: about 2 GB; see below).


Install
-------
1. Unzip everything into your Diablo II folder (where Game.exe is), keeping the
   folders. You get D2OpenGL.dll, D2OpenGL.ini, Play.bat, this README and a
   D2OpenGL-hd folder.
2. Download the HD packs you want (.hd files) and put them in the D2OpenGL-hd
   folder. Without any pack the game still runs, with smoothed (MMPX) sprites.
   The packs are split so you can skip what you do not want:
     00-amazon-full-clean00.hd   the Amazon, all gear (newest, best quality)
     00-sorceress-full-clean00.hd the Sorceress, all gear (newest, best quality)
     05-characters.hd            the other classes (older quality, not every frame)
     10-units.hd                 monsters, NPCs, objects, missiles, effects (the big one)
     20-ui.hd                    interface: panels, menus, automap
     30-items.hd                 items in the inventory and on the ground
     40-tiles-act1.hd .. 44-tiles-act5.hd   floors and walls, one file per act
   Keep the file names as they are: the game loads them in name order.

No game file is changed. To uninstall, delete the files you added.


Start
-----
Double-click Play.bat. It runs:

    rundll32 D2OpenGL.dll,Play

which starts Game.exe with the OpenGL renderer loaded (on 64-bit Windows it uses the
32-bit rundll32 in SysWOW64). Options after Play.bat are passed on to the game, for
example "Play.bat -w" for a window.

You do not need -direct. (-direct makes the game read loose files from a "data"
folder before its MPQ archives; that is only for mods.)

Do not start Game.exe directly: then you get the normal game without D2OpenGL.


Keys
----
- G: switches between the HD view and the original ("legacy") look. You can rebind it
  in Configure Controls, "Toggle HD Graphics".
- Screen Shot (Print Screen by default, the game's own key): saves the picture as you
  see it, full resolution, as ScreenshotNNN.png and ScreenshotNNN.jpg in the game folder.
- Toggle Item Labels (unbound; set it in Configure Controls): keeps the Alt item labels on.


Extras (all switch off with G)
------------------------------
- Automap: monsters (bosses orange, uniques gold, champions blue), superior-or-better
  items, optional missiles and map reveal. Esc > Options > Graphics Options > Automap.
- Item tooltips show the item level and sockets (filled/total).
- Your target's life in percent, also on mercenary and party portraits.


Settings
--------
In the game: Esc > Options > Graphics Options (automap, item info, filter, lighting, coloured light, text,
width, screen mode, HUD layout, shadows, transparency, colour detail, ...). Changes are
saved to D2OpenGL.ini. Some say "at next start": restart the game for those.

The defaults in this build: borderless full screen, width following your monitor
(wide view up to 16:9), HD view, HD text, wide HUD.


Known issues
------------
- Tested on one machine (Windows 11 in a virtual machine). Other GPUs and drivers are
  untested: that is what this test is for.
- The HD packs do not cover everything yet. What is not in a pack is drawn smoothed
  (MMPX) instead. Only the Amazon has the newest, cleanest pack.
- The first start after install builds the HD text cache (D2OpenGL-hd\cache); it can
  take a few seconds.
- The game starts in borderless fullscreen. For a window, set Window = on under
  [Display] in D2OpenGL.ini (or Esc > Options > Graphics Options > Display > Screen).
- Single player and TCP/IP only. Do not use this on Battle.net.
- Other mods and tools that hook the game (PlugY, glide wrappers, bots, ...) are untested
  and may conflict.
- If the game does not start, look in D2OpenGL.log in the game folder.


Feedback
--------
Please send what you see - screenshots, your GPU and Windows version, and
D2OpenGL.log if something went wrong - to:

    the person who sent you the download link