From e18391bb0f7b2690d0055fb031caa5fe7d3cdecf Mon Sep 17 00:00:00 2001 From: Simon Howard Date: Tue, 30 Nov 2010 01:08:59 +0000 Subject: Add NOT-BUGS file with some common Vanilla gotchas. Subversion-branch: /trunk/chocolate-doom Subversion-revision: 2175 --- NOT-BUGS | 112 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 112 insertions(+) create mode 100644 NOT-BUGS (limited to 'NOT-BUGS') diff --git a/NOT-BUGS b/NOT-BUGS new file mode 100644 index 00000000..8dbf7262 --- /dev/null +++ b/NOT-BUGS @@ -0,0 +1,112 @@ + +The aim of Chocolate Doom is to behave as closely to Vanilla Doom as +possible. As a result, you may experience problems that you would +also experience when using Vanilla Doom. These are not "bugs" as +Chocolate Doom is behaving as intended. + +This is not intended to be a comprehensive list of Vanilla Doom bugs. +For more information, consult the "engine bugs" page of the Doom Wiki. + +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +== Game exits after title screen with message about game version == + +The game may exit after the title screen is shown, with a message like +the following: + + Demo is from a different game version! + (read 106, should be 109) + + *** You may need to upgrade your version of Doom to v1.9. *** + See: http://doomworld.com/files/patches.shtml + This appears to be v1.6/v1.666. + +This usually indicates that your IWAD file that you are using to play +the game (usually named doom.wad or doom2.wad) is out of date. +Chocolate Doom only supports the v1.9 IWAD file. + +To fix the problem, you must upgrade to the v1.9 IWAD file. The URL +in the message has downloadable upgrade patches that you can use to +upgrade. + +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +== Game exits when accessing the options menu == + +The game may exit with the message "Bad V_DrawPatch" when accessing +the options menu, if you have your mouse sensitivity set high. + +The Doom options menu has a slider that allows the mouse sensitivity +to be controlled; however, it has only a very limited range. It is +common for experienced players to set a mouse sensitivity that is much +higher than what can be set via the options menu. The setup program +allows a larger range of values to be set. + +However, setting very high sensitivity values causes the game to exit +when accessing the options menu under Vanilla Doom. Because Chocolate +Doom aims to emulate Vanilla Doom as closely as possible, it does the +same thing. + +One solution to the problem is to set a lower mouse sensitivity. +Alternatively, all of the settings in the options menu can be +controlled through Doom's key bindings anyway: + + End game: F7 + Messages on/off: F8 + Graphic detail high/low: F5 + Screen size smaller/larger: -/+ + Sound volume menu: F4 + +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +== Game exits with "Savegame buffer overrun" when saving the game == + +If you are playing on a particularly large level, it is possible that +when you save the game, the game will quit with the message "Savegame +buffer overrun". + +Vanilla Doom has a limited size memory bufferthat it uses for saving +games. If you are playing on a large level, the buffer may be too +small for the entire savegame to fit. Chocolate Doom allows the limit +to be disabled: in the setup tool, go to the "compatibility" menu and +disable the "Vanilla savegame limit" option. + +If this error happens to you, your game has not been lost! A file +named temp.dsg is saved; rename this to doomsav0.dsg to make it appear +in the first slot in the "load game" menu. (On Unix systems, you will +need to look in the .chocolate-doom/savegames directory in your home +directory) + +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +== Game ends suddenly when recording a demo == + +If you are recording a very long demo, the game may exit suddenly. +Vanilla Doom has a limited size memory buffer that it uses to save the +demo into. When the buffer is full, the game exits. You can tell if +this happens, as the demo file will be around 131,072 bytes in size. + +You can work around this by using the -maxdemo command line parameter +to specify a larger buffer size. Alternatively, the limit can be +disabled: in the setup tool, go to the compatibility menu and disable +the "Vanilla demo limit" option. + +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +== Game exits with a message about "visplanes" == + +The game may exit with one of these messages: + + R_FindPlane: no more visplanes + R_DrawPlanes: visplane overflow (129) + +This is known as the "visplane overflow" limit and is one of the most +well-known Vanilla Doom engine limits. You should only ever experience +this when trying to play an add-on level. The level you are trying to +play is too complex; it was most likely designed to work with a limit +removing source port. + +More information can be found here: + + http://rome.ro/lee_killough/editing/visplane.shtml + -- cgit v1.2.3