Bahamut Lagoon Graphical Glitch?

Esturk · Post by **Esturk** » Mon Feb 21, 2005 5:47 pm

I've been playing Bahamut Lagoon on Zsnes recently, using DeJap's latest patch. Anyways, sometimes during battle, the graphics will get all messed up. Reloading the ROM fixes the problem until it happens again. It seems to happen randomly, but has been happening more often.

Here's my ROM info and a screenshot of what it looks like. I'm also using the Feb 10th WIP. This bug doesn't seem to occur in 1.42 as far as I've seen.

File: Bahamut Lagoon Header: Yes
BAHAMUT LAGOON ENG V TYPE:NORMAL
INTERLEAVED:No BANK:HI CHKSUM:OK
VIDEO:NTSC CRC32:48922837

Post by **Nach** » Mon Feb 21, 2005 7:29 pm

Please post info for the unpatched ROM.

Esturk · Post by **Esturk** » Mon Feb 21, 2005 11:32 pm

Here is the unpatched ROM info Nach.

File: Bahamut Lagoon (J).smc Header: Yes
Bahamut Lagoon TYPE:NORMAL
INTERLEAVED:No BANK:Hi CHKSUM:OK
VIDEO:NTSC CRC32:1B83C440

Joe Camacho · Post by **Joe Camacho** » Mon Feb 21, 2005 11:41 pm

I thought that the patch was responsable for some glitches, are you using the latest patch? also, don't change Byuu's or the ship's name.

Post by **Nach** » Mon Feb 21, 2005 11:44 pm

Are you using the copier or emulator patch?

Esturk · Post by **Esturk** » Mon Feb 21, 2005 11:45 pm

I'm using the emulator patch. And I did rename Byuu but not the ship.

Post by **Agozer** » Tue Feb 22, 2005 12:02 am

I've never seen this kind of glitching in Bahamut Lagoon before. are you sure the rom image isn't hax0red?

Esturk · Post by **Esturk** » Tue Feb 22, 2005 12:09 am

I'm pretty sure it's not hacked. I patch all roms myself.

Post by **Nach** » Tue Feb 22, 2005 12:13 am

The ROM is fine, try the copier patch.

Post by **pagefault** » Tue Feb 22, 2005 12:13 am

Hrm, can you provide a SRAM of somewhere near that or maybe even a savestate, using the unpatched rom to see if it still happens?

Esturk · Post by **Esturk** » Tue Feb 22, 2005 12:15 am

Alright pagefault, I'll try playing it without the patch and see if it happens again.

kevman · Post by **kevman** » Tue Feb 22, 2005 12:18 am

I found this on my HD:

Dated 2002, the image is. So its OLD.

The ROM is OK... And I have no idea what triggers it. Sorry, its been years.

Esturk · Post by **Esturk** » Tue Feb 22, 2005 12:30 am

Ah yes, that's it kevman.

Well I played through a level of Granbelos Fortress where it has happened to me before and it didn't happen.:p This time I played with the Japanese ROM. Like I said, it doesn't always happen every battle. Sometime it doesn't happen for a few battles. I think it may be triggered my something like kevman said, but damned if I know what it is!

I can tell you that it happened a LOT on Persona's Ship in Chapter 12 - The Spy Operation. Maybe 7 or 8 times before I finished the battle. That is where I took the screenshot. Unfortunately I am now saved in Chapter 13, and I cannot do the Chapter 12 battle again.

Next time it occurs, I'll make a save-state immediately and post it.

Post by **Nach** » Tue Feb 22, 2005 12:36 am

Also rewind immediatly after and make a save state of that too.

Esturk · Post by **Esturk** » Wed Feb 23, 2005 1:08 am

I've got a save-state of the glitching in action. The only problem is that there's nowhere to upload it here on the board.

ipher · Post by **ipher** » Wed Feb 23, 2005 1:35 am

Esturk wrote:I've got a save-state of the glitching in action. The only problem is that there's nowhere to upload it here on the board.

E-Mail it to ipher1@gmail.com if possible.

Tomato · Post by **Tomato** » Wed Feb 23, 2005 2:34 am

I remember running into this on rare occasion when me and DF worked on BL, but I don't remember if it was related to the patch or not. I do think it's related to opening/closing the main menu (during map stuff) faster than should be allowed.

Esturk · Post by **Esturk** » Wed Feb 23, 2005 2:51 am

Yeah, it does seem to happen very occasionally Tomato. I went through 2 chapters without it happening once.

Tomato · Post by **Tomato** » Wed Feb 23, 2005 3:00 am

Really? That's more often than I encountered it, I had to play through the game A LOT, upwards of 10 times, and I maybe ran into it once every few games on average.

Oblivion · Post by **Oblivion** » Wed Feb 23, 2005 3:03 am

There was a certain level, near the middle of the game, I think one that was in a cave, that glitches a lot. I think on one playthrough I got the glitch about 3 times. I was using the emulator patch, and apparently I hardpatched it somewhere along the way.

Post by **grinvader** » Wed Feb 23, 2005 4:52 am

I also remember experiencing this a LOT (like 15 times per map). But that's only because I rewinded to before the bug and moved elsewhere to 'cancel' the bug.
It's like the 'luck manipulation' in re-records. Slight changes in input make the emulation go different ways.

But it usually came back after a few turns. This information might help...

ipher · Post by **ipher** » Wed Feb 23, 2005 12:43 pm

savestate