Author Topic: FB Neo Bugs Reports  (Read 158681 times)

Offline Stifu

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Re: FB Neo Bugs Reports
« Reply #300 on: November 29, 2020, 09:38:21 AM »
Trying Eeekk!, characters seem to be displayed behind every element you pass through, like stairs. You can still see the characters, but their colors are altered.
But in some videos I see online, that's not the case, and characters are displayed above background elements: https://youtu.be/e-W1mqA-B0M
I'm not sure which behavior is correct. I couldn't find a video of the original arcade cab.
« Last Edit: November 29, 2020, 09:43:58 AM by Stifu »

Offline dink

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Re: FB Neo Bugs Reports
« Reply #301 on: November 29, 2020, 09:59:54 AM »
Stifu,
Eeekk! on EPOS hw uses a blitter where pri mixing is not really possible (at least, not in hw), which is why you get weird colors when your character goes over/under objects.  I'm pretty sure that was the intended effect by the developer.

Eeekk! on Pac-Man HW is tile-based, so the main sprite is always above everything.

The Eeekk! video you linked is that of the Pac-Man HW variety.

best regards,
- dink

Offline JoelH

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Re: FB Neo Bugs Reports
« Reply #302 on: November 30, 2020, 02:25:53 PM »
Got some major graphics glitches playing Riot over libretro in the form of disappearing sprites on Round 2.

Offline Neville

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Re: FB Neo Bugs Reports
« Reply #303 on: November 30, 2020, 03:58:30 PM »
I've found a "thing" in the FBN menus... not a bug, more like a typo. According to Wikipedia Sega Megadrive is wrong, the proper spelling is Sega Mega Drive. Or Genesis.

See https://en.wikipedia.org/wiki/Sega_Genesis

This affects the hardware filter settings, and likely nothing else.

Offline Stifu

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Re: FB Neo Bugs Reports
« Reply #304 on: November 30, 2020, 05:09:02 PM »
Eeekk! on EPOS hw uses a blitter where pri mixing is not really possible (at least, not in hw), which is why you get weird colors when your character goes over/under objects.  I'm pretty sure that was the intended effect by the developer.

Eeekk! on Pac-Man HW is tile-based, so the main sprite is always above everything.

The Eeekk! video you linked is that of the Pac-Man HW variety.

Hey dink, thanks for confirming.

According to Wikipedia Sega Megadrive is wrong, the proper spelling is Sega Mega Drive.

True. That's how it's written right on the console.

Offline dink

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Re: FB Neo Bugs Reports
« Reply #305 on: November 30, 2020, 08:27:53 PM »
Got some major graphics glitches playing Riot over libretro in the form of disappearing sprites on Round 2.

JoelH,
Ahh, Riot is one of my favorites, so it needs to get fixed asap :)
Can you please post a screenshot?  I'm at round 2, and everything looks fine, so maybe I'm not at the right spot.
Are you using the rom "riot" or a different version?

best regards,
- dink
« Last Edit: December 01, 2020, 12:57:42 AM by dink »

Offline dink

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Re: FB Neo Bugs Reports
« Reply #306 on: December 01, 2020, 01:27:34 AM »
re: Riot,  I fixed a little timing issue that fixed a video glitch in the 2nd boss cutscene - please give the new exe a try.

Offline JoelH

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Re: FB Neo Bugs Reports
« Reply #307 on: December 02, 2020, 07:54:30 PM »
JoelH,
Ahh, Riot is one of my favorites, so it needs to get fixed asap :)
Can you please post a screenshot?  I'm at round 2, and everything looks fine, so maybe I'm not at the right spot.
Are you using the rom "riot" or a different version?

best regards,
- dink

Yeah I'm running the rom riot (the only one). Looks like its fixed though so I don't know what happened. Shrug.

Offline dink

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Re: FB Neo Bugs Reports
« Reply #308 on: December 03, 2020, 01:02:02 AM »
JoelH I think the timing fix mentioned above fixed it.  Thanks for letting us know!

best regards,
- dink

Offline Igor_Arabe

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Re: FB Neo Bugs Reports
« Reply #309 on: December 09, 2020, 01:58:18 PM »
in <...>/src/burn/drv/megadrive/d_megadrive.cpp

crc wrong, is the same of unhacked rom.

Quote
// shadow of the beast (Hack, Spanish)
// https://www.romhacking.net/translations/3668/
static struct BurnRomInfo md_beastsRomDesc[] = {
   { "shadow of the beast (Hack, Spanish).bin", 1048576, 0xbd385c27, BRF_PRG | SEGA_MD_ROM_LOAD16_WORD_SWAP | SEGA_MD_ROM_OFFS_000000  },
};


the correct is this (w/ ips+checksum fix):
Quote
// shadow of the beast (Hack, Spanish)
// https://www.romhacking.net/translations/3668/
static struct BurnRomInfo md_beastsRomDesc[] = {
   { "shadow of the beast (Hack, Spanish).bin", 1048576, 0xde6b78e7, BRF_PRG | SEGA_MD_ROM_LOAD16_WORD_SWAP | SEGA_MD_ROM_OFFS_000000  },
};




Offline Stifu

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Re: FB Neo Bugs Reports
« Reply #310 on: December 09, 2020, 04:40:23 PM »
I bet those are not FBN bugs but game bugs (or oddities), but here goes: in Wily Tower, the "3" character (displayed on the score or on the bottom right bonus counter) has blue and red on it, for some reason, like a mini French flag. Also, there seems to be some minor tile issues on the title letter, like on the "T" where some parts that should be yellow are purple.

Offline charles32k

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Re: FB Neo Bugs Reports
« Reply #311 on: December 09, 2020, 06:36:20 PM »
in <...>/src/burn/drv/megadrive/d_megadrive.cpp

crc wrong, is the same of unhacked rom.


the correct is this (w/ ips+checksum fix):

can you sendme your fix?

Offline charles32k

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Re: FB Neo Bugs Reports
« Reply #312 on: December 09, 2020, 06:56:03 PM »
you use roms no intro, it will be fixed so that there is no confusion

Offline Igor_Arabe

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Re: FB Neo Bugs Reports
« Reply #313 on: December 09, 2020, 07:20:55 PM »
Well i use the rom mentioned on "read-me / informations" of patch (the correct to do). Some roms is no-intro, some else goodgen .
Hmm i remembered an identical case in NES... i will check later.

Thanks charles32k.

Offline dink

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Re: FB Neo Bugs Reports
« Reply #314 on: December 09, 2020, 09:05:19 PM »
I bet those are not FBN bugs but game bugs (or oddities), but here goes: in Wily Tower, the "3" character (displayed on the score or on the bottom right bonus counter) has blue and red on it, for some reason, like a mini French flag. Also, there seems to be some minor tile issues on the title letter, like on the "T" where some parts that should be yellow are purple.

Stifu,
The problem has actually been verified to be on the pcb as well, so I guess it was a bit of an oversight at irem back in the day.  Perhaps they were in a rush to get it released, who knows :)

best regards,
- dink