Full MVS library bug report #65
Comments
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There is one thing probably you miss: |
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even in 304 there are vertical lines appearing where they shouldn't be and misalignement. many of these lines are appearing way inside the 304 area too. in quite a few games it was obvious that they were meant to be displayed in 304 so I didn't even add them to the list (both modes were always tested). you can set mame to 320 for any of these games and see that the vertical lines are not there in the image, character portraits, hud etc are all perfectly centred. 320 mode just makes what is wrong visible and points to the problem, it all carries over to how the 304 image is displayed too. what is happening in the left and right 8px really does matter! check the two samurai showdown v screens, the wooden looking border around the characters is right shifted, showing a vertical line on the left side even when set to 304. or take the kof 97 screens, you can see that in 304 mode the border for the character portrait is clipping into the 8px border. |
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I am not sure if this is related but in Pulstar I noticed stationary enemy sprites were sometimes shifted a pixel away from the background where they should be, and that the shift depended on the scrolling. It looked as if the sprite movement was not synced perfectly with the background scrolling. For example, a gun moved with the background as it should but the motion was one pixel offset. |
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samurai showdown 4- missing section in intro is over a larger area than real hardware. health bar shifted. |
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Thank you for testing this, im sure it will be very usefull once furrtek gets some time to look at the bugs |
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Force to recognize that these sprite errors, horizontal shofts / vertical lines etc are a reality compared to real Neogeo system... the question is : why these issues exist in a FPGA configuartion? |
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Because bugs exist. We have typos when we write, sometimes we intend to write something yet write something else, sometimes we think we understand something and write the code accordingly but we didn’t... |
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OK jotego ! ;) |
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Just for adding another source to one case of this report:
Here is a video, it happens in second 29. Tested with 200325 release. |
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Most of the issues related to the sprite layer / fix layer shift bug (vertical lines, gfx 1 pixel outside of borders...) should be fixed with 77a2a8e. |
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Hey blackfrancis, any chance to check if the issues you found were fixed with the latest version of the core? Thanks! |
All tests were done with NeoGeo_20191205.rbf and the darksoft rom set with the stock bios.
All results compared against footage of real hardware where available and MAME to check that what is being seen on the core is not present elsewhere.
SPRITE ERRORS
sprites either missing, staying on screen too long or misplaced
world heroes perfect- chunk of sprite missing in intro
https://i.imgur.com/c1vUh8D.jpg
real bout fatal fury- sprite stays on screen in intro
https://i.imgur.com/YIhNTCe.jpg
king of the monsters- diagonals on joystick sprite shifted.
https://i.imgur.com/idWnT7P.jpg
kof 2002- sprite stays on screen, overlapped by new sprites when they appear.
https://i.imgur.com/8S8WbR6.jpg
power spikes 2- sprite lingers on screen in intro, too fast to capture.
HORIZONTAL SHIFT / VERTICAL LINES
areas where sprites are a pixel to the left or right of where they should be. areas on the left side of the screen or sprite where a vertical line is present, can be either solid coloured, shows the background layer or seems to mirror the right most side of whatever is being shown. have not stated that sprites are left or right of where they should be as I don't know which part of the screen is actually causing the misalignment
2020-baseball- green vertical line on left of screen.
https://i.imgur.com/jetjdIX.jpg
aero fighters 2- circled vertical line in intro. vertical line of left of screen.
https://i.imgur.com/1z5I6lJ.jpg
https://i.imgur.com/DOl2B51.jpg
aggressors of dark combat- health gauge and border not aligned properly.
https://i.imgur.com/1j6t5es.jpg
chibi marukocham deluxe quiz- grey vertical line on left of title screen
https://i.imgur.com/hgUZSZu.jpg
baseball stars 2- "1p" selection box and possible other assets shifted
https://i.imgur.com/yKLeN6z.jpg
garou mark of the wolves- several vertical lines on left side in intro. misshapen boxes in second attract sequence. main character portraits in character select screen shifted.
https://i.imgur.com/Tbwmfe1.jpg
https://i.imgur.com/WbDsE5B.jpg
https://i.imgur.com/Z52jDUp.jpg
kof 94- character portraits shifted
https://i.imgur.com/ceMWlcI.jpg
kof 95-character portraits shifted
https://i.imgur.com/6RTC3MZ.jpg
kof 96-"in oaska" stage intro horizontal line.
https://i.imgur.com/ViZjPNq.jpg
kof 97- character portraits and border shifted, goes into overscan area
https://i.imgur.com/OnBpyXm.jpg
https://i.imgur.com/SufiwH2.jpg
kof 98- circled green line in intro
https://i.imgur.com/5K7atNP.jpg
kof 99- health bar and character portrait shifted
https://i.imgur.com/sMu7eVE.jpg
https://i.imgur.com/ode0eoV.jpg
kof 2001- character portrait spacing. vertical line of left of screen.
https://i.imgur.com/TibH6vA.jpg
https://i.imgur.com/6deAY95.jpg
kof 2002- character portraits shifted
https://i.imgur.com/1bvucOC.jpg
kof 2003- grey vertical line of left of screen.
https://i.imgur.com/oNJctiH.jpg
king of the monsters- vertical lines on character select screen.
https://i.imgur.com/idWnT7P.jpg
king of the monsters 2- vertical lines on character select screen
https://i.imgur.com/aTMOWEg.jpg
kizuna encounter- vertical line in intro
https://i.imgur.com/sOLId4u.jpg
last blade 2- line not straight in intro
https://i.imgur.com/9yODgvp.jpg
magical drop 3- blue vertical line of left of screen.
https://i.imgur.com/v7FfmhE.jpg
matrimelee- shifted character portraits
https://i.imgur.com/q02Go6V.jpg
metal slug- vertical line of left of screen.
https://i.imgur.com/VPOvAnm.jpg
money puzzle exchanger- vertical line of left of screen.
https://i.imgur.com/DwQ85XN.jpg
neo turf masters- lines in shot bars, vertical line of left of screen.
https://i.imgur.com/HWslVwe.jpg
https://i.imgur.com/2LvDH86.jpg
https://i.imgur.com/zWKUGh5.jpg
puzzle de pon- grey line left of screen in intro.
https://i.imgur.com/ldfODyb.jpg
rage of the dragons- character portrait spacing, left side clipped
https://i.imgur.com/WfLx4rp.jpg
ragnagard- character portrait border incorrect
https://i.imgur.com/zW2WRhj.jpg
real bout fatal fury special- vertical line of left of screen.
https://i.imgur.com/AHTWogB.jpg
real bout fatal fury special 2- character portrait spacing
https://i.imgur.com/sR8uyPM.jpg
riding hero- see screenshots.
https://i.imgur.com/h12AGx3.jpg
https://i.imgur.com/sRHacOL.jpg
https://i.imgur.com/EqiBcP8.jpg
samurai showdown v- 304 res shows shifted border to right, clipping right side of screen and showing extra line on left side.
https://i.imgur.com/S56YIhS.jpg
https://i.imgur.com/XDDSm8b.jpg
samurai showdown v special- see above but with character portrait border between matches
https://i.imgur.com/9YMCTAj.jpg
snk vs capcom- intro lines, see pics.
https://i.imgur.com/j12gRqC.jpg
https://i.imgur.com/JtX9Cqc.jpg
https://i.imgur.com/E4kN8WQ.jpg
soccer brawl- "select field" box one pixel to right
https://i.imgur.com/PY5ww3m.jpg
spin master- lines left on screen in intro and gameplay, flickering so hard to photo.
street hoops- character selection spacing
https://i.imgur.com/s5JGe0r.jpg
strikers- variable left side border black line, can be cut into by enemy sprites
https://i.imgur.com/SUvfCtv.jpg
super sidekicks 2- screen spacing
https://i.imgur.com/e2wJdni.jpg
https://i.imgur.com/RMIjgk2.jpg
top layers golf- vertical line of left of screen in intro
https://i.imgur.com/gbGb0qV.jpg
twinkle star sprites- see screenshot
https://i.imgur.com/XFPRoN5.jpg
ultimate 11- title screen one pixel to left
https://i.imgur.com/ALdHjAA.jpg
voltage fighter gowcaizer- character select screen spacing. line on left side.
https://i.imgur.com/zmacngz.jpg
https://i.imgur.com/SBXHVaK.jpg
waku waku 7- various vertical lines on left hand side
https://i.imgur.com/yNt2dNB.jpg
https://i.imgur.com/s5cuEdo.jpg
https://i.imgur.com/5RyQhKj.jpg
https://i.imgur.com/YjYK7Rh.jpg
wind jammers- vertical line of left of screen during play. line in intro, too fast to photo.
https://i.imgur.com/R5DzvUn.jpg
world heroes 2- character portrait shift
https://i.imgur.com/87burP3.jpg
world heroes 2 jet- character portrait shift
https://i.imgur.com/ZtuvkAl.jpg
world heroes perfect- character portrait shift. circled vertical line in speech box.
https://i.imgur.com/BPSj8Lc.jpg
https://i.imgur.com/XVbaHzC.jpg
zupappa- vertical line of left of screen during playsee screen
https://i.imgur.com/EX4GdxF.jpg
AUDIO
needs further investigation against real hardware
art of fighting 2- right side audio grindy sounding?
sengoku 3- audio very crackly in character selection?
snk vs capcom- generally hissy audio?
FLICKERING
these games show flickering white dots between screen transitions eg going from in game to a continue screen or going from the title screen to the character select screen.
power spikes 2
pulstar
riding hero
real bout fatal fury special
soccer brawl
stakes winner
stakes winner 2
street hoops
super spy
ghost pilots
mutation nation
2020 baseball- many flickering horizontal lines during spinning "2020" logo in intro
tecmo world soccer- horizontal flicker on cross bar in intro
kof 2000- flickering white dots at the top of the screen when going to main title screen
kof 2001- flickering white dots at the top of the screen when going to main title screen
last resort- background flickering when shooting enemies, really noticeable in tunnel of first stage. real hardware and mame do not exhibit anywhere near as much flickering.
baseball stars 2- quick black horizontal line across first white screen in intro after bios screen
blazing star- flickering white dots at the top of the screen when going to main title screen. also has general flickering between screen transitions
ninja commando- large amount of sprite flickering and shaking on logo during attract sequence. ground tearing during gameplay. real hardware and mame do not seem to exhibit anywhere near as much flickering in below areas pictured.
https://i.imgur.com/L5CZdt8.jpg
https://i.imgur.com/dYmBfGs.jpg
metal slug 4- sprites flickering in and out of foreground first stage. real hardware and mame do not seem to exhibit anywhere near as much flickering. see bottom right in picture.
https://i.imgur.com/Qu7Yyuc.jpg
top hunter- general flickering of pixels at top of screen, present in real hardware but seems less prevalent.
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