Jet Grind Radio - Graphical Issues

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 Reported by alforata, Jun 21, 2010

What steps will reproduce the problem?

1: Open nullDC r48
2: Load Jet Grind Radio (Im using De La Jet Set Radio)
3: Go to Training Mode, or watch the demo sequence.

What is the expected output? What do you see instead?
Cars (Trucks and other Vehicles) have a "noise transparency" issue over them, 
no matter from where you are looking or where the player is.

Also, shadows are kinda wrong too. When placing the camera and character on 
some places, a similar error happens on them.

Please refer to the attached screenshots.

What version of the product are you using? What build? What plugins?

I use version: r48

I use the following plugins:

PowerVR Plugin: nulldc PowerVR Direct3D HAL [Jun 12 2010]
GDRom Plugin: Image Reader Plugin by drk||Raziel and Gigaherz [Jun 12 2010]
AICA Plugin: nulldc AICA [Jun 12 2010]
ARM7 Plugin: VBA ARM Cpu Sound Core [Jun 12 2010]
Maple Plugin(s): PuruPuru Imput Plugin v0.1 by Falcon4Ever [Jun 12 2010]
Ext.Device Plugin: nullExtDev [Jun 12 2010]

On what kind of system?
My system specifications are as follows:

Operating System: Windows 7 x86
CPU: Intel Dual Core E2140 Oc'ed to 2.8ghz
Video Card: ATi Radeon HD4760 512mb
Sound Card: Realtek AC97 (Onboard)

Please provide any additional information below:

Well, its a just a graphical issue, nothing that affects gameplay, because that 
just happens on these things...and since the Analog Controller imput is working 
on PuruPuru Plugin, you can even do the graffity stuff too.

Also, Already tried every config or z-mode of the graphical plugin but still 
the same thing happens. Someone may confirm this?

Original issue reported on code.google.com by alforata@gmail.com on 14 Jul 2010 at 1:00

Attachments:

• 4.png
• 1.png
• 3.png
• Untitled-2.png

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I dont know... never had this problem :\. try to get Jet Set Radio or Jet Grind 
Radio iso's and play..

Original comment by thecoolj...@gmail.com on 20 Jul 2010 at 5:58

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It may not happent to you, may be drivers, or who knows, but the game doesnt 
have anything to do (De La Jet Set Radio is just Jet Grind Radio with the 
original Japanese Voices and of course).

Anyone with an ATI Card?...It may be another driver issue.

Original comment by alforata@gmail.com on 23 Jul 2010 at 2:20

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Nope.. i played de la jet set radio now on a Geforce 4MX (witch i want to kill 
for being so old!) on windows 7 32bit and no problems :\

Original comment by thecoolj...@gmail.com on 24 Jul 2010 at 4:54

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This happens on my system as well. I have an HD5830.

Original comment by NeoHuman...@gmail.com on 25 Jul 2010 at 6:20

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Did any of you guys try to mess with any driver related options?
Like disabling Catalyst AI or geometry instancing or any of the Z-Buffer 
related optimizations for example.
I should note that changing some of those options is not available out of the 
box without using a program like ATi Tray Tools and the likes...

Original comment by Mr.PsyMan on 25 Jul 2010 at 7:44

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I haven't tried that, however now that you mention it I'll try it soon and see 
what happens.

Original comment by NeoHuman...@gmail.com on 31 Jul 2010 at 8:52

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Yes, I already tried messing with all what I could on the drivers using ATi 
Tray Tools, but no results here...Oh well its nothing that makes the game 
unplayable so...

We're fuck'd and we'll have to live with this...lol.

Original comment by alforata@gmail.com on 3 Aug 2010 at 10:48

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Okay, it seems that this bug affects ati dx10 cards with new(er) drivers. 
There's a fix, but has some other bad side effects (kills compatibility for 
sm2.0b cards like ATI X700 when some other specific options are used).

For those wanting to test, open ps_hlsl.fx and add 
color=round(color*255)/255;

after line 203 (it should contain clip(s.uv.z); )

Original comment by drkIIRaziel on 21 Aug 2010 at 2:44

• Changed state: Started

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That fixed the weird dithering effect on the parked cars for me. I assume the 
shadows are a separate issue as they have remained unchanged.

Original comment by NeoHuman...@gmail.com on 21 Aug 2010 at 4:16

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Yeah, the shadows are probably Z-related stuff -- They aren't effected by Z 
mode ? where does the problem happen ?

Original comment by drkIIRaziel on 21 Aug 2010 at 4:20

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The problem happens on all shadows, generally more towards the edges of the 
screen than the center but it can happen anywhere.

D24FS8 — Blocky artifacting distributed sporadically depending on player 
position and camera angle

D24S8+FPE — Same as D24FS8. If there is any difference in the severity of the 
artifacting I can't notice it

D24S8 Mode 1 — Seems to get rid of the blocky artifacting but introduces an 
alternate problem where shadows look like they're being continually squashed 
and stretched. They warp around and often render at a large offset from the 
object casting the shadow. A big mess, pretty much.

D24S8 Mode 2 — No artifacting and has minimal amounts of the 
squash/stretch/warp/offset issues from Mode 1. Has problems with removing 
chunks of shadows from the rendering pipeline (for lack of a better term) 
before they've gone fully off-screen. Conversely, some shadows don't pop in 
until they're around the edge of the screen. Most of what pops in around the 
edges doesn't seem to actually belong there and seems like it's just mirroring 
parts of the shadows next to it.

Original comment by NeoHuman...@gmail.com on 21 Aug 2010 at 6:12

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Original comment by drkIIRaziel on 20 Oct 2010 at 10:58

• Added labels: emu-pvr, emu-pvr-limits

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 Fix isn't working for Ecco the Dolphin. Radeon HD 5770 1Gb

Original comment by x.ran...@gmail.com on 19 Oct 2011 at 9:24