Hacking Gravity Rush native framebuffer size.

[LooneyElsa]

Hi.
I've been inspecting a few eboot executable files in IDA Pro (thanks @KabutoKun ) recently and found a way to increase Gravity Rush resolution from 720x408 to 960x544. The only downside is dialogue/comic book cutscenes being bugged. So if you've finished the game and/or don't care about it then this is definitely something you'll enjoy.

Screenshots:
Before

Spoiler

After

Spoiler

Dialogue bug:

Spoiler

Steps to get it working(you have to have access to patch or decrypted ( ͡° ͜ʖ ͡°) game files:

1. Backup original eboot.bin.
2. Open eboot.bin with HxD or visit https://hexed.it/
   
3. Search for value 5FF434701A905FF4CC70 , replace with 5FF470701A905FF40870 (make sure file has the same size after editing)

FAQ:

Spoiler

Q: I have a gamecart, what do?
A: by idumpvitastuff: You could just dump eboot.bin, edit it and then put edited eboot into ux0:/patch/TITLEID that would save more space... Oh also dont forget to put sce_sys/param.sfo into the same patch folder otherwise it will say "file is currupt"

Comparison screenshots are welcome!
I hope someone found this helpful. If you're interested in Vita GPU shenanigans visit https://www.reddit.com/r/vitahacks/comments/637np7/problematic_psp_game_fixes_force_unleashed/ , look for readyyourawoos posts.

Cheers.

 

[Bu2d85]

Does this have any effect on frame rate?

 

[LooneyElsa]

Does this have any effect on frame rate?

I did not notice major fps dips. Just like on stock resolution it will dip if Kat is attacked by many projectiles at once.
Game already uses slightly higher clock rate I wouldn't expect a lot of fps difference. Just like in Borderlands 2, while decreasing resolution, we didn't gain a whole lot of extra frames during gameplay.
https://gbatemp.net/threads/borderlands-2-on-vita-ini-file.442215/page-5
But I will say that it needs more testing.

Comparison screenshots are welcome!

 

[InquisitionImplied]

What a nice game to choose for the first resolution hack. I'll test out the framerates and make a video on it!

 

[Nad45]

Thanks, i'll try that

 

[SuperDan]

Very Nice ~!~

 

[InquisitionImplied]

I can't get the ux0atch/PCSA00011 trick to work even with the param.sfo, since it gives me a C2-12828-2, so I had to use a dumped copy, but here are some comparison screenshots. The outline effect doesn't display properly in chapter 5 where there normally is no white outline. In general, the changes look very minimal, but there is clearly a difference in the UI. Is it just because the only value edit didn't change everything and there's still more that can be improved?

Top - Original
Bottom - Eboot edit
Full Gallery - (8 sets of images)

Spoiler

Example of the outline during the snow area

Spoiler

 

[LooneyElsa]

I can't get the ux0atch/PCSA00011 trick to work even with the param.sfo, since it gives me a C2-12828-2, so I had to use a dumped copy, but here are some comparison screenshots. The outline effect doesn't display properly in chapter 5 where there normally is no white outline. In general, the changes look very minimal, but there is clearly a difference in the UI. Is it just because the only value edit didn't change everything and there's still more that can be improved?

Top - Original
Bottom - Eboot edit
Full Gallery - (8 sets of images)

Spoiler

View attachment 91460 View attachment 91459

View attachment 91462 View attachment 91461View attachment 91466 View attachment 91467

Example of the outline during the snow area

Spoiler

View attachment 91464 View attachment 91463

Try 5FF4347101605FF4CC71 > 5FF4707101605FF40871 with original patch applied as well.

Edit: Here's a little something, not like you'll get any more improvements besides these 2.
I used patch 1 and 2 for the screenshots.
https://puu.sh/wuBPK/8da94cac79.txt

 

[frangarcj]

Can you share eboot.bin offsets? It would be possible to make a plugin that way

 

[LooneyElsa]

Can you share eboot.bin offsets? It would be possible to make a plugin that way

I'd say this needs more testing but here you go.
First patch 5FF4347101605FF4CC71 > 5FF4707101605FF40871
offsets: 8974 to 897D
Second one(from op) 5FF434701A905FF4CC70 > 5FF470701A905FF40870
offsets: 2284 to 228D

 

[InquisitionImplied]

Try 5FF4347101605FF4CC71 > 5FF4707101605FF40871 with original patch applied as well.

I can't spot any difference with the second value changed

Old edit vs. New edit

Spoiler

Original vs. New Edit

Spoiler

EDIT: Added the missing native comparison shots

 

[SuperDan]

Can you share eboot.bin offsets? It would be possible to make a plugin that way

sounds great !!

 

[jiahao1889]

Hi.
I've been inspecting a few eboot executable files in IDA Pro (thanks @KabutoKun ) recently and found a way to increase Gravity Rush resolution from 720x408 to 960x544. The only downside is dialogue/comic book cutscenes being bugged. So if you've finished the game and/or don't care about it then this is definitely something you'll enjoy.

Screenshots:
Before

Spoiler

After

Spoiler

Dialogue bug:

Spoiler

Steps to get it working(you have to have access to patch or decrypted ( ͡° ͜ʖ ͡°) game files:

1. Backup original eboot.bin.
2. Open eboot.bin with HxD or visit https://hexed.it/
   
3. Search for value 5FF434701A905FF4CC70 , replace with 5FF470701A905FF40870 (make sure file has the same size after editing)

FAQ:

Spoiler

Q: I have a gamecart, what do?
A: by idumpvitastuff: You could just dump eboot.bin, edit it and then put edited eboot into ux0:/patch/TITLEID that would save more space... Oh also dont forget to put sce_sys/param.sfo into the same patch folder otherwise it will say "file is currupt"

Comparison screenshots are welcome!
I hope someone found this helpful. If you're interested in Vita GPU shenanigans visit https://www.reddit.com/r/vitahacks/comments/637np7/problematic_psp_game_fixes_force_unleashed/ , look for readyyourawoos posts.

Cheers.

great work here. i've tried something like this on yurunonaikuni(aka nights of azure) before, but failed to locate the offset.
cos this game at version japanese 1.0, its resolution something like 960x544.
but after the 1.02 patch(also for english and chinese version 1.0), changes it down to like 720x408 or below(full screen of aliasing).
i think there's some tricky things i didn't found, so is there some hint for searching the resolution config? T_T
i can provide the two eboot.bin here
https://www.dropbox.com/s/6e59vu1w0htkv6e/eboot_1.0.bin?dl=0
https://www.dropbox.com/s/vfql0j965dku8od/eboot_1.04.bin?dl=0

 

[InquisitionImplied]

great work here. i've tried something like this on yurunonaikuni(aka nights of azure) before, but failed to locate the offset.
cos this game at version japanese 1.0, its resolution something like 960x544.
but after the 1.02 patch(also for english and chinese version 1.0), changes it down to like 720x408 or below(full screen of aliasing).
i think there's some tricky things i didn't found, so is there some hint for searching the resolution config? T_T
i can provide the two eboot.bin here
https://www.dropbox.com/s/6e59vu1w0htkv6e/eboot_1.0.bin?dl=0
https://www.dropbox.com/s/vfql0j965dku8od/eboot_1.04.bin?dl=0

I only played the 1.04 patch of Nights of Azure and it looked like it used a dynamic resolution. Did version 1.00 perform better than 1.04?

 

[jiahao1889]

I only played the 1.04 patch of Nights of Azure and it looked like it used a dynamic resolution. Did version 1.00 perform better than 1.04?

yeah... it makes a big difference
i've tried replace chinese resources into the original jpn 1.0 game, and make these screenshots.
but i failed when dealing with these block fonts. T_T

 

[LooneyElsa]

yeah... it makes a big difference
i've tried replace chinese resources into the original jpn 1.0 game, and make these screenshots.
but i failed when dealing with these block fonts. T_T

View attachment 95043 View attachment 95044 View attachment 95045 View attachment 95046

Hi.
Look for different resolution values.
For instance after a quick look I found 640x480, weird but that's all I have for now. Might be a coincidence but I'd try swapping those with resolution of same float. 640/480=1.33333333333
Of course these are offsets with original eboot cut by first 1000 bytes.
Also if these don't work try checking booleans near 960x544 values movs.w 0x3c0/0x220

Cheers.

 

[TheStig02]

Hi people! Has anyone tried to increase the buffer in NFS MW?
I can not do it at ...

 

[jiahao1889]

Hi.
Look for different resolution values.
For instance after a quick look I found 640x480, weird but that's all I have for now. Might be a coincidence but I'd try swapping those with resolution of same float. 640/480=1.33333333333
Of course these are offsets with original eboot cut by first 1000 bytes.
Also if these don't work try checking booleans near 960x544 values movs.w 0x3c0/0x220

Cheers.

seems not this one...in both 1.0 and 1.04, these values both appears at same position

i've found something different in two files, like this:

first one for 1.0 and second for 1.04

i've tried replace the extra codes with mov r0, r0 in second eboot.bin, but run as same as before...

maybe u guys could provide more possible resolutions for psv so i could search for more?

 

[Electry]

After the first patch (in OP) only FB res changes, game still renders at 720x408.
Check github . com/Electry/VitaGrafix/commit/5f8be0aef5671e4213e8ab93bf7920dfa7a35578#diff-4eea93503c06fd20d48043534611e469R389
(I can't post links yet)
I added all references I could find (maybe some of the changes aren't necessary), but now it renders at 960x544.
I also haven't played the game really, only made sure it was booting, so there might be some issues.

The offsets are the same for all game regions. (0x284 is seg000:81000284 or 00000284 in IDA).

EDIT: Dialogs are still glitched, and I'm getting this weird ghost image in some areas.

 

[Chostyn]

Hey, I'm having trouble installing this... When I edit the eboot file, the game just doesn't start. What could it be? ANy idea?