Want a tutorial on how to apply xdelta patch on Just Cause 3

[SAM2712]

Originally Posted by felice2011

mikey26 ... more than anything else, in this part of threads I would be interested in understanding the concept, method, and the various applications used by "FitGirl" to compress overly well a game.

Yeah Mostly people wants to know about fitgirl work

[felice2011]

Originally Posted by SAM2712

Yeah Mostly people wants to know about fitgirl work

Unfortunately I think that here in the forum not there is no one who knows in detail the method of work of the fitgirl compression, so as you can explain through a tutorial the various steps and components used, conversely someone would already intervened in detail on the issue.

[ChronoCross]

Thats right felice and let me add every game have a diferent method of compression lossy and lossless combined. Also look quantum game by fitgirl. Size 28gb. But you need 107gb !! I suspect they use reflate. And all the world watching us beause all the tools go out from here fileforums rules!!

[felice2011]

Yes Chrono, you're right most of the tools and ideas come from here, mine was just a curiosity in deepening the study and the mechanics of compression used by FitGirl.
I examined and extracted the installer of their work, they use compressors and decompressors to part with FA support, installation works full in windows temp, temporary files are extracted by FA and then decompressed to the original files through bat commands.

[mikey26]

alot of fitgirls repacks involves unpacking all large pack files.there are so many ways to unpack files but it also depends on the games encryption on those pack files.there are tools to check these encryptions as you have seen in quickbms but unpacking is the easy part it getting it back to the same as the original.

on most of her repacks as you see the files unpack and you get fooled by the normal temp files created of precomp and srep and the normal files created by inno setup files but in the middle of the unpacking of all these thousands of files a second set of tmp files are extracted and no they are not extracted into the install dir they are in the user account temp dir these are the files that are going to put the thousands of files the way they supposed to be just like the original files and correct md5's.yes there are a few bat files and few txt files and some of her own files she created to get the correct md5's and pack the into the correct type of pack files with the correct encryption so the game can work.

so there is no real shortcut into doing those repacks unless you a programmer that can make these custom files to repack with the correct md5's.there are a few tools out that will help with a few games but not every game is the same or uses the same encryption on pack files.

and good luck to your harddrives unpacking and repacking those type of repacks especially your ssd drives just to save a few gb's.i am sure some of you wonder how she got to repacks so small.unpacking repacking,duplicating merging sorting of files as seen in her repacks while the installer is going and the 5 hours to install a 15gb game to a mechanical drive.and the famous line it looks stuck just leave it alone it working.

so its not that easy to do and i doubt any converters here are willing to go through that tortune.

[Razor12911]

Originally Posted by ChronoCross

Thats right felice and let me add every game have a diferent method of compression lossy and lossless combined. Also look quantum game by fitgirl. Size 28gb. But you need 107gb !! I suspect they use reflate. And all the world watching us beause all the tools go out from here fileforums rules!!

I don't think reflate is effective on that game, got 32GB anyways with reflate+srep+lzma

[felice2011]

The method generally used is this (precomp+msc+srep), as he said Razor do not using reflation.

Examined the game RIDE compressed installation of 8.3GB, 25GB uncompressed.

The workbook is created ... "C:\Users\Name\AppData\Local\Temp" through installing InnoSetup.

Inside the Game installation folder during extraction, it creates a temporary folder (temp) with most of of the game files converted to *.DDS (The DDS files are in raster image format used by Microsoft DirectX to store textures and environments.
These files can be stored uncompressed and compressed pixel formats. They are sometimes used for storing backgrounds for the Windows desktop or backgrounds, as well as for texturing models of video game unit).

In mid-installation, the files *.dds, are reconverted in the original structure of the game files and copied/moved in their original path of game.

For those who are curious or interested i posted the temporary working folder with files and methods used for the complete installation.

Attachment 14568

[Carldric Clement]

Originally Posted by ChronoCross

This take a lot of time.

I like this style compress. But it looks like carefully about this step's.