Ok, here is my tutorial so far (the last bit is not done yet but the tricky part is all written up):
Note: I am assuming here that texplorer/tpf tools actually works with rev685 if all DLCs are properly extracted with DLC Editor 2. Still have to run a few tests on that.
This is a guide that describes how to install MEHEM with texture mods.
This guide may change, depending on changes in MEHEM or TPF/DDS Tools and Texploree.
In principle this uide should work for any DLC mod + texures but I only tested it with MEHEM.
Current version of the guide based on:
MEHEM v0.5
ME3Explorer revision 685
1. Find your ME3 install directory
a) Open ME3Explorer
b ) In the menu bar, go to "Options -> Show known paths"
c) Note down the directory under "Game Path". In this guide, this directory will from now on be referenced as <Your ME3 Install Dir>.
2. Properly vanilla your game
a) Uninstall any mods that came with uninstallers
b ) Use Origin or the Windows Control Panel to uninstall ME3
c) In Windows Explorer, navigate to and delete <Your ME3 Install Dir>
d) Use Origin to install ME3 and its DLCs
e) In Origin, right click on your ME3 game icon and click "View Game Details"
f) Scroll down to see all DLC
g) Install all the DLCs you own by clicking the "Install" button on the right (note, while one DLC is installing, these buttons will change to "add to download queue", so click that)
h) Once all DLCs are installed, go back to you game screen in Origin, right click on the ME3 Symbol and click "Search for Updates". Repeat this step until you see a message that no updates have been found.
i) In the Origins menu bar, go to "Origins -> Origin Settings" and uncheck the box in front of "automatically keep my games up to date"
You now have a properly vanilla Mass Effect 3 installation
Remember, at this point, you never want to update your game through Origin again. After installing mods, Origin may ask you o update the game when starting it. ALWAYS choose "Play without update". DO NOT update your game from here on out.
3. OPTIONAL: Make a backup of your vanilla game folder
a) In Windows Explorer, navigate to <Your ME3 Install Dir>
b ) Copy the entire directory and paste it somewhere as a backup
c) Now, when you want to vanilla your game, you can just delete <Your ME3 Install Dir> and copy your backup in this place.
NEVER touch your backup. If you are unsure whether or not your backup is still clean, vanilla your game via Origin, as described in step 2.
4. Extract all your DLCs
a) In the ME3Explorer menu bar, go to "Developer Tools -> DLC -> DLCEditor 2"
b ) Go to "File -> Open SFAR"
c) In the opening dialogue window, navigate to "<Your ME3 Install Dir>\BioGame\DLC"
d) Here you will see folders for all your DLCs (they all begin with "DLC_"). Open the first one and open the subfolder "CookedPCConsole", now open Default.sfar
e) Go to "File -> Unpack SFAR"
f) In the upcoming dialogue box, add "; bik" to the list of files to extract, click ok and wait for the DLC to be extracted (this may take a while). A message, saying "Done" will pop up when the extraction is finished. Do not do anything until you see the message.
g) Go to "File -> Open SFAR" and open the same Default.sfar file as in step 4b/c again
h) In the main window of DLC Editor 2, click the plus sign to the left of the listing of your sfar file to expand the tree view, then click the plus sign next to "FileEntries" and highlight the listing for "PCConsoleTOC.bin"
i) Go to "File -> Extract selected"
j) In the upcoming save dialogue window, go to the main directory of your DLC (e.g. for the extended cut, this is the folder "<Your ME3 Install Dir>\BioGame\DLC\DLC_CON_END") and save the file "PCConsoleTOC.bin" there.
k) Back in the DLC Editor 2 window, extend the treeview again and highlight the file "PCConsoleTOC.bin again, just like in step 4h
l) With the PCConsoleTOC.bin still highlighted, go to "File -> Delete Selected"
m) Repeat steps 4b to 4l for all your BioWare DLCs
5. Install MEHEM
a) Run the MEHEM installer and follow the instructions
6. OPTIONAL: Install any other DLC mods you may have
a) If you have other mods, read their documentation carefully and make sure, they are compatible with the current version of MEHEM and with texture mods
b ) IF your other mods are compatible, install them now, according to their instructions.
7. Delete any previous Treescan data
a) In Windows Explorer, navigate to the directory of your ME3Explorer and to the subfolder where your ME3Explorer.exe can be found (if you have an svn directory, it will be in "<Your ME3Explorer SVN Dir>\ME3Explorer\bin\Debug")
b ) Open the "exec" subfolder in this directory. Look for a file, named "me3tree.bin". If you do not see this file, all is good. If you do see this file, delete it.
8. Run Texplorer treescan
a) In the ME3Explorer menu bar, open "Tools -> Texture Tools -> Texplorer"
… to be continued but from this point on, it should basically be the normals first time setup for texplorer and then using tpf tools.
If rev685 does not work, we even have to add this step before extracting DLCs with DLC Editor 2:
3.2. Extract the textures from all your DLC
a) Open ME3Explorer and in the meu bar, use "Tools -> DLC Explorer"
b ) Click the "Open" button in the upper left corner of the DLC Explorer window
c) In the opening dialogue window, navigate to "<Your ME3 Install Dir>\BioGame\DLC"
d) Here you will see folders for all your DLCs (they all begin with "DLC_"). Open the first one and open the subfolder "CookedPCConsole", now open Default.sfar
e) In the main left hand wondow of DLC Eplorer, you will now see a folder structure. Open this folder structure until you find the subfolder "CookedPCConsole" and open it.
f) Scroll down until you find the file "Textures.tfc"
g) Rightclick on "Textures.tfc" and choose "Extract" from the context menu
h) Save "textures.tfc" into the same folder where you openend "Default.sfar" in step 4d
i) In DLC Explorer, right click on "Textures.tfc" agan and choose "Delete" from the context menu. Confirm that you want to delete "Textures.tfc" from the DLC.
j) Click the "Save" button in the upper left corner of the DLC Explorer window.
k) Repeat steps 3.2b - 3.2j for all your DLCs
l) close DLC Explore
So yea, this is pretty horrible but it's what we got to do atm.