Fallout 3 mods compatibility

[HonestLiar]

I heard fallout 3 mods are compatible with new vegas, but.. the fallout 3 mods i downloaded and i started with caused my newvegas to crash on the beginning loading screens

[secksegai]

Fallout 3 mods needed to be ported over as there are certain things that need to be accounted for between the two games. In other words, not all the settings are the same thus the majority of FO3 mods need to be adjusted before they're compatible with FONV.

[CarlCorey]

I agree with secksegai in general. There are some FO3 mods which can be brought into NV with little or no effort though. If they are just mesh and/or texture replacements, they can be tried -- they may or may not have the desired effect however. If they have an ESP file, you can load that into FO3Edit and see if they have any dependencies on FO3 or other FO3 mods. If they do, you're s.o.l. for now, if not, you can just change the master from Fallout3.esm to FalloutNV.esm. If it loads without crashing and does what it's supposed to do, make sure to let the original author know that their mod is compatible so they can make an NV release of it. Edited December 4, 2010 by CarlCorey

[HonestLiar]

I agree with secksegai in general. There are some FO3 mods which can be brought into NV with little or no effort though. If they are just mesh and/or texture replacements, they can be tried -- they may or may not have the desired effect however. If they have an ESP file, you can load that into FO3Edit and see if they have any dependencies on FO3 or other FO3 mods. If they do, you're s.o.l. for now, if not, you can just change the master from Fallout3.esm to FalloutNV.esm. If it loads without crashing and does what it's supposed to do, make sure to let the original author know that their mod is compatible so they can make an NV release of it.

how do i change the master file?

[CarlCorey]

how do i change the master file?

1. Make sure that you have your ESP file backed up because this will break it for FO3
   
2. Start FO3Edit, on the list of files to load, right click and "Select None" and then check the one file you want to change
   
3. Once it's loaded, click the "+" next to your mod file, expand the tree and click on File Header
   
4. Make sure that you have your ESP file backed up because this will break it for FO3 :)
   
5. See where it says "Fallout3.esm"? Right click that and "Edit"
   
6. Look at the dialog that forces you stop and read it and be absolutely certain that you have that file backed up
   
7. Change "Fallout3.esm" to "FalloutNV.esm"
   
8. Exit FO3Edit and save the file when it asks you too
   
9. Copy the modified file into your Fallout NV data directory
   
10. Copy your backed up FO3 file back into your Fallout 3 data directory
    
11. Enable the new file in Fallout NV via FOMM or however you do it
    

[HonestLiar]

how do i change the master file?

1. Make sure that you have your ESP file backed up because this will break it for FO3
   
2. Start FO3Edit, on the list of files to load, right click and "Select None" and then check the one file you want to change
   
3. Once it's loaded, click the "+" next to your mod file, expand the tree and click on File Header
   
4. Make sure that you have your ESP file backed up because this will break it for FO3 :)
   
5. See where it says "Fallout3.esm"? Right click that and "Edit"
   
6. Look at the dialog that forces you stop and read it and be absolutely certain that you have that file backed up
   
7. Change "Fallout3.esm" to "FalloutNV.esm"
   
8. Exit FO3Edit and save the file when it asks you too
   
9. Copy the modified file into your Fallout NV data directory
   
10. Copy your backed up FO3 file back into your Fallout 3 data directory
    
11. Enable the new file in Fallout NV via FOMM or however you do it
    

 

thanks! but if it still continues to crash that means that mod is incompatible with new vegas?

[CarlCorey]

thanks! but if it still continues to crash that means that mod is incompatible with new vegas?

With out a doubt. The author of the mod referenced something in FO3 that doesn't carry forward.

[HonestLiar]

oh okay thanks anyways =D

[CarlCorey]

HonestLiar: This was just posted to the nexus moments ago. It may help you. http://www.newvegasnexus.com/downloads/file.php?id=38413 Edited December 5, 2010 by CarlCorey