Why Do Some Mods cause Buildings to Disappear?

[Wasteland Geographic]

Why do some mods, such as Hangman Alley Interiors, cause the buildings and landscapes to disappear? The buildings and landscape geometry still exist- you can walk through doorways and floors still hold you up, but visually you see through the world.

Thank you.

 

[damanding]

Sounds like broken previs. That mod removes some of the existing closed buildings and replaces them with open buildings. This process breaks precombines and previs which in turn impacts performance in that area as well. I've used that particular mod in the past and didn't notice previs issues, so my guess is that another mod which also impacts precombines and previs in the general area is causing the conflict.....or see below

Most likely you have one mod that regenerated precombines and previs which you are using with a mod that breaks them without a patch between the two. For example if I use the Beantown Interiors mod along with the regenerated precombines and previs files for Beantown, while also using a mod that breaks precombines such as Goodneighbor Apartment, then I get the exact same phenomenon you're talking about when in the Goodneighbor Apartment.

Unfortunately you have two choices when using mods that edit exterior worldspaces, either let them all break precombines/previs and avoid the ones that regenerate it for just one mod (this gives you terrible performance) OR you have to learn how to regenerate the precombines/previs for all of the exterior worldspace editing mods yourself with the Creation Kit. Dealing with precombines/previs is a hard conflict that cannot be fixed by changed load orders, it requires patching.

Tutorial on rebuilding precombines/previs

To view this content we will need your consent to set third party cookies.
For more detailed information, see our cookies page.

Accept third party cookies

 

[Wasteland Geographic]

Thank you for taking the time to explain this and posting a tutorial. You are a high quality Earthling.

 

[CptCOOTS]

Thank you for taking the time to explain this and posting a tutorial. You are a high quality Earthling.

 

[damanding]

It just happens to be a topic I know a fair amount about. :D