Asset files, as in triplefox's comment above, are a very different thing from the OA's mention of keeping the object files from nightly builds and anything else

Asset files, as in triplefox's comment above, are a very different thing from the OA's mention of keeping the object files from nightly builds and anything else they think of to throw into the repository. For program source control, throwing in a bunch of unnecessary files is dysfunctional. Assets are, by definition, not unnecessary files.