I see a new option in the mesh importer to turn off tangents, it doesn’t appear to make any difference to anything when I do, so is it safe to do so, what are they for? It seems to make the final file much smaller so I’d like to be able to if they aren’t used for anything I’m doing.
Sounds like it has to do with curves, perhaps animation curves?
No, I think it’s for bump mapped shaders, but is that all?
If your shader uses tangents (Bump map etc.) you need them, otherwise they can be turned off to save file size.
This is great with that and the mesh compression my web files are nearly half the size. Good work Unity 