I don't know what you mean. You can go throuigh a few animations and change how broad the guy's chest looks, and it will look broader. You don't even have to change that many, just a few idle animations ones when the guy is stationary enough for people are likely to pay attention. During things like dodging or blocking it won't matter much anyway because the body is in motion and proportions are temporarily distorted, as it happens in real life. That's the solution I've adopted.
Bookmarks