Thanks for playing! And thanks for understand that it's a katana and not just a sword lol, I think you're the first one so far. Thanks for the advice about it's range.
About the effect, well, I guess most I can do is off/on. You see, I didn't exactly, ahem, write it, I just took the shader code somewhere in the net and I don't really know how it works, and messing with alpha just makes it brake entirely lmao