Smoothing groups on hard surfaces

Lukewarm

I'm having problems trying to get rid of a hard edge on my gladius sword i have just made. This is a 11,776 poly blade, turbosmoothed 3 times and i've added swift loops across the blade to keep its shape but i can't seem to smooth it out with smooth groups, I don't know how to fix it, is there a better way to go about smoothing it?


This is the hard edge with 3 swift loops added across the blade

musashidan

Smoothing groups are generally used with polygonal meshes. Your mesh is a sub-d mesh. You use control/in-line edges to control the smoothing. The reason there is a crease there is because the control edges are so tightly spaced. You can spread them and still maintain the sharp corner. Post an image of the non-subd wireframe. You probably don't need so much topology for such a simple shape.