Smoothing Groups in Hammer

[zeOx]

I'm trying to use the smoothing groups function in Hammer, but it doesn't seem to work. I choose the faces I want to smooth (in this case the sides on a cylinder), press any given number in the group-window, and compile only to see no result what so ever.

anyone know what I'm doing wrong?

[Defrag]

I noticed the same thing and just gave up on using smoothing groups. :/

[Campaignjunkie]

Randomly does / doesn't work for me. I just use "-smooth" in vrad.

[ReNo]

I think the lightmap grids have to line up between the faces in a smoothing group, and even then I don't think they always work. I used them a fair bit when I was working on Echo and they worked very nicely at times, but as has been said they are far from 100% reliable.

[Steppenwolf]

yea it has to do with the lightmapgrids. i havent played around much with it yet but i believe that when the edge of the lightmap is directly on the edge of the brush the smooting doesnt work