I think the only way around this is to build the mirror mesh using separate tris. This will up the vert count somewhat but I really can't see another way around the prob, ATM. Especially when clipping tris that only have a single vert below the minimum Y as you then have to build a quad. e.g.
This is something I'd need to do for the mesh effect I mentioned, also - and then there's the UVs to consider :/
Not sure how fast all this would end up being but I think it's worth a go just for experimental reasons. :)
; |-------/ ; | / ; | / ; | / ; ------|---/------- min Y ; | / ; | / ; |/
This is something I'd need to do for the mesh effect I mentioned, also - and then there's the UVs to consider :/
Not sure how fast all this would end up being but I think it's worth a go just for experimental reasons. :)