I tried to use an environment lookup texture for my environment map, everything goes fine for sharp reflection, but when i tried to filter out the environment map to get a blurrly effect, there will be a sharp edge at the "head to end" part of the texture, how can i fix this artifact??
(As I got some idea in PRman is that the "txmake" command can convert texture to sth like "periodic" type so that this problem can be eliminated.)
Thanks in advance!!