Arnold bump2d is designed for bump map(B/W map), now I've some normal map, it could not work correctly with bump2d. I've read the user guide, it tells that Arnold could support XSI Normal Map2/3, but Normal Map3 node output vector as result, I don't see how to use it, connect it to bump port of material doesn't make it.
Anyone happened to meet the problem before? Any help would be thanks!