@Sprunghunt: I think you mean cross product. DOT would give a scalar. @Jocose: I don't recall there being an UP Vector node either, but what sprunghunt suggests at first can work for getting a world up. if you hook up a vector (0,0,1) to a transform node set with its input to world space and its output to tangent space you…
I'm having trouble locating the up vector in UDK I want to use it to mask two materials. Is it named something weird, was it removed, and does it output something I can feed a linear interpolate node? Thanks
ya im pretty sure the last link is exactly what you wanted, but using that in conjunction with the winddirectionandspeed is the most versatile way to use it. kinda a weird name for what it does, i just figured it out by skimming over the material nodes page @ UDN
try the "WindDirectionAndSpeed" node http://udn.epicgames.com/Three/MaterialsCompendium.html#WindDirectionAndSpeed thinking he someone gets the up vector from the WorldPosition, but also in the 2nd expmle in the vid he does the the WindDirectionAndSpeed so he can control the angle. Virtuosic talks about it a bit in this…