I am using the Arnold Standard Surface and applying a grayscale bump. I would like to use UV coordinate instead of object coordinates.
looks like osl:UVWChannel > OSL:Noise > Bump2D > StandSurface. ('normal' input slot)
works great and the noise "sticks" to my geometry.
However, if I apply another coordinate system to my geo, say, a planar projection set to UV3, and change my osl:UVWChannel to 3, my noise disappears from my object.
Am I doing something wrong? If I plug my noise into my base color, changing UV coordinate system works. I feel like it's the Bump2D that doesn't understand coordinate systems other than 1.
BTW I'm using Max2021, Arnold 220.127.116.11.