Help with UV's

[lizGYM66]

I've manually un-wrapped my object for UV's however when I apply a ramp to it the scale is way off. My scene units are in the default CM's. I'm not that great with UV's. so don't know whether this is a UV issue or an Arnold issue.

[peter_horvath]

The IPR window has a debug shading mode ( icon), where you can verify the UVs of the object. Right click on the icon and select UV.