Rotate skybox at runtime, or in the editor

I have a cubemap skybox with a clear illumination source (see photo), which I’d like to rotate relative to my level for more dramatic lighting angles. I could rotate the level geometry, but it’s much nicer to edit when the xyz axes match the overall organization of the level (it’s fairly rectilinear).

I found this one-liner but it does nothing:

RenderSettings.skybox.SetFloat(“Rotation”, 90f);

is there something I’m missing?

Doesn’t look like the mobile skybox (at least the one I’m looking at on this end) supports rotation. Right-click on the Inspector tab to put it into DEBUG mode and see what the Floats are on the Material itself.

The normal skybox does support rotation, but on my version the property is "_Rotation" and I just confirmed it works by the above one-liner, with the underscore. Just setting "Rotation" does not do anything.

Ahh, you know I didn’t even consider what Shader I was using as it was selected by the asset I purchased. Problem solved, rotation achieved. The debug trick was helpful too.