Texture On Slope of World Position Offset

Hello, I’m trying to get my auto landscape material to work with the WPO. This way, using the Z offset in the landscape for collision, I can generate a heightmap based on an auto noise render target which is plugged into the WPO. I want the base color to texture the landscape WPO based on height and Slope. So far my height Lerp works perfectly with the WPO but the slope texture won’t show up like it does with a normal landscape heightmap. In this case when I change the slope bias, it blends with the whole landscape instead of just the slope like I want. Is there a way to read the slope of the world position offset and feed that into the alpha of my Lerp for slope? I Imagine this should be possible considering the height blend works, but documentation is lacking on this specific question.