Follow these steps to convert standard shaders in Unity to HDRP (I use Autodesk Interactive)
Select an asset by clicking on it, or you can go into the materials folder – you will see that the shader is set to “Autodesk Interactive” by default.
In a HDRP project you will want to change this by selecting the shader dropdown and selecting HDRP>Autodesk Interactive>Autodesk Interactive
Once selected, scroll down to the “Exposed Properties” section in the inspector.
You will see several texture maps shown as an icon on the right-hand side.
Wherever an image is found, you should select the “Use-Map” checkbox next to each of these.
And that’s it, for most assets it should now be working perfectly for use in HDRP.
If the asset uses transparency, however, just complete the above steps and when selecting the shader, select “AutodeskInteractiveTransparent” and adjust the opacity number as required under exposed properties.
Robot Skeleton 