A barebones PBR Renderer For Nodes.io from SimonHarrisCo blog post
It was made using the Nodes 1.0.0-beta.2 so if you are on a lower version than that the project might need updating.
Once you have Nodes downloaded from Nodes.io you can open this folder from the dashboard to load the graph
This graph is a companion to a blog post written on https://simonharris.co