For more information about render nodes and their attributes, see About shading networks.
For a detailed description of the material node attributes, see About surface materials, About displacement material, About volumetric materials.
You can adjust one node at a time (for example if you want to adjust an individual attribute while using IPR), or you can adjust several nodes at the same time using the Attribute Editor, Attribute Spread Sheet, the Rendering Flags window, or the Channel Box.
To set an attribute for one node
You can select the node in the Hypershade, in the Node Editor, or in the Outliner. Click in the status line to display the Attribute Editor; or, select Windows > Attribute Editor.
If you are creating a shader graph, you can adjust your render node attributes in the Hypershade Property Editor. By default, the Property Editor displays render nodes in a template view that is optimized for shading workflows, and has a simpler layout that lists only the most commonly used attributes. You can switch to the Attribute Editor view by clicking in the Property Editor.
To set attributes for multiple rendering nodes in the Attribute Spreadsheet
All the attributes in the column update with the new value.
To set attributes for nodes in the Rendering Flags window
The attributes for these items are listed in the right panel where you can change and set them, much like in the Channel Box.
Once you change an attribute for a selected item, the heading changes color in the list, reminding you of the change.
You can also set an attribute for multiple nodes using the Rendering Flags window or the Channel Box.