How to do it...

To create a glow effect with a Shader Graph, follow these steps:

1. In the Project window, create a new PBR Shader Graph named glowShaderGraph by going to Create | Shader | PBR Graph.
2. In the Project window, create a new material named m_glow by going to Create | Material.
3. With m_glow selected, in the Inspector window, set its Shader property to glowShaderGraph by going to graphs | glowShaderGraph.

4. We now need a 3D mesh object in the scene that uses m_glow. While we could just use a 3D Cube again, it's more fun to add a low-polygon textured character to the scene. For this recipe, we've used the free Unity Asset Store character pack called Fantasy Mushroom Mon(ster) from AmusedArt. Once the package has been added, drag Mushroom Monster Prefab into the scene from the Project window folder; that is, amusedART | Mushroom Monster | Prefab: