Unity Products:Amplify Shader Editor/Post Processing Stack
Post Processing Stack
Amplify Shader Editor allows the user to create post-processing effects compatible with Unity's Post-Processing Stack V2. In order to start creating your shaders you'll first need to import the AmplifyShaderEditor > Plugins > EditorResources > Templates > PPStackTemplates Unity Package. This will enable the Post-Processing template to be enable for selection on your Node Properties shader type.
From there you can create your shader as any other regular ASE shader.