You are using a very old version of the Post Processing package, update to the latest version through the Package Manager.
This error is thrown if there is a shader error, or a shader is missing. Be sure to have all package contents imported and use the latest Post Processing Stack version.
Fog noise or Cloud Shadows show artifacts at the edge where a terrain/object meets the skybox.
This is related to using Temporal Anti-Aliasing with these effects. It requires to modify the PostProcessLayer script, so that fog executes before TAA does. Because of this I can’t provide a configurable solution.
When the camera is perpendicular to a XYZ axis, the sketch projection will appear to morph slightly.
The Fog effect may show artifacts where the skybox and objects meet.
Disable (MSAA) Anti Aliasing in your Quality Settings. MSAA only applies to the screen color, not the underlying depth information, hence there’s a discrepancy.
When using Metal rendering on macOS, you may see the following warning: “Metal: Fragment shader missing texture binding at index X”.
Disable “Metal API Validation” in your Player Settings to resolve this. This warning will be thrown when a shader has an empty texture assigned, but is harmless.