In most modern HMD/SDKs you set the camera's clear flags to a solid color (like black) and alpha to 0 to view the passthrough feed after enabling it in the SDK's api. However we would like to apply overlay filters to the camera feed to produce interesting effects in a live setting. So far I have been unsuccessful, I have tried to use a render texture and a plane to get the feed on something the renderer sees but this doesn't work as the camera only "sees" black. We are currently using the built-in pipeline, has anyone been able to apply a filter of any kind to passthrough feed? I'm sure it has something to do with how the unity camera is rendering objects but I don't have enough knowledge to be able to write a shader or something that will allow us to manipulate a passthrough feed. Any help would be appreciated!