A frame resource: the depth of the scene, rendered by a prepass before the scene, so that it is
also available to passes running before the scene and while it renders. List it in
CameraFrameEffect#requires instead of FRAMERESOURCE_DEPTH when the depth is
needed that early. The prepass renders the opaque geometry an additional time.
A frame resource: the depth of the scene, rendered by a prepass before the scene, so that it is also available to passes running before the scene and while it renders. List it in CameraFrameEffect#requires instead of FRAMERESOURCE_DEPTH when the depth is needed that early. The prepass renders the opaque geometry an additional time.