Ping-pong rendering between two buffers

[casey]

I have a shader effect that requires rendering to buffer A, and then using buffer A as input to render to buffer B, swapping B and A, and then repeating the process multiple times until finally rendering to the display.

Is it possible to do this with Bevy? It's fine if I have to drop into wgpu or something in order to do some manual configuration of the rendering pipeline, although it would be nice to avoid that if possible.

Thank you!