MTLStoreAction

The GPU has permission to discard the rendered contents of the attachment at the end of the render pass, replacing them with arbitrary data.

The GPU stores the rendered contents to the texture.

The GPU resolves the multisampled data to one sample per pixel and stores the data to the resolve texture, discarding the multisample data afterwards.

The GPU stores the multisample data to the multisample texture, resolves the data to a sample per pixel, and stores the data to the resolve texture.

The app will specify the store action when it encodes the render pass.

The GPU stores depth data in a sample-position–agnostic representation.