"Create a photorealistic image a transformative backpack that can turn into a tent. The image should showcase the backpack in its compact form, with visual cues indicating its ability to expand into a tent. Include details like adjustable straps, durable material, and hidden compartments for tent poles and fabric. The finish should be detailed and realistic, resembling a photograph. The backpack should be depicted in an outdoor setting to suggest its practical use in camping and hiking."  --s 50