pub trait GpuStoragePlanar {
    type PackedType;
    type PlanarType;

    fn bind_group(
        &self,
        render_device: &bevy::render::renderer::RenderDevice,
        layout: &bevy::render::render_resource::BindGroupLayout,
    ) -> bevy::render::render_resource::BindGroup;

    fn bind_group_layout(
        &self,
        render_device: &bevy::render::renderer::RenderDevice,
        read_only: bool,
    ) -> bevy::render::render_resource::BindGroupLayout;

    fn ordered_field_names(&self) -> &'static [&'static str];

    fn prepare(
        render_device: &bevy::render::renderer::RenderDevice,
        planar: &Self::PlanarType,
    ) -> Self;
}

// TODO: texture bindings derive macro