VkBuffer objects created with the
VK_BUFFER_CREATE_SPARSE_RESIDENCY_BIT bit allow the buffer to be made
only partially resident. Partially resident VkBuffer objects are
allocated and bound identically to VkBuffer objects using only the
VK_BUFFER_CREATE_SPARSE_BINDING_BIT feature. The only difference is
the ability for some regions of the buffer to be unbound during device use.