Destroying a buffer

When a buffer is no longer used, we should destroy it.

How to do it...

1. Take the handle of a logical device and store it in a variable of type VkDevice named logical_device.
2. Store the buffer's handle in a variable of type VkBuffer named buffer.
3. Call vkDestroyBuffer( logical_device, buffer, nullptr ) and provide the handle of the logical device, the handle of the buffer, and a nullptr value.
4. For safety reasons, assign the VK_NULL_HANDLE value to the buffer variable.

How it works...

Buffers are destroyed using the vkDestroyBuffer() function like this:

if( VK_NULL_HANDLE != buffer ) { 
  vkDestroyBuffer( logical_device, buffer, nullptr ); 
  buffer = VK_NULL_HANDLE; 
}

logical_device is a variable representing the logical device on which the buffer was created. When we destroy a buffer, we assign an empty handle to the variable representing this buffer, so we won't try to destroy the same resource twice.

See also

• Creating a buffer view recipe in this chapter