Destroying a framebuffer

When a framebuffer is no longer used by the pending commands and we don't need it anymore, we can destroy it.

How to do it...

1. Initialize a variable of type VkDevice named logical_device with the handle of a logical device on which the framebuffer was created.
2. Take the framebuffer's handle and store it in a variable of type VkFramebuffer named framebuffer.
3. Make the following call: vkDestroyFramebuffer( logical_device, framebuffer, nullptr ), for which we provide the logical_device and framebuffer variables and a nullptr value.
4. For safety reasons, store a VK_NULL_HANDLE value in the framebuffer variable.

How it works...

The framebuffer is destroyed with the vkDestroyFramebuffer() function call. However, before we can destroy it, we must make sure that commands referencing the given framebuffer are no longer executed on the hardware.

The following code destroys a framebuffer:

if( VK_NULL_HANDLE != framebuffer ) { 
  vkDestroyFramebuffer( logical_device, framebuffer, nullptr...