Creating a storage buffer

When we want to not only read data from a buffer inside shaders, but we would also like to store data in it, we need to use storage buffers. These are created with a VK_BUFFER_USAGE_STORAGE_BUFFER_BIT usage.

How to do it...

1. Take the handle of a logical device and store it in a variable of type VkPhysicalDevice named physical_device.
2. Create a variable of type VkBuffer named storage_buffer in which a handle of a created buffer will be stored.
3. Create a buffer of a desired size and usage using the logical_device variable. Specified usage must contain at least a VK_BUFFER_USAGE_STORAGE_BUFFER_BIT flag. Store the created handle in the storage_buffer variable (refer to the Creating a buffer recipe from Chapter 4, Resources and Memory).
4. Allocate a memory object with a VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT property (or use a range of an existing memory object) and bind it to the created buffer (refer to the Allocating and binding memory object to a buffer recipe from Chapter 4...