Creating a descriptor set layout

Descriptor sets gather many resources (descriptors) in one object. They are later bound to a pipeline to establish an interface between our application and the shaders. But for the hardware to know what resources are grouped in a set, how many resources of each type there are, and what their order is, we need to create a descriptor set layout.

How to do it...

1. Take the handle of a logical device and assign it to a variable of type VkDevice named logical_device.
2. Create a vector variable with elements of type VkDescriptorSetLayoutBinding and call it bindings.
3. For each resource you want to create and assign later to a given descriptor set, add an element to the bindings vector. Use the following values for members of each new element:
   • The selected index of the given resource within a descriptor set for binding.
   • Desired type of a given resource for descriptorType
   • The number of resources of a specified type accessed through an array inside the shader (or 1 if the given...