Optional sizeThe size of the buffer in bytes.
Optional mappedIf true creates the buffer in an already mapped state, allowing
GPUBuffer#getMappedRange to be called immediately. It is valid to set
GPUBufferDescriptor#mappedAtCreation to true even if GPUBufferDescriptor#usage
does not contain GPUBufferUsage#MAP_READ or GPUBufferUsage#MAP_WRITE. This can be
used to set the buffer's initial data.
Guarantees that even if the buffer creation eventually fails, it will still appear as if the
mapped range can be written/read to until it is unmapped.
Optional labelThe initial value of GPUObjectBase#label|GPUObjectBase.label.
Optional usageAllowed usages for the GPU buffer as an array of buffer usages names
Parameters used to create a Buffer.