Module upload 

Structs

RafxTransferUpload

A state machine and associated buffers/synchronization primitives to simplify uploading resources to the GPU via a transfer queue, and then submitting a memory barrier to the graphics queue

RafxUpload

Convenience struct that allows accumulating writes into a staging buffer and commands to execute on the staging buffer. This allows for batching uploading resources.

RafxUploadBuffer

RafxUploadBufferPool

Enums

RafxTransferUploadState

RafxUploadError

RafxUploadState