Hi,

What is the difference between:

D3D11_SRV_DIMENSION_BUFFER

and

D3D11_SRV_DIMENSION_BUFFEREX?

What is an "extended" buffer in d3d11?

I don't have any experience with this, but I would guess that when using D3D11_SRV_DIMENSION_BUFFER you will use the D3D11_BUFFER_SRV.
When using the D3D11_SRV_DIMENSION_BUFFEREX you use the D3D11_BUFFEREX_SRV.

Like I said I don't use those things so I don't know if it is correct, but after some googling this is what I think.

Normally extended means that the struct doesn't only has the members of the normal struct, but also a few more.