inline read onlyDepth16:DepthStencilFormat = 5
inline read onlyDepth24Stencil8:DepthStencilFormat = 3
inline read onlyDepth32Stencil8:DepthStencilFormat = 4
inline read onlyDepthAutoStencilAuto:DepthStencilFormat = 2
inline read onlyDepthOnly:DepthStencilFormat = 1
inline read onlyNoDepthAndStencil:DepthStencilFormat = 0