Sets the stencil operation to use when a stencil test passes but the depth test fails with the given depth stencil state for faces facing away from the rendering camera (backfaces).
Various operations can be used that either keep the old stencil buffer value, overwrites it with the current one, increments, decrements, inverts or sets it to zero and so forth.

DX11 SET BACKFACE STENCIL DEPTH FAIL OPERATION depthStencilState, stencilOperation

depthStencilState

Dword
The depth stencil state to set the stencil operation of in the event of backface stencil test pass and depth test failure.

stencilOperation

Dword
The stencil operation to set. Must be one of the D3D11_STENCIL_OP_XXX constants.

This function does not return a value.

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