setblendstate & setdepthstencilstate

http://msdn.microsoft.com/en-us/library/windows/desktop/ff476462(v=vs.85).aspx

blendstate

blendfactor

samplemask

SetBlendState()

有这三个参数 第二个的意思是 如果用这俩作为blendstate的参数 D3D11_BLEND_BLEND_FACTOR or D3D11_BLEND_INV_BLEND_FACTOR

就是blendfactor*srccolr.....
http://msdn.microsoft.com/en-us/library/windows/desktop/ff476122(v=vs.85).aspx
从这点进去
http://msdn.microsoft.com/en-us/library/windows/desktop/ff476463(v=vs.85).aspx

SetDepthStencilState()

第二个参数是stencil ref

cgfx->fx

colormask 对应 blendstate RenderTargetWriteMask
http://msdn.microsoft.com/en-us/library/windows/desktop/ff476100(v=vs.85).aspx

typedef enum D3D11_COLOR_WRITE_ENABLE {
D3D11_COLOR_WRITE_ENABLE_RED    = 1,
D3D11_COLOR_WRITE_ENABLE_GREEN  = 2,
D3D11_COLOR_WRITE_ENABLE_BLUE   = 4,
D3D11_COLOR_WRITE_ENABLE_ALPHA  = 8,
D3D11_COLOR_WRITE_ENABLE_ALL    =
( D3D11_COLOR_WRITE_ENABLE_RED | D3D11_COLOR_WRITE_ENABLE_GREEN |
D3D11_COLOR_WRITE_ENABLE_BLUE | D3D11_COLOR_WRITE_ENABLE_ALPHA )
} D3D11_COLOR_WRITE_ENABLE;

0
http://http.developer.nvidia.com/Cg/StencilFunc.html
StencilFunc = int(func) StencilFunc = int3(func, ref, mask)

nvidia