Help with .fx code

[enzoDs]

    VS.Position = float3(1, 2, 3);

how i can "unpack" VS.Position?

 

I need make this: (but in .fx language)

VsPosition = {1,2,3}
x, y, z = unpack( VsPosition )

 

[DiSaMe]

I'm not familiar with HLSL syntax (never did any programming in HLSL), but based on https://docs.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-per-component-math#the-vector-type, it should look something like this:

float x = VS.Position.x;
float y = VS.Position.y;
float z = VS.Position.z;

If it's unpacking syntax that you want (assigning to multiple variables from a single vector at once), I don't think HLSL has it, but you could write a function with one in vector argument and three out scalar arguments for each component.