[Haskell-cafe] Re : Defining Cg, HLSL style vectors in Haskell

[minh thu]

> [snip]
> If you're doing matrix transformations, you might also like to consider
> using separate PositionN and DirectionN types instead of VecN to make use of
> the type system to catch some math bugs but I haven't looked into this
> myself yet so I don't know whether this would be practical or not.
>

Indeed, not only bug catching : actually, some operations on points,
vectors and normals have to be done differently.

Thu

> Best regards,
> Brian.