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given a unit normal (nx,ny,nz) to a surface, the two tangent vectors

are: s = (-ny+nz, nz-nz, -nx+ny) and t = n x s (with s, t normalized).

now, if nx=ny=nz, then s & t become trivial.

how do i find these tangent vectors for this special case?

thanks alot.

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# Tangent vectors

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