#include "common.hlsli"
#include "shared\wmark.hlsli"

vf_spot main(v_vert v)
{
    vf_spot o;

    float3 N = unpack_normal(v.N);
    float4 P = wmark_shift(v.P, N);
    o.hpos = mul(m_VP, P); // xform, input in world coords
    o.tc0 = unpack_tc_base(v.uv, v.T.w, v.B.w); // copy tc
    o.color = calc_spot(o.tc1, o.tc2, P, N); // just hemisphere

    return o;
}