struct Input_ {
    float4 position_ : POSITION;
    float3 normal_ : NORMAL;
    float4 color_ : DIFFUSE;
    float2 coord_ : TEXCOORD0;
};

struct Output_ {
    float4 projected_ : POSITION;
    float3 normal_ : TEXCOORD0;
    float3 incident_ : TEXCOORD1;
    float2 coord_ : TEXCOORD2;
    float4 position_ : TEXCOORD3;
};

Output_ main(
    in Input_ _in,
    uniform float4x4 mvp,
    uniform float4x4 mvi,
    uniform float4x4 mv,
    uniform float3 light/*,
    uniform float4 camera*/
) {
    Output_ _out;

    _out.projected_ = mul(mvp, _in.position_);
    _out.position_ = _in.position_;

    _out.incident_ = normalize(mul(mvi, float4(mul(mv, _in.position_).xyz, 0)));
    //_out.incident_ = camera - _in.position_;

    _out.normal_ = normalize(_in.normal_);
    _out.coord_ = _in.coord_;

    return _out;
}