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

struct Output_ {
    float4 projected_ : POSITION;
    float4 color_ : COLOR0;

    float4 light0_ : TEXCOORD0;
    float4 light1_ : TEXCOORD1;
    float4 light2_ : TEXCOORD2;
    float3 light3_ : TEXCOORD3;

    float4 texcoord0_ : TEXCOORD4;
    float4 texcoord1_ : TEXCOORD5;
    float4 texcoord2_ : TEXCOORD6;
    float4 texcoord3_ : TEXCOORD7;
};

Output_ main(
    in Input_ input,

    uniform float4x4 mvp,
    uniform float4x4 mv,

    uniform float4x4 lv0,
    uniform float4x4 lv1,
    uniform float4x4 lv2,
    uniform float4x4 lv3,

    uniform float4x4 t0,
    uniform float4x4 t1,
    uniform float4x4 t2,
    uniform float4x4 t3
) {
    Output_ output;
    output.projected_ = mul(mvp, input.position_);
    output.color_ = input.color_;

    float3 normal = mul(mv, float4(input.normal_, 0)).xyz;

    float3 object = mul(mv, input.position_).xyz;
    float3 light[4];

    light[0] = normalize(mul(lv0, float4(0, 0, 0, 1)).xyz - object);
    light[1] = normalize(mul(lv1, float4(0, 0, 0, 1)).xyz - object);
    light[2] = normalize(mul(lv2, float4(0, 0, 0, 1)).xyz - object);
    light[3] = normalize(mul(lv3, float4(0, 0, 0, 1)).xyz - object);

    output.light0_ = float4(light[0], normal.x);
    output.light1_ = float4(light[1], normal.y);
    output.light2_ = float4(light[2], normal.z);
    output.light3_ = light[3];

    output.texcoord0_ = mul(t0, input.position_);
    output.texcoord1_ = mul(t1, input.position_);
    output.texcoord2_ = mul(t2, input.position_);
    output.texcoord3_ = mul(t3, input.position_);

    return output;
}