struct Input_ {
    float4 position_ : POSITION;
};

struct Output_ {
    float4 position_ : POSITION;
    float4 color_ : COLOR0;
};

Output_ main(
    in Input_ input,
    uniform float4x4 mvp
) {
    Output_ output;
    output.position_ = mul(mvp, input.position_);
    output.color_ = float4(1.0f, 0.0f, 0.0f, 1.0f);
    return output;
}