struct Vertex {
    float4 pos : POSITION;
    float4 texcoord : TEXCOORD0;
};

struct VSOut {
    float4 pos : SV_POSITION;
    float4 texcoord : TEXCOORD0;
};

cbuffer MatrixBuffer : register(b0) {
    float4x4 gMVP;
};

VSOut MainVS(Vertex v) {
    VSOut o;
    o.pos = mul(gMVP, v.pos);
    o.texcoord = v.texcoord;
    return o;
}

float4 MainPS(VSOut i) : SV_TARGET {
    return float4(1.0f, 0.0f, 0.0f, 1.0f);
}