struct Input_ {
    float2 texcoord_ : TEXCOORD0;
};

struct Output_ {
    half4 color_ : COLOR;
};

Output_ main(
    in Input_ input,
    uniform samplerRECT bottom,
    uniform float width,
    uniform float height
) {
    Output_ output;
    output.color_ = texRECT(bottom, input.texcoord_ * float2(width, height));
    //output.color_ = float4(input.texcoord_, 0, 1);
    return output;
}