struct VSInput
{
    float4 position : POSITION;
    float2 coord : TEXCOORD0;
};

cbuffer ConstantBuffer : register(b0)
{
    float4x4 mvp;
    float opacity;
};

struct PSInput
{
    float4 position : SV_POSITION;
    float2 coord : TEXCOORD0;
};

Texture2D tex : register(t0);
SamplerState samp : register(s0);

PSInput VS_Texture(VSInput input)
{
    PSInput result;
    result.position = mul(mvp, input.position);
    result.coord = input.coord;
    return result;
}

float4 PS_Texture(PSInput input) : SV_TARGET
{
    return tex.Sample(samp, input.coord) * opacity;
}