struct VertexInTexture {
    float4 position [[ attribute((0)) ]];
    float2 textureCoordinates [[ attribute(1) ]];
};

struct VertexOutTexture {
    float4 position [[ position ]];
    float2 textureCoordinates;
};

vertex VertexOutTexture vertex_shader_texture(const VertexInTexture vertexIn [[ stage_in ]]) {
    VertexOutTexture vertexOut;
    vertexOut.position = vertexIn.position;
    vertexOut.textureCoordinates = vertexIn.textureCoordinates;
    return vertexOut;
}

fragment half4 fragment_shader_texture(VertexOutTexture vertexIn [[ stage_in ]],
                                       sampler sampler2d [[ sampler(0) ]],
                                       texture2d<float> texture [[ texture((0)) ]]) {
    float4 color = texture.sample(sampler2d, vertexIn.textureCoordinates);
    return half4(color.r, color.g, color.b, 1);
}