// Constructor
Image2d::Image2d(...){
    /* ... */
    // Define texture coords
    std::vector<float> vTextureCoords;
    vTextureCoords.push_back(0.0f);
    vTextureCoords.push_back(1.0f);

    vTextureCoords.push_back(0.0f);
    vTextureCoords.push_back(0.0f);

    vTextureCoords.push_back(1.0f);
    vTextureCoords.push_back(1.0f);

    vTextureCoords.push_back(1.0f);
    vTextureCoords.push_back(0.0f);

    /* ... */

    glGenVertexArrays(1, &_vao);
    glBindVertexArray(_vao);

    _pShaderManager->SetAttribute(A_COLOR, COLOR_WHITE);

    glGenBuffers(1, &_vboPosition);
    glBindBuffer(GL_ARRAY_BUFFER, _vboPosition);
    glBufferData(GL_ARRAY_BUFFER, vVertexPos.size()*sizeof(vVertexPos[0]), &vVertexPos[0], GL_STATIC_DRAW);
    _pShaderManager->EnableAttribute(A_POSITION);

    glGenBuffers(1, &_vboTexture);
    glBindBuffer(GL_ARRAY_BUFFER, _vboTexture);
    glBufferData(GL_ARRAY_BUFFER, vTextureCoords.size()*sizeof(vTextureCoords[0]), &vTextureCoords[0], GL_STATIC_DRAW);
    _pShaderManager->EnableAttribute(A_TEXTURE_COORD0);

    glGenBuffers(1, &_vboIndices);
    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _vboIndices);
    glBufferData(GL_ELEMENT_ARRAY_BUFFER, vIndices.size()*sizeof(vIndices[0]), &vIndices[0], GL_STATIC_DRAW);

    glBindVertexArray(0);

    _pShaderManager->DisableAttribute(A_POSITION);
    _pShaderManager->DisableAttribute(A_TEXTURE_COORD0);

    // After array is unbound
    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
    glBindBuffer(GL_ARRAY_BUFFER, 0);
}

void Image2d::Render(){
    if (_version == 1){
        _pShaderManager->SetTexture(0, U_TEXTURE0_SAMPLER_2D, _textureInfo.uTextureId);

        glBindVertexArray(_vao);
        glDrawElements(GL_TRIANGLE_STRIP, 4, GL_UNSIGNED_BYTE, nullptr);
        glBindVertexArray(0);
    }
}