void Drawable::draw() const
{
    glBindVertexArray(vboptr);
    if (indexed)
    {
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, eboptr);
        glDrawElements(getDrawMode(), indices.size(), GL_UNSIGNED_INT, NULL);
    }
    else
    {
        glDrawArrays(getDrawMode(), 0, verts.size());
    }
}