I'm having an issue with my tilemap renderer, with small maps (like 4040 tiles) it works fine but with maps that have 400400 tiles the framerate becomes really slow when I try to move the camera.

Here are my rendering methods

/// Renders the map
void Map::Map::render(sf::RenderWindow& window)
{
    for (auto c : m_tiles)
    {
        for (Tile& tile : c)
        {
            m_renderer.render(tile);
        }
    }
}

And for the TileRenderer

void Renderer::TileRenderer::render(const Map::Tile& tile) const
{
    try
    {
        if (m_previousType != tile.getType())
            m_sprite.setTextureRect(getTypeTextureRect(tile.getType()));

        m_sprite.setPosition(tile.getAbsolutePosition());

        m_renderWindow.draw(m_sprite);
        m_previousType = tile.getType();
    }
    catch (ETileTypeUndefined e)
    {
        Logger::getInstance().log(e.what());
    }
}

Any idea to solve that poor framerate ?

I'm having an issue with my tilemap renderer, with small maps (like 4040 tiles) it works fine but with maps that have 400400 tiles the framerate becomes really slow when I try to move the camera.

Here are my rendering methods

/// Renders the map
void Map::Map::render(sf::RenderWindow& window)
{
    for (auto c : m_tiles)
    {
        for (Tile& tile : c)
        {
            m_renderer.render(tile);
        }
    }
}

And for the TileRenderer

void Renderer::TileRenderer::render(const Map::Tile& tile) const
{
    try
    {
        if (m_previousType != tile.getType())
            m_sprite.setTextureRect(getTypeTextureRect(tile.getType()));

        m_sprite.setPosition(tile.getAbsolutePosition());

        m_renderWindow.draw(m_sprite);
        m_previousType = tile.getType();
    }
    catch (ETileTypeUndefined e)
    {
        Logger::getInstance().log(e.what());
    }
}

Any idea to solve that poor framerate ? It doesn't seems to be a memory issue. Visual Studio debugger tells me that external code spend a lot of time in the renderer's render function (calls to sf::RenderWindow::draw(sf::Drawable) I guess).