Save to Image not working?

[Yaxlat]

I have written the following code:


    string imageName = "levelImage";   
    sf::RenderTexture r;
    for(vector<GameObject*>::const_iterator i = gameObjects.begin(); i != gameObjects.end(); ++i) {
        (*i)->render(r);
    }
    r.getTexture().copyToImage().saveToFile(imageName);

Which should create an image of all my gameObjects. However, I am getting the error message: "failed to save image: "levelImage.png"" I am almost certain the problem is not within the for loop btw.

[dabbertorres]

You're forgetting sf::RenderTexture::clear() and sf::RenderTexture::display().

They're very similar to a sf::RenderWindow.

[Yaxlat]

You're forgetting sf::RenderTexture::clear() and sf::RenderTexture::display().

They're very similar to a sf::RenderWindow.

Actually I was forgetting sf::RenderTexture.create(); 
clear and display are only for interacting with the screen, not saving an image

[dabbertorres]

If you want a sf::RenderTexture to display the stuff you have drawn to it, you need to at least call display.

[Laurent]

clear and display are only for interacting with the screen, not saving an image

I wonder where you've read that. All the doc says is that clear() and display() are needed for correct behaviour; stick to this.