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1

Graphics / Jagged edges

« on: May 26, 2011, 02:55:03 pm »

I'm playing around a bit with isometric tiles. At first transparency didn't work but after changing graphics software it worked as it should. But then I noticed that the transparency color bled into the bled into the sprite, so I turned off Smoothing. Now, however, I get jagged edges on my sprites. I cast the X/Y values to integers before drawing. How do I fix this?

The jagged edges wander when I move the sprite in the Y axis.

http://i.imgur.com/1xbsy.png

Also, is there a way to not have the transparent color bleed with smoothing enabled? The file is a .png created in Graphics Gale

Code: [Select]

#include <SFML/Graphics.hpp>

int main(int argc, char *argv[]){

    char map[32][32];

    unsigned int sprite = 0;

    sf::RenderWindow App(sf::VideoMode(800,600,32), "Isometric tiles");

    sf::Image Image;
    if (!Image.LoadFromFile("testtile.png")){

    }
   
    Image.SetSmooth(false);

    sf::Sprite Sprite;
    Sprite.SetImage(Image);

    App.SetFramerateLimit(50);

    while(App.IsOpened()){

        sf::Event Event;
        while(App.GetEvent(Event)){
            if(Event.Type == sf::Event::Closed){
                App.Close();
            }
            if((Event.Type == sf::Event::KeyPressed) && (Event.Key.Code == sf::Key::Q)){
                sprite--;
            }
            if((Event.Type == sf::Event::KeyPressed) && (Event.Key.Code == sf::Key::W)){
                sprite++;
            }
            if(Event.Type == sf::Event::MouseMoved){
                Sprite.SetX((int)(Event.MouseMove.X));
                Sprite.SetY((int)(Event.MouseMove.Y));
            }
        }
        App.Clear();

        Sprite.SetSubRect(sf::IntRect((64*sprite),0,(64*(sprite+1)), 32));

        App.Draw(Sprite);

        App.Display();
    }

    return EXIT_SUCCESS;
}