SFML community forums
Help => Graphics => Topic started by: TheCommunistDuck on March 26, 2010, 09:51:38 pm
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Hi.
sf::Image doesn't actually derive from sf::Drawable, so how would you draw one to the screen?
I ask because my current project requires me to edit pixels in an sf::Image and then draw it to the screen. I've tried plugging it into an sf::Sprite and then GetImage(), but that returns a const sf::Image which I can't modify. Any ideas anyone, for either way?
Thanks. :D
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What if you just have your sf::Image in your memory, modify it asyouwant, and whenever you want it to draw, just make an sf::Sprite from it, and draw that to the screen?
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Wouldn't that consume a lot of memory, doing it 60 times a second though?
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Wouldn't that consume a lot of memory, doing it 60 times a second though?
No ;)
But you don't have to setup a new sprite every frame, you can just create it once. You don't even need to call SetImage after modifying the image.
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But you don't have to setup a new sprite every frame, you can just create it once. You don't even need to call SetImage after modifying the image.
Wow... There is always something to learn :D
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That is what I am currently doing. The way my rendering system was already set up before using SFML kinda required it. Same goes for drawing text. I just create a single Sprite and String2D and set it up before each draw. Very simple and low overhead. :)