How to display a big background in your game

Really big images can reduce the performance of a game, as they are costly to transfer and store in the graphics card memory. They are also weighting more in your game package, making the download and loading longer for players.

  • As possible, try to stick to smaller images. Avoid anything larger than 1024×1024 or 2048×2048. If possible, repeat the image, using a Tiled Sprite object. Tiled Sprite can be as large as necessary without any impact on performances.
  • If you still want to display a very large, high resolution image, it's in this case a good idea to split it into multiple, smaller images, and display an object for every image. You can also use a Sprite, and have a different image in each animation. Then, put multiple instances of the object on the scene and change the animation of each instance to recompose the original image.