The ABC’s of high-pixel-density screens
Apple introduced the first high density screen with the release of the iPhone 4, with four times the resolution of standard screens. They named this screen the Retina Display to reflect that the individual dots on the screen (pixels) are no longer discernible to the naked eye, resulting in much sharper and more natural looking graphics and text. These high density displays are now common across mobile devices and are starting to appear on laptop and desktop screens. However the majority of images on the internet do not contain enough data to be able to display all of this additional detail, resulting in images that look just as blocky or blurry as they do on standard screens. This is a pity because high density graphics are a wonderful thing, and that’s why Storbie now supports high density graphics.
What does this mean for Storbie users?
The great thing is that Storbie does all of the work of taking your uploaded image and presenting it in the best possible way. Where possible we detect high density screens and present them with higher resolution images that take full advantage of their capabilities. This is balanced with the need to ensure that images don’t become so large that they slow down the performance of your website. To take full advantage of this all you need to do is upload your graphics and photos at sufficient resolution, and then we take care of the rest.
What pixel dimensions should your original image be for uploading?
We’re not just supporting double resolution but looking to the future by storing your original image at a higher resolution than is currently required, so we can take advantage of new capabilities in the future. This means you should only have to upload your images once and never need to replace them in the future.
As a rule of thumb you should upload your images at a resolution of about 3000 pixels wide, or 3000 pixels tall, whichever is greater. If your images are not that large then upload at the highest quality you can. Uploading an even larger image is fine, but you will be increasing the time it takes to upload the image without gaining any benefit.