Support for 2x & 3x through data attributes

[brentdodell]

I didn't know if there was a better place to ask questions.

Is there a way to manually specifying both 2x & 3x versions through data attributes? The following example given in the README seems to only support one. I used rails with digested assets and would prefer not to generate non-digested assets, but would also like to support 2x & 3x. Thanks!

<img
  src="/images/my_image.png"
  data-rjs="/images/2x/my-image.png" />

[husseycoding]

There doesn't appear to be way to do this that I have found either (if you define the attribute twice then only one is used of course) - however if you set a 3x image as the path, then it will also be used for 2x retina. I'm not entirely sure if there are any issues with this as I don't have a 3x retina device to test on, but I can say that all looks ok in 2x and 3x retina in responsive design mode of a standard desktop browser.

[glaliberte]

I needed something like that too and saw that this issue was opened since August 14.

I coded a little solution for one of my project on a fork:
https://github.com/glaliberte/retinajs#manually-specifying-multiple-high-res-url

[TongDaDa]

You can use the browser devicePixelRatio for judgment Const DPR = window. DevicePixelRatio | | 1 Of course, if it is never too, trouble.But seems there is no other way, or you can rewrite the retina, js