HiDPI RETINA image support

That’s not how the HiDPI feature works.

You only need to upload a large version, and insert the image as usual in WordPress (using the ?large?, ?medium? or other custom sizes).

The HiDPI feature will detect that a larger original is available and create a new version that is the right size (inserted image size multiplied by the client’s pixel density).

Oh I see now.
Does it store picture versions on server, or make it on the fly from original large image upon client request?

I have now link to /thumb.php?src=… &w=580 when I try to open a page with 1200×800 image uploaded (on non-HiDPI screen).

I set Large to 1200×1200 and Medium to 600×600.
Is it Lazyload who outputs 580×386 image for non-hiDPI monitor?

It makes the images on the fly, but caches them for performance. To not fill up the available storage with images of all possible sizes, they are rounded off.

By the way: This feature will soon be rewritten and improved.

Hi Bjorn !

Please help me to understand 2 issues:
1.
I’m using Lazy load plugin for photographer site, and uploaded photos are 400MB in size.
I have a folder named cache in wordpress “plugins” directory with cached images (files with names like “thumb_int_*****.img”, where *** – lots of numbers). Cache folder’s weight is about 200MB. The site is in development, and only I have access to it. I access it via PC, Ipad and Android phone.
I’m planning to open site for public, and I do not know how much will the cache grow if different computers/devices will start to access the site.

Please tell me what to expect from the cache procedure…

2.
Also, I noticed that plugin makes cache even for x2 size pictures.
I uploaded 1200×800 pictures 80 dpi.
All images are shown 600×400 on site.
For lowDPI devices it fairly converts images to ~600×400 size 96 dpi.
For retina devices it also converts images into 1200×800 96 dpi and stores it in cache folder.

I think I don’t need the plugin to convert 1200×800 80 dpi into 1200×800 96 dpi and store it in cache folder. Is it possible to tell the plugin to serve images directly in case it finds it is hiDPI device?

Thanks!