I've been experimenting with photography tooling around HDR recently, and am still very ambivalent about it

Undeniably it can make for really gorgeous results (especially with black & white photos)

But the way HDR content dims non-HDR content around it (eg here side by side with a white page for demonstration), often unpredictably, is a jarring and unpleasant experience

For now I think I see it as a powerful tool for the right situations, but still not really appropriate to be on by default

@heliographe_studio Is that with the non-mLED studio display? I've come to really dislike apple's "extended" dynamic range that does this. But if you have an actual HDR screen like the macbook pros, the effect is pretty remarkable and you don't get any of the weird dimming

@joshcalvetti it's on the Pro XDR (not Studio XDR) display. I see this behavior on all my HDR devices (MacBook Pro, iPad Pro, iPhone Pro)

which makes sense because the only way to avoid this would be to have any UI #FFFFFF be peak HDR brightness all the time... which is definitely wrong 😬

I don't think there's any "proper" way to solve this, "pure white" means different things to different content in a HDR world

So it's great for a single piece of fullscreen content, but falls apart otherwise

@heliographe_studio hmm that's weird- I can't say I've seen that with gain map based images.

In theory, you should be able to get away with #ffffff being "normal" brightness if you're applying brightness as a secondary render command, but it's obviously not working properly.

There's way too many standards and hacks floating around right now, and I'm disappointed to see that at least in b1 of iOS 27, we are entering the 4th year in which a bug around HDR rendering still hasn't been fixed.