A Bright HDR Image
walzr.com
A Bright HDR Image
1–10 of 12 posts
Re: A Bright HDR Image
#2This is the most "why is this on the front page of HN?" post I've ever seen.
Re: A Bright HDR Image
#3Some AI slop to let you pick any color and brightness: https://codepen.io/zamadatix/pen/VYerweP. Note: it does not attempt to clamp anything, so if you extend brightness beyond what makes sense in the color space or your display can't actually represent that color the color may shift. If things just appear white try lowering the brightness (and checking it's actually running in HDR at the bottom).
If you have an HDR monitor + the latest Chrom* based browser this should work out of the box on macOS/Windows. Other platforms/browsers you'll have to check the WebGPU + HDR standards support (which will be different for than ) and may need to twiddle flags and/or wait for future releases.
It should tell you the active color space and range info at the bottom.
Re: A Bright HDR Image
#4Some AI slop to let you pick any color and brightness: https://codepen.io/zamadatix/pen/VYerweP . Note: it does not attempt to clamp anything, so if you extend brightness beyond what makes sense in the color space or your display can't actually represent that color the color may shift. If things just appear white try lowering the brightness (and checking it's actually running in HDR at the bottom). If you have an HDR…
Mobile Safari doesn’t have WebGPU… which I appreciate.
But it also supports HDR with just about every image format. All you need is a properly crafted PNG.
Re: A Bright HDR Image
#5On my phone, all i see is empty white image. Is that supposed to be a joke or is my device/browser not supporting HDR?
Re: A Bright HDR Image
#6Some AI slop to let you pick any color and brightness: https://codepen.io/zamadatix/pen/VYerweP . Note: it does not attempt to clamp anything, so if you extend brightness beyond what makes sense in the color space or your display can't actually represent that color the color may shift. If things just appear white try lowering the brightness (and checking it's actually running in HDR at the bottom). If you have an HDR…
Mobile Safari doesn’t have WebGPU… which I appreciate. But it also supports HDR with just about every image format. All you need is a properly crafted PNG.
iOS 26 Safari has support to WEBGPU.
Re: A Bright HDR Image
#7On my phone, all i see is empty white image. Is that supposed to be a joke or is my device/browser not supporting HDR?
If it just looks like an ordinary white square then it's not displaying with HDR. Could be unsupported or maybe disabled.
Re: A Bright HDR Image
#8Some AI slop to let you pick any color and brightness: https://codepen.io/zamadatix/pen/VYerweP . Note: it does not attempt to clamp anything, so if you extend brightness beyond what makes sense in the color space or your display can't actually represent that color the color may shift. If things just appear white try lowering the brightness (and checking it's actually running in HDR at the bottom). If you have an HDR…
Mobile Safari doesn’t have WebGPU… which I appreciate. But it also supports HDR with just about every image format. All you need is a properly crafted PNG.
Why would you want it to not support WebGPU?
Re: A Bright HDR Image
#9The lack of context is kinda funny. This page from 6 months ago is a clearer demonstration and explains the idea: "HDR‑Infused Emoji" https://sharpletters.net/2025/04/16/hdr-emoji/
Discussed on HN: https://news.ycombinator.com/item?id=43717606
Basically a lot of recent-ish devices will display this with extra brightness. A feature intended for example in cinematic contexts, but can easily become an annoyance if abused.
Re: A Bright HDR Image
#10They don’t seem to do it anymore, but for a while the title on Disneyland.com would kinda sparkle in HDR when you loaded it on the right hardware/sodtware (safari on MacBook Pro for example). Was actually pretty subtle and animated out so it was more of a “wait, did I just see that?” sort of thing.