I’m curious if there are any plans to support HDR images in Discourse? In my recent testing on my site I could not get images to display HDR. This is odd because I tested this many years ago and it did work, but maybe that support has been removed? Here is some good information for developers: Crea…

[image] davidkingham: This is odd because I tested this many years ago and it did work, but maybe that support has been removed? Yeah, it’s not that we specifically removed support… it’s that we do a lot more image processing and optimization than we used to and it’s a consequence of that. I…

Thank you for the helpful response Kris! I stupidly hadn’t thought to try AVIF. That makes sense with the thumbnails, seems to be the achiles heel of HDR everywhere. I’m posting an AVIF below to test because it’s not working on my instance… [IG Story HDR-0980] Edit: Interesting, it does work here…

Inline in the post it’s stripped, but it should be fine when clicked and opened in the lightbox :thinking: I just downloaded the original from the post and I can see there’s a gain map in the metadata

I found the culprit! It was the CDN. Bunny had WebP optimization turned on. I created an edge rule to exclude AVIF, and it’s working now. Thanks, Kris! Are there any plans to extend HDR support beyond the lightbox? I’m not a developer, so I may have this wrong. From what I can tell, ImageMagick add…

Ideally we would keep the image format, by simply resizing the image and keeping stuff like HDR intact.

Prise en charge des cartes de gain HDR pour les photos ?

Assistance produit

Falco (Falco) Octobre 23, 2026, 9:07 6

Idéalement, nous conserverions le format de l’image en la redimensionnant simplement et en préservant des éléments comme le HDR.

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Bypass image processing / access original source image? Product Support	1	845	Octobre 31, 2018
Option to select format and compression degree for thumbnails Feature uploads	4	635	Octobre 6, 2025
Image uploads - color profiles dropped Product Support uploads	4	786	Septembre 23, 2025
Retina image inline attachments Feature	11	2873	Octobre 3, 2018
Image preview gets cut off Product Support	17	1586	Septembre 12, 2023

Prise en charge des cartes de gain HDR pour les photos ?

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