#GIMP now has support for multichannel #openexr #vfx thanks to @CmykStudent !

https://librearts.org/2025/06/week-recap-1-june-2025/

Not tested the myself but it might come in handy!
#VFX #OpenEXR

https://github.com/finnschi/heic-shenanigans

(via @www.pixelsham.com )

#OpenEXR best practices
- Real-Time Playback/Compositing: Use B44/B44A or DWA for faster I/O .
- CGI/Rendered Content: ZIP (lossless) or PIZ (smaller files) .
- Texture Maps: ZIP for fast access .
- Layered EXRs: ZIPS for scanline efficiency .
- Avoid Lossy Compression for non-color data (e.g., normals, depth). #exr #vfx #rendering #b3d #CGI

Powiedziałbym, że dla #EasyCLA bardziej pasowałaby nazwa "skomplikowane i zepsute CLA".

Po tym, jak w końcu udało mi się wysłać wniosek o CLA dla #OpenEXR, firma dalej go nie widziała. Spróbowałem jeszcze raz, i tym razem udało im się zaakceptować. Tyle że EasyCLA dalej twierdziło, że nie jest podpisane.

Ale już po problemie, bo jakiś przypadkowy typ postanowił wziąć moją łatkę, wraz z oryginalnym opisem zmian, usunąć moje dane osobowe i wysłać ją, przy okazji zamykając moją — a autorzy od razu to przyjęli. Nie, żeby to robiło jakąś szczególną różnicę, bo łatka była trywialna (do tego stopnia, że ta cała bieganina wokół CLA nie miała żadnego sensu), ale i tak niefajnie, jak ktoś kradnie twoją pracę i usuwa autorstwo.

#WolneOprogramowanie

I dare say a better name for #EasyCLA would be "convoluted and broken CLA".

Even after I was finally able to submit the CLA for #OpenEXR, the company couldn't find it. After another attempt, they were finally able to approve it. Except that it still claimed I'm unapproved.

However, that's not a problem anymore, because some random decided to take my patch, up to the commit message, wipe my authorship from it and submit it with a closing tag on my pull request — and upstream gladly merged that. I mean, it was a trivial patch (so trivial the whole CLA business was entirely pointless), so it's not like it matters, but it still feels wrong when people steal your work and remove authorship.

#FreeSoftware

I released v2.1.0 of my #research oriented #HighDynamicRange image viewer HDRView yesterday. Worked on lots of changes and improvements over the holiday break. Get the deets and binary downloads at the link below.

#hdr, #graphics, #rendering, #openexr, #cgi, #webgl, #macos, #dearimgui,

https://github.com/wkjarosz/hdrview/releases/tag/v2.1.0

HDRView v2.0 is out!

Release notes and Mac and Windows binaries here: https://github.com/wkjarosz/hdrview/releases/tag/v2.0

Also runs on Linux (no binaries yet) and directly in your browser, even on iPhone/iPad! (just go to https://wkjarosz.github.io/hdrview/).

#HDR #OpenEXR #VFX #rendering

Need to inspect an (#HDR / #OpenEXR) image on an iPad, iPhone, or a computer without a proper image viewer? HDRView’s latest beta seemingly now works in those cases. Just go to:

https://wkjarosz.github.io/hdrview/

And creating a home screen bookmark on iOS makes it almost feel like a real app.

#BSI WID-SEC-2024-3336: [NEU] [hoch] #Red #Hat #Enterprise #Linux (#OpenEXR): Schwachstelle ermöglicht Manipulation von Dateien

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux ausnutzen, um Dateien zu manipulieren.

https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-3336

Surprise OpenEXR support.

#Saulala #OpenEXR

Does anybody use DWAA compressed exrs when rendering multi-part or multi-channel exrs? I converted some renders with AOVs using #Nuke and #OIIO and they got larger rather than smaller! Also, the compression ratio doesn’t have any effect on the resulting file size and visual quality of the AOVs at all.

DWAA works with regular rgb channels though. Did I find a bug in basic #OpenEXR code?

#vfx #VFXPipeline

Hey! Is anyone interested in working on some foundational libraries used in the CG industry? Then check out the Academy Software Foundation's new event called Dev Days! You can get more information here: https://sites.google.com/view/aswfdevdays/home

#VFX #Programming #ASWF #MaterialX #OpenColorIO #OpenImageIO #OpenEXR

@animemer @thecatcollective
- #ZFS, #Ceph, #IPFS and espechally #LTFS are FLOSS & Industry Standards.
- #CinemaDNG & #OpenEXR as well as #TIFF are #OpenFormats.
- #FLAC is the go-to for #Audiophiles
- #SIP & #ZRTP are the only #MultiVendor #VoIP protocols and run every #IP phone that isn't a #SCIP or #GSMK #CryptoPhone...
- #OpenVPN, #WireGuard, #IPsec & #L2TP are the only major #VON rptocols, also #OpenSource
- #LibreOffice ofc.

I rendered my #blender animation in Filmic Log as I’m usually importing the #OpenEXR files into #davinciresolve anyway. However, there no compatible LUTs to convert the colour space back - at least none that I could find.

So I’m re-rendering without the log profile, it was just an experiment either way. EXR shouldn’t require a log as it has plenty of range in the colour space, but it seemed to make sense in preparation for some VFX stuff I had stuck in my mind.

FYI: Use #OpenEXR channels as separate #Photoshop layers

https://www.exr-io.com/

Developers using @opensuse Tumbleweed can now build with #GCC12. #KDE's Plasma gets an update and the movie industry gains improved image storage with the latest #openexr release. https://news.opensuse.org/2022/05/13/gcc-12-is-coming/