Feed aggregator

All the Trailers From Summer Game Fest 2026

CNET Feed - Fri, 06/05/2026 - 7:49pm
August and September are going to be packed with game releases.
Categories: CNET

Today's NYT Strands Hints, Answers and Help for June 6 #825

CNET Feed - Fri, 06/05/2026 - 7:47pm
Here are hints and answers for the NYT Strands puzzle for June 6 No. 825.
Categories: CNET

Apple Maps on the Web

Hacker News - Fri, 06/05/2026 - 7:45pm

Article URL: https://maps.apple.com/

Comments URL: https://news.ycombinator.com/item?id=48419855

Points: 2

# Comments: 0

Categories: Hacker News

Today's NYT Connections Hints, Answers and Help for June 6, #1091

CNET Feed - Fri, 06/05/2026 - 7:37pm
Here are some hints and the answers for the NYT Connections puzzle for June 6, No. 1,091.
Categories: CNET

Crossfire, the Debut Game From That's No Moon, Seeks to Revolutionize Cover Shooters

CNET Feed - Fri, 06/05/2026 - 7:23pm
The new studio, made up of former Uncharted and The Last of Us developers, reveals its first project -- and all the new tech it hopes will change gaming.
Categories: CNET

Control Resonant Spills Paranormal Chaos into the Streets of New York

CNET Feed - Fri, 06/05/2026 - 7:17pm
Remedy's follow-up to 2019's Control switches from X-Files government spookshow to a journey of restoring humanity.
Categories: CNET

Apple Brings Back Its Enhanced Maps Features for F1 Monaco Grand Prix

CNET Feed - Fri, 06/05/2026 - 7:00pm
If you're not able to watch the Formula One race in person, you can explore the track and layout with Apple's detailed experience in the Maps app.
Categories: CNET

Show HN: I created a RAW to HDRI stacker in (mostly) Common Lisp

Hacker News - Fri, 06/05/2026 - 6:17pm

This is an upgrade of a tool I created 15 years ago in Python to learn OOP and solve some inadequacies in the HDR stacking tools I could find at the time. The problem was, none of them were really "batch friendly". None of them properly preserved the metadata I wanted them to stuff into the output file. There were probably some other reasons also, I just can't remember them now.

It got the job done, but was very slow. Python was what I knew at the time and even with NumPy, I was limited in the speed I could squeeze out of it. (I also made some very specific, conscious, architectural choices to be extra frugal with RAM, which impacted performance further.)

This new version is SUBSTANTIALLY faster than the old one. This time around the exercise was more about having some fun in Lisp and exploring SIMD in SBCL via the built-in sb-simd library.

It uses LibRaw (via its C API wrapper and CFFI) for reading and and a custom multi-threaded pure Lisp implementation of (a subset) of OpenEXR I created for writing the output files. The threading helps speed up the otherwise expensive deflate based codec and goes a long way towards speeding up the end-to-end pipeline. The core processing / compositing logic is pure Lisp.

Cool features: - Buffer parallel (threaded) LibRaw reads - Frugal use of memory (RAW read as 16 bit INT and is only upcast to float during actual stacking) - AVX2 acceleration of 16 bit INT up-cast and HDR stacking loop - Threaded OpenEXR writes - EXIF to EXR metadata preservation of the "center" exposure bracket, which essentially forwards meaningful telemetry regarding the radiometric "reality" of the scene when it was photographed downstream to subsequent consumers.

You can learn more about it and the "algorithm" it uses from the repo. The math for HDR stacking is really very simply if you know basic compositing and understand how digital camera sensors work.

Comments URL: https://news.ycombinator.com/item?id=48419065

Points: 1

# Comments: 0

Categories: Hacker News

Pages