Ignacio Castaño🍉 on nostr

Recent Notes

I'm finally ready to announce Spark for Unity, a Unity package that brings the Spark texture codecs to the Unity engine and it's free for projects with lifetime revenue under $100K.

https://www.ludicon.com/castano/blog/2026/06/spark-for-unity/

#unity #spark

Jason Evangelho 🐧🎒 · 8w

Yesterday: a leisurely half-day soak in my favorite eastern Sierra hot spring. This time I finally measured the source temperature: 134 Fahrenheit! #california #hotspring #nature https://files.la...

Ignacio Castaño🍉 @Ignacio Castaño🍉 1780503920

@nprofile1q... Careful, the minerals in the hot springs often interact with the sealant of most watches! I destroyed my last watch that way.

Jason Evangelho 🐧🎒 · 8w

nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqrfclpymvvthy4lhd5dtsk73jlj9hzs38nuj7k3ss3gz0ekt84hjs6eyk06 VERY good to know thank you. Geez I’ve worn mine in at least 4 hot springs. Hopefully Garmin built this to last!

Aras Pranckevičius · 8w

nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqrfclpymvvthy4lhd5dtsk73jlj9hzs38nuj7k3ss3gz0ekt84hjs6eyk06 does it spark joy?

Ignacio Castaño🍉 @Ignacio Castaño🍉 1780418018

@nprofile1q... That's a dangerous question to ask.

Ignacio Castaño🍉

@Ignacio Castaño🍉 1780353360

NVIDIA RTX *Spark*? seriously? Sigh.

Aras Pranckevičius · 8w

nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqrfclpymvvthy4lhd5dtsk73jlj9hzs38nuj7k3ss3gz0ekt84hjs6eyk06 does it spark joy?

Aras Pranckevičius · 9w

nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqrfclpymvvthy4lhd5dtsk73jlj9hzs38nuj7k3ss3gz0ekt84hjs6eyk06 this is shaping up to be a really in depth demo!

Ignacio Castaño🍉 @Ignacio Castaño🍉 1779900494

@nprofile1q... Yep, I have to admit an engine makes development easier.

Ignacio Castaño🍉

@Ignacio Castaño🍉 1779871422

Also in the demo: procedural virtual texturing. A 256K × 256K texture in 16 MB.

Aras Pranckevičius · 9w

nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqrfclpymvvthy4lhd5dtsk73jlj9hzs38nuj7k3ss3gz0ekt84hjs6eyk06 this is shaping up to be a really in depth demo!

Aras Pranckevičius · 10w

0x2D today! Still quite a bit to go until 3D.

Ignacio Castaño🍉 @Ignacio Castaño🍉 1779312839

@nprofile1q... Congrats!

Ignacio Castaño🍉

@Ignacio Castaño🍉 1777952135

Loading images is one of the most fundamental things a browser does. It turns out that doing it efficiently from JavaScript is an open problem. There are multiple APIs available and the right choice depends on the browser you are targeting.

https://www.ludicon.com/castano/blog/2026/05/image-loading-on-the-web/

Tom Forsyth · 13w

Don't go nuts of course - plenty of climbers get tendon problems because they climb and climb and climb. But a little really helps. When I start to feel "tight wrists" it's usually because for one rea...

Ignacio Castaño🍉 @Ignacio Castaño🍉 1777428280

@nprofile1q... I’ve had many torn pulleys, but not a single wrist problem since I started climbing. I used to have carpal tunnel syndrome back in the day.

Tom Forsyth · 13w

nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqrfclpymvvthy4lhd5dtsk73jlj9hzs38nuj7k3ss3gz0ekt84hjs6eyk06 Yeah I'm always torn about recommending some sports, because I know my fellow nerds - we always take everything too far. Climbing and lifting have obvious dangers. That's what I like abo...

Tom Forsyth · 14w

Ignacio Castaño🍉 @Ignacio Castaño🍉 1777137292

@nprofile1q... right? Wish I could talk to some of those hw engineers.

Ignacio Castaño🍉

@Ignacio Castaño🍉 1777054085

Some reading for the weekend:

Implementation details of Apple's lossy texture compression format.
https://www.ludicon.com/castano/blog/2026/04/metal-lossy-compression-format/

Enjoy!

Tom Forsyth · 14w

nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqrfclpymvvthy4lhd5dtsk73jlj9hzs38nuj7k3ss3gz0ekt84hjs6eyk06 This was fascinating and... puzzling. Many odd odd choices that you called out. I am sure there must be some good reasons for them - these are smart people - but like you they do leave m...

Ignacio Castaño🍉

@Ignacio Castaño🍉 1777006694

Looks like I'm locked out of both Apple and Google's developer programs.

I let my memberships lapse while dealing with more pressing things, and now I'm trying to restore them, but my Apple account is locked and Google is rejecting my re-enrollment with no explanation.

I opened a support request with Apple two weeks ago and haven't heard nothing. I can't even figure out how to open one with Google.

Does anybody know what avenues I have to resolve this?