ggambetta

I'd have guessed multiply-by-0 and multiply-by-1 can be special-cased to run much faster and simpler code paths, like you'd do when writing MUL for a processor that doesn't have it (I <3 z80)

Not gonna fix 'em!

I love this! Happy to see I'm not the only crazy out there trying to port modern renderers to the Spectrum :D I've been meaning to experiment with assembly, but haven't gotten to that yet. This has some good ideas I'd love to play with.

No need to resend inputs with seq IDs <= the last one acknowledged by the server, right? 1-2 seconds sounds like overkill. Unless the server updates themselves are lower than 0.5-1 Hz, but what kind of game is that? A very sparse world where chances of misprediction are very low?

This is so well made! In the car racing track there's an overpass, and the cursor correctly Z-orders depending on whether you're coming from the upper or lower part of the track. Respect.

We tell ourselves scary stories about everything new. Advances in electricity + medicine == FRANKENSTEIN!

I learned primarily by trial and error, haven't found any good articles or videos :(

Hahaha, good observation :) I ran out of my childhood books (in Spanish) to fix, then I ran out of my GFs childhood books (in Latvian), so at that point I offered my services to anyone in the Google Zürich office. I got books in all kinds of languages I couldn't read, and a few chocolates and bottles of wine for my troubles :)

Some of the most interesting books were especially challenging. One in old German that was missing a couple of pages. It was a popular fairytale so I found the missing content online and a closely matching font, and reconstructed the pages. Another was in an Asian script I not only couldn't read, I didn't know how to sort or even properly rotate some loose pages, so I had to ask the owner. In a few cases when bits of the cover were missing, I found photos online, and printed a patch. Fun times!

I'm into book restoration, here's a gallery: https://photos.app.goo.gl/1oNxCfKJp4k6yjoZ9

Much less niche, but I'm also really into acting: https://m.youtube.com/watch?v=do5PicgU0Jw

Can we also ban anything where the second line is "let that sink in"? And anything claiming that "X is a masterclass in Y" (especially for (tweet, empathy))?

Can't help but think of George Clooney orchestrating the heist from his villa in Lago di Como (with a perfect alibi somehow). Maybe Brad Pitt was hungry.

That's just, like, your opinion, man. I loved the book and I loved the movie.

Nice, but I'm going to need some ND filters :)

"Brute force" would be trying random weights and keeping the best performing model. Backpropagation is compute-intensive but I wouldn't call it "brute force".

May I add Computer Graphics From Scratch, which covers both rasterization and raytracing? https://gabrielgambetta.com/computer-graphics-from-scratch/i...

I have to admit I'm quite surprised by how eerily similar this website feels to my book. The chapter structure, the sequencing of the concepts, the examples and diagrams, even the "why" section (mine https://gabrielgambetta.com/computer-graphics-from-scratch/0... - theirs https://lisyarus.github.io/blog/posts/implementing-a-tiny-cp...)

I don't know what to make of this. Maybe there's nothing to it. But I feel uneasy :(

I used ordered dithering in my ZX Spectrum raytracer (https://gabrielgambetta.com/zx-raytracer.html#fourth-iterati...). In this case it's applied to a color image, but since every 8x8-pixel block can only have one of two colors (one of these fun limitations of the Spectrum), it's effectively monochrome dithering.

https://gabrielgambetta.com - home of Computer Graphics from Scratch, the Client-Side Prediction & Server Reconciliation series, and some more misc things.

Pretty sure they're gone, that's why gphotos-sync and the like have stopped working (https://github.com/gilesknap/gphotos-sync-discussion/discuss...)

I switched to Gmail in 2007 or so. I used to have a gzipped mbox of my previous emails, dating back to maybe 1996 or 1997 when I got my first email account. This file was lost at some point, and I'm really sad about it. In some ways, it's like losing years and years of a journal, conversations I had with people, how I thought about the world at that age, etc. It's a huge loss to me.

About OP's tool, I also back up my Google account to an external disk periodically. Gmail is ~8 GB so it's manageable. But Google Photos is a pain. They recently removed most of the useful APIs, so AFAIK the only way to backup is via Takeout. It's terrible. Pictures in multiple albums are included as copies every time, so I had to make a script to find duplicates and replace them with symlinks. Just downloading the whole thing is a PITA (multiple 50 GB zip files). I get that Google has little incentive to make this better, in fact they might have an incentive to make it as inconvenient as possible, but I really wish they made it easier.

OP's link is a good one, but if you want a different perspective (heh), there's https://gabrielgambetta.com/computer-graphics-from-scratch/i..., also from scratch, also for free. The name clash is unfortunate, I don't really know who started using it earlier :(

I want my 5 Bitcoin back :_(

RANDOMIZE USR 0

My degree was 5 years back in the day. Was it worth it? Maybe, probably. But these days people seem to get a bachelor's and a master's in 5 years, and it kind of pisses me off to have that CV disadvantage when my degree could have effectively been that (the last two years were full of electives to choose a narrower specialization, and was much more research-y).

That spoiler should be a crime.

That's pretty hardcore, respect :)

I learned to solder as a pre-teen so I could make a nullmodem :) Then I learned that resistors were a thing when I made a parallel port sound card (this thing https://en.wikipedia.org/wiki/Covox_Speech_Thing). Fun times!

Great presentation, loved the format! Looking forward to the other two parts.

I did a bit of ordered dithering on the ZX Spectrum Raytracer (https://gabrielgambetta.com/zx-raytracer.html#fourth-iterati...), it was surprisingly easy to implement and the results were great.

I wonder why it wasn't done more in the 80s (other than manual pixel art), probably just performance. I do remember seeing ordered dithering patterns in the 90s, in Windows 3.1 and in The Secret of Monkey Island VGA (I guess the backgrounds were hand-painted and scanned?).

I had Star Wars in VHS, with the most ridiculously awful Spanish subtitles you can imagine. I wish I still had it, or had some pictures at least :_)

And someone would have replied "I could care less" (incorrectly implying they do care, even if it's a little bit) :(

St Peter's Basilica is probably the most mind-blowing for me, even just because of the scale. The intricate facade of the Duomo in Milano, the green and while marble exteriors of the Duomo in Firenze, the (neoclassical?) architecture of St Paul's, the unusualness of St Francis of Assisi, Notre Dame (haven't gone back after the fire yet), the bright golden interiors of pretty much any Orthodox church,... Hagia Sophia if I may stretch the definitions a bit :)