Hacker News: gustavopezzihttps://news.ycombinator.com/user?id=gustavopezziHacker News RSShttps://hnrss.org/hnrss v2.1.1Thu, 10 Sep 2026 08:24:02 +0000<![CDATA[New comment by gustavopezzi in "SIMD in the 90s: Programming Intel's Pentium MMX"]]>It's probably the syntax highlight JS I'm using for the code snippets.

]]>Mon, 17 Aug 2026 10:12:46 +0000https://news.ycombinator.com/item?id=49328668gustavopezzihttps://news.ycombinator.com/item?id=49328668https://news.ycombinator.com/item?id=49328668<![CDATA[New comment by gustavopezzi in "SIMD in the 90s: Programming Intel's Pentium MMX"]]>Author here. Thanks for sharing.

]]>Sun, 16 Aug 2026 23:48:22 +0000https://news.ycombinator.com/item?id=49324997gustavopezzihttps://news.ycombinator.com/item?id=49324997https://news.ycombinator.com/item?id=49324997<![CDATA[New comment by gustavopezzi in "Pikuma: SIMD in the 90s: Programming Intel's Pentium MMX"]]>Autor here. Thanks for sharing!

]]>Fri, 14 Aug 2026 22:36:39 +0000https://news.ycombinator.com/item?id=49305474gustavopezzihttps://news.ycombinator.com/item?id=49305474https://news.ycombinator.com/item?id=49305474<![CDATA[New comment by gustavopezzi in "SIMD in the 90s: Programming Intel's Pentium MMX"]]>Author here. Thanks for sharing.

]]>Thu, 13 Aug 2026 13:56:45 +0000https://news.ycombinator.com/item?id=49286052gustavopezzihttps://news.ycombinator.com/item?id=49286052https://news.ycombinator.com/item?id=49286052<![CDATA[New comment by gustavopezzi in "Software rendering in 500 lines of bare C++"]]>Glad to hear that! All the topics are incredibly fun to play around with.

]]>Fri, 24 Jul 2026 17:25:41 +0000https://news.ycombinator.com/item?id=49038930gustavopezzihttps://news.ycombinator.com/item?id=49038930https://news.ycombinator.com/item?id=49038930<![CDATA[New comment by gustavopezzi in "Software rendering in 500 lines of bare C++"]]>That's right. :-)

]]>Fri, 24 Jul 2026 17:24:08 +0000https://news.ycombinator.com/item?id=49038910gustavopezzihttps://news.ycombinator.com/item?id=49038910https://news.ycombinator.com/item?id=49038910<![CDATA[New comment by gustavopezzi in "Software rendering in 500 lines of bare C++"]]>Hey! Gustavo here. Thanks for the mention. The 3D software renderer course is still one of my favorites, even though it was one of the first ones I've published. I recently re-recorded the chapter on perspective projection matrix.

]]>Fri, 24 Jul 2026 17:23:11 +0000https://news.ycombinator.com/item?id=49038900gustavopezzihttps://news.ycombinator.com/item?id=49038900https://news.ycombinator.com/item?id=49038900<![CDATA[New comment by gustavopezzi in "Pixuma: Fundamentals of Computer Science and Mathematics"]]>Thanks for the post. Just a small typo there, as the name of the school is "Pikuma."

]]>Fri, 24 Jul 2026 17:13:35 +0000https://news.ycombinator.com/item?id=49038717gustavopezzihttps://news.ycombinator.com/item?id=49038717https://news.ycombinator.com/item?id=49038717<![CDATA[New comment by gustavopezzi in "Pre-2022 Books"]]>It's extremely rare that I buy any books written after 2020. Not (just) because of AI, but because most publishers started to approach influencers that were not experts on their field to write books, hoping to piggyback on their high number of followers to sell more copies once the book is out.

]]>Sun, 21 Jun 2026 10:34:04 +0000https://news.ycombinator.com/item?id=48617558gustavopezzihttps://news.ycombinator.com/item?id=48617558https://news.ycombinator.com/item?id=48617558<![CDATA[New comment by gustavopezzi in "Ask HN: What are you working on? (May 2026)"]]>Thanks for the kind words. I still want to record "Operating Systems" and "Algorithms & Data Structures" to finally complete the core CS areas. It's missing Networking but I don't know much about that topic anyways. I also wanted to continue the retro programming with at least one 68K machine (maybe the Mega Drive) plus a MS-DOS x86 course too. Also, I wanted to teach 3D game physics, either as a new course or adding more chapters to the existing 2D physics course.

Hopefully, I'll decide on what to tackle soon.

]]>Mon, 11 May 2026 14:29:22 +0000https://news.ycombinator.com/item?id=48095476gustavopezzihttps://news.ycombinator.com/item?id=48095476https://news.ycombinator.com/item?id=48095476<![CDATA[New comment by gustavopezzi in "Ask HN: What are you working on? (May 2026)"]]>I left my fulltime faculty position at the university. I'm only teaching two modules this semester and I'll probably fade out even more in the future.

I've also paused recording any new lectures at pikuma.com for now. I'm still taking some time to decide what's next for the website. I'm currently focusing on reviewing math & physics to help homeschool my son.

Other than that, I just improved the roof of my chicken coop and I'm slowly evolving the foundation of my study cabin. This new place will be my offline library and music room soon. My plan is to only really go online once a week starting August this year.

]]>Mon, 11 May 2026 09:21:03 +0000https://news.ycombinator.com/item?id=48092783gustavopezzihttps://news.ycombinator.com/item?id=48092783https://news.ycombinator.com/item?id=48092783<![CDATA[New comment by gustavopezzi in "I started programming when I was 7. I'm 50 now and the thing I loved has changed"]]>If I look back, it was not even AI, since I don't use any AI model (almost at all). So, I don't think AI was really the main divisor for me. I have a feeling it was the "you don't own anything and everything is now a cloud/subscription" that was the main disappointment, which happened years before LLMs or AI-assisted programming.

]]>Tue, 10 Feb 2026 23:05:30 +0000https://news.ycombinator.com/item?id=46968300gustavopezzihttps://news.ycombinator.com/item?id=46968300https://news.ycombinator.com/item?id=46968300<![CDATA[New comment by gustavopezzi in "I started programming when I was 7. I'm 50 now and the thing I loved has changed"]]>I stopped working as a programmer and I'm teaching CS+math and homeschooling my kid.

]]>Tue, 10 Feb 2026 22:59:10 +0000https://news.ycombinator.com/item?id=46968221gustavopezzihttps://news.ycombinator.com/item?id=46968221https://news.ycombinator.com/item?id=46968221<![CDATA[New comment by gustavopezzi in "I started programming when I was 7. I'm 50 now and the thing I loved has changed"]]>That's correct! Even though I have been focused more on math lately (which was always my main study area outside the tech industry). That being said, I have limited my internet usage to ~2 hours per day to answer questions from students and I am doing a lot of homeschooling with my son.

]]>Tue, 10 Feb 2026 22:58:14 +0000https://news.ycombinator.com/item?id=46968211gustavopezzihttps://news.ycombinator.com/item?id=46968211https://news.ycombinator.com/item?id=46968211<![CDATA[New comment by gustavopezzi in "I started programming when I was 7. I'm 50 now and the thing I loved has changed"]]>Thank you for writing this. My feelings are very similar to the ones described by the author and the timeline almost matches. The thrill of tecnology for me started to fast decay since the early 2010s and now I see it as a no-return stage. I still have fun with my retro hardware & software but I am no longer an active practitioner and I have pivoted my attention and my efforts somewhere else. Unfortunately, I no longer feel excited for the future decades of tech and I am distancing myself from it.

]]>Tue, 10 Feb 2026 15:54:23 +0000https://news.ycombinator.com/item?id=46961518gustavopezzihttps://news.ycombinator.com/item?id=46961518https://news.ycombinator.com/item?id=46961518<![CDATA[New comment by gustavopezzi in "Implementing a tiny CPU rasterizer (2024)"]]>Thanks for mentioning pikuma. :-)

The 3D software rendering is still the most popular lecture from our school even after all these years. And it really surprises me because we "spend a lot of time" talking about some old techniques (MS-DOS, Amiga, ST, Archimedes, etc.). But it's fun to see how much doing things manually help students understand the math and the data movement that the GPU helps automate and vectorize in modern systems.

]]>Sat, 31 Jan 2026 11:54:16 +0000https://news.ycombinator.com/item?id=46835798gustavopezzihttps://news.ycombinator.com/item?id=46835798https://news.ycombinator.com/item?id=46835798<![CDATA[New comment by gustavopezzi in "Ask HN: Share your personal website"]]>https://pikuma.com

]]>Thu, 15 Jan 2026 05:35:03 +0000https://news.ycombinator.com/item?id=46628463gustavopezzihttps://news.ycombinator.com/item?id=46628463https://news.ycombinator.com/item?id=46628463<![CDATA[New comment by gustavopezzi in "Learn computer graphics from scratch and for free"]]>Gustavo here. Thank you for the mention!

]]>Mon, 29 Dec 2025 21:30:30 +0000https://news.ycombinator.com/item?id=46425950gustavopezzihttps://news.ycombinator.com/item?id=46425950https://news.ycombinator.com/item?id=46425950<![CDATA[New comment by gustavopezzi in "Coursera to combine with Udemy"]]>That's right. :)

]]>Thu, 18 Dec 2025 20:28:02 +0000https://news.ycombinator.com/item?id=46318209gustavopezzihttps://news.ycombinator.com/item?id=46318209https://news.ycombinator.com/item?id=46318209<![CDATA[New comment by gustavopezzi in "Coursera to combine with Udemy"]]>pikuma.com

]]>Thu, 18 Dec 2025 03:30:32 +0000https://news.ycombinator.com/item?id=46308635gustavopezzihttps://news.ycombinator.com/item?id=46308635https://news.ycombinator.com/item?id=46308635