Bloom Scroll

From scratch

Breadboard computers, compilers and renderers, built piece by piece on camera.

16 entries, about 4 hours of single videos. Bloom scroll this shelf

16 entries
18 min Exploring How Computers WorkSebastian Lague

…about how that all works, but basically it's a two step process: 1) invert the signals, 2) add binary 1 to that result. Sebstian's video discusses it here: The OR going into them is just something temporary I put there to send a "1" binary signal into the XORs which is to toggle on 'subtraction' mode. When that 1 goes into the XORs then they

Mentioned in r/Unity3D

14 min 8-bit computer RAM introBen Eater

He even has a breadboard 8 bit computer he built out of logic circuits, like he made the ALU and everything. This is his video on RAM design

Mentioned in r/compsci

17 min How do computers do it?9rock

If you’re into graphics programming or just curious about how rendering works under the hood, I’d love for you to check it out: Feedback is super welcome! If you see ways I can improve either the explanations or the visuals, I’d really appreciate it.

Posted to r/GraphicsProgramming

Questions about from scratch videos

Where should I start with from scratch videos?

Good first picks here, chosen by the list’s editor because they build ideas up from the basics, are Exploring How Computers Work (18 min), Coding Adventure: Software Rasterizer (50 min) and Compilers, How They Work, And Writing Them From Scratch (24 min).

Are there short from scratch videos?

Yes. 5 run under 15 minutes, including Raycasting from Scratch: How We Faked 3D in the 90s (9 min) and 8-bit computer RAM intro (14 min).

Are there full from scratch courses or lecture series?

4 entries are full course, lecture or playlist, such as Introductory CUDA programming tutorial playlist and Computer Science — High Performance Computing.

Where on Reddit were these from scratch videos shared?

Most came up in r/compsci (3), r/GraphicsProgramming (3) and r/programming (3). A mention can be a recommendation, a question or an argument, and each video’s page says which it was.

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