Heyiboy 🌽
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Heyiboy 🌽
@heyiboy.com
I'm making a pixel art sketchbook called Cob.
Yeah it feels so good. Pixels are “wet” when they are painted and can get wet again when another water color stroke goes on top. I need to fix the age of a pixel. If I paint and paint again under a minute then pigment continues to move around. After a few minutes, pixels don’t move around as easily.
December 10, 2025 at 4:41 PM
Months ago, I wrote an empty function called simulationTick() and then built an entire pixel art watercolor simulation engine around it. Today is the first time I’ve seen it work. Crazy.
December 2, 2025 at 4:14 PM
Updates to #KernelEngine

🖌️ I think the UX of changing brush size feels so good. There’s haptic feedback too. I hope the knob doesn’t get in the way too much.

🧰 Toolbox is on the bottom now with all tools laid out in a row. Should be super easy to find the tool I need.

🎨 Swatches!

#pixelart
November 26, 2025 at 12:37 AM
⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️⬛️🔳
November 25, 2025 at 2:22 PM
YES. It only works with odd number brushes lollllllll. It's also just a circle but it should be like the exact shape of the stroke... ok. ok. ok. ok.
November 24, 2025 at 3:38 PM
it's like a firefly by accident. I'm trying to make a preview of the brush as I draw. Sometimes I think I'm good at this and sometimes I get humbled.

#KernelEngine #pixelart
November 24, 2025 at 3:18 PM
It lives! It's also a mobile app now I guess? I want to take advantage of Apple Pencil eventually. I'll circle back to the android build after.

I've built real pixel water color into my engine so that should be next in my app. Colors too. Tools. Undo. Grids. What else?

#KernelEngine
November 24, 2025 at 2:31 PM
The most basic thing ever but it's pixel art baby. Way harder than I thought to set up.
November 24, 2025 at 12:18 PM
holy GPU pixels. It's not pixel art but real pixels from Kernel are being rendered.
November 24, 2025 at 10:57 AM