I need a day off from doing black and white monochrome pixel art.

Dipping my toes back into porting shader code into CPU-bound programs in C that do offline rendering.

Original code:

shadertoy.com/view/MsyGRm

Follow

Horrified by the black pixel at the center.

· · Web · 2 · 0 · 8

This pixel is brought to you by the number NaN.

Fixed! Now at a smaller resolution, because I care about bandwidth.

@carl I was going to reply to this jokingly and say "bad math". But as it turns out, yes, it is bad math. The center black pixel is caused because something somewhere is producing a NaN.

Sign in to participate in the conversation
post.lurk.org

A fediverse community for discussions around cultural freedom, experimental, new media art, net and computational culture, and things like that.

<svg xmlns="http://www.w3.org/2000/svg" id="hometownlogo" x="0px" y="0px" viewBox="25 40 50 20" width="100%" height="100%"><g><path d="M55.9,53.9H35.3c-0.7,0-1.3,0.6-1.3,1.3s0.6,1.3,1.3,1.3h20.6c0.7,0,1.3-0.6,1.3-1.3S56.6,53.9,55.9,53.9z"/><path d="M55.9,58.2H35.3c-0.7,0-1.3,0.6-1.3,1.3s0.6,1.3,1.3,1.3h20.6c0.7,0,1.3-0.6,1.3-1.3S56.6,58.2,55.9,58.2z"/><path d="M55.9,62.6H35.3c-0.7,0-1.3,0.6-1.3,1.3s0.6,1.3,1.3,1.3h20.6c0.7,0,1.3-0.6,1.3-1.3S56.6,62.6,55.9,62.6z"/><path d="M64.8,53.9c-0.7,0-1.3,0.6-1.3,1.3v8.8c0,0.7,0.6,1.3,1.3,1.3s1.3-0.6,1.3-1.3v-8.8C66,54.4,65.4,53.9,64.8,53.9z"/><path d="M60.4,53.9c-0.7,0-1.3,0.6-1.3,1.3v8.8c0,0.7,0.6,1.3,1.3,1.3s1.3-0.6,1.3-1.3v-8.8C61.6,54.4,61.1,53.9,60.4,53.9z"/><path d="M63.7,48.3c1.3-0.7,2-2.5,2-5.6c0-3.6-0.9-7.8-3.3-7.8s-3.3,4.2-3.3,7.8c0,3.1,0.7,4.9,2,5.6v2.4c0,0.7,0.6,1.3,1.3,1.3 s1.3-0.6,1.3-1.3V48.3z M62.4,37.8c0.4,0.8,0.8,2.5,0.8,4.9c0,2.5-0.5,3.4-0.8,3.4s-0.8-0.9-0.8-3.4C61.7,40.3,62.1,38.6,62.4,37.8 z"/><path d="M57,42.7c0-0.1-0.1-0.1-0.1-0.2l-3.2-4.1c-0.2-0.3-0.6-0.5-1-0.5h-1.6v-1.9c0-0.7-0.6-1.3-1.3-1.3s-1.3,0.6-1.3,1.3V38 h-3.9h-1.1h-5.2c-0.4,0-0.7,0.2-1,0.5l-3.2,4.1c0,0.1-0.1,0.1-0.1,0.2c0,0-0.1,0.1-0.1,0.1C34,43,34,43.2,34,43.3v7.4 c0,0.7,0.6,1.3,1.3,1.3h5.2h7.4h8c0.7,0,1.3-0.6,1.3-1.3v-7.4c0-0.2,0-0.3-0.1-0.4C57,42.8,57,42.8,57,42.7z M41.7,49.5h-5.2v-4.9 h10.2v4.9H41.7z M48.5,42.1l-1.2-1.6h4.8l1.2,1.6H48.5z M44.1,40.5l1.2,1.6h-7.5l1.2-1.6H44.1z M49.2,44.6h5.5v4.9h-5.5V44.6z"/></g></svg>