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bµgSo here is what the length of the derivatives look like on a 3D noise. I'm starting to see why it's useful for emulating terrain erosion ️⛰️<a href="https://fosstodon.org/tags/shadertoy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#shadertoy</a> <a href="https://fosstodon.org/tags/glsl" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#glsl</a> <a href="https://fosstodon.org/tags/noise" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#noise</a>

bµgTook me several days (including so many checks like manual unrolling), but here are the 3d gradient noise derivatives¹ from iquilezles expressed with mix instead of unrolled.Reason I did that? Well let's pretend it's for clarity and numerical stability (it's all a lie, I was just trying to understand wth was going on here).¹ <a href="https://iquilezles.org/articles/gradientnoise/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://iquilezles.org/articles/gradientnoise/</a><a href="https://fosstodon.org/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#math</a> <a href="https://fosstodon.org/tags/glsl" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#glsl</a> <a href="https://fosstodon.org/tags/shadertoy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#shadertoy</a>

MicrofractalIcosagon fractal\( z_{n+1}=fold(z_n)^2+c \) with 10 folds total.Colors produced by blending multiple color gradients of escape time, distance estimation, atom domain, phase and triangle inequality average together.<a href="https://mathstodon.xyz/tags/fractal" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fractal</a> <a href="https://mathstodon.xyz/tags/fractalart" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fractalart</a> <a href="https://mathstodon.xyz/tags/mathart" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mathart</a> <a href="https://mathstodon.xyz/tags/mandelbrot" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mandelbrot</a> <a href="https://mathstodon.xyz/tags/algorithmicart" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#algorithmicart</a> <a href="https://mathstodon.xyz/tags/creativecoding" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#creativecoding</a> <a href="https://mathstodon.xyz/tags/shadertoy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#shadertoy</a> <a href="https://mathstodon.xyz/tags/glsl" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#glsl</a>

Keenan CraneAfter trying several broken repos/scripts, I made a Python script for rendering <a href="https://mathstodon.xyz/tags/ShaderToy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ShaderToy</a> shaders to antialiased video (or rather, image sequences):<a href="https://github.com/keenancrane/ShaderDump" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://github.com/keenancrane/ShaderDump</a>(This one will surely be broken too someday, but for now it works nicely 😛)

blinryDiscovered something in <a href="https://chaos.social/@piko" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@piko</a>'s <a href="https://chaos.social/tags/Mandelbrot" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Mandelbrot</a> workshop, which I hadn't seen before!For each number in the complex plane c, start with x = 0, calculate x' = x^2 + c, and repeat this calculation n times!If the result is then a+bi, draw the color (a, b, 0) for that pixel!Here's the result for n = 1, 2, 3, ...:Code on <a href="https://chaos.social/tags/Shadertoy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Shadertoy</a>: <a href="https://www.shadertoy.com/view/W3sSWr" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.shadertoy.com/view/W3sSWr</a>Wondering if there's a continuous version?

DanilMy new Shadertoy pathtracing - all in playlist - <a href="https://www.shadertoy.com/playlist/cX3SDf" target="_blank" rel="nofollow noopener noreferrer" translate="no">https://www.shadertoy.com/playlist/cX3SDf</a><a href="https://mastodon.gamedev.place/tags/Shadertoy" class="mention hashtag" rel="tag">#Shadertoy</a> <a href="https://mastodon.gamedev.place/tags/shaders" class="mention hashtag" rel="tag">#shaders</a>

Tobias A. FrankeFirst instance featuring <a href="https://graphics.social/tags/Shadertoy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Shadertoy</a> bridge. Subscribe to categories and follow new shaders in your <a href="https://graphics.social/tags/RSS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RSS</a> reader: <a href="https://rssbridge.flossboxin.org.in/?action=display&bridge=ShadertoyBridge&category=sotw&format=Html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://rssbridge.flossboxin.org.in/?action=display&bridge=ShadertoyBridge&category=sotw&format=Html</a>

MicrofractalMandelwaves 🌊 <a href="https://www.shadertoy.com/view/tflSzN" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.shadertoy.com/view/tflSzN</a><a href="https://mathstodon.xyz/tags/Mandelbrot" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Mandelbrot</a> Julia sets, traced around the main cardioid of the Mandelbrot set.<a href="https://mathstodon.xyz/tags/shader" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#shader</a> <a href="https://mathstodon.xyz/tags/shaderart" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#shaderart</a> <a href="https://mathstodon.xyz/tags/shadertoy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#shadertoy</a> <a href="https://mathstodon.xyz/tags/glsl" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#glsl</a> <a href="https://mathstodon.xyz/tags/fractal" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fractal</a> <a href="https://mathstodon.xyz/tags/fractalart" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fractalart</a> <a href="https://mathstodon.xyz/tags/mathart" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mathart</a>

Robert Dresden<a href="https://mastodon.gamedev.place/tags/terminal" class="mention hashtag" rel="tag">#terminal</a> <a href="https://mastodon.gamedev.place/tags/windows" class="mention hashtag" rel="tag">#windows</a> <a href="https://mastodon.gamedev.place/tags/hlsl" class="mention hashtag" rel="tag">#hlsl</a> Since I didn't want to deal with "I lost my router password" problems, I pimped my Windows terminal instead and learned a little about hlsl by converting my <a href="https://mastodon.gamedev.place/tags/shadertoy" class="mention hashtag" rel="tag">#shadertoy</a> shader :) <a href="https://www.shadertoy.com/view/XXyGDt" target="_blank" rel="nofollow noopener noreferrer" translate="no">https://www.shadertoy.com/view/XXyGDt</a>

:rss: Hacker NewsDon't "optimize" conditional moves in shaders with mix()+step() <a href="https://iquilezles.org/articles/gpuconditionals/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://iquilezles.org/articles/gpuconditionals/</a> <a href="https://rss-mstdn.studiofreesia.com/tags/ycombinator" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ycombinator</a> <a href="https://rss-mstdn.studiofreesia.com/tags/quilez" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#quilez</a> <a href="https://rss-mstdn.studiofreesia.com/tags/inigo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#inigo</a> <a href="https://rss-mstdn.studiofreesia.com/tags/i%C3%B1igo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#iñigo</a> <a href="https://rss-mstdn.studiofreesia.com/tags/fractals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fractals</a> <a href="https://rss-mstdn.studiofreesia.com/tags/demoscene" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#demoscene</a> <a href="https://rss-mstdn.studiofreesia.com/tags/computer_graphics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#computer_graphics</a> <a href="https://rss-mstdn.studiofreesia.com/tags/mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mathematics</a> <a href="https://rss-mstdn.studiofreesia.com/tags/rendering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#rendering</a> <a href="https://rss-mstdn.studiofreesia.com/tags/demo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#demo</a> <a href="https://rss-mstdn.studiofreesia.com/tags/realtime" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#realtime</a> <a href="https://rss-mstdn.studiofreesia.com/tags/shader" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#shader</a> <a href="https://rss-mstdn.studiofreesia.com/tags/raytracing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#raytracing</a> <a href="https://rss-mstdn.studiofreesia.com/tags/shadertoy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#shadertoy</a> <a href="https://rss-mstdn.studiofreesia.com/tags/glsl" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#glsl</a> <a href="https://rss-mstdn.studiofreesia.com/tags/raymarching" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#raymarching</a> <a href="https://rss-mstdn.studiofreesia.com/tags/painting_with_maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#painting_with_maths</a>

∞ 𝕁uan ℂarlos𝕄ath is αωε§øm∈<a href="https://www.shadertoy.com/view/4cyfRy" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.shadertoy.com/view/4cyfRy</a><a href="https://mathstodon.xyz/tags/shadertoy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#shadertoy</a>

h-1^[solo]<a href="https://graphics.social/tags/MacOS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MacOS</a> system libraries as the only dependency and a full screen <a href="https://graphics.social/tags/framebuffer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#framebuffer</a> based app to do software rendering and metal based quad with shader bundle rendering <a href="https://graphics.social/tags/shadertoy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#shadertoy</a> alike effects done. Executable size 51kB in both cases. I don’t know to make it smaller, but it’s already some place for 4kB content and audio bundled in and meet <a href="https://graphics.social/tags/64kB" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#64kB</a> criteria in a <a href="https://graphics.social/tags/demoscene" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#demoscene</a> compo!

incre.mentDaily coding.<a href="https://www.shadertoy.com/view/lc3cRN" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.shadertoy.com/view/lc3cRN</a><a href="https://oldbytes.space/tags/coding" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#coding</a> <a href="https://oldbytes.space/tags/shader" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#shader</a> <a href="https://oldbytes.space/tags/art" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#art</a> <a href="https://oldbytes.space/tags/shadertoy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#shadertoy</a> <a href="https://oldbytes.space/tags/loop" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#loop</a>

PauloFalcaoSpooky cubes <a href="https://mas.to/tags/Shadertoy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Shadertoy</a> <a href="https://shadertoy.com/view/X3BBW3" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://shadertoy.com/view/X3BBW3</a> Made using <a href="https://mas.to/tags/materialmaker" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#materialmaker</a>

PauloFalcaoThe original <a href="https://mas.to/tags/MaterialMaker" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MaterialMaker</a> generated shader <a href="https://www.materialmaker.org/material?id=1016" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.materialmaker.org/material?id=1016</a> was manualy simplified and organized for humans 😄 Now on <a href="https://mas.to/tags/Shadertoy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Shadertoy</a> <a href="https://shadertoy.com/view/lXfcWs" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://shadertoy.com/view/lXfcWs</a>

Dan Millerplaying around with a 2D raytracer over an SDF scene <a href="https://mastodon.gamedev.place/tags/shader" class="mention hashtag" rel="tag">#shader</a> <a href="https://mastodon.gamedev.place/tags/shadertoy" class="mention hashtag" rel="tag">#shadertoy</a> <a href="https://www.shadertoy.com/view/MXfcRl" target="_blank" rel="nofollow noopener noreferrer" translate="no">https://www.shadertoy.com/view/MXfcRl</a>

Refurio AnachroHere's a plasma thing based on a quasi-periodic pattern you get when you let 5 planar waves collide. The waves aren't quite simple sine waves, and the code for colorizing this thing is quite funky, but it looks good. It keeps approaching and defocusing 5-symmetries and is fun to watch.<a href="https://www.shadertoy.com/view/Xc2BR1" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.shadertoy.com/view/Xc2BR1</a>This got me thinking. The basic mechanism is simple and could be realized with 5 glass windows painted with a sine shade pattern. To make it fun the windows would have to move independently. Ideas anyone?<a href="https://mathstodon.xyz/tags/shadertoy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#shadertoy</a> <a href="https://mathstodon.xyz/tags/plasma" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#plasma</a>

DanilScreenshot from <a href="https://www.shadertoy.com/view/Ntcyz7" target="_blank" rel="nofollow noopener noreferrer" translate="no">https://www.shadertoy.com/view/Ntcyz7</a> <a href="https://mastodon.gamedev.place/tags/shadertoy" class="mention hashtag" rel="tag">#shadertoy</a> <a href="https://mastodon.gamedev.place/tags/shader" class="mention hashtag" rel="tag">#shader</a>

DanilNew shader - <a href="https://www.shadertoy.com/view/4fffR7" target="_blank" rel="nofollow noopener noreferrer" translate="no">https://www.shadertoy.com/view/4fffR7</a> <a href="https://mastodon.gamedev.place/tags/shadertoy" class="mention hashtag" rel="tag">#shadertoy</a> <a href="https://mastodon.gamedev.place/tags/animation" class="mention hashtag" rel="tag">#animation</a> <a href="https://mastodon.gamedev.place/tags/shader" class="mention hashtag" rel="tag">#shader</a>

dovI wrote a <a href="https://fosstodon.org/tags/shadertoy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#shadertoy</a> like program using <a href="https://fosstodon.org/tags/VulkanSceneGraph" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#VulkanSceneGraph</a> (<a href="https://fosstodon.org/tags/vsg" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#vsg</a>). Slowly, slowly, am I starting to understand how to use this awesome library. See: <a href="https://github.com/vsg-dev/vsgExamples/pull/314" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://github.com/vsg-dev/vsgExamples/pull/314</a>

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