akella

// from https://mameson.com/experiment/glsl/proven_2/proven_2.html
function mm_hash12( iw){ //★ x, y とも 0〜2,000,000 の整数入力。
	const w = iw.mul( 0.000303) //★ 入力の 6 ケタとも活かす。
		.add( fract( iw.mul( 0.707))); //★ 入力の上位ケタは捨てて下位ケタ拾い上げ。
	const a = w.x.add( w.y.mul( 0.3)); //★ 斜めにする。

	//★ 最近気に入っているフェイク sin。
	a.assign( fract( a));
	a.assign( a.sub( a.mul( a)));

akella

/**
 * Copyright (c) 2015, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule normalizeWheel
 * @typechecks

akella

#define PI 3.1415926538

const float EPS = 0.001;
vec4 mod289(vec4 x) {
    return x - floor(x * (1.0 / 289.0)) * 289.0;
}
float mod289(float x) {
    return x - floor(x * (1.0 / 289.0)) * 289.0;
}
vec4 permute(vec4 x) {

akella

<snippet>
	<content><![CDATA[
<!-- begin $1 -->
<div class="$1">
	$2
</div>
<!-- end $1 -->
]]></content>
	<!-- Optional: Set a tabTrigger to define how to trigger the snippet -->
	<tabTrigger>di</tabTrigger>

akella

 const sat = Fn(([rgb,intensity])=> {
    const L = vec3(0.2125, 0.7154, 0.0721);
    const grayscale = vec3(dot(rgb, L));
    return mix(grayscale, rgb, intensity); 
  });

akella

float fixedpow(float a, float x)
{
    return pow(abs(a), x) * sign(a);
}

float cbrt(float a)
{
    return fixedpow(a, 0.3333333333);
}

akella

//
// Description : Array and textureless GLSL 2D/3D/4D simplex
//               noise functions.
//      Author : Ian McEwan, Ashima Arts.
//  Maintainer : ijm
//     Lastmod : 20110822 (ijm)
//     License : Copyright (C) 2011 Ashima Arts. All rights reserved.
//               Distributed under the MIT License. See LICENSE file.
//               https://github.com/ashima/webgl-noise
//

akella

What i'm using in streams and while working

Development tools

• https://fishshell.com/ - my default shell, i use theme bobthefish
• https://www.sublimetext.com/ - my default editor
  • Material Theme
  • Operator font
  • Packages: Emmet, Hayaku, SidebarEnhancements, JS Snippets, GSAP Snippets
  • Sublime snippet for comments
  • Sublime icon
• https://code.visualstudio.com/ - trying to switch, but not yet

akella

vec3 addGlitchEffect(vec3 render, vec2 uv, vec4 mouseFluid) {
        vec2 st = uv;
        vec2 offset = vec2(0.);
        float strength = uFluidStrength*0.7-uLetterBox*0.3;
        addFisheyeEffect(st, strength*0.5);
        vec2 glitchUv = st*vec2(3., 6.)-uTime*0.01;
        glitchUv = floor(glitchUv*15.)/15.;
        glitchUv *= vec2(0.08, 0.1);
        vec2 glitchUv2 = st*vec2(2., 5.)+uTime*0.03;
        glitchUv2 = floor(glitchUv2*vec2(10., 15.))/vec2(10., 15.);

akella

float intensity(in vec4 c) {
        return sqrt((c.x*c.x)+(c.y*c.y)+(c.z*c.z));
    }
    float sobel(float step, vec2 res, vec2 center, sampler2D tex) {
        float stepX = step/res.x*uDpr;
        float stepY = step/res.y*uDpr;
        float tLeft = intensity(texture(tex, center+vec2(-stepX, stepY)));
        float left = intensity(texture(tex, center+vec2(-stepX, 0)));
        float bLeft = intensity(texture(tex, center+vec2(-stepX, -stepY)));
        float top = intensity(texture(tex, center+vec2(0, stepY)));