Dmytro Karaush dkaraush

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Ukraine

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dkaraush / oklch2rgb.js

Last active March 11, 2025 18:18

conversion OKLCH into RGB and RGB into OKLCH in js, simplified

	const multiplyMatrices = (A, B) => {
	return [
	A[0]B[0] + A[1]B[1] + A[2]*B[2],
	A[3]B[0] + A[4]B[1] + A[5]*B[2],
	A[6]B[0] + A[7]B[1] + A[8]*B[2]
	];
	}

	const oklch2oklab = ([l, c, h]) => [
	l,

dkaraush / code.bf

Created April 11, 2023 01:54

advent of code 2022 first task in brainfuck

	>>>,----------[--------------------------------------<[->>++++++++++<<]>[->+<]>[
	-<<+>>]<,----------]<[[-<+>]>,----------[--------------------------------------<
	[->>++++++++++<<]>[->+<]>[-<<+>>]<,----------]<]<[<[->>+>+<<<]>>>[-<<<+>>>]<<[->
	>+>+<<<]>>>[-<<<+>>>][-]>[-]>[-]+>[-]<<<<[>+>+<<-]>[<+>-]<<[>>+<<-]+>>>[>-]>[<<<
	<->>[-]>>->]<+<<[>-[>-]>[<<<<->>[-]+>>->]<+<<-][-]>[-]>[-]<<<[-][-]>[-]<<[>+>+<<
	-]>[<+>-]+>[<<<<[-]>[-<+>]>>->[-]]<[-]<<[-][-]>[-]>,----------[-----------------
	---------------------<[->>++++++++++<<]>[->+<]>[-<<+>>]<,----------]<[[-<+>]>,--
	--------[--------------------------------------<[->>++++++++++<<]>[->+<]>[-<<+>>
	]<,----------]<]<][-]>[-]+>[-]+<[>[-<-<<[->+>+<<]>[-<+>]>>]++++++++++>[-]+>[-]>[
	-]>[-]<<<<<[->-[>+>>]>[[-<+>]+>+>>]<<<<<]>>-[-<<+>>]<[-]++++++++[-<++++++>]>>[-<

dkaraush / fragment shader

Created July 22, 2020 16:35

a beautiful gradient shader at the main page of stripe website (https://stripe.com)

	precision highp float;

	uniform mat4 projectionMatrix;
	uniform mat4 modelViewMatrix;
	uniform vec2 resolution;
	uniform float aspectRatio;
	uniform float u_time;
	uniform float u_shadow_power;
	uniform float u_darken_top;
	uniform vec4 u_active_colors;