Sidney San Martín s4y

## lasercube.py
#!/usr/bin/env python3

# This is a proof of concept for controlling a LaserCube
# (https://www.laseros.com) over the network. RUNNING THIS CODE WITH A REAL
# LASERCUBE CAN BE PHYSICALLY DANGEROUS. PLEASE BE CAREFUL, AND, IF IN DOUBT,
# USE THE SAFETY LENS!

# Copyright 2021 Sidney San Martín
#
# Permission to use, copy, modify, and/or distribute this software for any

## hsv_utils.glsl
// https://stackoverflow.com/questions/15095909/from-rgb-to-hsv-in-opengl-glsl
vec3 rgb2hsv(vec3 c) {
    vec4 K = vec4(0.0, -1.0 / 3.0, 2.0 / 3.0, -1.0);
    vec4 p = mix(vec4(c.bg, K.wz), vec4(c.gb, K.xy), step(c.b, c.g));
    vec4 q = mix(vec4(p.xyw, c.r), vec4(c.r, p.yzx), step(p.x, c.r));

    float d = q.x - min(q.w, q.y);
    float e = 1.0e-10;
    return vec3(abs(q.z + (q.w - q.y) / (6.0 * d + e)), d / (q.x + e), q.x);
}

## hue.md

      
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                s4y
                / hue.md
            
            
              Created
              November 28, 2020 05:21
            
              
                FFmpeg get hue from RGB
              
          
    The following FFmpeg filter will populate the red channel of a video with the hue of the video:
geq=r='if(eq(st(3,max(max(st(0,r(X,Y)/255),st(1,g(X,Y)/255)),st(2,b(X,Y)/255))),ld(0)),(ld(1)-ld(2))/(ld(3)-min(ld(1),ld(2))),if(eq(ld(3),ld(1)),2+(ld(2)-ld(0))/(ld(3)-min(ld(0),ld(2))),4+(ld(0)-ld(1))/(ld(3)-min(ld(0),ld(1)))))*42*ld(3)'

You can make a grayscale video by appending the following:
 , geq=g='r(X,Y)':b='r(X,Y)'


## index.html
<!DOCTYPE html>
<meta name=viewport content="width=device-width">
<style>
html, body, #app {
  height: 100%;
}

html {
  background: rgb(220, 0, 220, 1);
}

## common
:fn sin 1
:fn cos 1
:fn vec2.1 1
:fn vec2 2
:fn vec3 3
:fn vec3.1 1
:fn vec3.2 2
:fn vec4.1 1
:fn vec4.2 2
:fn vec4.3 3

## Whole Foods delivery watcher.scpt
tell application "Safari"
	repeat
		repeat with theWindow in every window
			repeat with theTab in every tab of theWindow
				if name of theTab contains "Reserve a Time Slot" then
					set checkoutWindow to theWindow
					set checkoutTab to theTab
				end if
			end repeat
		end repeat

## self_signed.sh
# IP_ADDRESS_HERE -> 192.168…
openssl req -newkey rsa:2048 -nodes -keyout key.pem -x509 -days 365 -out cert.pem -reqexts SAN -extensions SAN -config <(cat /System/Library/OpenSSL/openssl.cnf <(printf '[SAN]\nsubjectAltName=IP:IP_ADDRESS_HERE\nextendedKeyUsage=serverAuth\nbasicConstraints=critical,CA:TRUE'))

## raymarch_cube_slices.py
# coding: utf-8

import scene
import motion

preamble = """
precision highp float;
varying vec2 v_tex_coord;
uniform vec2 u_sprite_size;
uniform sampler2D u_texture;

## macvim-pull-858.rb
# Reference: https://github.com/macvim-dev/macvim/wiki/building
class Macvim < Formula
  desc "GUI for vim, made for macOS"
  homepage "https://github.com/macvim-dev/macvim"
  head "https://github.com/s4y/macvim.git", :branch => "stateful-render"

  depends_on :xcode => :build
  depends_on "cscope"
  depends_on "lua"
  depends_on "python"

## unbak.py
#!/usr/bin/env python3

# See https://www.downtowndougbrown.com/2013/06/legacy-apple-backup-file-format-on-floppy-disks/

import os
import pathlib
import struct
import sys

f = open(sys.argv[1], 'rb')
	#!/usr/bin/env python3

	# This is a proof of concept for controlling a LaserCube
	# (https://www.laseros.com) over the network. RUNNING THIS CODE WITH A REAL
	# LASERCUBE CAN BE PHYSICALLY DANGEROUS. PLEASE BE CAREFUL, AND, IF IN DOUBT,
	# USE THE SAFETY LENS!

	# Copyright 2021 Sidney San Martín
	#
	# Permission to use, copy, modify, and/or distribute this software for any
	// https://stackoverflow.com/questions/15095909/from-rgb-to-hsv-in-opengl-glsl
	vec3 rgb2hsv(vec3 c) {
	vec4 K = vec4(0.0, -1.0 / 3.0, 2.0 / 3.0, -1.0);
	vec4 p = mix(vec4(c.bg, K.wz), vec4(c.gb, K.xy), step(c.b, c.g));
	vec4 q = mix(vec4(p.xyw, c.r), vec4(c.r, p.yzx), step(p.x, c.r));

	float d = q.x - min(q.w, q.y);
	float e = 1.0e-10;
	return vec3(abs(q.z + (q.w - q.y) / (6.0 * d + e)), d / (q.x + e), q.x);
	}
	<!DOCTYPE html>
	<meta name=viewport content="width=device-width">
	<style>
	html, body, #app {
	height: 100%;
	}

	html {
	background: rgb(220, 0, 220, 1);
	}
	:fn sin 1
	:fn cos 1
	:fn vec2.1 1
	:fn vec2 2
	:fn vec3 3
	:fn vec3.1 1
	:fn vec3.2 2
	:fn vec4.1 1
	:fn vec4.2 2
	:fn vec4.3 3
	tell application "Safari"
	repeat
	repeat with theWindow in every window
	repeat with theTab in every tab of theWindow
	if name of theTab contains "Reserve a Time Slot" then
	set checkoutWindow to theWindow
	set checkoutTab to theTab
	end if
	end repeat
	end repeat
	# IP_ADDRESS_HERE -> 192.168…
	openssl req -newkey rsa:2048 -nodes -keyout key.pem -x509 -days 365 -out cert.pem -reqexts SAN -extensions SAN -config <(cat /System/Library/OpenSSL/openssl.cnf <(printf '[SAN]\nsubjectAltName=IP:IP_ADDRESS_HERE\nextendedKeyUsage=serverAuth\nbasicConstraints=critical,CA:TRUE'))
	# coding: utf-8

	import scene
	import motion

	preamble = """
	precision highp float;
	varying vec2 v_tex_coord;
	uniform vec2 u_sprite_size;
	uniform sampler2D u_texture;
	# Reference: https://github.com/macvim-dev/macvim/wiki/building
	class Macvim < Formula
	desc "GUI for vim, made for macOS"
	homepage "https://github.com/macvim-dev/macvim"
	head "https://github.com/s4y/macvim.git", :branch => "stateful-render"

	depends_on :xcode => :build
	depends_on "cscope"
	depends_on "lua"
	depends_on "python"
	#!/usr/bin/env python3

	# See https://www.downtowndougbrown.com/2013/06/legacy-apple-backup-file-format-on-floppy-disks/

	import os
	import pathlib
	import struct
	import sys

	f = open(sys.argv[1], 'rb')