• Download and install the Atom editor from https://atom.io
• Open Atom and go to Preferences/Settings and install the improviz plugin
• Download Improviz for you system at: https://github.com/rumblesan/improviz/releases
• Unzip it to you Desktop (or not)
• Open up a command promt:
  • Windows: Search for cmd
  • MacOS: Search for Terminal
  • Linux: (you know what to do)
• TIP: Use Tab to autocomplete the names of the folders
• Naviate to the unzipped improviz folder by typing in the following.
  • Windows: cd Deskstop-win
  • MacOS: cd Desktop/improviz-osx
  • Linux: (you know what to do)
  • And the press Enter
• Start improviz by typing in:
  • Windows: improviz
  • MacOS: ./improviz
  • Linux: ./improviz
  • And the press Enter
• Type the following into Atom and save the file as a .pz

background(0,0,255)
fill(255,0,0)   
rotate()
cube()

• Press Shift + Enter to run the code. You should now see a red cube rotating on a blue background:

About me

• VJ / Visualist
• Not a trained programmer
• But been coding websites in HTML and CSS

About you - What are your experinces so far with...

• live performance and improvisation?
• coding and programming?
• art and other cool stuff?

Live coding = to perform with code

• music, visuals, dance/choreography, poetry, weaving textiles
• showing the code
• mostly Open Source tools
• and maybe kinda broken
• most importatly: do what ever you like

Making Visuals - Concepts before code

__Outputs__
<- Colors, shapes and textures
<- Speed and patterns in spacetime

__Inputs__
-> Your intuition
-> Data streams (Midi, OSC, etc)

Improvisation

Controling chaos

"Love the mistakes/mess"

muscle Memory

"The work will teach you how to do it" - Estonian proverb

Tools for live coding visuals

Code/Language

• Language base of Processing/p5js - but simpler
• Basic 3D shapes and colors and some basic effects to start with

System

• Not running in a browser, but as a server and client(s)
• External input via OSC (and midi and audio)
• Toogle code visibily, but no “live” charachter by character edits shown
• All code is run the same time - stateless

Make it your own

• Just files and folder on your own machine - lets take a look
• Use your own pictures and gif-animations as textures
• Use your own 3D-models as shapes
• Use your own GLSL-shader as textures for your shapes

• Colors: red, green, blue, alpha
• Shapes: cube, sphere, triangle…
• Movement: move, rotate, scale
• Effects: stoke, fill, stokeSize, paintOver
• Blocks (instead of push/pop)
• Loops: repeate stuff
• Comments // turing stuff on/off)
• BUT: It’s not processing/p5js!

//paintOver()
background(0,0,255)
noFill()
stroke(255,0,0)
loop 10 times with x
  rotate(time/20)
  cube(x)

Spacetime

• variabels
• time and speed
• x, y, z
• sin and cos
• modulus

// Variabels // time OR frameCount
t = time / 2

// moving stuff AROUND
move(sin(t),0,0)
    cube()

move(sin(t),cos(t),0)
    triangle()

trinagle(2 + time % 5)

Textures and geometries

rotate()
texture(:hello1)
cube(5)

rotate()
texture(:hello1)
shape(:hello9, 1, 1, 1)

Materials and midi

Build in materials

material(:ceed)
material(:normalised)
sphere(5)

Using my own GLSL shaders as a material in Improviz

Controlling my own shaders with midi

Read sørenpeter's guide on how to use a midi controller with Imporviz

//material(:sunlolly)
material(:dwave)
//materialVar(:Time, time)
//materialVar(:TextureAlpha, 0.5)

// Midi-contol via MidiGyver
materialVar(:varR, ext(:k1, 0.5))
materialVar(:varG, ext(:k2, 0.5))
materialVar(:varB, ext(:k3, 0.5))

cube(5)

0. Code jam to music

1. Play around with the basic build in stuff

2. Use you own content

   • Textures / animations
   • Shapes
   • Shaders

3. Use OSC and Midi-inputs

   • Midi-controller
   • Audio-reactive

Demo-session // Live Performaces

• 5-10 minutes
• Pick your music
• From scracth (new file)
• or trigger your code to the music

• Monthly meetup Støberiet? First Thursdays Every mounth (October 7th)

• algoRAVE party at Mayhem or other cool venue?

• Stay connected

  • DICORD: Join the #improviz channel the Toplap Live Coding server https://discord.gg/eBE4v5ek
  • old channel on rocketchat: https://chat.toplap.org/channel/improviz
  • Facebookb: Aarhus Live Coding Community - https://www.facebook.com/groups/398075717566703
  • A new danish forum / mailinglist: https://groups.io/g/algoravedk/

• ICLC 2021 - International Conference on Live Coding - https://iclc.toplap.org/2021