Month: February 2015

The matrix

(under construction)

Review of Jitter tutorials:

tutorial 1: play a Quicktime movie

• bang sends a matrix (once)
• jit.fpsgui for debugging
• How would you play a movie play backwards?

tutorial 2: build a single plane matrix

• Anything can be transformed into a matrix
• Create a matrix, row by row, using math (p fillmatrix)
• How to get and set individual cells in a matrix
• jit.matrix
• How would you make pixel art? a drawing program? a spectrum display?
• A lot of specialized Jitter objects are abstractions that do what this tutorial demonstrates – i.e.., building or transforming the planes of a matrix

tutorial 3:  math operations on entire matrix/plane

• @op (is an attribute) : was it good design in Max to have both messages and attributes?
• scalar, vector
• pass
• integer/float
• What happens in a jit.pwindow with display size smaller than the matrix?
• upsampling/downsampling

tutorial 4:  movie playback.

• jit.qt.movie will play back URL’s (audio and images) – but you can’t work with the sound in Max without Soundflower
• scrubbing and looping produces interesting fx
• hardware controllers

tutorial 5: ARGBI

• Rearranging planes
• 8 bit char data type 0-255
• line object (grain size)

tutorial 6 : color

• scalebias:  normalized 0.->1. values, not with 0-255 values (look at the subpatcher)
• planemap attribute for jit.matrix

tutorial 7: hue and BRCOSA

• 2 very different ways of transforming (i.e., filtering) color and light
• Why do we seen green with emphasis and detail?
• hue angle is a way of gradually shifting around the color wheel.

tutorial 8: simple mixing

• jit.xfade
• line object

tutorial 9 – more mixing

• Using various operators to transition, with jit.op, and using jit.scalebias to scale the input values to prevent clipping

tutorial 10 – chromakey

• doesn’t need to be green.
• Could you do a performance where you paste yourself into a band video.
• napoleon dynamite
• actual green screen

Experiments

• video feedback, digital and analog, rotation, matrix resizing, inversion https://reactivemusic.net/?p=18366
• Frame subtraction (Adam Rokhsar) https://reactivemusic.net/?p=7005
• Psychedelics https://reactivemusic.net/?p=12606
• Vizzie verses Jitter

Max 7 lessons review

• fantastic sounds
• RGB music
• geometric dreams

State of the art:

Assignment

Design a project that will be due at the mid-term. Send me an email next week describing the project.

Continue working through the Jitter tutorials 4-12

Design a prototype of a synthesizer that generates accompaniment for animated GIF’s

News

There will be no class next week February 10th

References

Andrew Benson’s Jitter recipes: https://cycling74.com/search-results/#gsc.tab=0&gsc.q=jitter%20recipes