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louiselessel

@itp_nyu class of 2020
Creative Technologist // New York / Copenhagen

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A still from the performance of Flickers of Light in Dark Times // Dec. 14 2019

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Behind the scenes from our performance of Flickers of Light in Dark Times. #ue4 #unrealengine #projectionmapping #interactive #visuals #motioncapture

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Will be teaching a shader workshop at Processing Community Day NYC 2020
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Getting started with shaders in p5.js
Louise Lessél and Casey Conchinha @kcconch 10-11.30am, February 8 2020
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Shaders are a great way to make moving graphics for your projects, without slowing down your sketch! They execute exclusively on your graphics card and can really supercharge your visuals. However programmers often find shaders intimidating and confusing. This ongoing project aims to make getting started with shaders much more accessible, and much less confusing. By placing shaders in p5.js where many new programmers start out, we hope to show that shaders do not need to be for advanced programmers only. ⠀⠀⠀⠀⠀⠀⠀⠀⠀
The instructors have written an online guide with tutorials (https://itp-xstory.github.io/p5js-shaders/#/) for what shaders are, how to implement them in p5.js in various ways, and how to use shaders from other ressources, such as shadertoy, in your p5.js projects.
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This is a hands-on workshop based on the online guide, and will get you started with shaders, as well as hosting your work on glitch.com.
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Sign up is necessary:
http://processing.nyc/2020/
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#p5js
#processing
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@processingorg
@glitchdotcom

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Experiment with Gray Scott Reaction Diffusion algorithm.
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[6] Variation on yesterday’s algorithm with manipulation of settings. ⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀
#touchdesigner
#itpnyu
#shaders
#generativecode

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Experiment with Gray Scott Reaction Diffusion algorithm.
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[5] Same image being fed in twice to test reaction around edges. One version is green (this adds more white to the visuals / feeds more of chemical A to the mix). The other version is red (this reacts with white and produces black / chemical a becomes chemical B). ⠀⠀⠀⠀⠀⠀⠀⠀⠀
They are slightly displaced from each other using a sine and ramp LFO chop. The two videos show slightly different settings for feed and kill rates for chemical A and B. ⠀⠀⠀⠀⠀⠀⠀⠀⠀
See my first post in this series for more info on the algorithm.
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#touchdesigner
#itpnyu
#shaders
#generativecode

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Experiment with Gray Scott Reaction Diffusion algorithm. [4] Images being fed into the system along with circular ramps. Variation on slow scaling to create trails.

See my first post in this series for more info on the algorithm.

#touchdesigner
#itpnyu
#shaders
#generativecode

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Experiment with Gray Scott Reaction Diffusion algorithm. [3] Images being fed into the system along with circular ramps. Variation on scaling.

The reactions around the edges are very interesting to me. I’ll test out this reaction more.
See my first post in this series for more info on the algorithm.

#touchdesigner
#itpnyu
#shaders
#generativecode

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Experiment with Gray Scott Reaction Diffusion algorithm. [2] Images being fed into the system along with circular ramps for modulating the reaction (green) and diffusion (red). I’m interested in how this algorithm can be used to animate static drawings. This first image being fed in is drawn by me, the second image is by @space_bat_killer (support this awesome artist!) for the band Bedroom @noahkittinger (check this music <3). The other 2 images are grafitti from the back and side of a truck I saw in lower Manhattan (let me know if you know the artist/owner!). Since the algorithm is a “living” image processing tool, the image being fed in can be of a small resolution, which is very useful for live visuals use - VJ’ing with video/large images can suck because of huge memory consumption/file sizes.

See my first post in this series for more info on the algorithm.

I’m not going to tag @polyhop in every video because I don’t want to spam him. But the Gray Scott Reaction Diffusion shader I’m experimenting with was implemented by @polyhop (and there should be a tutorial out soon from #TDsummit19). #touchdesigner
#itpnyu
#shaders
#generativecode

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Experiment with Gray Scott Reaction Diffusion algorithm. [1] Timescale variation in the composite of two ramp inputs being fed into the system.
Shader algorithm originally implemented by @polyhop (videos from #TDsummit19 are still being uploaded so it might not be available yet). The Gray Scott Reaction Diffusion is an algorithm for chemical reactions where you define the the amount of a chemical A, and the amount of a chemical B, as well as a feed rate for A and a kill rate for B. As an algorithm it is implemented in a grid system, meaning each cell reacts to neighboring cell. B reacts with A and turns into B (black in this case), B then dies off after some time.
If I’m understanding this right, the shader input varies the amount of A being fed into the system. For more info: KarlSims . com.
#touchdesigner
#itpnyu
#shaders
#generativecode

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Upcoming show: I will be showing a live motion capture dance performance X projection mapping piece this Saturday December 14th at #itpnyu. Free entrance.
Event info:
https://www.facebook.com/events/441120136803927/

Flickers of Light in Dark Times is a live motion capture dance performance about getting crushed by the adversity in urban life, and regaining strength by accepting kindness and support.
The piece plays with notions of the visible and invisible structures that surrounds us in urban life. The fully motion tracked dancer navigates the spaces in between the audiences, vexing from completely ignoring them, and acknowledging their presence as a source of strength. The audience takes an active role as they offer her support through motion tracked wisps that rattle and sprout lights in the darkness.
With Flickers of Light in Dark Times, the artists create an immersive live experience through movement, projection interactive 3D graphics and music, crafting a cohesive narrative with cutting edge technology.

Made with unreal #ue4

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Upcoming show: I will be showing my first exploration of light sculptures in the form of sentient robotic plants (my thesis topic at #itpnyu) this Thursday 12th of December at NYU. 9am-12pm. Open showing. Poster by @elvvvvvv

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Data transmitting glove for an upcoming motion capture + projection project.
For now the glove allows the performer to control the amount of light, based on how hard she squeezes the custom built velostat based sensor on the palm of the hand.
I will replace the teensy with a WiFi board and receive OSC in Unreal for the performance.
#arduino
#teensy
#wearables
#led
#textileinterfaces
#itpnyu

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Preview from yesterday’s rehearsal with @haydennthorpe and brainwave activated lights.

#touchdesigner
#choosemuse
#eeg
#itpnyu

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Tonight @nationalsawdust I’m showing my brainwave controlled lights for @haydennthorpes show. Doors at 7pm

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Test 2 of my brainwave activated lights. The lights do a 1:1 mapping of the waves (alpha, beta, delta, theta, gamma - added together to make one wave) that is generated by my brain. When I don’t focus. I get a spike. If I focus, the waves are calmer = no light.
I promise, it’s not magic. Just math.
#touchdesigner
#choosemuse
#eeg
#itpnyu

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Another low-res rendering of my brainwaves (live from brain to touchdesigner). #touchdesigner
#choosemuse
#eeg
#itpnyu

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[PART 2] Brain wave controlled lightning for stage installation, in collaboration with musician @haydennthorpe.
Demonstration of concentration vs no concentration, and lights responding. A spike in cumulative brain wave activity, creates a 1:1 mapping of the curve as a wave of light.

I’m still implementing ideas for what to do on the mapping and signal processing side.
The installation will premiere at @nationalsawdust next Tuesday at Hayden’s show. At #itpnyu this Thursday.

#touchdesigner
#choosemuse
#eeg
#lightart
#itpnyu
#workinprogress

This project is a part of the class Light as an art medium, taught by #jamesclar at ITP NYU in New York.

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[PART 1] Brain wave controlled lightning for stage installation, in collaboration with musician @haydennthorpe.
Demonstration of concentration vs no concentration, and lights responding. A spike in cumulative brain wave activity, creates a 1:1 mapping of the curve as a wave of light.

I’m still implementing ideas for what to do on the mapping and signal processing side.
The installation will premiere at @nationalsawdust next Tuesday at Hayden’s show. At #itpnyu this Thursday.

#touchdesigner
#choosemuse
#eeg
#lightart
#itpnyu
#workinprogress

This project is a part of the class Light as an art medium, taught by #jamesclar at ITP NYU in New York.

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Low-res pattern generated from accumulated brainwaves on my Muse EEG device.

#touchdesigner
#choosemuse
#eeg
#itpnyu

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A first look at what will be brainwave activated lights.

#touchdesigner
#choosemuse
#eeg

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