toxi, 4 months ago to ArtificialIntelligence

Nothing new, but maybe a little unusual: Using boids as alternative to Lloyd relaxation and/or Poisson-disk sampling. The boids here are using only two behaviors: local separation, plus a randomized attractor to create global disturbances. Cell density could also be varied by spatially adjusting the separation distance between boids. Overall convergence/relaxation can be much faster than shown here...

#Boids #Voronoi #Algorithm #PoissonDisk #ComputationalDesign #Physics #Simulation #GenerativeDesign #ThingUmbrella #TypeScript

toxi, 4 months ago to Typography

Combining https://thi.ng/boids (agent/particle sim, behaviors) with https://thi.ng/geom (SVG path parsing, resampling & conversion), https://thi.ng/geom-accel (hash grid for spatial indexing & k-nearest neighbor lookups) and https://thi.ng/hiccup-canvas (visualization)...

#Typography #Path #Agents #Boids #Particles #Simulation #Behaviors #Generative #GenerativeArt #TypeScript #ThingUmbrella

~30 sec animation of a few thousand particles first being spawned on the outline of the letter "S", then starting to spread & flock whilst being disturbed by & attracted by randomly moving targets in the surrounding space

toxi, 4 months ago to generative

Re-added/ported more agent behavior building blocks today, incl. path following and path attraction (both for open/closed geometries). In total there're now 7 freely combinable behaviors, each weighted and so usable as soft/hard constraint.

Here's an example of path following (here a Hilbert curve) and separation only...

#Agents #Boids #Particles #Simulation #Behaviors #Emergence #Path #Curve #Hilbert #Generative #GenerativeArt #TypeScript #ThingUmbrella

Several hundred agents (represented as colored circles) are moving along a 2D path (Hilbert curve). Each agent also has a white line overlay to visualize its current velocity vector

toxi, 4 months ago (edited 4 months ago) to generative

Boids now with modular behavior system, incl. newly added field-based 3-sensor Braitenberg vehicle steering behavior. In this case the field is an SDF (via https://thi.ng/geom-sdf), which is used as obstacle map with soft boundary. I'm amazed how well (and without any further help) the lil' buggers are managing to escape these concave corners...

#Agents #Boids #Particles #Simulation #Behaviors #Emergence #Generative #GenerativeArt #TypeScript #ThingUmbrella

toxi, 4 months ago to generative

Been debugging boids & behavior combinations all evening! Happy to say, I think all force contributions are fixed now (classic off-by-one error was leading to an initially subtle but increasingly obvious directional bias), and I can focus again on experimenting with some new amazing emergent behaviors... Aside from that, maybe this also qualifies for #Genuary2024 (Day 1: Particles)?!

Btw. This is just a variation of this #ThingUmbrella example project:

https://demo.thi.ng/umbrella/boid-basics/

...which was created as part of last year's #HowToThing series:

https://mastodon.thi.ng/@toxi/111308439597090930

#Agents #Boids #Behaviors #Emergence #Generative #GenerativeArt

toxi, 5 months ago (edited 5 months ago) to random

Note to ADHD brain: Get your act together and finish work on S-TRACE, one of maaany unfinished projects started last year... A mini thread of some WIPs...

This thought was triggered by @meuns's post about Radiance Cascades:
https://mastodon.gamedev.place/@meuns/111489830458139216

#GenerativeArt #LightArt #SDF #SphereTracing #Agents #Boids #STRACE

1/x

villares, 5 months ago to python Portuguese

#Processing #Python #py5 #numpy #flocking #boids based on the "From Python to Numpy" example
https://github.com/villares/sketch-a-day/blob/main/2023/sketch_2023_11_23/sketch_2023_11_23.py

flocking simulation where the number of neighbours at a distance range changes the color of the boid (blue lonely, magenta intermediate, red crowded)

villares, 6 months ago to python Portuguese

Hey #Python #numpy friends, which is better/faster? Are they the same?

triangles_conc = np.concatenate((a, b, c), axis=1).reshape(-1, 2)<br></br><br></br>triangles_stack = np.hstack((a, b, c)).reshape(-1, 2)<br></br>

Context: Drawing "boids" as triangles.

triangles = np.hstack(<br></br>        (left_points, right_points, head_points)).reshape(-1, 2)<br></br>with py5.begin_shape(py5.TRIANGLES):<br></br>    py5.vertices(triangles)<br></br>

#py5 #boids

villares, 6 months ago to python Portuguese

Preciso trabalhar no doutorado, mas acabei de achar um lance massa que preciso estudar para mostrar 28/11 no Sesc na atividade de simulações biológicas #Boids #Flocking #Python #pygame #Emergent #Simulation #PyNBoids https://github.com/Nikorasu/PyNBoids

surabax, 10 months ago to Lisp

The original flocking behavior model #Boids that was developed by Craig Reynolds at #Symbolics for "Breaking the Ice" is available here in all its pre-Common #Lisp glory: http://www.red3d.com/cwr/code/boids.lisp

The #SIGGRAPH 87 paper: http://www.red3d.com/cwr/papers/1987/boids.html

#SymbolicsGraphicsDivision #LispM #LispMachines #ComputerGraphics #CGI #VFX #Rendering #Art #DigitalArt #Animation #ComputerHistory #History #Retrocomputing #ArtificialLife #Swarms #Robotics #GenerativeArt

toxi, 10 months ago (edited 10 months ago) to opensource

#Marblemania - A form and motion study inspired by marbling techniques like French curls and #Suminagashi (Japanese style), but also by the beautiful shapes and movements of Von Kármán vortices and the space-filling skin patterns of Bornella anguilla (aka the "Circle Packing" nudibranch)...

Update: Original 07/07 launch aborted, new release details TBC...

#GenerativeArt #WebGL #Boids