Curvature of the Mind

Thoughts from a Recreational Physicist

New Feature – Download demo image

November 28, 2013 by Andy Brummer 1 Comment

Atomic Orbitals demo imageI’ve been revamping the site, working towards a more visual layout.  Part of that has been going through old posts and attaching an image to every single one of them.  Some of them just needed selecting an image from the content, and some needed an entirely new image generated from the demo code.  In the past, that has meant capturing screenshots or uploading the image to a service like imgur.

I figured there has got to be a better way, so with a little bit of simple research, and adding some angularjs to the site, I’ve added a helpful download button to many of the javascript demos on the site.  This includes the 3D Harmonic oscillator demo, and the Atomic Orbital demo as well.

While that makes things easier for me, it also makes the site much more useful in general. Now you can pick out an orientation for an atomic orbital and snap a quick shot of it however you want.  Or you can build your own fractal and grab a copy of it.

I’ve also gone through the old catalog and updated pages making sure they all still work.  A number of those early projects were one off simple demos.  While neat, I don’t think they’ve lived up to their full potential because of the limits in parameterizing them and putting multiple copies on a single page.  Now that I’m rewriting them using angularjs I’ll be able to integrate them much more richly into my writing.

I’m jonesing to take full advantage of much of the code I’ve written.  I’ve only done two basic posts based on a javascript based geodesic solver I’ve written for Schwarzschild black holes.  There is so much more I can do with that.  I haven’t touched on the Doppler effect in the speed of sound demo, or added relativistic effects.

Filed Under: Experiments, Images Tagged With: canvas, demos, javascript

More crossing lines images.

February 20, 2013 by Andy Brummer 2 Comments

crossing lines modulo

I haven’t had much time to play with the crossing lines. I do like their simplicity and the way they can create complex crossing relationships. I’ll be playing around with braids next, and integrating differential equations and chaos of course.

Filed Under: Experiments Tagged With: generative art, html5, javascript, op art

Varying circle grid and color

January 11, 2013 by Andy Brummer Leave a Comment

varied circle spacing and colorPretty intense, yet some unexpected effects.

Filed Under: Experiments, Images

Roiling sparks

December 14, 2012 by Andy Brummer Leave a Comment

dots nice effectContinuing on with experimenting with grids of circles.  I’ve cranked up the randomness, the alpha channel and the circle size on this one.  It works really well with some animation.  I might consider this technique to add some interest to the quantum mechanics demos to draw the eye to the density functions.

 

Filed Under: Experiments Tagged With: algorithmic art, html5, javascript

Experimenting with pixel sizes

December 13, 2012 by Andy Brummer Leave a Comment

Playing around with grids of colored dots

Playing around with grids of colored dots

I’d been rather unmotivated with a number of projects that I’m working on, but going through my inspiration board on pinterest got me fired up again.  I’ve got a few more experiments on the way.

Filed Under: Experiments, Images Tagged With: algorithmic art, html5, javascript

Generative Convergence #2 – Ghosts

November 30, 2012 by Andy Brummer Leave a Comment

This is a companion to the last image, the Dirac Delta Function is moved over to the right and some of the intensity parameters have been punched up a little.  These are really starting to resemble the transition energies from atomic orbitals.  I’m still on track to add another level of complexity before I start messing with the colors, even though I’m going way far away from my initial goal of trying to replicate a thick paint stroke.

Filed Under: Experiments, Images Tagged With: fractal, generative art

Generative convergence #1 – Shadows

November 29, 2012 by Andy Brummer Leave a Comment

I wasn’t aiming for something this sparse, or this kind of vertical pattern, but it turned out like a more refined version of some of my other experiments.  This method is interpolating a function that resembles a Dirac delta function centered at 1/2, the other lines are reflections of that central spike.

Filed Under: Experiments, Images Tagged With: fractal, geerative art, geometric

More one dimensional generative experiments

November 28, 2012 by Andy Brummer Leave a Comment



These are some more images I’ve created on my way to generating a realistic brush stroke.  Given how much I’m liking these, and some more experiments that I’m cooking up, I’m not sure if I’ll ever get to the brush strokes.

Filed Under: Experiments, Images Tagged With: fractals, generative art

New Technique – Iterated function system interpolation functions

November 26, 2012 by Andy Brummer Leave a Comment

I’m working on a technique to create heavy textured straight brush strokes.  There are a number of abstract paintings using textures I’d like to reproduce.  I’m definitely a way off, but I’m liking some of the results so far.

What separates these from the fractals I’ve generated in the past is that they have a one dimensional linear component, and a single valued transverse component.  Previously the fractals have all been 2 dimensional with more complicated structures, which would be multi-valued.

A big advantage of this is that I only have to compute one value per point and don’t have to use any alpha values.  Here are some of the initial experiments.

 

 

The goal was to produce a rough edge as the “brush” lifted off, but I’m liking a bit of the texture on the most intense part of the “stroke”

Filed Under: Experiments, Images Tagged With: fractal, iterated function system

This is what additivity gets you

November 19, 2012 by Andy Brummer Leave a Comment

These are all variations on some of my earlier vector field renderings.  These take two different vector fields and show render paths for various sums of the vector fields.  There isn’t anything really surprising in the images, but they are attractive nonetheless.


Filed Under: Experiments, Images Tagged With: creative coding, generative, op, vector field

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    • IFS fractals: 2 transformations
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