Noise

Ashima Noise External Texture Warp (Composition by gtoledo3)

Author: gtoledo3
License: Creative Commons Attribution-NonCommercial
Date: 2012.06.25
Compatibility: 10.4, 10.5, 10.6, 10.7
Categories:
Required plugins:
(none)

This is a GLSL shader that is a "texture warp/distortion" effect.

It uses the Ashima Noise implementation that's been kicking around lately, that I particularly like and think looks nice and organic.

I'd used it for generating patterns, but had the idea a month or so ago to use the noise to perturb in input texture - which didn't occur to me at first since the whole deal was that it's a "textureless" noise implementation, but I'm glad it did!

After I had that hanging around for awhile, I decided to add some simple "feedback" loop facilitated lighting, which has a kind of eerie look :-)

I've been able to generate really cool looking abstract landscape type looks by feeding textures that have those kind of colors going on, and macerating the texture to taste. I've also achieved some pretty gross "melting flesh"/"monster" looks as well. I've had some fun with this filter in the past while, and I hope you all do as well. :-)

Go through the "Mode" values to checkout the various basic looks, 4 Modes in all.

"Amount" will increase the amount of the rippling, while "noiseFreq" will tend to increase the density of rippling per area.

"Speed" controls the pace of distortion fluctuation.

"Bump" will do some stuff to the .z channel to mess with the lighting a bit in modes where it's active.

"Spot R1/R2" control the throw of the mouse active light.

"gammaOn/gamma" controls gamma (psonice's gamma code...if it works, why not use it?).

Then there's some color channel offset stuff.

Static (Composition by gtoledo3)

Author: gtoledo3
License: MIT
Date: 2012.06.21
Compatibility: 10.5, 10.6, 10.7
Categories:
Required plugins:
(none)

This is a glsl texture filter that makes a look sort of like a tv with a decent amount of noise and static. It's not really too accurate as far as depicting what a noisy tv really looks like, but it's not too bad for a lo-fi look.

Mesh noise

Udart's picture

Here's a comp I made playing with mesh noise. It's for a specific project hence the strange 2:1 format.

Does anybody know whether I can get a higher 'resolution' reducing some of the horrible jagged edges? They seem to me to be more jagged than other un-antialiased things I've seen in Quartz.

grass scene (Composition by dust)

Author: dust
License: Public Domain
Date: 2012.04.09
Compatibility: 10.6, 10.7
Categories:
Required plugins:
(none)

just a simple mesh grass and tree scene, utilizing mesh filters and noise to create animations in an otherwise static scene. I'm getting a solid 60fps with both mesh and wire images combined. you might want to take out the wire images to speed things up or to add etc... mesh files made with maya and attached.

jelly fish dancing

dust's picture

so i tried opening a garage band for iPad file on my mac today and came up with some interesting results. so i decided to make a few reactive screen grabs. next step is to process farther by opening the mac garage band file in logic but its ok for a couple screen grabs. defiantly want render it out in crystal as well.

the file is floating around here some where. search underwater or bentUrchin.....

so seeing i was having so much fun with apple stuff i decided hack up the lion smoke dancer patch with a low fi shadow dancer look.

eventually i want to make the bad tv interlacing lines be a spectrum eq and also render the fluid sim with occlusion. kind of a lot for my computer handle realtime all that..

here is the raw 8bar loop i made with garage band on the iPad. its kind of interesting to hear the raw music before it was mashed. I'm not using any of the auto play features just the gb instruments.