Published on: 2025-06-22 11:17:50
Multivariate normal sampling can be wildly irreproducible if you’re not careful. Sometimes more than others. There are eldritch horrors, ill-conditioned matrices, and floating point nightmares in here. Teaching sand to do linear algebra was a mistake
Keywords: algebra careful conditioned eldritch floating
Find related items on AmazonPublished on: 2025-07-04 11:37:55
This post is a more carefully thought out and peer reviewed version of a floating-point comparison article I wrote many years ago. This one gives solid advice and some surprising observations about the tricky subject of comparing floating-point numbers. A compilable source file with license is available. We’ve finally reached the point in this series that I’ve been waiting for. In this post I am going to share the most crucial piece of floating-point math knowledge that I have. Here it is: [Fl
Keywords: double float numbers pi sin
Find related items on AmazonPublished on: 2025-07-18 12:00:04
WebMonkeys Allows you to spawn thousands of parallel tasks on the GPU with the simplest, dumbest API possible. It works on the browser (with browserify) and on Node.js. It is ES5-compatible and doesn't require any WebGL extension. Usage On the browser, add <script src="WebMonkeys.js"><script> to your HTML. On Node.js, install it from npm: npm install webmonkeys --save The example below uses the GPU to square all numbers in an array in parallel: // Creates a WebMonkeys object const monkeys
Keywords: 16 float monkeys set webmonkeys
Find related items on AmazonPublished on: 2025-07-19 05:56:12
When I recently looked at the state of the art in floating point random number generation, I was surprised to see a common procedure in many programming languages and libraries that is not really a floating-point algorithm: Generate a random integer with bits chosen based on the precision of the format. Convert to floating point. Divide to produce an output between 0 and 1. In code, this looks like: 1 func ( r * Rand ) Float64 () float64 { 2 int64 rand_int = r . Int63n ( 1 << 53 ) 3 return fl
Keywords: floating number numbers point random
Find related items on AmazonPublished on: 2025-07-20 04:00:04
WebMonkeys Allows you to spawn thousands of parallel tasks on the GPU with the simplest, dumbest API possible. It works on the browser (with browserify) and on Node.js. It is ES5-compatible and doesn't require any WebGL extension. Usage On the browser, add <script src="WebMonkeys.js"><script> to your HTML. On Node.js, install it from npm: npm install webmonkeys --save The example below uses the GPU to square all numbers in an array in parallel: // Creates a WebMonkeys object const monkeys
Keywords: 16 float monkeys set webmonkeys
Find related items on AmazonPublished on: 2025-08-22 17:54:53
A flowing WebGL gradient, deconstructed April 12, 2025 A few weeks ago I embarked on a journey to create a flowing gradient effect — here’s what I ended up making: Loading canvas... This effect is written in a WebGL shader using noise functions and some clever math. In this post, I’ll break it down step by step. You need no prior knowledge of WebGL or shaders — we’ll start by building a mental model for writing shaders and then recreate the effect from scratch. We’ll cover a lot in this pos
Keywords: canvas color float noise vec3
Find related items on AmazonPublished on: 2025-08-31 12:25:13
In computer graphics, we rarely encounter continuous data. We often work with digital data, and in the context of geometric modeling, this means we typically work with polygon meshes rather than procedural surfaces like Bézier patches. The most popular technique for constructing digital three-dimensional objects in dedicated modeling software is polygon modeling. The result of the creation phase is a set of polygons (mesh), where the polygons in the mesh can share vertices and edges with other p
Keywords: beta float gamma shader vec
Find related items on AmazonPublished on: 2025-09-21 14:10:07
Disclaimer: there’s nothing wrong with using a sdf this way. Recently, my good friend Mike Brondbjerg posted this on Twitter: Dark Matter: 50,000 particles passing through a field until they hit a hidden sphere. By varying the distance travelled each step, the collisions are more / less accurate, so creating a nice fuzziness around the spheres. #generative #design #creativecommuting #creativecoding pic.twitter.com/gmFEV7fCwk — Mike Brondbjerg (@mikebrondbjerg) January 15, 2020 You can follow
Keywords: direction distance float point sdf
Find related items on AmazonPublished on: 2025-09-25 07:45:00
is a reporter focusing on film, TV, and pop culture. Before The Verge, he wrote about comic books, labor, race, and more at io9 and Gizmodo for almost five years. A Shinichirō Watanabe production wouldn’t be complete without an absolute banger of a soundtrack, and his upcoming Adult Swim series Lazarus is no exception. Ahead of Lazarus’s premiere on April 5th, Adult Swim has released three singles from multi-instrumentalist / composer Kamasi Washington, British DJ Bonobo, and producer Floating
Keywords: adult bonobo floating lazarus points
Find related items on AmazonPublished on: 2025-10-03 02:00:00
Not every large object in space forms part of a solar system. There are some big objects that exist in isolation in space, without either being a star or orbiting one. One of these, SIMP 0136, wanders aimlessly in the Milky Way, about 20 light years away from Earth. It has a mass about 13 times that of Jupiter, and is thought to have the structure and chemical composition of a giant gas planet, though its true characteristics have not yet been determined. Such untethered objects are typically c
Keywords: 0136 floating simp space star
Find related items on AmazonPublished on: 2025-10-14 04:00:00
Imagine hopping onto a large floatie in a lake or pool, and then trying to move. We’ve all been there—without paddling limbs, wind-catching sails, or a propelling engine, you’re stuck. But what if we could make the water itself move you? An international team of researchers has developed a technique to manipulate water and move floating objects with a level of precision that seems right out of a sci-fi movie. Beyond its inherent cool factor, this research could have practical applications, rang
Keywords: floating objects researchers water waves
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