Materials and environments inspiration from Iceland
February 7 2017 12:44 AM
Here are 44 inspiring pictures taken in Iceland this summer; all in public domain. Get more info on this trip.
...
Blog
Texturing introduction slides
December 15 2016 1:06 AM
Tonight, I presented a talk at the 24th and last one of 2016 APIHour. I introduced the 3D world, then the different mesh texturing aspects.
- Live version: jbouny.github.io/texturing-intro-slides
- Repository: github.com/jbouny/texturing-intro-slides
Here are my slides, released with reveal.js and some WebGL/three.js examples inside. Moreover, slides are illustrated with talented artists creations; don’t hesitate to check their work.
...
A trip to Iceland
September 15 2016 1:16 AM
Some pictures from a trip to Iceland in August 2016, also known as “sheep land”.
...
Server side images and animations generation with node
July 3 2015 4:29 PM
On my spare time, I work on several projects. One of them is a twitter game on which I work with other people. This is a thinking game consisting in solving a problem with an instruction sequence. The bug must reach the goal with fewest instructions and displacements possible.
Currently, this is a twitter game. Every day, a new challenge is sent in a tweet. People can reply to the tweet with their instructions; then the bot reply to them with their score. One of the interest of the game is to have a feedback when someone tries to resolve the challenge.
This article explains a simple way to generate an image (png) or an animation (gif or webm) on the server side, with a Node.js server.
Example of the generation of a png image or a gif animation with a request.
...
WebGL LOD implementation
June 9 2015 4:56 PM
This article explains how to implement a simple level of detail (LOD) which can be used as a module for easily rendering large dynamic or static shapes. This implementation currently work with WebGL and the Three.js library but can effortlessly be adapted.
In my previous blog post, I was speaking about a way to increase performance when rendering a large terrain or water. This way was a grid in screen space projected in the world space. Even if it is a cool idea, there are some flaws with it. Indeed, vertices slides in the 3D plane, generating weird effects. I mentioned very quickly (too quickly in fact) the concept of level of detail. Further this article, I had several conversations with “LOD lovers”.
This is in order to really compare both methods I made a simple LOD implementation in WebGL. The aim is to have a modular implementation which can be reused with as few as possible CPU instructions.
Projected grid VS LOD live demo
...
Screen space projected grid with GLSL and WebGL
May 10 2015 2:51 PM
When rendering a large terrain, surface water or other elements, we have one problem: How to obtain a great quality when rendering but avoiding too many vertices?
One common way to optimize the number of vertices, is to use a level of detail (LOD) implementation.
The surface is divided into a grid of patches. The resolution of each patch will be computed depending of the distance to the viewer.
This method has several pros and cons. Even if it allows a relatively constant resolution, it needs a pre-processing and can cause a couple of artifacts between patches.
You can found a full explanation here, on wikipedia, or test various implementations.
...