News: Krita 3.3.0 – first release candidate.

This release come with some improvements and features:

• support for the Windows 8 event API;
• hardware-accelerated display functionality to optionally use Angle on Windows instead of native OpenGL;
• some visual glitches when using hi-dpi screens are fixed
• several new command line options;
• the performance improvements and selections are fixed;
• the system information dialog for bug reports is improved

You can read more about this release here.

Using processing.js to test ControlP5 .

The ControlP5 is a gui library written by Andreas Schlegel for the programming environment processing.
You can add this library open the processing IDE and under menu select Tools -> Add Tool ... . Use editbox to search the library named ControlP5 .
You can find many examples on official website.
Let's see how is look the Textarea GUI using processing IDE - official website example:

Create 3D text with HTML 5 .

This is the result of this tutorial:

The example is simple and use two ways to draw text.
First use a function how make the text by using index variable to put on canvas same text.
The next use function strokeText to add to canvas the text.
The onload function is used to put on canvas all you need to see.
This is the source code for java script I used into head HTML5 tag :
window.onload = function(){
 var canvas = document.getElementById("3dCanvas");
 var canvasWidth = canvas.width;
 var canvasHeight = canvas.height;
 var ctx = canvas.getContext("2d");
 ctx.font = "20pt Verdana";
 ctx.fillStyle = "black";
 ctx.textAlign = "center";
 // first
 drawTextInCanvas(ctx , "graphic-3d.blogspot.com", canvasWidth/2, canvasHeight/2, 4);
 // the next
 ctx.strokeText('... read this website !', 150, 150);
};

function drawTextInCanvas(ctx, mytext, wdth, hght, dpth){
 var index;
 for (index = 0; index < dpth; index++) {
  ctx.fillText(mytext, wdth - index, hght - index);
 }

 // shadow casting in bottom layers
 ctx.fillStyle = "#30F30F";
 ctx.shadowColor = "black";
 ctx.shadowBlur = 6;
 ctx.shadowOffsetX = dpth+ 2;
 ctx.shadowOffsetY = dpth+ 2;
 ctx.fillText(mytext, wdth - index, hght - index);

}
Then add the canvas tag into body tag with this :
id="3dCanvas" width="400" height="200" style="border:1px solid black;"

Website tool for chemical data and infos.

Another website tool for chemical graphics and cheminformatics library.
The development team tell us:
The ChemDoodle Web Components library is a pure Javascript chemical graphics and cheminformatics library derived from the ChemDoodle® application and produced by iChemLabs. ChemDoodle Web Components allow the wielder to present publication quality 2D and 3D graphics and animations for chemical structures, reactions and spectra. Beyond graphics, this tool provides a framework for user interaction to create dynamic applications through web browsers, desktop platforms and mobile devices such as the iPhone, iPad and Android devices. This library also has complete access to the entire ChemDoodle desktop API through AJAX, allowing for quick access to one of the most robust chemical graphics and informatics packages in existence directly through Javascript. The goal of the project is to utilize the next-generation HTML5 technologies to power the scientific and educational applications of the future. iChemLabs is dedicated to funding, developing and hosting this library and has released it for free under the open-source GPL license. By releasing ChemDoodle Web Components open-source, yet continuing to financially support the library, iChemLabs ensures that the next generation of scientific applications is easily achievable by academia, government and industry, and helps to make sure that the cost of education decreases while using the web to further spread science.
This tool can be found on this website.

The Santa Tracker website for kids.

This website will help with the education of the children and more so will prepare you for the winter holidays.
Start in this adventure by clicking on the icon with the upper left lines and you have access to Santa's surprises.

Using processing.js to make a rotating ball effect .

This tutorial show us how to make a rotating ball effect. You can see the background is not black and the reason is the background is set just into setup function. Another part of this effect is the rect function from draw. This rect will clean the ball. The ball is a ecllipse function with a size a 10. The pushMatrix function pushes the current transformation matrix onto the matrix stack.

float angle;
int dist_ball = 100;

void setup() {
  size(800, 600);
  background(0);
}

void draw() {
  fill(20,20);

  noStroke();
  rect(0,0,width, height);
  fill(255);

  translate(width/2, height/2);

  rotate(angle);

  pushMatrix();
   rotate(angle);
   translate(dist_ball,0);
   ellipse(0, 0, 10, 10);
  popMatrix();
 
  angle += 0.1;
}

The result is this effect:

Chrome - fix WebGL issue.

This error can be show you with Chrome browser.

To fix this you need to try this ways :
First, You need to open into browser settings into new tab: chrome://settings .
See if the Use hardware acceleration when available under Advance is set to True, if not then set this to True .
Take a look at chrome://gpu into new tab and see if is something with red color.
This may be a problem and try to see what is this error. Also check the chrome://flags and wee the WebGL options you have it.
For example: I fix my WebGL by enabling the WebGL Draft Extensions even the webgl CheckerImaging: Disabled is show with the red color on tab chrome://gpu.
This can be enable under chrome://flags.
The WebGL Draft Extensions Mac, Windows, Linux, Chrome OS, Android allow us:
Enabling this option allows web applications to access the WebGL Extensions that are still in draft status.

Using processing.js to make a clock.

Is a simple way to make and test processing.js online by using this online tool.
First you need to sign in into your account and use button : Create a Sketches .
This will open your open the editor. Now you need to add this source code:

void setup() {
  size(200, 200);
  stroke(10);
  smooth();
}
void draw() {
  background(255);
  fill(0);
  noStroke();
  // Angles for sin() and cos() start at 3 o'clock;
  // subtract HALF_PI to make them start at the top
  ellipse(100, 100, 160, 160);
  float s = map(second(), 0, 60, 0, TWO_PI) - HALF_PI;
  float m = map(minute(), 0, 60, 0, TWO_PI) - HALF_PI;
  float h = map(hour() % 12, 0, 12, 0, TWO_PI) - HALF_PI;
  stroke(255);
  strokeWeight(1);
  line(100, 100, cos(s) * 72 + 100, sin(s) * 72 + 100);
  strokeWeight(2);
  line(100, 100, cos(m) * 60 + 100, sin(m) * 60 + 100);
  strokeWeight(4);
  line(100, 100, cos(h) * 50 + 100, sin(h) * 50 + 100);
}

The source code is simple:

• one first function setup will set size area and some line settings; 
• the draw function loops continuously to draw your work. 

Into the draw function I create a clock design and the movement is follow by time.
Because this is analog clock , I used sin functions to move the line to show the analog clock hands for time.
Take a look into the right area and will see three vertical dots.
Use mouse and a side panel will show you. In this panel you can set Settings and upload Files.
The Settings will come with the Mode to set the javascript - P5js/Processingjs and Tabs to show/hide your work.
Let's see how is working:

The Lithosphere Terrain Generator.

This is a 3D software for terrain generator named lithosphere.
Is simple to use it because use nodes.
You to create and export material textures and heightmaps intended for use in realtime graphics applications.

Features

• Realtime terrain modification
• Save/Open of scene.lth files
• Simplex noise height source
• Wind and Erosion algorithms
• Gaussian Filtering
• Mixing and Adjusting
• Mathemathical operators
• Float array and DXF mesh export
• PNG texture export

Requirements

Lithosphere requires a fast computer and graphics card to operate. It also requires specific opengl compatibility

• OpenGL shading language version 1.20
• GL_ARB_texture_float
• GL_ARB_pixel_buffer_object
• GL_ARB_vertex_buffer_object
• GL_ARB_framebuffer_object

Recommended system specs

• Intel Quad Core CPU
• 2gb RAM
• Nvidia Geforce GTX-285
• 1gb video ram

Working with

• Nvidia Geforce GTX-285
• Nvidia Geforce 8800 GTS
• Nvidia Quadro FX1700 512mb

Opera : Make an animated wallpaper.

In this tutorial I will show you how to make your animated wallpaper for Opera browser.

First you need to create a folder.

In this folder you need to have three files:

• one video file that is show on browser named: video.webm;
• one file with a same size like video file named: cover.jpg;
• one file named : persona.ini;

The image file cover.jpg is the first frame from video file: video.webm.

The file named persona.ini come with this text:

; Licensed under CC-BY 
; Video by cascada internet gif 
;
[Info] Name = yourwallpaper 
Author = Your name 
Author URL = Your URL website 
Version = 2 
[Start Page] Background = video.webm 
Position = center bottom 
[Web UI Pages] Background = cover.jpg 
Position = center bottom 

I used Blender 3D to make my video and extract the first image for cover.

You can find many tools on web to solve this issue.

Unzip all this three files into one zip named: yourwallpaper.zip.

You can test your animated wallpaper using drag and drop into wallpaper area from your browser.

Also , you can upload it to Opera browser addons.

You can download this animated wallpaper from here.

I used a animated gif of Shiraito Falls (is a waterfall in Fujinomiya, Japan) from internet and Blender 3D to make my own animated wallpaper for Opera browser.

The Magic Actions for YouTube addon .

The Magic Actions for YouTube is an addon that makes a beautiful dynamic lighting effect around the player on YouTube and come with many features for videos:
This addon can be used with Opera , Firefox and Chrome and can be found here .

Try processing js on Android OS.

If you like to code in processing.js, then this application will fulfill your wish on your phone or tablet with android operating system.
The APDE - Android Processing IDE requires the following permissions:

• modify and delete the contents of your USB storage - required to save sketches to the external storage 
• control vibration - required to provide haptic feedback, which can be turned off in Settings 

This includes a quick-run JavaScript - Sandbox and a tutorials that are explained in more details.
The development team from CalsignLabs has just one person.
This tell us about this alpha released application:

APDE (Android Processing Development Environment) is an integrated development environment for creating Processing sketches on your phone/tablet. APDE supports the full edit, compile, and run cycle. You don't need a computer or an SDK to start coding on the go.

The application can be found on google play here.

Huge image with earth map .

You can get a huge image with earth from here.
The resolution of this image is 21600x10800 and the size on hard disk is 28.3 MB . See a smaller version of this image: