GuruBlog : Articles about tutorial

animating a growing vine in Blender 2.6

2012-01-02T05:58:10+01:00

There are some really nice video-tutorials out there in the internets that show who to animate a growing vine in blender - unfortunately all I found are for blender 2.48 and use keyboard shortcuts that aren't working in blender 2.5/2.6 anymore.

so I tried to recreate them for the current blender-version. Here is a short video to show what the final animation looks like.

howto use svg for rigged 2D-animations in processing

2011-10-03T05:57:24+02:00

I played around a bit with svg-files and processing and learned that the PShape-Class is far more powerfull that it looks on the first glace.

This is a short tutorial that shows how I used Inkscape and Processing to make a simple rigged 2D-figure.

The code for the tutorial can be downloaded here

In processing loading and displaying svg-files is very easy. Just define a 'PShape' object and use 'loadShape' to fetch a svg-file. With the 'shape' command the graphic can be displayed in the window.

PShape boxes;

void setup() {
  size(500,200);
  boxes = loadShape( "boxes.svg" );
}

void draw() {
  background(255);
  shape( boxes, 0, 0 );
}

But when I looked at the source of the PShape class I learned that you can do far cooler stuff with these svg graphics. Every part of the svg graphics can be accessed by using the 'getChild'-method of the PShape class. So we could give the rectangles from the previous example a name and then hide them individually.

Getting Started with the VideoGameShield

2011-03-24T20:19:32+01:00

The VideoGameShield from Wayne&Layne is a arduino-shield that allows you to write videogames that run on your TV using an arduino and a Wii-Nunchuck or Classic Game Controller.

This is a short tutorial that helps you on your first steps after you have solderd your kit following these instructions.

To draw on the screen the VGS uses the TVout library. In this example I use a Nunchuck as controller. first we include all the libraries that are needet to use TVout and Nunchuck

#include <TVout.h>
#include <fontALL.h>
#include <i2cmaster.h>
#include <nunchuck.h>

then we define the structures we need to access the libraries

Nunchuck n;
TVout TV;

how to make a tentacle using processing and toxiclibs

2011-02-23T03:34:29+01:00

the Toxiclibs are a very interesting collection of processing libraries. One of the libraries is called volumeutils and allows to use a volumetric space to model a 3D object.

I used it to generate a tentacle and export it as a stl file to make it printable on my 3D-printer.

click here to see it live or download the source-code

In the setup method i define a volumetric space containing 100x100x100 voxel, a iso surface and a Triangle mesh (which is needed to display the object and export it later)

gfx = new ToxiclibsSupport(this);
VolumetricSpace volume = new VolumetricSpaceArray( new Vec3D(100,200,100), 100, 100, 100 );
IsoSurface surface = new ArrayIsoSurface( volume );
mesh = new TriangleMesh();

Processing SpaceShooter ported to Processing.js

2010-06-29T19:45:00+02:00

I just proted the example programm from my processing tutorial to processing.js. I only had to remove the private keywords from my classes and change tiny bits here and there. But i was really surprised how well everything went

click here to give it a try

processing tutorial

2009-06-19T02:02:00+02:00

I started to write a little processing tutorial, showing how to write a great sidescrolling space shooter like in this screenshot below.

please give me a little bit of feedback and show me all the great games you make with the help of my tutorial

download

tutorial.pdf examples.zip