Create a rope

A rope created with Blender:

Following the really good (and short) tutorial by Adrian Kubasa:

Moon integrated to real picture

A moon inserted in a real photo using Cycles. Waiting for your feedback and critics...

Now by replacing the Alpha over node by a mix node set to add, the moon seems to be outside earth atmosphere, which is far more realistic. Thanks Steve ;-)

A quick video to show briefly the way to do it:

How to play with rigid bodies generated from particles system

3 minutes to learn how to generate rigid bodies from particles system.

Audio with Google text to speech API.

Bullet physics integrated in a real photo

Particles were separated from particles system (using ctrl-shift-a) then integrated in a real photo...

And now with coins bouncing on the table:

Bouncing is exagerated to give a splash effect on the table.

Rigid bodies collision boxes are UV mapped using project from view.

Scene is not realistic anyway but it is more a demo on what can be done using the rigid body feature in Blender 2.68.

Money dream

Using Blender 2.68 with particles system for coins.

Money Money Money - 400 € in 10 seconds with Blender

Using blender particles system with 200 particles. Coins bouncing is made by using a plane (not rendered) with collision properties. Particules rotation, random velocity and brownian force are set to the particules system.

The only problem is that particle system do not support collision between particules. So coins may appear as if they were mixed up... Any solution?

How to add compositing nodes to a single object using pass index (without multiple renderlayers)

Sometimes you want to add only compositing nodes to specific objects in your scene.
The most common way to do this is to use multiples renderlayers. Anyway, this method is quite long and implies long calculation times as new layers have to be rendered individually.

Another usefull way is using the pass index settings:

1- Select the object on which you want to add composite nodes. In "Relations", set the "Pass Index" from 0 to 1. This index will identify the object in the Node Editor.

2- In the RenderLayers tab / Passes, check the Object index box:

3- Open the Node Editor and add the following nodes as depicted below:

 The ID Mask purpose is to filter the object pass index you entered at step 1. Then by mixing the RenderLayer image with a black image and applying the alpha output from the ID Mask node to the Fac input of the mixing node, you get only your object on a black background. A Chroma Key node can then be used as well to add a transparency mask.

Here is a quick video to show you how to blur a single cube in a scene with multiple objects:

Hope this is usefull.

Rotating rings with Cycles - 10 rings around a metal sphere

First rendering with Cycles.
400 Samples and 24 hours calculation time.

With some compositing (glare and blur for the sphere) :

Now full animation with compositing (glaring sphere). Rendered with 100 samples only so quality is quite bad. Soundtrack added as well (youtube audio):

Rocket take off - test 1

First try to create a rocket take off with smoke.

Actually, I used a cone emitting particules and just insert a keyframe changing the size of the smoke flow (from 0.1, could not be 0, to 8)

Main problem is that the smoke appears with bubbles of smoke and not fluently from the rocket.

Any idea on how to solve this?

Thanks in advance.

Blender Normals tutorial in 1 minutes

Understanding Blender normals in 1 minutes :

- displaying normals
- flip direction
- recalculate

Tintin on the moon - 3D rocket model

I just finished the 3D model of the rocket from "Tintin on the moon".

This is quite simple but it took me some time anyway.

You can use it freely. 

Blend file is available here: Tintin rocket.blend

Blender Python scripting tutorial - 4 mins to start playing with python in Blender

In 4 minutes, learn how to :

# use the info view to retrieve commands
# create a new (pre-defined) object
# resize the selected object
# give a name to the selected object
# create a new material
# assign a material to an object
# set a keyframe for selected objects (location)
# translate the object with new keyframe
# select / unselect objects / select all objects
# review the system console for messages and errors

Psychedelic rubik's cube

One cube filled with smaller ones (3 different colors). Holes left inside it. Each cube can move freely (and randomly) inside the box.

Now let's add some colors and cube rotation:

Python script can be found here: https://drive.google.com/file/d/0B2BWubg0Qrg4ZlRLd012eUd5Skk/edit?usp=sharing

Blender cubes random moves experimentations (python scripting)

One cube filled with smaller ones. Holes left inside it. Each cube can move freely (and randomly) inside the box.

Some variations around the number of cubes and number of holes.

Camera tracking experimentations

Blender camera tracking experimentions with icosphere random moves.