Computers cannot generate truly random numbers. Why that is, and why it actually is an advantage for animators is demonstrated in this video tutorial by Frederik Steinmetz. Discover what a seed value is and when and how to use it.
A lot has changed since we first published the introduction to the animation nodes. So once again Frederik Steinmetz will explain the installation and basic usage of Jacques Lucke's Animation Nodes Addon for Blender. A tutorial for version 2.8 of Blender can be found here!
b°wide has provided the community with a great pack of predefined node groups you can use in many situations. They are a must-have for any more sophisticated project. You can get them here. To enable the setup, you first have to select all the channels and then connect all in- and outputs. That can be very tedious, here is a one-click-solution.
This article is about baking normals with the Cycles Render Engine. But it also contains excerpts from our book The Cycles Encyclopedia. This is where you can get extensive information about how normals work internally and what they are used for.