How do 3×3 matrices rotate and scale points?

This is the second installment in a series of articles to help explain and develop intuition surrounding what is sometimes mistakenly perceived to be a difficult subject.

A tool free to download for XSI, that mimics the Tab menu from Houdini and Nuke.

A great way to speed up your workflow.

A complete guide to retiming particles in ICE.

The techniques discussed in this article were used for Sky Sports’ “Super Sunday” television ident at The Mill, earlier this year.

If you’ve ever wondered how to use multiparms in your own assets and tools, then this four page tutorial will show you how.

It also covers how to link expressions to them, and a couple of other tricks too.

This is a simple but in depth 4 page tutorial on how to use CHOPs to create a curve from the path of an animated object.

It also takes you through the steps of creating a basic Digital Asset.

A brief introduction to Motion Effects in Houdini 10, and a working example of how to customise the Motion Effects menu for your own use.

How many times have you tried to cache out data in XSI’s ICE and found that your custom attributes have disappeared?

Check out this post for a tried and tested method of working around this problem.

Soft Effector is a plugin that removes the snap from IK animation. Also provided is a version that works with stretchy bones.

The SaveRenderMesh shader allows you to capture the actual tesselated geometry that mental ray uses to produce the final render and saves it out as an OBJ file.

This means you can create geometry from sub-division surfaces, displacement maps, particle instances, hair, and geometry shaders.

Shows how easy it is to use VEX to create a simple shader. Also illustrates how to use inline code in your VEX shader.