Resize Fluid Container with an Object March 30, 2011

Many times I get asked how can you resize a fluid container? Every time I answer this question I invariably come up with yet a new method. Goes to show you how flexible this amazing piece of software is.


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Geometry Intersections 2 September 15, 2010

Jeff Wagner continues his discussion on geometry intersections.


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Geometry Intersections 1 September 9, 2010

Jeff Wagner discusses how to calculate the intersection of two or more objects and then get creative with the resultant intersecting regions


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Distributed Fluid Sims May 29, 2009

This blog features Side Effects Senior Developer, Jeff Lait, explaining how distributed fluid sims work in Houdini 10. I have also posted information about how to incorporate this workflow into your existing pipeline tools.


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Building a Custom VOP Part 4: Writing Help May 30, 2008

This final installment of building a custom VOP looks at writing the help for our operator. Writing help is now a simple task given the new wiki style and should not be overlooked.


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Building a Custom VOP Part 3: Adding the Code May 13, 2008

Now that we have our VOP created with proper inputs, outputs and a parameter interface all supporting the different forms of the function we wish to support, it's time to actually make this operator do something.

Here we write shader code. Very basic shader code and no shader writing skills are required to complete this exercise, but they would certainly help in understanding the accompanying docs in this post.


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Building a Custom VOP Part 2: The Interface April. 25, 2008

Here we take a look at creating a new VOP operator and build the parameter inputs and outputs to support the transpose functions two different forms: 4x4 matrix input and a 3x3 matrix input.

The main parts covered are the actual creation of a VOP operator, adding input parameters, adding support for the two forms as signatures and explaining what a signature is, adding the parameter interface and finally adding an output to match the input.


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Building a Custom VOP in Houdini April. 25, 2008

One skill that is not well documented is the writing of your own VOPs. In the next few entries, I will walk you through the creation of a simple VOP.


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Point Instancing and instancepoint() In Houdini 9 Dec. 13, 2007

In this entry I take a look at point instancing and the new instancepoint() expression. With instancepoint() you can vary some attributes of your instances such as object and material parameters per instance point.


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Point Dynamics With CHOPs - Part 2 Dec. 11, 2007

There are many ways to apply dynamics to points. In this entry, part 1 of 2, we will look at how to use CHOPs to add dynamics to points by settling them back from where they started nice and gracefully.


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Point Dynamics With CHOPs - Part 1 Dec. 10, 2007

There are many ways to apply dynamics to points. In this entry, part 1 of 2, we will look at how to use CHOPs to add dynamics to points by settling them back from where they started nice and gracefully.


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Painting on Example Geometry Nov. 23, 2007

Now for a practical example of our past few lessons. In this video lesson we will paint points on a bleeding heart.


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