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John Kunz from patreon

John Kunz

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John Kunz posts

Elevation Isolines from Heightfield

John Kunz post Elevation Isolines from Heightfield from patreon

This is an optimized method to generate elevation isolines from a heightfield, or using noise generated in VOPs.


Using compiled forloop SOPs, the whole process is able to be multithreaded and each elevation line can be generated in parallel.

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Animated Subdivisions

John Kunz post Animated Subdivisions from patreon

This was the original reason I was animating boxes sliding around.  I had a setup that could fill space with boxes subdivided to varying depths of detail (this is the first setup in the file).  

I wanted to be able to smoothly animate between different iterations of subdivision.  This involves scaling one...

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More Boxes !!11!1!

John Kunz post More Boxes !!11!1! from patreon

Ended up stumbling into something very similar to Nicolas Daniel's animations (https://twitter.com/nicolasdnl/status/1344713981718650880) with some of the effects I was developing, just added a few tweaks and voila ;)


...

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Squash Stretch Deformer

John Kunz post Squash Stretch Deformer from patreon

Squash and stretch effect by remapping the point positions along each axis.  We take the input coordinates and redistribute the distribution along each axis.

One method with a spline ramp which is a nice way to 'sculpt' the deformation visually.

Another method uses bias() and gain() driven by sin() and cos() ...

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Rack Focus Camera Effect

John Kunz post Rack Focus Camera Effect from patreon

Animated rack focus camera effect.  I tried some expressions to do it procedurally, but couldn't find any way to make it look natural and easily adjustable.


Based off of references I looked at (like the amazing shot from The Young Victoria 2020-12-02 02:04:31 +0000 UTC View Post

Analytic Spring Function with VEX

John Kunz post Analytic Spring Function with VEX from patreon

Using the spring function to procedurally animate extrusions.  This gives you a nice jiggle style effect.  Compare with a linear animation in the second image.


// Spring Decay Function

float a = .5; // Damp

float w = 15.0; // Freq

@P.y = -(pow(2.7, -@Time/a) * cos(@Time*w) ) +1; View Post

Procedural Radial Array

John Kunz post Procedural Radial Array from patreon

Start with a simple outline path and a circle.

Complexity is quickly created by combining multiple copy, transform and path deform operations.


The base shape is packed before replicating it to allow instancing to be used at render time.

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Vertigo Dolly Zoom Camera Effect

John Kunz post Vertigo Dolly Zoom Camera Effect from patreon

Wanted to figure out how to set this up via expressions after seeing Blake Kathryn's animations https://twitter.com/blakekathryn/status/1322193983401910273


Ended up with something like this in the camera's 'foc...

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