top of page
Zen_logo_white.png

ROCKET INTERPOLATE

 

guides.jpg

INTRODUCTION​

​​

In production, the most important thing is being able to make changes to your grooming quickly, without destroying your work. This requires planning ahead and keeping your setup clean and organized.

​

A large number of guides gives you very precise control, but when it’s time to reshape the groom, things can quickly turn into a nightmare.

​

No worries, Rocket Interpolate is here!

menu

MENU​

​

​

 

overview

VIDEO​

​​

For those who want a Rocket rundown of the tool

​

OVERVIEW​

​​

I built this tool for the latest cinematic I worked on. The goal was to cover the entire scalp with guides using only a small number of them, while keeping everything fully procedural.


The result is a new HDA that, like the other members of the Rocket family, lives in a single node and is simple, clean, and artist-friendly.

​

rocketHDA.jpg
inputs

INSTALLATION​

​​

Download the HDA and place it in the otls directory inside Houdini/Documents.

​

This tool has been developed and tested on version 21.

​

INPUTS AND OUTPUTS​

​​

Very simple. Plug your guides into the first input and the skin into the second one. The outputs are identical to the inputs, guides and skin in, guides and skin out.

​

inoutputs.jpg
settings

SETTINGS​

​​

Divided into blocks, Rocket Interpolate is a modular HDA. This means you can apply different settings to different groups of guides.

​

Settings.gif

​​​It's divided into two sections:

​

1. Block
Here, you decide how many blocks to create. It’s best not to add more than 4 or 5 blocks to keep everything fast and responsive. If you need more control, add another HDA and split the groom into additional parts.​

​

2. Resolution

Here you can change the number of points. Keep this value as low as possible.

Let's dive in.

​

expandedSettings.gif
interpolation

Block

​

1. Guides

​

By default, the tool selects the first four guides you created. To change the selection, simply click the arrow and choose the guides you want.

​

Clicking the arrow also lets you review the selection at any time, which is very helpful when working with many guides and multiple blocks.

guideSelection.gif

​​1. Vertical - Horizontal Amount

​

Here, you can decide how many guides to generate in both directions.

amount.gif

​​1. Offset - Rand Amp

​

Use these sliders to add a bit of messiness to your guides.

messiness.gif
lengthVar

2. Length Variation

​

Use Length Min and Length Max to add variation to the guides' length.

lengthVar.gif

2. Seed

​

Use this slider to randomly vary the guides’ length.

seed.gif
res

3. Resolution

​

Use the Segment Length slider to control how many points your guides have. Keep this value as low as possible, finding a balance between shape fidelity and point count.

Resolution affects all the guides

res.gif

CONCLUSION

​​

That’s all, folks!

​

I hope you find this tool helpful, and I strongly recommend finishing the work using Rocket Grooming and the other members of the family.

Take care, and share the knowledge with the community.

bottom of page