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VEX101 - Generating Curl Noise (Patreon)

Published:
2018-04-17 08:07:30
Imported:
2026-06
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Content

Ah! What can be more relaxing than having our copies transformed by everyone's favorite noise - the curl noise? This is the same technique we used to create this course's preview image.

After this one we'll look into how we can combine simple VEX with a bit of math to visualize acoustic patterns.

Files

Previews only

VEX 101 pt. 8: Generating Curl Noise

Comments

Gustavo Gonzalez

short and sweet! had a lot of fun using the curl noise function, especially when changing the copies color and pscale over time. made me very happy. thank you!

M Parsons

Loving these vex tutes. I still feel like a caveman coding, though.

Emnet

Hallo ENTAGMA, am new to Hudini and have a qustion:

Juan Iturbe

hey guys so how can i pack this into 1 animated alembic object, when i export as alembic i get each object separated its a nightmare for c4d, runs so fast in houdini its a joke. i´ve tried alembic rop but i can´t seem to get all to be 1 animated object. How would i go about this ?

entagma
>>16342310

Hi Juan, typically I'd stay inside of Houdini for those kinds of setups. I think what might work could be using a convert-SOP before exporting to alembic, so you'll convert the packed&instanced primitives into geometry. Not sure though - gonna check as soon as I'm back at my workstation. Cheers, Mo

Andreas Ibsen

Hi guys — Great tutorial. One question though: I'm not quite sure I understand how the curl noise generates the result it does when we set it to affect the template point's position v@P and not rotation / orientation. The point's stay where they are, so how come the normals rotate? All the best, Andreas

Guido Ponzini

Amazing as usual. Maybe for performance and Redshift stylesheet could be a good option using Instance node instead of "copytopoints"? I tried and it works good.

Nelson Noa

Great series, thank you for such high quality content. I don't know how to thank you enough. I have a simple question that may not have a simple answer. In the version that you've created for the Intro graphics I notice that your rectangles animated with the curl noise do not intersect each other, are you perhaps combining the attribute wrangle with rigid bodies?