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Houdini 18 - Intro to VEX - VolumeGradient - Min Pos - Custom Flow Solver
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- Опубліковано 14 сер 2024
- Howdy guys!
Its been a while since I added to the Intro to VEX series and I thought it would be nice to start to look at the volume side of VEX. Theres lots of things we can do with a Volume Wrangle and VEX. So I wanted to cover a few of the basics!
In this video we are going to learn to use the VolumeGradient and MinPos functions to ultimately create our own Terrain Flow Solver. WE will walk through each step so you can see how to begin to work with volumes in VEX!
Patreon: / indiepixel
Thanks!
Indie-Pixel
I'm started learning Houdini and vex, your tutorial is great and easy to understand, the way you use math in houdini is amazing , the example which you showing really cool man, kindly make lot of tutorial about VEX with cool example. Thank you so much for your wonderful valuable time to teach us .Cheers
Super, super cool! Looking forward to the next video of the series. Inspiring work!
Stumbled upon your videos today and must say this is absolutely fantastic content.
Will be hanging out here more often. Great work! :D
Pretty cool. Thanks Indie-Pixel. Another great tutorial as always. As an environmental scientist, I don't see a problem, I see potential ;-D
Super Usefull Mate!! Keep'em coming.
Greate tutoriel as allways i can't wait for the Car physics course
Thank You very much!
I'd love a video covering solving finite difference equations over volumes using Houdini
Oh forgot to mention I couldn't find your Patreon info(im a lost cause) wanted to further my fan boy appreciation. Hit me wit it bruh!
No prob at all! www.patreon.com/indiepixel
Thanks for the support!:)
very helpful,thanks
Don't we need to recalculate the old normal when the point move to a new position? And is there any mathematic explain about the negative gradient and the continuous cross product with the normal and negative gradient?
I couldn't understand why we wrote @N=@old_norm; old norm was already @N, like we wrote at the beginning?
How would you erode the terrain using this custom flow method?
Each frame I would remove height from the heightfield and transfer it to neighbor vocals. That would move the terrain down the hills. It's done with a volume wrangle.
@@IndiePixel3D yes i thought so but how would you choose which voxel to subtract height from. A voxel near a flowing point would give up some of its height storing it to a point attribute. So each time a point passes by it removes some height from voxel a transferring it the next voxel?
@@philippaps44 yep, exactly. You choose the voxel to transfer to by looking at the neighboring videos and find the one that is pointing downhill the most. That is the simplified way. There could be more rules involved but that is the basic algo.
@@IndiePixel3D Would be interesting to see an erosion effect applied on any volume not just terrains
You sexy son of a gun you.. think it censored out my first comment..