Hey everyone,

I need Redshift for Houdini 22.0.368. Can anyone help me get the compatible version or guide me on how to install it for this Houdini build?

If anyone has it or knows how to get it working, please let me know.

Thanks!

I am trying to rotate the sphere with a point that rotates 360 degrees (which was a success) but when the angle value is 0, then the sphere moves to the centre. For which the code was:-

float ang = radians(chf("ang"));
float rad = chf("rad");

for( int i = 0; i<ang; i++){
    float x = cos(ang) * rad;
    float z = sin(ang) * rad;

    @P = set(x, 0, z);
 } 

So to fix this problem and to have the point on one the coordinate of radius, I used the second code using if statement( and it was also a success but it felt like it was a bit longer):-

float ang = radians(chf("ang"));
float rad = chf("rad");

for( int i = 0; i<ang; i++){
    float x = cos(ang) * rad;
    float z = sin(ang) * rad;

    @P= set(x, 0, z);
    f@newx = x;
    f@newz = z;

}if (ang ==0){
    float x = f@newx;
    float z = f@newz;
    z = rad;
    @P = set(x, 0, z);
}

So, I am trying to find a solution to how to make it a bit shorter. Here's my attempt at that ( and it is showing an error):-

float ang = radians(chf("ang"));
float rad = chf("rad");

if ( ang != 0){
for( int i = 0; i<ang; i++){
    float x = cos(ang) * rad;
    float z = sin(ang) * rad;

    @P = set(x, 0, z);
    }
}else{
    x = radians(rad);
    z = radians(rad);
    @P = set(x, 0, z);
     }
}

Is there a way to improve that/a better way to fix the position when the angle is 0?

(v21, apprentice) Hello, I've been following along with a tutorial (this one) and got to the part where I add a white water source node to my cached fluid sim and I've only been getting an error. I think it's because I don't have a surface value on my fluidsurface node so I tried making one from the vdbfromparticlefluid but I still get an error. Can anyone give a pointer or two on what I could try next?

Made a little ident for work. Vdb advection in a solver. Lots of help from the elders scrolls of OD forum.

Hey Guys!

Common problem with absolute and relative paths inside your Houdini project.
Probably, from PRISM time there were hundreds of this kind of scripts. But it always a problem to find one so I "created" one humble script for myself and want to share with you.
Just put .py script in your project folder or paste in shell. It will check your root folder and change all paths in nodes to relative.
Instruction inside rep

https://github.com/ibackstrom/HoudiniAbsToRel

🇺🇸:  You can listen to the video in English through the video settings panel. We take a general look at the Houdini interface to familiarize ourselves with the application before diving into the details in future videos.

I still remember watching those amazing Tornado Simulations by Martin Mirola which inspired me to do FX simulations.

Here's my Tornado Sim which is a part of Houdini Hollywood and this Module is completely FREE for everyone. Love giving back to community especially which inspired me so much!

The tornado Sim in this module can be setup in very easy ways and re-creating it barely takes 15-20 mins, everyone can feel free to watch the module and find out for themseves and can also fill their curosity if our methods are original or copied from tutorials ;)

The whole setup was built simply and the issues were tackled mostly with creative problem solving rather than going too techinical.

I used simple shape made from curve to emit smoke and then added some rotational velocities made from same shape to rotate the smoke.
The whole sim was split into 4 different pyro setups to make it feasible withut crashing the sim.
The top cloud lightning part was just sphere with noise.

The house was slowly activated from sleeping and added forces with threshold to break at certain impacts.

The trees were simulated in Vellum and instanced as USD in solaris.
The grass was faked with simple movement and scatter in solaris using instancer.

-----------------------------------------------------------------------------------------------

Rendered in XPU - (2-3 mins) each frame
Max Ram Utilisation - Under 64GB

-----------------------------------------------------------------------------------------------

Register here for FREE module releasing on 18th November 2026.
www.HoudiniHollywood.com

I'm trying to create this geometry as a fun exercise but I can't seem to do it. I tried to offset splines but I get some janky results. How do you create this geometry

Kim Davidson is pretty cool.

Hello!
here's a new tutorial that I'm sure will be useful to many:
https://youtu.be/X5DGcXvd2Gg

#Houdini #karma xpu #copernicus

I’d really appreciate some honest feedback on the lighting, materials, animation, camera movement, compositing, and overall realism/premium feel.

What would you improve to make this look more like a professional commercial?

Any criticism is welcome — I’m mainly posting this to learn and improve.

Ever wonder how to cook up your own procedurally modeled Krabby Patty? Well, look no further! Starring Robert Moore, this burger breakdown dives into procedural modeling with vex, lettuce solvers, vellum layout, and much more.

Part 1 is down to earth with the basic setup / overview, and part II is when things start to sizzle with move advanced topics. This was produced as a bonus section for CG Forge's modeling II course, (which revolves around procedural modeling), and over there you can download the scene files as part of the course if you'd like.

Cheers! 🍔

Would appriciate your follow on my Instagram page

The MPM surface node has a second input for surface and vel, and the tooltip IDs it as:

MPM Surface and Vel
The output of the MPM Surface. Useful to split the SDF creation from the polygon mesh creation in two separate steps.

What is the advantage of splitting the operation up into two steps? So I can perform operations on the SDF first, and then feed that into the polygon surface operation?

I am trying to make a test render to help assist my lookdev, but for some reason my node set up wont let me output an image in a readable format, only EXR. i have attached screenshots for anyone who is interested in helping me out.

note: i have tried editing the path and renaming it from exr to jpg/png but doing this makes the render fail, and does not output an image in the specified directory.

I have a very simple flip using a tank with a animated object that rise through the water. If I view from the flip solver it respects the collision but after 'Fluid Compress' it is completely ignored.

Is this common and are there any work arounds?

I think that it is very unfortunate that Houdini does not support the metal api. Macs have gotten to the point that they rival high end nvidia gpus and have significantly more vram (and I am pretty sure the most vram you can buy on an individual chip from any manufacturer). If SideFX added metal support to karma, the mpm solver, the vellum solver, copernicus, the flip solver, and the pyro solver, Macs would be a no-brainer for many artists.

That being said, are there any plans to introduce this support in the near future?

A personal 3D project exploring vellum simulations and COP texturing Rendered with Karma

I'm just writing to vent. I'm so frustrated with the way Houdini is making the Cop Network - Old hard to create. In 21, it was still there. In 22, all I can do is open a file created on an older version to copy paste the node into the new Houdini.

I'm a big user of the old cop network. I hate Copernicus. Everything I could do with the old cop network takes 2 to 5 times more nodes and setup in Copernicus and now every AI search result confuses both of them and keeps giving half assed answers that lead nowhere.

Why is there no "Level" node in Copernicus? Just fuckin WHY????

Or Mosaic for that matter. I work in video games and mosaic is such a huge time saver for assembling sprite sheets and the new equivalent that is named "Contact Sheet" can only work if I separately load all images as separate file nodes instead of a single sequence.

Why the fuck is this trash being force fed down my throat goddamnit!

hello guys after rendering just the ocean to check , I realized the waves and choppines are off, this is my first project ,trying it without checking course or tutorials.

I'm going for middly stormy sea and now I feel the waves are off , they are bit small and too choppy right ?

I'm wondering if it's possible to redo the ocean spectrum without redoing the sim ? the sim itself has an rbd boat that was simulated for movement with very rough flip(that uses the ocean spectrum for the big movement) , before the main flip sim.

or can I lower the displacement in the shader ?

Thanks

hey guys, i've been working on my first waterfall sim in houdini, and i've kinda hit a wall with figuring out how to mesh it and to get the smooth transition between the water and the foam. Trying to kill points based on vorticity, speed or Foam density attribute all seem to not work out for me. also this is my first time using Karma render and i kinda dont know the workflow for the whitewater stuff. If someone could just give an idea on how to actually mesh it and set up materials for the vdbs and attributes. Idk if i can post HIP file but i'll just leave the preview of the sim here couse i dont even know if the main sim setup looks fine (part sep 0.05 voxel 0.1) and a screenshot of karma preview with the water as vdb with whitewater material

My understanding of for loops is just too weak. I know it can be done, but can't figure it out. I'm trying to do a system that I can chose the amount of points my cutter moves for my wood lathe, and also rotate my piece of wood off-axis a certain amount each time my cutter cuts at one position (which makes a spiral) I did a version where I do it twice, but I want to do 30+ times. Just can't wrap my head around feedback loops etc. Could someone enlighten me? Thanks!