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1. ## Vdb grups?

Hey magicians, I have a setup that make some blobs growth, but I need them to growth in a different speed each one, I tried making groups out of vdbs to control each one by time offset with no luck, also tried playing with different vdb names. Any tip on how can I affect the speed of each blob separatedly? Plan B will be making each vdb growth separatedly and then play with vdb combine, not sure if I'll get the same effect but will give a shot. Here is a sample gif and file to illustrate my issue Thanks in advance! growth_hip_for_offset.hip
2. ## Vdb grups?

Hey @catchyid thanks for your reply, I tried both, making one mesh and making them individual with different names. Dave Stewart on facebook group was kind enough to provide 2 sample files that works, I'll drop them here in case is useful for anyone. Credits to Dave Stewart for the help! Cheers! growth_hip_for_offset_DStewart_ByVolAttrib.hiplc growth_hip_for_offset_DStewart.hiplc
3. ## Hair effect? (flow/er)

No clues on how to approach this?
4. ## Hair effect? (flow/er)

Hey magicians, I'm trying to study an effect I saw on flow/er by Lukas Vojir: Here are my thoughts about it: 1) Make curl trails and convert them to hair somehow to get that movement? or wires? 2) Create simple flip with curl noise and advect trails? So far I run some tests, I can get a similar result in static, but I cant give that movement, it is possible to convert advected trails to hair/wires to get that? or there is another better approach? Thanks in advance Cheers!
5. ## Altering frame rate for Alembic output? Slow motion?

Hey leroy, This tutorial might come in handy Cheers!
6. ## Bevel limit?

Hey magicians, I wonder if there's a bevel limit function inside Houdini? Thank you!
7. ## Deforming geometry

Hello everybody, I'm learning houdini, been reading stuff from a week ago, was super hard at first, too much words (vex, sop, vop, chop, vdb, and so on) and a different worfklow, node based. (I'm a designer and come from apps like photoshop and cinema 4d). Thing is yesterday I was able to create my first setup and now I'm addicted to this, can't stop thinking how to make stuff and never tried a most powerful soft. Here are some samples and my basic ideas on how to deal with, but some tips or help would come super handy, First example When I watched this I thought maybe can be achieved with a geo file node, selecting geometry by some attributes, a copy node with small spheres (or are they particles?), and some deformation via attribute vop, but this seems more complex, I'm missing something? Second example I'm particullary interested on abstract geo stuff, I'm a zbrush sculptor and wanna use houdini capabilities to do something like this, a doubt I got is how to deform the polygons (ie quads or tri) but keeping the overall silohuette, I did a test by saving the position, deforming with a mountain and then give the position back with a point wrangle, but it didnt worked. Third sample I was able to achieve something similar with vdb workflow, only thing I couldnt do is the cyan borders, were they made by another vdb combine / reshape sdf? or there's a way to make groups based on edges on vdb? like what the cookie node does on geometry separating autogroups? Sorry for being that long, I'm pretty excited about this soft, here are some more cool images of what I would like to play with, autor is Anton Won Soder Thanks for reading! cheers from Argentina
8. ## Flip mesh artifacts

Thanks for the tips and tutorial! @Atom the vdb colision is good but i think the other parameters might work, ill run some tests and post the result Cheers!
9. ## Flip mesh artifacts

Hey magicians, I'm trying to export a flip sim (I used suction fluid) but I'm getting some artifacts on the mesh, like pixelation as well as weird behaviors. Also, the mesh (its a usb model) doesnt fill completely. I already played with density, suction force, distance and some other parameters with no luck. I want to have a clean liquid filling the mesh, any advice on it? P.S: Attached is the video with different setups Thanks! USB_RD_02_Mesh_02.mov

Hey community, first of all thanks everybody for all the help, couldn't have learned this soft without this forum. Here is some art I did with Houdini, feedback is always welcome.
11. ## Smoke falling down

thanks @toadstorm didnt know about using the collision as mask, will give a shot! that thread is a beauty! ton of useful stuff, I'm checking it, thanks for sharing! @fencer Cheers!
12. ## Smoke falling down

Hello magicians! I found a cool picture and I thought I'd give a shot in houdini, here's the reference: } Here's what I have so far: Any thoughts to help get the effect on the picture? maybe advecting particles? Hip attached Thanks! smoked.hip
13. ## Stick UV into a deformed geo (from a solver)

Hello magicians, I've been struggling with this all the morning, reading on forums and trying different stuff (att transfer, att promote, att interpolate, p deform) with no luck. I'm studying a file done by Ian Farnsworth , a awesome growth effect done with vdbs and curvature/gradient calculation. Now I'm trying to add a texture that sticks on the deformed sim, coming from a solver sop, but the texture doesnt stick. it keeps on the same space, I need to do this in order to texture properly in C4d (octane) http://i.imgur.com/mPryDKP.gifv File by Ian: http://fx-td.com/content/misc/recursive_growth_v2.hiplc Any help will be really appreciated. Thanks!
14. ## Selecting only the edges of the voronoi?

Hello community, I'm trying to select (end-unroll) only the edges of a voronoi, is this possible? I tried with a divide sop (remove shared edges) with no luck, what I want is get the borders only of the voronoi coloured pieces, not the quads that are inside each piece, in other terms clean the mesh and have only the voronoi divisions and unroll them. Thanks!
15. ## The boxer

Hey magicians, Wanted to share a personal study, this one isnt Houdini related (yet, I'm thinking about adding hair and rig within H16), feedback always welcome

17. ## Animated loop in particles?

Hey magicians! I wonder how can i replace particles with animated geo looping over time? Here is a example video Any tip to drive looping geo by particles or how to achieve something similar will be great Thanks!
18. ## sine / cosine on circle?

Hey magicians, Been fighting with an icecream for some days now, main issue is that I can't create the curve-countercurve / wavy part on top, first I tried manually with zbrush and get feedback that should be more prolix, like in the references then I tried making some basic shapes and vdb stuff in houdini but I still cant achieve the look, maybe with some sin/cosine stuff on a circle? I'm getting crazy Some references @f1480187 please save my day wizard Cheers
19. ## sine / cosine on circle?

Hey @Noobini thanks for the files! learn a lot, those attribute expressions r some nice tricks! As for your cousin idea, thats what I had on mind but I didn't know that skin node I was struggling with sweep and loft for hours, thanks a bunch!
20. ## Particle blow effect?

Hey magicians, Just saw this fantastic spot by Lewis Orton and I was wondering how to achieve this effect where the particles are calm and explode up (sec 0:9 and 0:22), I tried with a ripple sop to drive the particles but the effect is very poor (and particles go up and down instead of up only, tried vector to float here with no luck) Any tip to get me on direction will be really helpful! Thanks!
21. ## sine / cosine on circle?

can't agree more
22. ## sine / cosine on circle?

that gif was my first try to make something like matt posted awesome way to solve the issue with groups, thanks! that setup is a beauty matt, thanks a lot! im playing with it, everytime I saw these wrangles I try to get into vex, I got so frustrated by not writing a line correctly that I close houdini I've been all day struggling with this cornetto, tried sub-d modeling, vdbs, zbrush, and the client is being so picky I want to quit the job, he just told me that a friend did the shape in 10 min within 3d max... Thanks guys, will keep working on this shit Cheers

Almost
24. ## Redshift sand sparks?

Hey magicians, I'm new to redshift, I'm trying to generate some sort of glossy particles to add some sexyness, but I can't get the desired result. What I tried is making 2 instances, 1 with the full point cloud, and the other with the glossy ones, but I can't make them to pop like the references. References: } What I have so far: Thanks!
25. ## Redshift packed instance reading attributes?

Hey magicians, I'm trying to render millions of particles, I'm using a method I saw in Peter Quint videos using the wedge rop, my issue is when I load lots of instances, pc gets super slow. PQ recommends to use packed disc primitive to avoid this, but when I use, I can't read attributes other than P on the instance redshift, so I can't apply things like motion blur. Any recommendations to solve this? Thanks!
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