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Found 28 results

  1. Scatter evenly/orderly/not randomly

    Example - made inside of ae with plugin Trapcode Form. Practically it's just particles evenly scattered on the sphere. Tried to practice that inside of Houdini using Scatter node, but it look noisy/with holes since it is randomly scattered. Seems like needed different approach. Thank you!
  2. Ideas to achieve this effect

    Hi im learning houdini and a few days ago I found this and I really wanted to create something like it using Houdini, the problem is that I don't really found a way to do it and I'm kinda frustrated, my first idea was to scatter points on the base geometry and then copy to points a grid, but then I'm not sure if that could work or how to make a cloth sim for the grid which should be colliding with each other, idk maybe is easier that I think and im completely in the wrong path haha if someone can guide me a little bit on this little quest ill be beyond grateful. .
  3. Hi there, I'm trying to stick points on an animated alembic without the points moving all over the place. At the moment I've got my alembic attached to a vdbfrompolygons to scatter. How can I make sure that these points will follow the alembic geometry? (the polycount doesn't change while animating) Thank you for your time and help. (I've attached an alembic file) AlembicTestFile.abc
  4. Hello, Small problem this morning. I have a flower in Houdini that's been cached out as a .bgeo file. The flower opens and is supposed to emit particles, which I'm controlling the location of emission with a paint node and a timeshift after that. Just following the tutorial, as you do. After the timeshift is a scatter with the Density Attribute set to Cd and after the scatter an Attribute Interpolate node so I can put the points back onto the moving petals to get a velocity from the points to emit water and so on. The problem is that the color value from the paint doesn't stick to the moving bgeo geometry and when the frame moves will break up the color, thus scattering the particles in a new way on every frame. Even a quick copy paste from his .hip file to mine doesn't work after I change the paint node to fit my geometry. Every value is the same and I'm confused. Is there a better or any other way to lock color values onto a cached bgeo file?
  5. Hey All! So i'm scattering points on a geometry to Voronoi fracture to break into multiple chunks. There is a portion of the geometry I want to break of in just one chunk Is there a way to tell Houdini not scatter points in that particular area of geometry? Thanks everyone!
  6. Hello peeps, Can anyone help me find some examples of scatter multiple objects / instances with controls on probability of each, or using color to influence the placement of explicit objects?! I am thinking of building myself a scatter system but not sure if I am up to the task... Thankies.
  7. Houdini Geometery issue

    Hi, I am trying to add Voronoi fracture to an outer wall geometry but the geometry pieces are transforming, this operation i am doing inside the fracture node. I am attaching my file, Can anyone please tell me the solution for this one? I even tried exporting the Geo to alembic and bringing it back in houdini but it didn't work. Shot_01_Sim_V005.hipnc
  8. Hi all, I'm not sure if tipping is allowed ( I can't find the rules ) but I'm happy to tip with any crypto of your choice - any help on this would be much appreciated, I'm quite new to Houdini but have some experience in C4D so go easy on me. In short, I'm trying to achieve a LiDAR effect but starting with existing models as opposed to using actual point cloud data. I've had some success with this in C4D but the materials editor there is limited and I want to achieve some things that I don't think it could do. I'll try to be as concise as possible. Before i start I've seen Danil Krivoruchko's LiDAR tutorial and had a look at the files (which are too advanced for me right now) and I've also seen this thread - which gets as close as I've seen so far but doesn't take into account shadowing - only directional faces. - LiDARs, because they're emitting from one point, create shadows in which they can't see (as shown well on the underside of the car above or behind the figure below ). My instinct would be to use a light source to dictate how the scatter tool distributed it's points over a mesh, however I'm open to ideas. I'd also like the shadows from separate objects to obscure scatter points of other objects. - I don't mind whether the points are randomly spaced or appear as a more ordered 'scan' lattice across the objects. - I don't need colour but if there is a way to colour the points from the objects colour map that would be amazing. - I'd really like the points to 'jostle' when animated to, this is to simulate LiDAR's imperfect scanning over time. Please let me know if you'd like any more information and I hope someone can crack this. Thanks
  9. Solver on scattered points

    Hi All! I think this is my first post, so thank you for all the info shared here - I have a sphere with scattered points (in texture space) and a map that makes propagation of the points over the sphere. - I have a solver moving this points over the sphere. The problem is that the solver just move the points generated in the first frame and I want the solver to be acting over the points created over the frames. I assume this can be a stupid question Thanks in advanced! Domingo.
  10. Hi, i've two geometry with a scatter node applied and i wont connect these point using an add node by color attribute create with a color node after scatter node. so... geo 1 geo2 scatter1 scatter2 color1 color2 merge add Now i need to calculate the distance between the connected poit. How can I do? Thanks
  11. Hi Guys, I want to scatter some points on a growing and deforming vdb mesh. These points shouldn't jitter on the surface and look like they are moving along with the surface. I have attached a basic file similar to my actual setup. Basically, I am going to render these particles as bubbles on top of the mesh and I want it to be quite dense. I haven't been able to figure this out and couldn't find much help online. It would be great if you guys can check it out and help with a response. Thanks vdb mesh vdbscatter_v01.hipnc
  12. paint density

    hi guys i use paint node to get particular scatter points for my object but when i fracture it, pieces look so long i guess it is a density problem. i just want irregular pieces but more points in some areas.how can i fix it.please help me... test.hipnc
  13. CAMP_2016_Behind_The_Scenes_on_626475235.mp4 Very nice piece in my opinion by Raw & Rendered! Inspiring. I believe the technique is related to curl noise and many examples I found in this forum. However, I am particular interested in this setup where the curl noise is actually controlled by guide curves/circles. Also interested in how the spheres are randomly scattered on the curves and flows with the motion. I have attached the actual references for the frames. I am very new to Houdini and love procedural. Have been experimenting with wrangler nodes, sops, vops and etc. It would be great if anyone could share the approach on creating a piece like this. Looking forward to your input. Great community I found here. CREDITS Directed & Designed by Raw & Rendered | Joey Camacho rawandrendered.com Special Thanks to Maxon | Cinema 4D - maxon.net Insydium | X-Particles - 3.x-particles.com/ Otoy | Octane Render - otoy.com Music and SFX by Jay Klos | soundcloud.com/jay-klos Produced by Olaf Blomerus | blmrs.com CAMP Opening Titles and behind the scenes.

    Hello! I would like to know how you could control how your voronoi or fem will break. I used to watch videos by Sangiemenla, he explained how to use the "add" node to control where your solid would be fractured. But now I can't find his channel any more and I can't remember! I would also like to know if there is a similar way for FEM network, to set where the solid object will break. Thank you! Antonin
  15. FEM Fracture Attribute

    Hello! In this Masterclass, at 41:00, the teacher explains that fracture parts of the object can be localy modified using an attribute. So my question is about this : how do you control what part of the object will fracture? is there a way to connect the FEM solver to a voronoi attribute or anything like that? Thank you for your time!
  16. Hey guys. I'm pretty new to the houdini world, and I've been experimenting a lot of things. Is there a way to get the RGB values of scattered points using attrib wrangle? Im not too familiar with the VEX syntax, so Im having a hard time figuring it out. I have random colours signed to a scatter node and some geometry copied on to the points using a copy node. I want to limit scatter the geometry based on the colour of the scattered point. Thanks!
  17. Hi, I have been trying to deform scatter point over the surface of the geometry, What would be the way to deform or slide scatter or give slide scatter points with offset over time on the surface of the geometry ? I have tried with color texture and it worked, but i am looking forward for the VOP method, can someone guide me over that ? I am still to houdini and trying things out. Thank you,
  18. I am trying to scatter some points on a circle. But I want the points to be scattered more near the center and less towards the outer side. In the old Houdini Scatter I could do it by making my Circle Primitive type to "Polygon" and then uncheck "Divide Non- Convex Polygon" on the scatter node. However, in the new scatter node of Houdini 14 and 15, this option is not available. Here is what I am trying to achieve, this is with the old scatter node. This is what I am getting with the new scatter node. Please help.
  19. Hi, I create a new project but have a new problem. use to source object its has not problem but when added the point on source objects its changing rotation. I hope, you can help me for ı can fix my files.
  20. HOUDINI - Alembic and RBD (Beginer)

    Hi! I'm starting with Houdini, and I would like to know how to combine a cached animation and Houdini's RBD. I know that this question has already been asked on this forum, but as I said, I am a beginer, and I would need reaaaaly basics answers. (I don't know any one who uses Houdini so sometimes I have simple problems that I can not solve). So my problem would be : - I receive an animation made with maya. I export an alembic (or a cache, FBX? Is there a best way?). I import it into Houdini. -The animation works, but when I set it as a RBD solver (or FEM, or anything that has something to do with gravity), the animation doesn't work any more. -I heard on this forum about a RBD keyframe node, about "Use geometry Transform", but I'm really too new to be able to use these informations. For exemple, if I want to use this alembic (attached file) : it is a little sword, I want it to be breakable, and to keep its animation. How would you do this? I hope somebody will find the time to answer to my questions, thank you! petite epee.abc
  21. Hello everyone ! I have some trouble with the foreach loop, and after some search I have not found an answer... I want to connect points from two scatters and do some operation on each pair of points : connect them to a line, resample, noise and set pscale depending of point number of each loop. Here is what I have : A scatter "A" creates two points. For each of thoses points I want to scatter (with scatter "B") another point and connect them together. Here is my two issues : 1- I don't know how to scatter from a sop outside the foreach loop. 2- I connect my points using the add sop setted to "Polygons > By Pattern > Polygon 0 > 0-$N". Will it work on the second iteration ? Here is an image of my network : Thanks for helping ! scatterForEach.hipnc
  22. Hi, I'm facing a pipeline issue: I'd like to scatter dozens of object in maya using the houdini engine. It's working fine if I scatter a simple object like a torus. BUT in order to keep my scene light I would like to scatter arnold .ass file. But houdini engine doesn't recognize ass files. Do you know how i could avoid that, or maybe use Htoa.. The point is to be able to scatter and control a huge amount of object without getting a heavy scene thanks
  23. Letterpress

    Hi, here's my first project using Houdini. My goal was to get in touch with Houdini by transforming skin to metallic letters. I wouldn't have been able to realize this effect without your help here on the forum. Thanks a lot! dk
  24. Hi, I'm trying to scatter points onto a surface provided from maya and imported as alembic geometry. To get the result I need, I have to convert the outside geo into a curve and then use a polywire to outline the geometry. Afterwards I need to scatter points into the polywire. However using the rest at frame 1 and then attribute interpolating the points onto the surface I still get twitchy points. Is there another way to do this where the points are static and moving with the polywire? Is there something I missed. I am not using a rest node, I am simply freezing the points on frame one. Thanks in advance.
  25. Hi Houdini 14/15 scatter node is slightly different to 13. I understand there was a thread about this talking about the Attribute Bias option but what if you're scattering points within your geo/volume and not on the surface. https://www.sidefx.com/index.php?option=com_forum&Itemid=172&page=viewtopic&t=37345&highlight=&sid=7851375fa44ef5f63c8fa9aa751b4cfe It used to be you IsoOffset and the Scatter node would pick up on it. Any ideas? EDIT: Point Jitter does have some use but does have its limitations