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Found 13 results

  1. Hi guys, So as you can see from the question I am a Houdini newbie, and I just can't figure out how those nodes work... What I mean by that is that I don't get what I should plug into the inputs of the nodes and in what order. I think I got the cloth capture right (untitled.mp4), but the problem is going on from here. Just to clarify I want to use a low res cloth sim to transfer it on high res one. Sorry for the very basic question but I couldn't find answear anywhere. Cloth_capture.hiplc
  2. Deform Groom curve stretching

    Hi Odforcers, Im working on a project where I have to tear up a lawn using bullet rbd's and hair to generate grass. Ive come into a problem, or maybe a bug where the grass in the deforming rbd patches becomes very long either when moving through space, or even at rest. I cant seem to find any other topic where this has happened before. Has anybody encountered this kind of problem with H16's hair and deform groom? Any incite would be appreciated. Id love to attach a screen shot however the content is under NDA. All I can say is imagine a bunch of curves spidering out from underneath a few selected skin patches. Cheers!
  3. Custom Wave to Ocean

    Hi everyone, Im trying to add custom big wave to Ocean and Dop network. For polygons everything works fine, but for other fields like surface and vel its now working and of course dop isnt working well, i dont know how to add it or how to deform other field like polygons. Here is the scene: custom_big_wave01.hip
  4. 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,
  5. Spherical Coordinates

    Hello, I'm trying to replicate the same deformation as seen in the gif below. After some research I believe it's got something to do with Spherical Coordinates? I implemented the formula from this site which is: radius = sqrt(x^2 + y^2 + z^2) polar = arccos(z/radius) azimuthal = atan2(y, x) x = radius * sin(polar) * cos(azimuthal) y = radius * sin(polar) * sin(azimuthal) z = radius * cos(polar) But this results in some pinching of the cube at both poles, so maybe this isn't right, or I haven't done it correctly? Has any one got any experience with something like this? Any help would be really appreciated. Thank you sphere_deform.hip
  6. I'm following along a tutorial that uses Houdini 12. I'm on Houdini Indie 15.5. There are a few things that have changed (new check boxes and expression names) and what I'm doing isn't working as it appears to be in the tutorial. There is probably a few ways to do this... I'm open to suggestions, but I want to also understand what changed or what I might be doing wrong. I have two sides of my node graph. One is a Grid plugged into a Mountain (to displace). The other side is a Sphere plugged into an attribute create which I've made an attribute called meshPush. Both sides are piped into an attributeTransfer. Finally at the bottom, there is a point node where I am supposed to add an expression to the Y position to displace my grid using the sphere. When I try to add my expression to position Y (@P.y + $MESHPUSH) that actual attribute isn't working and not actually showing up. Hope this makes sense. Can someone take a look and let me know why this might not be working properly? Thanks in advance from a new Houdini user. Learning_01.hipnc
  7. FEM keep deform after impact

    How do i keep deform from impact on a FEM simulation. Or what is the better way to do this.
  8. How to deform a volume with Geometry

    Hello everyone, does anyone can help me, I just have no idea. What is the better way to go for? Thanks Carrier_cloudStorm_Playblast_003.mov
  9. How to deform a volume with Geometry

    Hello everyone, does anyone can help me, I just have no idea. What is the better way to go for? Thanks Carrier_cloudStorm_Playblast_003.mov
  10. Just curious if anyone has recreated fStretch or similar a volume preservation method inside Houdini? fStretch - Softimage version - Are there any papers on this sort of thing?
  11. Hi, can't get the solver to do the right thing, so that the deformation is taking the rotations into account. Once the ball in the example scene is starting to rotate, you can see that the deformation is added in worldspace. How do you apply the deformation? Is there maybe an example out there? Thanks! solver_with_animated_geo.hip
  12. deforming volumes with cached geometry

    Hey guys, I have an alembic file of an animated deforming creature from maya. I am converting it into a VDB volume and applying noise via vop sop. I created a rest.x rest.y rest.z volume to compute the volume rest fields for animation. Now the problem is, after I create these volume rest fields I need to then deform the volume rest fields to match the alembic animation so my rest field will deform along with the geometry and the noise will stick to it without any slipping At the most basic level I can manually keyframe a xform sop, but the noise slips when there is deformation; i.e. this only works with translation or rotation So is there any way to somehow transfer the deformation of the alembic animation over to the volume? I tried transferring density to points, deforming via lattice and then transferring back, but this caused a huge loss of detail/unpredictable results. I also tried transferring volume attributes, along with a thousand other things, with no luck. I posted an example file. Thanks! volume_deform.rar
  13. Dandelion Wire Weighting

    Hi, I was wondering if anyone could help me with this. I'm creating a dandelion simulation where the geometry is attached to each wire and all the wires are being deformed. I'm having problems as the geometry spazzes out once the dandelion seeds come off the dandelion ball. Is the any way to fix the geometry right on to the wire so it doesn't deform because I think that's what the problem is. I'm kinda new to houdini, it's probably a silly error I can't see. Thanks in advance!