Improve Guided Simulation with RBD Tools in Houdini

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  • เผยแพร่เมื่อ 21 ธ.ค. 2024

ความคิดเห็น • 18

  • @MortalVildhjart
    @MortalVildhjart 2 ปีที่แล้ว

    Your videos are so amazingly Helpful, the approach of asking questions all the time is making me think about the actual problems to solve and not as much on simply following the Tutorial. I think you should get as much attention as a Paul Esteves gets or the SideFX Labs people. Thanks so much for this series!

    • @bubblepins
      @bubblepins  2 ปีที่แล้ว +1

      Thanks so much! Your comment made my day! I love Paul Esteves videos too, I think he brings a lot more artistic side into his scenes, something that I probably lack in mine. I think my videos are pretty good at explaining things, but I need to work on making it look more pretty and better renders.

    • @MortalVildhjart
      @MortalVildhjart 2 ปีที่แล้ว

      @@bubblepins Happy to hear that it made you happy :) I think it's a fair observation/self critique, i personally don't think these tutorials need to be any extra shiny, to me that would take away the Focus. I think Entagma is a channel that has a mostly sweet balance between Visual and Technical but i frequently find myself skipping all the "make pretty" parts because i personally want to understand the technique/ concepts more. Anyway regardless of what i think, thank you again haha.

    • @bubblepins
      @bubblepins  2 ปีที่แล้ว +1

      @@MortalVildhjart Thanks for all the great feedback! I'll try to get more of that balance in my future videos! It is hard, you have viewers coming from all sorts of backgrounds watching the same video. But your feedback helps me get a better understanding!

  • @antoniopepe
    @antoniopepe ปีที่แล้ว

    The Key for the jitter piece in guide simulation mode, is to activate the "BLEND"checkbox and reduce the value from 1 to 0.5 and less to have a natural look. in this way you can leave the strenght multiplier higher than 4 but at same time gradually blend to this value and release when exceed the breaking threshold 👍.
    (Inspired by your setup for the guided geo, i clip in half the original geo, fill holes, transform a bit from the center, remesh for giving resolutiion, add a TET EMBED for creating the inside geo, bend it, mirror it and put in the guided geo.)

    • @bubblepins
      @bubblepins  ปีที่แล้ว +1

      Awesome advise! Thanks so much for the tips! I never used the blend to remove the jitter, but very good advise! And very good idea for using the tet embed to create guided geo.

  • @georgesebastian9859
    @georgesebastian9859 3 ปีที่แล้ว +1

    Hey, Your tutorials really helped me a lot. it's something i desperately need to know. how to export RBD simulation into FBX format. whenever I do, it gets stuck. So I brought those simulation into maya in order to export animation as FBX then also not working. Would you please help me to export as FBX format? Please.... thanku. Your tutorials really helped me a lot

    • @bubblepins
      @bubblepins  3 ปีที่แล้ว

      I find that alembic works best for exporting simulated animations out of Houdini. If you drop down a alembic rop, that will help. However there are limitations with Alembic, as you lose some of the attribute data.
      Hope that helps!

  • @cdeftones
    @cdeftones 4 ปีที่แล้ว

    Sorry if a look like a fool asking this, but why use a shatter boolean instead of making a vdb from the bend animation?

    • @bubblepins
      @bubblepins  4 ปีที่แล้ว +2

      It is a good question!
      The rbd solver won't take a volume as input for the Guided Simulation feature.
      I tried converting the geo to a vdb and convert it back to a polygon and feed it into the Guided Sim just to try to see what happens... because if this worked, we would be able to feed in a lot of complex animations! Unfortunately it didn't work out, the number of points change every frame due to the vdb convert remeshing the polygon. The Guided Sim feature calculates the velocity of the influence points of the guiding geo that gets fed in and uses that velocity to influence the simulation.
      Hope this helps!

    • @cdeftones
      @cdeftones 4 ปีที่แล้ว

      OOOOHH gotcha. Didnt realise that the number of points would change. Thanks. Love your videos.

    • @everydayhero3610
      @everydayhero3610 4 ปีที่แล้ว

      ​@@bubblepins You can still use iso offset (driven by the values from the one we used to fracture the cube) with scatter (again, it can match the "fracture" scatter) or points from volume. The points don't jump around and the animation that we created still works.

  • @bearstudios101
    @bearstudios101 4 ปีที่แล้ว

    Hey, sorry for asking this as it doesn't relate to the content of the video, but it's something i desperately need to know. Suppose i want to add measurements to a houdini modal, how does one achieve that? Any ideas?

    • @bubblepins
      @bubblepins  4 ปีที่แล้ว

      Hi, all questions are welcomed! As for measurements, I'm not sure what you mean by that. Are you referring to 3D modeling like CAD programs? In Houdini, there's a measure node, I'm not sure if that is what you're looking for. The measure node can calculate area, volume, curvature, etc. If you need something to measure the length of an edge, I think you can isolate that edge using groups and then drop down a measure node to calculate measurements for that edge. Remember Houdini units are in meters, so 1 Houdini unit (the number 1 you see on the grid = 1 meter).
      Hope this helps!

    • @bearstudios101
      @bearstudios101 4 ปีที่แล้ว

      @@bubblepins Yes, you're right, i'm looking to do something like CAD programs. www.sidefx.com/tutorials/houdini-tutorial-creating-a-measure-distance-tool/. I'm trying to do what's being done in this tutorial, but it's a bit tough for me to follow because there is no audio. Is it possible for you to make something similar to this? I'll be REALLY GRATEFUL. th-cam.com/video/kCx_fU8yg24/w-d-xo.html This is what i'm looking for. I want to learn how to do this in Houdini.

  • @yaroslavhoncharenko106
    @yaroslavhoncharenko106 4 ปีที่แล้ว

    I'm sure many people just use to Mantra, It's easy to use for learning.. But also I'm sure non of big production studios using Mantra for final result, farms they using for. I think, if Karma will get GPU Acceleration, we'll get next Mantra)

    • @bubblepins
      @bubblepins  4 ปีที่แล้ว +1

      If only... but I think SideFX wants to put GPU rendering in Karma soon

  • @yaroslavhoncharenko106
    @yaroslavhoncharenko106 4 ปีที่แล้ว

    Poor poor pieces! Whose been shaken even more, by observing the growing strength, of BulletSolver ))