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ビジュアルエフェクトが楽しい理由の 1 つは、現実には何も破壊せずに、さまざまなものを爆破できることです。 このレッスンでは、パーティクルの火花を使用して導火線に火を付け、カートゥーンの爆弾を爆発させます。 爆弾にはリジッドボディダイナミクス、火と煙には Pyro FX を使用します。このレッスンでは、さまざまなシェルフツールやネットワークノードを使用して、ダイナミックシミュレーションをセットアップする方法を学びます.

作成するショットを完全に理解するために、すべての要素をゼロから作成して、エフェクトをシミュレートします。 Houdini シーンのさまざまなコンテキストで、シミュレーションノードがどう機能するかを理解しやすくなるはずです。最後に、Karma レンダラを使用してショットをレンダリングします。

Research for this lesson by Michael Buckley

Houdini 19.5 用の Houdini Foundations のすべての章は PDF としてダウンロードすることも印刷書籍として購入することも可能です。この本は 224ページ、9章で構成され、Houdini への第一歩を踏み出すのに最適です。

CREATED BY

ROBERT MAGEE

Robert Magee is a Senior Product Marketing Manager at SideFX who has been working with Houdini for 20 years. He has created lots of learning material and demos designed to help artists understand how going procedural with Houdini can benefit their work.

More from Robert Magee

コメント

  • sdugaro 2 年, 6 ヶ月 前  | 

    Nice one! Thanks.

  • PolyMarvels 2 年, 6 ヶ月 前  | 

    Robert, great series as always, thank you.

  • SerjKirchano 2 年, 6 ヶ月 前  | 

    Thanks! Clarifies a lot of details indeed

  • bharath453 2 年, 4 ヶ月 前  | 

    Hi, i need some help, if i click polybevel in houdini, it shows fatal error and get crash. What is the solution for this problem

    • jjin10688 1 年, 8 ヶ月 前  | 

      It might be because your pc doesn't use high detail if it is not a high-end PC.

  • spyco59 2 年, 4 ヶ月 前  | 

    Thanks Robert! Really appreciate having a PDF file to follow along! :)

  • luoyuepo 2 年, 2 ヶ月 前  | 

    And there is something wrong with the PDF file.

    On the Page 21, paragraph 2. The expression should be
    “ Set the Prune parameter to
    $F >200. After the expoding_bomb node, add another Prune LOP.
    Set the Prune parameter to $F <199."

    I did just just like the PDF said,and the bomb became invisible all along in the timeline.

    Hope you can fix this soon.And thank you for all the nice tutorials!

    • zengyuanelsie1 1 年, 9 ヶ月 前  | 

      I had the same problem and solved it with this:

      prune>primitive pattern>input last modified primitives

      • JoeRan 1 年, 9 ヶ月 前  | 

        i had the same problem! thank you!

        • AbhishekDhiman 1 年, 6 ヶ月 前  | 

          input last modified primitives
          thank you

      • HArrCorr 1 年, 2 ヶ月 前  | 

        thx, had the same problem,

  • dimitridev 2 年, 2 ヶ月 前  | 

    thank you, great lesson!

  • khyathikkrishna1223 2 年, 1 ヶ月 前  | 

    it was a very good one, learned a lot. thanks

  • dhuiting 1 年, 10 ヶ月 前  | 

    Hi! I noticed the orient along curve works while we are on the construction plane (from 0-142) but at frame 143 when the cap starts rising up toward the bomb, it gets slightly off from the poly wire. It's close but not exactly on. Why is this?

  • JoeRan 1 年, 9 ヶ月 前  | 

    Unfortunately I'm stuck in the last step (number 11 - Render pyro fx)
    Despite having 40 GB of RAM on the PC, the computer does not hold up!
    Crash at the exact moment I enter the pyro effect usd.

  • jjin10688 1 年, 8 ヶ月 前  | 

    simple fire ball is not working help

    • rmagee 1 年, 8 ヶ月 前  | 

      Did you change the start frame to 200 and the Frame Range to 200-240? - Part 8 steps 1 and 2

  • Dohesh 1 年, 7 ヶ月 前  | 

    my file is exporting in usdnc how can i save in USD

    • shung1021 1 年, 7 ヶ月 前  | 

      when you try to bring in the USD in the reference node, there should be a drop down menu on the lower right hand corner that says "*.usd, *usda.... etc.," change that to just "*" and you should be able to see your USDNC files

      • Dohesh 1 年, 7 ヶ月 前  | 

        i also tried this method and its showing usdnc files but there is 1 error and the error is
        "Unable to find layer file: 1/Houdini/Destructtion"

      • AbhishekDhiman 1 年, 6 ヶ月 前  | 

        Thank you

    • shung1021 1 年, 7 ヶ月 前  | 

      i assume the NC in USDNC simply means Non Commercial

  • shung1021 1 年, 7 ヶ月 前  | 

    Thank you so much for this tutorial Robert! This tutorial helped me so much in getting started in Houdini!

  • jc.kumar.1002 1 年, 6 ヶ月 前  | 

    can you please help me with this?
    i am not finding Attribute adjust vector

  • fantasio 1 年, 5 ヶ月 前  | 

    Hi, I got an error when selecting Simple Fracture for the bomb. The network nodes are created but there's an error saying:
    "Error: Invalid source/obj/bomb_geo_fracture/rbdmaterialfracture/init_opencl"
    Anybody has an idea what's happening?
    Thanks a lot

  • fantasio 1 年, 5 ヶ月 前  | 

    I've change the Preferences of OpenCL Device from GPU to CPU and it seems to work.

  • taku5842 1 年, 4 ヶ月 前  | 

    Hi, I have a question.
    In part 6, the spark effect is output in the opposite direction (traveling direction), is there a solution?

  • natrianvfx 1 年, 4 ヶ月 前  | 

    Great tutorial. I had a lot of fun following this videos. Fx destruction is really fun!

  • Protozoaire 1 年, 4 ヶ月 前  | 

    Where are the tutorial scenes please?

    • rmagee 1 年, 4 ヶ月 前  | 

      This lesson is designed to be built from scratch.

  • enzo.nhr 1 年, 3 ヶ月 前  | 

    My popnet create particules in the wrong direction, as if the particules were created inside the sphere, not outside, which cause the soot trail to go the opposite direction it supposed to be :(

    • Kucheryat 1 年, 2 ヶ月 前  | 

      you should try change scale-time in popnet node to about 0.20. that helped me

    • Crazy_Chintu 11 ヶ月 前  | 

      thank you.
      It helped.....

  • LukeP 1 年, 3 ヶ月 前  | 

    Overall comments about this book and this training. I think it's a good example of how things should not be written and examplifies problems with Houdini documentation. For me at least. I'm sure others' opinion will be different. That doesn't mean that it wasn't useful. You can still learn Houdini from it, but it's supposed to be a Foundations book, right? Meaning that the focus should be on explaining core concepts. Something that MOEEN SAYED does really really well. Lets take tutorials in this book. There's very little explaination. Do this, set this, type this, without explainations is not helpful. Neither is going from basic concepts to some advanced ones. Again, perfect example of what needs to change wrt to Houdini documentation.

    • rmagee 1 年, 2 ヶ月 前  | 

      Thanks for the feedback. The goal of this book/tutorial series was to help artists build muscle memory and learn how to accomplish day-to-day tasks as they get through their first few projects in Houdini - this will lead to questions that they can begin to explore using other learning materials. In fact, we commission Mooen to make tutorials for us to add that other layer. So in the case of this book, Foundation means getting comfortable with the software and touch as much of it as possible rather than diving into core concepts.

  • Kucheryat 1 年, 2 ヶ月 前  | 

    Hi, i need help on step 5. Problem started after adding attribute transfer. Particles are not going in direction of the fuse. All steps before are working correctly. What should i do?

    • Kucheryat 1 年, 2 ヶ月 前  | 

      oh, sorry, i found the problem

  • Peps 1 年 前  | 

    hola buen dia, tengo un problema en la leccion 11
    dice asi
    576 fatal error Segmentacion faul crash log saved to
    C /Users/Usuario/Appdata/ Local/ Temp /houdini_temp/crash.destruction_11a.usuario_576_log.txt

    alguien podria ayudarme, gracias

  • dhruvthole2609 11 ヶ月, 1 週間 前  | 

    Hi, I need help. When I used simple Fracture, the bomb just rolls over the ground instead of blasting.

    • Kaylinnb 2 週間, 6 日 前  | 

      I am having tthe same issue. Have you had any luck fixing it?

      • Kaylinnb 2 週間, 5 日 前  | 

        I've managed to fix it! In the rbdmaterialfracture node, under contraints, either delete the glue constraint name, or lower the primary strength

  • lowrid3r7 10 ヶ月, 4 週間 前  | 

    Hi! I had the same problem. In the rbdmaterialfracture node delete the Glue from Glue Constraint Name.

    • Fernando_Criativo3d 7 ヶ月, 2 週間 前  | 

      Thank you!

  • planimation 10 ヶ月, 4 週間 前  | 

    On Video 5) at 6:20 I put in the code $F >199 but my partials don't die after frame 199 anyone know what the issue is, cheers!

    • planimation 10 ヶ月, 4 週間 前  | 

      Solve it! i forgot to click Enable in the V Expression

  • planimation 10 ヶ月, 4 週間 前  | 

    anyone know why my sparks are going through the floor? video 06?

    • planimation 10 ヶ月, 4 週間 前  | 

      ah found it, it's because I name my attrbadjustfloat1 to LIFE to life.

  • planimation 10 ヶ月, 2 週間 前  | 

    currently on video 11, around 3:05 once a add the prune node i put $F>200 but it doesn't work, is this because i'm using a UK keyboard not sure how to fix this please help cheers!

    • planimation 10 ヶ月, 1 週間 前  | 

      so i solve this by creating the node again

  • planimation 10 ヶ月, 1 週間 前  | 

    I got a new problem, currently on the last video and I don't see the pyro render only the dust.... what do you think happen?

  • ktjk1 10 ヶ月, 1 週間 前  | 

    I've been working my way through the Houdini basics course, but I'm stuck. When I finally render, the material library node is applying a pyro shader to the material VOP input field, but all other geomatry's materials disappear and I can't recover them. I've followed this process at least 10 times and studied the information, but I can't get it to work. Houdini is a good program, yes, but it's too unstable and finicky. It's a program that doesn't give me the same result even if I follow it exactly without missing a single moment. I don't think it's a good program in that sense. I need to find another good program.

  • Harry__243 10 ヶ月, 1 週間 前  | 

    I´ve a question. Working on Part 10, my Prune Notes don´t work (both). Does anyone has an Idea? I killed my presets, using the default but the Problem is still there.
    My Workaround, using the time-expression directly in the Primitive Count of the Reference Note works fine and delivers the expected results... but this doesn´t fix my prune issue. Does anyone has an idea (using Houdini 20.0.590 on Windows).

    • Harry__243 10 ヶ月, 1 週間 前  | 

      I´ve found the issue... the prune note defaults have been changed. In Target Primitives under Primitive Pattern I had to choose `lopinputprims(' . ' , 0)`

  • m.colonnelli 10 ヶ月 前  | 

    Fantastic tutorial. At the moment, I only have one problem that I don't know how to solve: when I switch to render view (Karma), all materials look good except for the "Soot" where the particles turn into very large spheres. Do you know how I can solve it?

  • carlosvega 9 ヶ月, 3 週間 前  | 

    Hi, i have a problem, i'm in the part 7, and when apply the simple fracture and set up the fracture solver, delete the glue, and run the simulation, the bomb rolls instead of break, like all the pieces are glued. Can anyone know how to solve it?

    • MTU1500 8 ヶ月 前  | 

      I had the same problem. I solved it to put the strenght on 0 in Advanced ==> Glue ==> strength.

      • pulppixel 1 ヶ月 前  | 

        Thanks!!!!

  • Fernando_Criativo3d 7 ヶ月, 2 週間 前  | 

    Dont know why the the end my particles are going inside the bomb not outside the bomb.

  • Fernando_Criativo3d 7 ヶ月, 2 週間 前  | 

    I found a way to overcome this problem, in SPARKS, in attributadjustvector2 set the "preprocess" to Reverse Direction. Also set constant in Y to 0,75. Suits more for me.

  • hiroyasuo 7 ヶ月, 1 週間 前  | 

    I'm trying to create the rbd explosion, but instead of shattering, my bomb geometry is just rolling? Any ideas as to why? I've following the instructions to a T

  • sheepplays 7 ヶ月 前  | 

    By Fireball isn't interacting with the bomb fracture. and I noticed there is no longer the "No Promotion" selection on detail attributes

    • sheepplays 7 ヶ月 前  | 

      Nevermind found out my peak somehow uncoupled from attribute adjust vector.

  • Fernando_Criativo3d 7 ヶ月 前  | 

    Hi I'm stuck whem I'm going to merge the references.....dont know why when I merge the fuse it is bellow the zero Y axe....in the obj level is correct it is only happeninh when I merge the reference. thank you

    • rjorr04 3 ヶ月, 3 週間 前  | 

      If you check the fuse on an object level in build, you probably had the y and z parameters adjusted. So what I did was copy those parameters, and then put them into a transform node under the reference node in solaris.

  • MouseClicker 5 ヶ月, 3 週間 前  | 

    thanks for this great tutorial! One small good thing to add would be a short explanation why exactly each check box is being enabled to understand what it is doing.

  • prashanthprabudev 5 ヶ月, 2 週間 前  | 

    hi while creating a soot trail, particles not following along the curve i mean that cap what we create at the end of the fuse that cap is aligned along the curve so when i play all the cap is emitting those particles in its respective direction. how to solve this.
    1. do we want that cap all over the curve or just one cap is suppose to follow that curve.
    2. if the several cap along the curve is correct then how to stop all the cap emitting the particle at once

    • prashanthprabudev 5 ヶ月, 2 週間 前  | 

      got it found out the mistake i had missed making target point zero, now its working fine!!!!

  • parakhpushp30 3 ヶ月, 2 週間 前  | 

    trying to follow the lesson and set up Solaris but getting this error need help
    Error
    Unable to find layer file: D:/Houdini

  • parakhpushp30 3 ヶ月, 2 週間 前  | 

    trying to follow the lesson and set up Solaris but getting this error need help
    Error
    Unable to find layer file: D:/Houdini
    even though i have set to correct path as when switch to geo its all there i can the elements but when switched to Solaris i did same but mine showed this error and no geo is displayed

  • mbellino 3 週間, 6 日 前  | 

    There is an error in Video 7 when you are supposed to save the exploding bomb into a cache file. You need to un-tick "Time Dependent Cache" on the fracture_io tab. If you don't do that the cache will save a single file for each frame.

  • mbellino 3 週間, 6 日 前  | 

    Actually not. Saving the with "Time Dependent Cache" not selected creates a file that is too small. In the video the cache file is 17.22 MB while the file I produced is only 399 KB so something is wrong.

    • mbellino 3 週間, 5 日 前  | 

      After re-performing the process, it worked fine.

  • addis_tad 2 週間, 3 日 前  | 

    in video 10 after exporting all the .usd when i import the fuse the postion was different from the object level it lowers itself how to fix this . Help please

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