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総再生時間: 1h 8m 23s
このレッスンでは、コーヒーカップのモデリングと、そこに落ちてくる大量のガムボールのダイナミクスシミュレーションを体験し、Houdini の基本ステップを学んでいきます。テクスチャとマテリアルを適用してライトとカメラを配置したら、完成したシーケンスをレンダリングしていきます。このショットの全工程に触れることで、 Houdini の操作方法とそのノードベースのワークフローを習得する第一歩となるでしょう。
このレッスンには、動画チュートリアルに沿って進める際、工程を順にたどって確認できる PDF も含まれています。
このチュートリアルで学ぶ全レッスンの概要を解説し、この後の流れをつかめるようにします。
始めるにあたり、普段よく使うペインを中心に Houdini ワークスペースの見方を習得することが重要です。同時に、PolyExtrude、PolyBridge、PolyFill 等のツールを使ってコーヒーカップをモデリングしていきます。
コップのモデリングから一度離れ、Network ビューでノードを使った作業をしていきます。これらのノードが、そのネットワークのデータの流れを上から下へ記述する際のレシピになります。ネットワークを読みやすく整理する方法を身につけましょう。
次は Rigid Body Dynamics を使って、先程モデリングしたコップの中にガムボールを落としていきます。それには、内部にポイントを散乱させたボックスをコップの上方に配置する必要があります。
レンダリング用シーンの作成に向け Houdini の Solaris、即ち LOPs コンテクストにジオメトリを持ち込みます。LOPs は、KarmaXPU でレンダリングする際にシーンを準備するのに用いられます。
地面にテクスチャを適用するために、Copernicus コンテクストでプロシージャルな画像を使った作業をしていきます。最初に Quick Surface Material 上でボタンをひとつ押せば、そこからネットワークを構築できます。
ここでガムボールを Solaris に持ち込みショットを完成させていきます。ここでは USD ファイルにジオメトリを直接エクスポートし、それをリファレンスして再びステージに戻していきます。その後、シーケンスをレンダリングして再生し、ショットをレビューします。
次に、クライアントから、ガムボールを卵形のお菓子に変更する等の依頼が来たケースを想定します。同じクライアントによる、コンプの効果を追加したいというもうひとつの要望には、Copernicus のノードで作成した Slap Comp を使って対応していきます。
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コメント
chrisabruce 4 ヶ月, 4 週間 前 |
This is a great set of beginner lessons. I like how it covers all the newer features like solaris and copernicus.
knockflakes 4 ヶ月, 4 週間 前 |
Thänx a lot for this great tutorial! So many useful tipps!
PerpetualZest 4 ヶ月, 3 週間 前 |
Just leaving this comment in case someone has a similar issue. I had an issue with shadows not displaying in the viewer in Solaris (Video #4). I realized that I only had "Full Lighting" enabled, but I needed the next button down, "Full Lighting with Shadows" to be enabled instead. They are small buttons on the right side of the viewer that look like a lightbulb with a "+" sign inside.
Anyway, thanks for posting this series, I'm enjoying learning from it so far.
LuzidVision 4 ヶ月, 3 週間 前 |
Just as PerpetualZest said, to have the cup cast shadows on the ground in the viewport render, go to
Scene view -> Display Options -> Lights Tab -> Lighting Quality: Full Lighting with Shadows
piumal89001 4 ヶ月, 3 週間 前 |
perfect tutorial.really good for beginners.❤️
ertemi 4 ヶ月, 3 週間 前 |
This is truly the best tutorial I have seen so far.
You can see the effort put into explaining every detail.
Thanks to Mr. ROBERT MAGEE
ashimialz163 4 ヶ月, 3 週間 前 |
very useful for beginner like me，thx a lot
markeloff 4 ヶ月, 2 週間 前 |
does anyone know how to solve this error from video 6?
"Unable to find layer file: 20.5.278/projects/overview_lesson/usd/gumball_sim.usd"
"Targeted missing explicit primitive: /gumball_sim"
the error is at the reference node
johntdp 4 ヶ月, 2 週間 前 |
I got stuck in Chapter 3. Can’t get Copy to Points to work. I have nothing selected, click Copy to Points. I get the prompt to select the first object. I click on the node for the sphere and hit enter, but then do not get the second prompt to select the box. Instead it just opens up the sphere node. What am I doing wrong? Thanks!
chretien 4 ヶ月, 1 週間 前 |
I got the same issue, I solved it by placing my cursor to the viewport panel instead of having it in the goemetry panel.
Hope it helps.
chretien 4 ヶ月, 1 週間 前 |
to clarify, after clicking copy to point and selecting the sphere before you hit enter move your cursor to the viewport panel not the node/geometry panel.. hope it clearer
vstevenson 4 ヶ月, 1 週間 前 |
This is rarely ever mentioned in even the most fundamental beginner tutorials. I can count on my hand the number of times I've heard a presenter mention it having watched literally 100s of Houdini videos over the years. Thank you for taking your time to mention this very important note for new users.
pierrx666 4 ヶ月, 1 週間 前 |
in chapter 5
at the reference nod creation
at file pattern windows
I had to select the all files sign in the drop menu bottom right (the little star : only *)
because my usd file saved in the step just before is a .usdnc instead of a .usd as shown in the video
I was stuck here for 1 hour retrying the steps many times before I found this.
is it normal ?
Vin20 3 ヶ月 前 |
Yes it happened to me as well, thanks for the help, after clicking on the file, I also had to click the little box that said make path relative to current Directory
jollysweets 4 ヶ月 前 |
this was great, useful and easy to follow! thank you so much!
ignacio.nevarezzuniga 3 ヶ月, 4 週間 前 |
Excellent course, Robert is a great teacher
sina122020 3 ヶ月, 3 週間 前 |
Thanx. The best path for every beginner is to watch these videos first.
remlapeel 3 ヶ月, 3 週間 前 |
Good at points, but clicks without explaining a lot, and like a lot of tutorials is tell you what to click and not why.
Eddie_Roach 3 ヶ月, 2 週間 前 |
When I import my cup into solaris stage it returns to default. It loses the handle, the subdivisions, etc. Also the ground geo doesn't sit within the geo drop down of the scene grpah path after merging it with the cup geo.
Eddie_Roach 3 ヶ月, 2 週間 前 |
Looks like I had to change SOP Import Mode to "Display". I now can't seem to get any shadows on the ground geo when I add the point lights.
MataS9 2 ヶ月, 3 週間 前 |
How did you change the SOP Import mode?
BTW you have to use the buttons on the right of the viewport and select the one that has a lightbulb and a black hole thing under it to have shadows. good luck!
cruzdh2035 3 ヶ月, 1 週間 前 |
In chapter 6 when I click "File Pattern" to import the balls to the stage, the file gumballs_sim.usd doesn´t appear. I hope someone can help me with this problem :(
rmagee 3 ヶ月, 1 週間 前 |
Are you using apprentice? Then you need usdnc. If that is not it then choose usd from the menu next to the file name.
cruzdh2035 3 ヶ月, 1 週間 前 |
It worked, thank you so much :)
Laura-89 4 日 前 |
I need help. I'm using Houdini Apprentice. I'm currently on chapter 6 trying to add file pattern. When I click on USD and see gumball_sim, it's got a folder logo next to it instead of a paper logo. When I click on it, there's nothing there. I am unsure of what to do?
Laura-89 3 日, 23 時間 前 |
Don't worry I figured it out :) However, I just pressed play on the animation and the gumballs are going through the floor :/ lol. What have I done wrong??
santanacarlos 3 ヶ月 前 |
Thank you for this very useful content. As a beginner it can be a bit overwhelming but this type of video helps a lot to understand the procedural functioning of Houdini.
skygenesis86 2 ヶ月, 4 週間 前 |
Hello All,
I have done this tutorial 3 times now and I keep getting the same error on part 6 step 8. After I click render to disk I get a red triangle with the errors:
"failed to create file "C:/Users/virid/AppData/Local/Temp/houdini_temp/usd_renders/usdrender_2756_1256_1/bump_normal.1.exr : No such file or directory"
and
"Unable to fetch texture file from COPs: op:/stage/ground_mat_maps/specular_color[1]"
Has anyone had this issue?
TailedWorld 2 ヶ月, 4 週間 前 |
Robert, is there any written form for this tutorial? I still learn via reading & doing. Yes, I am that old..
TailedWorld 2 ヶ月, 4 週間 前 |
Sorry.. just found the step by step pdf. Ty
MataS9 2 ヶ月, 3 週間 前 |
Hello. I am having a problem with part 6. I am using Apprentice if that helps in any way. For some reason the gumballs don't collide the same way in the OBJ network. Any help would.. help!
skspsenthilkumar 2 ヶ月, 2 週間 前 |
Experiencing the same. Any help?
rmagee 2 ヶ月, 2 週間 前 |
Hard to figure out without the scene file - can you post to learning forum and ping me to download - thanks
skspsenthilkumar 2 ヶ月, 2 週間 前 |
Thanks for the reply. Sent files for your perusal.
piddmotion 1 ヶ月 前 |
hi, i have the same issues. where can i see your post?. i can't find it in learning forum - thanks
Victor1997 2 ヶ月 前 |
Hi, when i choose tube it comes up with just a white outline and nothing i do makes an actual visible tube appear.
adarve 2 ヶ月 前 |
Thank yo for this content, it help us a lot
KingGristy 1 ヶ月, 4 週間 前 |
Getting this error when trying to combine,
Event Queue Full. Events being dropped:
UI_EVENT_REDRAW to UI_Window
Event Queue dropping 13272 events.
Event Queue Full. Events being dropped:
UI_EVENT_VALUE_CHANGE to FUI_NetNavigator
Event Queue dropping 46 events.
Any ideas?
rmagee 1 ヶ月, 4 週間 前 |
Is this the latest build of Houdini 20.5? Maybe try another build or submit your issue to support.
Vinicius Freire 1 ヶ月, 3 週間 前 |
excellent class, I already had a headache looking for classes on YouTube, some say they are for beginners but they are not. I will watch all sidefx content. grateful
yev 1 ヶ月, 3 週間 前 |
Oh my god, this is so good! Thank you very much for your time and effort!
nghnerklc 1 ヶ月, 3 週間 前 |
I'm stuck editing the material properties. It doesn't have the same color options as the instructor's material. When I searched for "quick," nothing came up, so I had to look under "material" instead. I was hoping to catch up on the first day of the Mardini contest, but it looks like I have a long way to go. :(
rmagee 1 ヶ月, 3 週間 前 |
share your file on the Learning forum and ping me - I will take a look. And in the post let me know what version of Houdini are you using?
https://www.sidefx.com/forum/10/
nghnerklc 1 ヶ月, 3 週間 前 |
Hey dear instructor,
I'm so grateful for your responsive help! Today, Ive been granted an indie trial for the contest, and I just checked the "quick material" prompt in Solaris—it's there now! 😊 If I get stuck again, I’ll kindly reach out for your support. Thank you so much! 🙏✨
moselhyahmed6 1 ヶ月 前 |
how did you fix it
Character_animator 1 ヶ月, 2 週間 前 |
Thank you so much for such a great lesson. Everything is on the shelves and there is no confusion!!!
ale85 1 ヶ月, 2 週間 前 |
Hello, I have a problem, in Solaris when I set the metalness to 0.8 in the gumballs material and render it, the render is like full of little white dots on the balls and it goes away just if I reduce the metalness to 0.3 or lower. It's not the first time it happens and I have no idea how to solve it, I tried everything. Any help?
Thank you
canislupus 1 ヶ月 前 |
I have the same problem :((((
michallis 1 ヶ月, 1 週間 前 |
Great lesson, after having already some basic understanding, the added value is great as the tutorial is done with new features in mind.
Thank you
moselhyahmed6 1 ヶ月 前 |
hey i have the same problem as nghnerlc had
I cant find the quick material in the tap in solarias any help ?
rmagee 1 ヶ月 前 |
Is your mouse over the network? It won't work if your mouse is over the viewport - Also you need to make sure you are at /stage which is a Solaris network.
alexandrewill159 1 ヶ月 前 |
"Unable to fetch texture file from COPs: op:/stage/ground_mat_maps/specular_color[1]"
Has anyone had this issue?
canislupus 1 ヶ月 前 |
Hi, I'm stuck. Nothing appears to me about the "quick material". I tried to get a houdini indie license but I think that didn't help at all. I need help.
canislupus 1 ヶ月 前 |
Ok, I fixed it by putting in an Edit Material Properties but I don't get the options to change the color or anything like that. Now I don't get anything out of the COP Network, I can't edit the floor. Do I have to buy or download something specific so that these nodes come out?
KTTC 2 週間, 3 日 前 |
Hi all, im new to Houdini and this is a great tutorial however im having issue of some gumballs going through the cup, anyone know how to fix this or might be causing this?
Im wondering if i didnt do something right possibly during copytopoints?
TIA
rmagee 2 週間, 3 日 前 |
If this is happening at the end of the lesson it is possible that you didn't recache the simulation so the simulation is working with the smaller cut instead of the taller one.
marcinkepski1992 5 日, 9 時間 前 |
Shift + wtf? nothing happen
marcinkepski1992 5 日, 9 時間 前 |
update
dont use + from num keyboard
working.
Immy_Raja 2 日, 20 時間 前 |
hi there, really enjoying the tutorial but stuck on something,
in lesson six. when i go into object veiw and scrub, i dont see any gumballs
any help would be great
Immy_Raja 2 日, 18 時間 前 |
solved my own problem. i was had to refresh karma
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