Pyro for Beginners: Pyro Simulations in Houdini
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- เผยแพร่เมื่อ 23 ก.ค. 2024
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In this video Part 2 of the Pyro Mini-series, I continue right off from the Smoke Emitter and I start setting up the dopnet Pyro simulation. This is where we bring the smoke alive by manipulating it with the Smoke Emitter that was created in the last Part 1 video. I demonstrate how the Pyro simulation will be different when you are constantly pumping or constantly feeding in new smoke every frame and compare this to the smoke emitter that is fixed.
(Part 1 Previous Video) Smoke Emitter
• Pyro for Beginners: Sm...
(Part 2, this video! You're watching it!)
(Part 3, Next Video) Pyro Solver
• Pyro for Beginners: Py...
For more information on the basics of a volume, check out this video
What is a Volume? in Houdini for Beginners | Core Concepts
• What is a Volume? in H...
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My Blog usually contains shorter tutorials that aren't really worth making a video on or sometimes if I want to release a tutorial earlier I would post it on my blog, simply because making videos take a lot of time.
#houdini
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简明扼要的讲清楚了Pyro的基础框架，非常优秀的视频，感谢作者付出！
This is the best explanation I've seen until now and I learned a lot, Thank you!
Thanks for watching!
I've found that a majority of Houdini tutorials just get you to follow along and you never really understand the underlying mechanics of what you just did. By contrast, your tutorials dive under the hood, and I love your side by side comparisons. Great work!
Thank you so much!
This is very very very clear on every part of simulation ,thank you very much and expecting more tuts from you.
Thanks for watching!
You are the Best!! This is so kind to beginners and you not just showing off while we follow...
Thanks for watching! I'm very happy you like my videos!
This is better for beginners... Thank you bubble pins
Thanks for watching!
Thanks for making pyro so easy, expecting more tuts from u.
Check out some of my Live Stream tutorials, it makes it easier to create content! I've been hosting a lot of tutorials in the form of Live Streams. KineFX, FLIP blending with Oceans, Crowds, ...
you are amazing , your explanations are so clear ! I would like to know if you have more tutorials about Houdini because i am learning it and your style is cool .
Yeah, I'm super behind on the free tutorials... I'm currently working on this FLIP sim scene for my members that I'll be reusing some of the assets for my upcoming FLIP + Ocean free tutorial, hopefully this can speed up my production time. But I'm just so behind.
Thanks for your patience!
@@bubblepins i would like to know , how you have the finite smoke while the pyro slover is connected to the volume source , i miss something ?
@@alexcatrinedeselvepilot3334 I disconnect the volume source at 8:25
@@bubblepins ok , thank you
best tutorial for pyro beginners
Thanks so much!!
Ty sensei!!!
Thank you for watching!
I would buy a book on Houdini simulations if you wrote it.
I never thought about publishing a book before. But the book would go out of date really fast, because Houdini is changing every year.
omg u are reading my mind i am finding this
I'm glad you like it. It was long overdue for a pyro tutorial, I should have made one earlier. I'm hoping to combine the pyro sim with RBD destruction to make some nice explosion scenes.
Thanks for watching!
amazing tutorial, one thing i need to ask though is, everytime i leave my dopnet node, the smoke simulation isn’t there? but when i go into the node, everything’s perfect??
That's something you need to get use to in Houdini, everything in the DOPNET is simulation data, you need to extract it out into the Object context using a Dop Import node, that will extract the sim data out and you'll be able to render the pyro by applying a volume material, if you see don't see anything in the render remember to tweak the density values. Sometimes you may need extreme numbers. However this is all past tense now, SideFX has introduced a new SOPS Pyro nodes, that allows you to setup pyro right in the sop and we no longer need the DOPNET anymore. Unfortunately I haven't had much time to play around with the pyro sops yet and I think my gpu is getting quite dated, because the last time I tried it out it takes my gpu forever to do anything.
Hope this helps!
Can't see anything in my DOPNet, has happend many times before still the same issue. No idea how to solve it all i get is a boundbox
Make sure that your pyro emitter is inside the boundbox. THe BOund box sort of defines where the pyro simulation will exist. Anything outside of this boundbox, nothing will happen. This is a way to tell Houdini to optimize the scene so Houdini will only calculate within the boundbox. And if that doesn't help, try increasing the volume emission in the smoke object node. And if you're using volume source node, increase the emission there.
See if that helps!
it disappears when is only initial data... any sugg?
Like 9:46 ? When you remove the fuel, only the initial data is powering the simulation, but like the name implies, initial data only happens at the beginning and only happens once. I hope I understand the question.
It's like those solar powered calculators, once you turn off the lights, the calculator will only last for so long until it runs out of power or when you turn on the light again to re-fuel it. If you leave the lights on, the calculator will run forever, like in the Pyro sim Fuel parameter, it constantly keeps feeding it in.
Why do I get such a drastically different result from you? I followed your previous video and this one but at the end my puff of smoke is a pathetic little blob that disappears almost immediately while yours looks super interesting and realistic.
Can you describe to me what's different? Is your smoke being cut off on the bounds? You can make the bounds larger in the smokeobject node, inside the dopnet. What voxel size are you using?
hi
Pyro for Beginner Rendering -still "Work in progress" ... we are waiting for the sequel, when will it come out?
I am so sorry for that delay. I got side-tracked after the Pyro series was done, probably because I was so exhausted from editing the Pyro series. From what I recall it was a very long editing process for this series. In H19, Sidefx has introduced some new features for the Pyro sim's.
I have lightly talked about it in a Live Stream here, if you're interested:
th-cam.com/video/VNsY8s_4ltM/w-d-xo.html
But I am planning on coming back to the Pyro with some new content like volume velocities! I really want to get into designing your own volume velocities for Pyro, I think the effects would look amazing!
@@bubblepins great news. We look forward to your new tutorials.
@@maxmudjonshokirov3 Thanks for the patience!
This is great! What is the difference between pulling in the volume attributes (e.g., temperature/density) in the Smoke Object node as opposed to the Volume Source node? Are there any advantages or disadvantages either way?
In this tutorial, the guy pulls in the attributes in the Volume Source node: th-cam.com/video/W3keFF3VA7M/w-d-xo.html&ab_channel=neerajshrivastava
The volume source is getting updated information on every frame. The Smoke Object node is more like instantiating the pyro instance once, sorta like importing it once and then you keep using that imported data throughout the simulation. But the volume source node is more like importing it every frame, so if something changes in the middle, say frame 50, the density increases or something that will reflect into the data that you import. Hope that helps! I'm not sure if I'm making much sense in this comment.
@@bubblepins Ah, that makes a ton of sense! Thanks so much :)
Are you Saint or something? Thank You!
Thanks, I'm happy the video helps!
Thank you. For info, it is impossible to make any subscription to your channel because you are in "youtube children mode"...You should switch to normal mode so that we can subscribe.
Thanks for watching! I'm not sure what mode that is.
when you make a youtube channel it asks if your content is for children, TH-cam makes this differentiation for content purposes, and they mean if its literally meant for children and not only if children can watch it, it can be misleading.... But then if it is "childrens content" the channel has a series of restrictions like the one mentioned.
Your content is amazing and has been very helpful, thank you so much.
@@AlexeiX1 Thank you for letting me know, I'll look into this and see what I can do!