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How do I get the output back / output back group to be offset to add thickness ?
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Currently the id=1, although using all the points on the curve won't fit well, I understand; but then you mention, I can use a specific subset of points that I want to use and set the id for that subset to 1 (id=1); although the id is already set to an id=1 ? In using a subset, I can set the focus point although still maintain control of the curve if I don't use a subset; as it is currently ?
- Today
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Hello, I'm new to Houdini and fairly new to 3D modeling and FX fields as a whole. I'm wondering if have external texture maps like color maps, displacement maps, normal maps, etc, if I would be able to somehow apply these to a mesh in Houdini provided it has UV's. I searched a bit to find information on this , but all that I found had to do with created the texture maps within Houdini itself. Hope this isn't too simple of a question!
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As I believe this is built-in function so you can't see implementation of it. For many other noise related stuff, take a look into $HFS/houdini/vex/include. In particular gNoise.h might be interesting for you.
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Hey, I guess it's made with particles which are blurred in post ! You can make three sims : one which emits constantly for the blast shape, another one which emit every 2-3 frame for the circles that are around the blast and another one with some noise so it adds some turbulence in the blast. I tried an approach but I guess most of the work is done in comp blast.hipnc
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Like xnoise, and other noise functions. Are those in header files?
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Hi Peon, Did you ever get a solution? Having exactly same issue. Thanks.
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Hi!! I'm trying to Drop of water Fx ・Reference movie https://vimeo.com/14054601 https://forums.odforce.net/topic/30773-water-drop-splash/?tab=comments#comment-171664 The conditions I want to do 1.Water droplets are small like sweat 2.I want to make a series of fall and bounce 3.I want to shape like a crown The data I was making is this, but bounce does not work well can you help someone drop_190419.hipnc
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Issue with playback simulation on low ram (32gb) pc
mangi replied to ColecloughGeorge's topic in General Houdini Questions
Hi, I have 32 RAM aswell. I was helping a person here on ODFORCE with some "ARNOLD" render options etc... Ya that was no able to move in the view port etc... So for me what I did was ROP output the sim to a bgeo sequence. And the loaded it back in with the File node. Also if you export Deleting some attribute that you don´t need the bgeo file size will decrease considerably. However. this is only for viewing purposes. then if you need to tweak etc.. just do the same but manually delete the files. You make another process . Okay it´s just a suggestion okay. I would not consider this something but a PATCH to do something due to the fact that you are experiencing a lack of RAM , Cheers Mangi -
Unless it's implemented in VEX header files (i.e. in VEX), its source is closed. Which one you're interested in?
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This is just an option/example (related to your first picutre). If you don't want to use all points you can filter by id. By default you can use all but usually a curve with degree 2 won't fit good (higher degree has better chance for better fit). If you know you have a specific subset of points you want to use , you can set the id for this subset to 1.
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Houdini 17.5.173 Centos PDG cores use
stheos replied to gpapaioa's topic in General Houdini Questions
Try setting the 'Maximum CPUs to Use' to 1 in the Local Scheduler. -
Is there a way to find the source code for a specific built-in VEX function?
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How can I jump out of a ‘take’ to resolve this?
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polyExtrude SOP with backface is not working for you?
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This question has been asked before but the thread I found on the subject I can't seem to copy; that is, how do I add thickness to an object ?
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Issue with playback simulation on low ram (32gb) pc
ColecloughGeorge posted a topic in General Houdini Questions
Hi Guys I have a fairly high res flip sim (by student standards, about 3 gig per frame) and I needed to cache it out as a .sim to utilise checkpoints I need to read this simulation in using playback simulation on the dopnet and a dop IO node with the flip presets in order to pull in the velocity fields for a whitewater sim, however when I do this the computer gets stuck on the first frame I load in. My only current solution is to go through every frame, unticking and reticking the playback simulation button which would take me 2 minutes of load time per frame for 432 frames. An alternative I've considered is the Houdini python module however I am not familiar with this and don't know if the required functions exist. Please could someone with more knowledge on this tell me if this is possible in the python module or whether there is an alternate solution such as a way to pull velocity fields from a .sim cache Thanks George -
I sorta see what you mean; but how do I define which points are filtered out; which will result in different ids ?
- Yesterday
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You can define which points are filtered out. You will get different results with different ids. You know how to calculate the focus? As hint: If your parabola is y = a*x^2 + b*x + c the derivative is y' = 2*a*x + b. What will happen, if the derivative is 0 (base) and 1 (reflection at this point is from vertical to horizontal (45°)).
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How do I know where the focus is, when filtering out only points with an id=1, since there are many points with an id=1 ?
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Hello all! I have a question concerning SOP Solvers in an Auto DOP Network. Im using SOP Solvers and switches to activate fracture geometry at certain times. I am trying to activate a second RBD object in the scene. Inside my SOP solver how do I specify which object the DOP import node fetches from the network? My_Scene.hipnc
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This is a bit of a naive test but see if it helps chop_up_shape.hip
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in a python sop you can use the pressButton() argument pointing to your file cache "save to disk" parameter (might have to use evalparm as well) that will in essence physically press the save to disk button on every cook. combine that with the detail attribute filepath variables and that should be all you need also you can set a global variable holding your detail expression (under edit menu > aliases and variables > variables), say $CACHE = `detail(blahblah)`, then use $CACHE in your filepath instead of that expression, allowing you to read everything back in as packed prims in a single node using the filemerge sop utilizing that variable (similar to how you can load back in multiple wedge passes)
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Houdini 17.5.173 Centos PDG cores use
gpapaioa replied to gpapaioa's topic in General Houdini Questions
Yeap Luke I understand. If you check the Entagma link, they are using TOPs to run multiple frames of VDB meshing and turn a single core process to a multi-core one. They are on Windows and CPU load goes 100% on a 12core system. -
Houdini 17.5.173 Centos PDG cores use
lukeiamyourfather replied to gpapaioa's topic in General Houdini Questions
Linux doesn't have anything to do with it. Some algorithms used by Houdini use a single processor core. In those cases performance can be improved by running multiple tasks concurrently. You would see 100% processor utilization only if there were more concurrent tasks than processor cores. Other algorithms will use all processor cores available. It all depends on the specific scene and how it's built as to how well it will scale to multiple processor cores.
