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3rd Party » HtoA Crowd Simulations
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- akvahouse
- 17 posts
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Hi, I also looks how to render in arnold crowd, but seems its no so easy like in mantra
Technical Discussion » Problem with particles advected by volume
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- akvahouse
- 17 posts
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ziconicI saw this post earlier, but this doesn`t help, in my case I scale fluid also, not only rotation and movement))
Perhaps this post may help? https://www.sidefx.com/forum/topic/50212/#post-226844 [www.sidefx.com]
Technical Discussion » Problem with particles advected by volume
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- akvahouse
- 17 posts
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Hi, I'm stuck with some difficulties when i transform volume cache by transform node and after that use in POP network through “popadvectbyvolumes”. Velocity after transform doesn't work right, so how I can transform properly this parameters in volumes?
Technical Discussion » How to avoid particle loss in FLIP fluid sim?
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- akvahouse
- 17 posts
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ysysimonCan you share your scene?akvahouseysysimonBut if my geo collider moves definitely fast, I use pop fluid in basic pop solver, because flip doesn`t fit to this type of sim I think.billyslol09
Greetings, I deal with the same problem in a more basic level, I'm trying to fill a glass with water and I'm losing volume as you can see below
How many substeps is a good starting point?
Hello.If your collider is not moving at high speed, then you do not need to increase substep.
You need to decrease the Grid scale.
It can fit.The trick is to use transform instead of deformation, if your colliding body is rigid body motion instead of deformation
Technical Discussion » How to avoid particle loss in FLIP fluid sim?
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- akvahouse
- 17 posts
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ysysimonDo you mean this transform?
better velocity extrapolation
Because I have an alembic from which I take a glass, and so far I haven’t succeeded with the flip.
Edited by akvahouse - 2020年4月12日 11:21:03
Technical Discussion » How to avoid particle loss in FLIP fluid sim?
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- akvahouse
- 17 posts
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ysysimonBut if my geo collider moves definitely fast, I use pop fluid in basic pop solver, because flip doesn`t fit to this type of sim I think.billyslol09
Greetings, I deal with the same problem in a more basic level, I'm trying to fill a glass with water and I'm losing volume as you can see below
How many substeps is a good starting point?
Hello.If your collider is not moving at high speed, then you do not need to increase substep.
You need to decrease the Grid scale.
Technical Discussion » How to avoid particle loss in FLIP fluid sim?
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- akvahouse
- 17 posts
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Hello, I have a question on flip simulations, with a quick movement of the glass, the liquid particles just evaporate.
How to overcome this problem? I've already tried adding substeps wherever possible.
How to overcome this problem? I've already tried adding substeps wherever possible.
Edited by akvahouse - 2020年3月10日 20:52:19
Technical Discussion » Strobbing with fluids in Retime SOP
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- akvahouse
- 17 posts
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Good afternoon, I noticed a problem with the retime of fluids, it starts to flicker after using retime SOP. I use retime node with next settings:
I have velocity field, but this doesn`t help solve problem.
Example:
I have velocity field, but this doesn`t help solve problem.
Example:
Technical Discussion » can you rotate fluid containers?
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- akvahouse
- 17 posts
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Hi guys, I tried to rotate fluid container and got a strange result, the simulation just rotates, as if you make a transform node after the node cache file.
I want to optimize container size and don`t rotate all scene, can I do this job in Houdini?
I want to optimize container size and don`t rotate all scene, can I do this job in Houdini?
Technical Discussion » Trouble with creating deform guides in Houdini 17
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- akvahouse
- 17 posts
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Good afternoon, I had a problem with the transfer of the groom guides from static geometry to animated. I have alembic which I unpacked and converted into polygons so that the geometry was fully accessible. I created a groom and wanted to apply it to alembic, but I got the following error:
When I began to figure out what was happening, I tried to re-create the scene and load the alembic, it turned out that if you do some operations inside the grooms guide, then you get this error, and this does not happen at 16.5!
When I began to figure out what was happening, I tried to re-create the scene and load the alembic, it turned out that if you do some operations inside the grooms guide, then you get this error, and this does not happen at 16.5!
Edited by akvahouse - 2018年10月16日 17:03:46
Technical Discussion » How to make large scale dust simulation?
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- akvahouse
- 17 posts
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Hello everyone, I have a question, how to make a dust simulation from the crowd? I have collected an approximate variant, but I think there is a more correct way how to make this simulation more realistic. I made an emitter of particles from each soldier, and then applied volumerasterizeparticles.
I made an emitter of particles from each soldier, and then applied volumerasterizeparticles.
If anyone can help, I will be grateful. Thank you for attention!
I made an emitter of particles from each soldier, and then applied volumerasterizeparticles.
If anyone can help, I will be grateful. Thank you for attention!
Technical Discussion » Troble with shading ocean
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- akvahouse
- 17 posts
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The problem was been in different positions of volume geometry node and ocean surface.
Technical Discussion » Troble with shading ocean
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- akvahouse
- 17 posts
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Hello, I did the ocean for the “INTERMEDIATE OCEAN FX” lesson, and unfortunately I got a strange result on the render. First I think is the trouble with displacement bound, but increasing this parameter don`t affect on render, only increase time of render.
Some picture of my scene setup:
If anyone can help to solve this issue I will very appricieted.
Some picture of my scene setup:
If anyone can help to solve this issue I will very appricieted.
Edited by akvahouse - 2017年11月28日 16:08:43
Technical Discussion » Trouble with cache fluids in vdb format or bgeo
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- akvahouse
- 17 posts
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jsmackThanks for help, you right, name of default object was wrong ^_^
Can't tell from the video what's going on. You never showed the geometry spreadsheet or middle clicked the dopimportfields node to show whether or not it was importing anything. I suspect it is not, and that's why it doesn't write anything out. Ensure the object name specified by the dop import is correct.
Technical Discussion » Trouble with cache fluids in vdb format or bgeo
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- akvahouse
- 17 posts
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tamteThere were no errors in Geometry ROP. This is source network:
what is the Error on Geometry ROP saying?
And DOP:
Technical Discussion » Trouble with cache fluids in vdb format or bgeo
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- akvahouse
- 17 posts
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jsmackI have setup scene, where all work perfect, sim cached, so I use this scene for starting point. Only change the source of volume and size of container. Network the same.
Can't tell from the video what's going on. You never showed the geometry spreadsheet or middle clicked the dopimportfields node to show whether or not it was importing anything. I suspect it is not, and that's why it doesn't write anything out. Ensure the object name specified by the dop import is correct.
Technical Discussion » Trouble with cache fluids in vdb format or bgeo
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- akvahouse
- 17 posts
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Hi people, I am trying to cache fluid sim to vdb or bgeo format, but size of each frame of cache is 1-2 kb.
I tried to do on different versions, the result is the same
Link to video:
Please help!
I tried to do on different versions, the result is the same
Link to video:
Please help!
Edited by akvahouse - 2017年10月9日 12:47:29
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