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Showing results for tags 'Volume'.
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As you know we can bind a scatter field to pyro bake volume node, how can I create that field in the pyro dop network workflow?
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Hey all, I just encountered a very strange issue I cannot seem to find a solution to. I am using an RTX 2080ti with a Ryzen 9 3950X and when I try to render a volume in karma, no matter the light source, as soon as I increase the volume limit above 0, my volume turns blue. Even with a...
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Hi, we are turning some animated geometry (alembic, non-deforming animation) into clouds, but because we want the noise of the clouds to be in local space (not be affected by the animation), I am trying to work out how to apply the animation after the creating the clouds referencing the intrins...
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Hello people! I'm currently trying to render pyro exoplosion with the motion blur in Redshift and I didn't succeed with any of my aproaches. I tried Convert to VDB , and then Merge Volume in Velocity mode with the motion blur ON but nothing works yet. I found few HIP examples but they neather...
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Hello everyone! I have scene with emissive volume and no density rendered in Karma which is being comped over footage. Issue: since its emissive transparent pixels I was unable to replicate the exact look in AE. Currently ignoring the transparency and using screen blend mode. I have read about...
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Hello, I'm trying to set up a recursive cube system that has volume to it like the attached image https://www.reddit.com/media?url=https%3A%2F%2Fpreview.redd.it%2Frecursive-cube-subdivision-and-translation-like-an-l-system-v0-8vn5j5nu8fwa1.jpg%3Fwidth%3D640%26crop%3Dsmart%26auto%3Dwebp%26s%3D0892e69...
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How can I disable the volume visibility in karma?
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Hi guys, In a 2D shape, I need to retrieve the distance of every point to its boundaries, so I tried to use (a 2D) SDF, but it doesn't works properly. How can I fix it? Thanks for helping. Distance To Boundries.hip
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it says in the docs: "Scatter channel to read from the volume object. This acts as a multiplier on the scatter color, to texture the color of the volume." https://docs.arnoldrenderer.com/display/A5AFMUG/Standard+Volume What multiplication is that? 1 (colour white) * density?...
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Title is a bit misleading.. I realise Pyro volume simulations don't really have a birth and death point, but what I'm hoping to achieve is to be able to colour or alter the transparency of my fire closer to the base or emission point of the fire. Currently my fire is looking really nice, apart... -
Hey guys, just a simple question. when should I use VDB and when should I use standard volume？ I noticed that in older versions of Houdini, the VDB doesn't seem to be able to be used in dynamics simulations. -
Hi, what would be the best approach to create this type of simulation (machine gun smoke simulation)? Any Ideas, scene file strategies would be very helpful! Video file: M1A1 Abrams Firing From Hull-Down Positions_1.mp4 Here 's a gif preview -
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Hey folks, proud to present LYNX Tools, a collection of production proven open source tools to accelerate your workflows! All mentioned tools are free to download via the links below and are licensed with a full HoudiniFX license. All Houdini Assets have complete Houdini native documentation av...
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Hello, I've encountered an issue while rendering pyro sim splitted into multiple domains. The best example is the shelf tool's Smoke Trail Effect. I've added additional velocity field to this and several micro solvers. smokeTrail_02.mp4 Is this a render glitch? or a pyro issue? smokeT...
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Hi, I am trying to render a volume which has been rasterized from a bunch of points and that volume is in constant motion. The camera pans fast from left to right tracking the moving volume. I have a test camera that's static and if I take a test render through that static camera, the motion bl... -
I am trying to use the setAllVoxelsFromString() command but its not working. Can someone provide an example? what does the string need to look like? i want to fill a vector volume with values i have from a fga file. First 9 values are for volume size and bounds. The rest is the values...
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Hi I've been playing around with the wdas data set cloud and I've noticed that we houdini users (who are not lucky enough to have access to shaders dveloped by giant companies) lack an overall dense (almost pyroclastic) cloud shader that shows the distinct features of puffy cumulus cloud...
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Hi guys, I have an issue with visible banding artifacts both in a pyro sim and in a volume generated from polygons with iso offset. The artifacts appear as soon as I crank up the density. The source geo for the static volume is the same as the collider geo for the pyro sim, everyth...
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I have a dataset that contains animated volumetric smoke density. The dataset is stored as NPZ files (numpy array save file). How can I load the density of a saved smoke simulation as an animated volume to render it ? For context about the float data in the volumes. This is what simulation numb...
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Hi, I tried to do a tool that will enable user to deform volume by lattice. Here you can find my results. I found many many good example files on this forum so I thought I would share this Hope you will like it Juraj project.hipnc
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At 13:52, this video briefly glosses over using simple geometry to add temperature to a specific area of an explosion: This is pretty much exactly what I want to achieve. The setup looks simple enough, except for an attribute wrangle where he doesn't show what's happening. Does a...
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Hello! I am building a flocking sim, and I am trying to get the turn information to propagate across the flock like a wave. I am using particles as "birds", so each particle represents a bird. I am trying to figure out how to use a ripple solver that uses a volume to broadcast the velocity info...
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I am happy to announce that I'll be joining a host of talented Houdini teachers, like: Debra Isaac Kate Xagoraris Beck Selmes Christopher Rutledge Justin Dykhouse Jeffy Mathew Philip Nicholas Ralabate You can learn more about my Velocity Forces class he...
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Hi all, I generated a mesh, which I converted in volume, then used a box with vdb combine to limit my volume to that box. Problem is near the bounds, the density is fading away. Is there a way to avoid this and keep true density? Thank you, mrblimack
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hey folks. I've been following this amazing tutorial by Tim J but wanted to learn how to add attribute paint or another noise to use as a mask so only certain areas are effected by the volumetric noise I'm quite new to Houdini and have no idea! thanks in advance.
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