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Showing results for tags 'Mask'.
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Hey there, What approach would I take if I wanted to generate points inside a heightfield mask, where the points spread across the center of the mask? Thanks!
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Hi! I used displacement mask for redshift in Houdini.But there was such a problem.I don't want displacement where I mask and blend into the ocean smoothly. You can see the problem on the edges of the mesh in the first photo.How can i fix this? I shared the displacement mask and material setu...
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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 am triggering animation using a mask attribute, converting the mask to a group, and using a copy stamp to offset when animation is triggered. Using this workflow here by the awesome Matt Estela: https://www.sidefx.com/forum/topic/42799/ Everything works and seems great. What I am...
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When I use a slope mask, it is covered at the top area.. I would like to mix with height, so I did multiply both, but there is a very even line. How can I make a slope mask with height without a line? Thanks, have a great holiday y'all Edit: I am using VOP
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Hello, I took a tutorial on heigltfield. It does something super interesting but I really can't seem to apply it on my project. It converted to vdb to combine (ok) but when we do it at home. It gives nothing. how does he do it? Thank you and goo...
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Hi Im creating a cliff in Houdini. I have the blockout of the big shapes, but now I want to cast some smaller rocks in between cracks and edges (concave). I'm using the Measure Curvature node to get a black/white mask of the curvature. But I don't know how I can use this colour information to c...
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Hi, thought I'd share this in this section too: I wrote an article for the german “Digital Production” magazine about my free LYNX VFX toolset. For the article I made a couple of renderings using the LYNX fabric tools. Luckily it even made the cover Here are my personal favorites, the rest...
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Is there a way to procedurally select primitives that are inside a mesh? I tried mask by feature and ray but cannot find a way to select the inside primitives. In the images I show the primitives that are inside (selected manually).
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Hi everyone ! I was wondering if it was possible, on a geometry deformed (by a point deform SOP) to simulate only parts of the geometry that were masked with vellum ? (if needed, I uploaded a scene with the mask I want to simulate). Thanks a lot for the answers ! Vellum_on_mask.hip...
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Hi guys, I wonder, is it possible to generate distance fields out of heightfield masks? I want to create an art directable island and whenever I blur the mask, obviously the the initial shape cannot be maintained. It get's ...washed out. For big islands that's no problem I...
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Hello guys, i using the Particle Fluid Surface SOP to build the mesh of the simulation, however i need the increase the volume of mesh just at bottom of the model. i find the mask options quite usefull doing that job when i place the geometry to use as mask, the entire simulation mesh...
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I am creating a long animation of a boat on an ocean surface. I am using the new guided ocean surface with Houdini 16 to make use of the extended fluid surface blending to an infinite ocean. I am encountering a couple of problems, one being that as the sim continues the boat becomes a submarine due...
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Hi guys, When I cut a Heightfield by an object, the “Heightfield Scatter” node creates points in masked areas! How can I fix this? Thanks for helping. Terrain_01.hip
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Hello guys ! It has been now 3 years I'm working in the VFX industry. I saw a lot of different FX artist/TD so far and I came to the point that there is many ways of doing a pyro sims as there is artist to make it... From all those different artist, I met people doing amazing simulation fro...
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Hi, I'm trying to use a pyro sim to make some realistic clouds and to get the effect I want I need varying levels of dissipation, turbulence, and disturbance at different heights. I've set up some scalar fields and made a gas wrangle to have the gradients I want set up but I can't manage to get them... -
Hi, I have a large volume where most of the volume has no density but some velocity. I want to export vdb's and to save disk space I want eliminate the velocity where I have no density. I found a way by using a volumeVelocity sop where I use my density as a mask, but I'm quite sure that there i...
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Hello, I'm quite new to Houdini and I have a pretty simple question which I haven't been able to figure out. Suppose an open convex plane, how can I make a mask from border to center going from black to white? Attached example images. In my case, a height mask could do the trick too due...
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Is it possible to create a custom heightfield mask with my own name? It seems to me that only the predefined mask names (mask, height, water, debris...) is possible to reference, when working with heightfields? If I wanna create 3-4 different grass masks, for texture splat mapping later, it wou...
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Hi, I have a question about copying velocity's to a flip simulation. I want to create a specific shape in the motion of the fluid. The only way I can get close to that at the moment is to source(copy) a generated velocity into the flip sim. That's because when I add the velocity, it overshoots too f...
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Hi, I have a question about how oceanEvaluatenode in SOP, and ocean_samplelayers node in VOP/MAT pick and match up each spectrum and mask. For instance, I start from shell, ocean flat tank. And go to obj>flattank_fluid_extended. There are node network to create a bake_spectra and bake_masks cac...
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Hey guys, I've noticed the VDB Smooth and the VDB Reshape have a VDB ALPHA MASK thing on the node's second input. I've tried it in the obvious way, connecting another vdb into the second input, but it doesn't work. Can anyone give me a hint on that? My "not working" scene file is attached...
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Hi all, Does anyone know how to use the mask input option to smooth a part of the mesh inside the particle fluid surface node? I want to specify with a volume (ie. a bounding box) which part of the mesh to smooth or keep (instead of using the velocity or vorticity mask)....
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hi, i am currently new to houdini and have been using arnold so far. Currently i am trying to build a procedural texture and have been using ambient occlusion as mask extensively and was happy with the result. However when i render it with animation, the objects move around and so the ambient o... -
Hi! Does anyone knows if it's possible to mask a microsolver by some custom field? (i'm sure it is!) Say i have a smoke expanding in a room, and a turbulence microsolver, and i want to make the turbulence smoothly stops when the smoke hits the walls, is there a way to do it? I was thinking...
