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Showing results for tags 'combine'.
Found 10 results
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Hi there, I want share for free my HDA for combine and export the cache of fluid from cluster system and convert it in VDB. Download here It's a open HDA so you can edit it if you want, please let me know if you do/did it and let me know if you use it in production. It's free, but a little donation is grateful Have a nice day Matteo video demo https://youtu.be/dLj2CaWam7Q
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Hi, I have a problem to render Mantra with multi object type. Whening clicking render button from render view, it shows messages, 'generating scene' and 'Rendering(0.0%)'. However, actual rendering won't start. I am guessing problems are I try to merge different types of geos and render it as one Geo object. Is that really problem for Mantra???? here is test details; 1 - there are polygon, packed Geos, packed fragment, and (polysoup if unpacking ). Of course, NOT merging volumes 2 - This problem happens with turning on motion blur in Mantra. There is no problem with motion blur OFF. 3 - Mantra render's motion blur is ON, and delete attribute v (and w). Then rendering is working. 4 - surprisingly when changing order of merge-lines, rendering works somehow sometimes., strange !! Thus, I have not found logic to fail render mantra. If you have similar issue and solution, let me know, thanks!
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Hello I am trying to mix/combine the density and colour of two different VDBs into one VDB in Houdini (image 1, file attached). For the most part, this is working as desired but there are two main issues: 1. Pink fuzzy edges around the blue VDB - How do I get nice clean edges where the blue VDB smoothly fades out to transparent? (image 2) 2. Blue VDB does not go all the way to the border of the pink VDB - How do I make sure both VDBs finish on the same outside border? (image 3) I have tried adjusting the voxel size, changing the set up of the VDBs (ie. the exterior/interior band voxels, fill interior) but I can't seem to get it working the way I want. Can anyone please help me? I have only been learning Houdini for just over a month so example files would be helpful. Thank you! Mix VDBs.hip
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Hi every one (sorry for my english) I have a little probleme with houdini, I have to simulate 59 candle. I did just one simulation with a pyro solver, and after i did a copy node. So now I have 59 grid with 59 density, 59 temperature etc etc. But the renderer need only one Grid. So my question : How to combine all grid in one ? and keeping the temperature, density, vel etc etc Thanks
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Hi guys, I've already posted this on FB group with no answear so you're my last hope. I have a problem with normals demonstrated in the video, basically object animated on a curve and aligned to the curves tangents hits a geo and gets stuck in it but it doesn't rotate along with it. So basically the question is how can i match the movement of normals of the object beign hit and hitting so that it rotates properly? Here is simplified .hip: link
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Hi, I was wondering if anyone knows any method to combine velocity vectors of x number of VDBs with an average operation. With VDBCombine SOP either Add or Maximum operation will not give me the correct result because the add will put one vector on top of the other and the maximum will just keep the vector with the greater length. I can produce average using a volume wrangler and the avg() vex function but then I am limited to 4 volumes. cheers, C
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Hi guys, I've been trying to layer 2 normal maps inside one shader and I can't quite figure out what is the right way of blending them. I tried mixing them, adding them, multiplying and subtracting the difference but I can't get them to look correct. As a reference I combined the 2 normal maps in Photoshop by overlaying the red and green channels and multiplying the blue one and I still couldn't get it to match in Mantra. In my file you can see that I have the displacement texture nodes and I'm plugging them into the baseN, and then you can compare it with the displacement texture that is already loading the layered normal from Photoshop. The only way I found of doing this in Houdini is going inside the displacement texture node and doing the same I did with Photoshop combining the RGB channels right before they go into the Displacement node and the normals are calculated. The problem is that it's not a very elegant solution, and I also have the problem that I can't do this with a bump and a normal, so I'm trying to figure out how I can layer the normals themselves, not the textures with the color data. How can I blend 2 normal maps together, or 1 normal map and a bump map? Is there any way of doing this manipulating the normals or will I always have to resort to blending the RGB channels and then getting the value of the normals? Here are the renders showing the difference between the layered normals in Photoshop and the one where I add the normals together: Here is the file with the textures. layerNormalMaps.zip Cheers and happy new year!
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hi guys , i have a question of vdb combine within ForEach loop i have few boxes which are being converted to cloud volume and for that i am using for each to simplify the process . but after for each there are multiple vdbs being generated which i want to combine to a single vdb density volume is there a ways to do this within the for each loop which will help a lot as i am not able to figure that out and i am doing the vdb combine manually right now? i have attached my example file to have a look also . thanks in advance VdbCombineINForEach.hipnc
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Hello, My name is Atilla. I'm a new member of this forum and also new in Houdini. I wanted to introduce myself as it is my first post here. I made a pop sop which includes some particles spawned from a sphere and gave them an outward velocity. Now what I'm trying to do is using them in a basic rbd setup containing a ball and drive the ball with those particles like it's exploding. I've searched the forum but because I'm new I think I coudn't even search for what I was looking for . Can anyone show me a way to do so. Thanks;
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Hi there! I'm currently working with VDB tools (for my project) which I'm quite new to and I'm trying to make an object rise from a fluid similar to Peter Claes' "Jam" project. But at the moment, I'm having a few problems. When converting one of my objects to VDB, the whole object is not completely showing when I combine it with another object. The second issue is that, well at the moment it looks like it's coming out of the fluid, but I want to get it more realistic. The fluid is honey so I'm not sure how to add in viscosity for example. The scene file is attached. Any help would be much appreciated! Thanks. I'm not sure why the scene file isn't being attached but there are a couple of pictures if that might help.
