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Found 149 results

  1. Smoke Effect Color Problem

    Iam Working on creating smoke combined with particles for the color , the color shows in my Dop netwerp but when i go up i wont show , anyone know how to fix than? thx in regards
  2. Pyro Smoke querries

    Hey, I am new to Houdini, and I am facing some problems with creating smoke. I have a scene where in there is a lot of smoke inside of the building which is the aftermath of a huge fire that burnt down the place. I need to show lingering smoke which is just floating around the area. Not much internal motion and nice and big shapes. Can anyone please guide me on how to go about this effect ? I have used 'dry ice' from the Pyro shelf and have gotten some interesting results. I am not liking the look I need (which is wispy) and softer edges with less internal motion. Thanks many !
  3. How to Make a long smoke in Houdini

    Hey guys ,I spent lot of time to make a long and silim smoke in Houdini with Pyro, but I can't get the same effect like this. Any one knows how to make this kind of smoke in Houdini? the original video is here:
  4. Smoke Effect skin

    Hi Everyone I was wondering if someone knows how I can create this effect I have just done a simple smoke simulation, but I do not know how to make the inside: also, if anyone knows, I am trying to create this object with the exterior like the purple surface, but the inside to look like this: ANY HELP WOULD BE APPRECIATED
  5. Smoke Effect skin

    Hi Everyone I was wondering if someone knows how I can create this effect I have just done a simple smoke simulation, but I do not know how to make the inside: also, if anyone knows, I am trying to create this object with the exterior like the purple surface, but the inside to look like this: ANY HELP WOULD BE APPRECIATED
  6. Pyro FX density vs heat

    Hello, Does any one kno why the density field is being used as a binding for the threshold in the shape parameters of the pyro effect simulation once you use the "smokeless flame" preset? Its kind of weird that it takes density into account because density represents the smoke and we are trying to shape just the flames... Thanks, Diogo
  7. Hey guys, i need to emit the same smoke trail even from the other part of the jet, I cached out my simulation but i just need the smoke trail and not the jet so that i can transform it onto the other part. Any idea how to cached out only the smoke trail from the simulation. Here is my file spaceship_01.hip
  8. How does Pyro FX works?

    Hello everyone, Does any of you know where can I find in depth knowledge of the pyro solver (I wouldn't mind the resources went further into math and implementation), its workflows and rendering pypeline? The documentation by sideFX is very poor in this case, and the tutorials on the subject are even worse (the usual -> "I think if you move this slider, it does this...") . Thank you, Diogo
  9. Hey Guys i need some help actually i want to emit the same smoke trail exactly from the other side of the jet, Do i need to repeat each and every step again to emit the same smoke or is there any way to copy the same smoke trail. Am new to houdini so dn't know much stuff Here is the screenshot of my file -
  10. Well am new to houdini and trying this tut where i have to emit smoke from this jet but i don't know how to get rid of this sprite spacing I have tried to increase the number of particles and also adjusted the scale and ramp of the pop sprite but its giving me the same result. Here is Screenshot of my file -
  11. Test destruction

    My work for January - February 2018. These are tests on destruction of 16 Houdini. I ask for your opinion on quality
  12. Smoke falling down

    Hello magicians! I found a cool picture and I thought I'd give a shot in houdini, here's the reference: } Here's what I have so far: Any thoughts to help get the effect on the picture? maybe advecting particles? Hip attached Thanks! smoked.hip
  13. Inside DOP cluster grid source

    Hi Friends, I need your help!! I'm playing with DOP, trying to understand it and feel comfortable working with data.. I come across one issue that I have trouble with.. Is there a way to create cluster grid inside dop? The problem is that I need to timeshift whole range to get initial data for clusters.. Here is the hip file, you can take a look.. I would appreciate some extra feedback about the way I approached with this setup.. I'm I doing something wrong? Thank you!! Regards, M in_dop_clustering_help.hipnc
  14. Cable Overheating

    Hi everyone, For an upcoming project, I need to create the effect of an extension cable overheating. ie. holes being burnt in the plastic casing of a wire and then smoke emitting from them. This is a good reference, particularly the shot at 1:26 https://www.youtube.com/watch?v=jGPkkOU3Uf8 The problem I am currently having is that for smoke to emit from these little holes, the source volume has to be really tiny. This requires a ridiculously low division size just to get the sim to work, making it impossible to easily preview the simulation. I'm thinking there must be a better method for doing this, so if anyone has any suggestions, I'd be happy to hear them!
  15. Hi Houdini friends! I'm having some issues with getting velocity field to work with volume clustering... I made a simple example file (please see attached) to show this issue, and in my actual scene I've also tested with force and deforming static objects as collision, and both seem to work, but not with velocity field, and this velocity field will work if i turn off instancing on smoke object and fluid source with the same exact set up. Does anyone else had this before or have any idea how this is caused or workarounds? Thank you sooooo much in advance! Best, Viola cluster_velFieldIssue.hipnc
  16. Secondary combustion?

    Hello! I am trying to make an effect similar to these references: [link] (time 3:25) [link] I am somewhat new to pyro (but familiar with DOPs for FLIP and RBDs), and I have a simulation that looks like the "first" line of smoke, but I'm not sure how to cause secondary combustion (if that is something you can do?). Based on the reference it seems to work in 3 parts, starting with a stream of smoke, a small plume, and a larger plume. I'm unsure how to cause the simulation to have multiple plumes after the initial combustion, and have control over the size of that combustion. Any advice is welcome!
  17. Smoke Solver Collision on Type

    Need a bit of help on a problem for a client, ( on an NDA as well ). Basically, I have a pipeline that shoots to Octane in C4D for the VDB usage and the smoke sim I made is fine and they are head over heels for it but the type (in the smoke) in the first frame is too pixelated for them and not high res enough. I've been trying to find the right amount of density and type space to keep the titles as sharp as possible but when I put them into C4D and play around about it's still exported in Alpha somewhat pixelated. Any ideas? I have a sample hip of the pig had at a reasonably replicated density to the pig but I need it to be more stoic. Smoke_collide_pig.hip
  18. Hello! I'm having a bit of dilemma here... Currently I have a setup in which I'm emitting particles from selected points on my mesh that drive the pyro sim. I'm using the source from points option to do this. It works but I'm lacking control of the velocity. Currently, I'm working on a group of points via the bindGroup option on the attribvop and altering the normal inside the vop. Nevertheless, is this a good way to do this or is there a better method to have particles emit from the gills to drive the pyro sim. Really could use some help on this... thanx!
  19. I'm looking for a tutorial. I want to make something like dust smoke that spreads from all directions after the bomb explodes. Thank you for your help. Dear.
  20. Hi So I want to make the smoke fill the spiral tube and I'm pretty close to result I've been aiming for but i've run into a problem I can't seem to resolve. At one point in the simulation smoke stops responding to forces and just follows the tube (attachment). My process of making this set up: 1. convert tube to volume 2. attract billowy smoke emitted from sphere to the volume tube (attract fluid) 3. add a curve force (curve was used to make the tube so it is in the middle of the tube) I've tried changing every paramiter I could think of but nothing helped. Anyone has any ideas? Smoke preview youtube Smoke_problem.mp4
  21. Pyro Emit Smoke Problem

    Hi, I have an explosion, but I cant seem to get the look I want. I want the initial blast to just be transparent fire then as it cools down become smoke. I turned on create dense smoke and adjusted the heat cut off so that smoke is only created once it reaches a certain "coolness". However, that heat cutoff function doesn't seem to work. It always emits smoke, it doesn't seem to wait for the heat to cool down before it creates smoke. As a result, there is wayyy tooo much smoke early on. So much that when you render it the smoke is over powering the fire. What can I do to just have flames then smoke as the fire cools? Here is a good example: https://vimeo.com/156039861 Thanks explosion002.hipnc
  22. Crowd and Volume collisions

    I have baked agents loop for crowds. I need some hints how to generate smoke, dust on the each crowd agents footsteps for walk, run on a dusty terrain adaption in compositing for example, at what level does it have to be done?
  23. Advice needed for pyro sim

    Hi Guys, I am currently working on a shot where I need to simulate an object falling slowly through deep water whilst bleeding (The more blood the better). Initially I began with a pretty simple setup, An emissive object, a collision object and a divergence volume which is being used for expansion. The problem I am running into is that I need the smoke to continually expand, whilst becoming more diffused and transparent, but to always remain in the sim. So I have disabled dissipation as I don't want to lose density, but this leaves me with a dense volume which isn't transparent or diffused. I would like the density that is in the sim to have an aged based blurring. I did try to achieve this with a gas dissipate and heat field but this still wasn't right. I have also spent time trying to tweak the pyro shader to achieve the desired effect but I am not having much luck. Below is an example of the look I am trying to achieve. Between 0:21 and 0:34 Any advice will be greatly appreciated. Many thanks, Clive Blood_in_water_odforce.hip
  24. Explosion with PyroFX Series 2

    New tutorial available at cgcircuit. Creating explosion https://www.cgcircuit.com/tutorial/explosion-with-pyrofx-series-2
  25. Changing smoke trail to combust

    Hello! I'm a total Houdini newbie, so if the answer to this obvious, I'm sorry! I'm trying to make a tire that follows a path using clustering, so I thought the easiest way to do this would be to change the sources given with the sky trail shelf tool and allow the simulation to combust. This mostly works, except one cluster randomly minimizes as soon as it is required in the middle of the path (after the third box appears). This does not happen while the simulation is just smoke with no fire. Any ideas what could be going wrong? plane_smoke_prototype4.hipnc