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Found 55 results

  1. Explosion Houdini

    Does anyone know good tutorials for learning Explosions? Thx in Regards
  2. hello guys, im working on a project for which i need to recreate this look in houdini i would really appreciate if some could help me figure out how to do the cape effect im kinda new to houdini and stuck at this effect.. working on a deadline please help out as soon as you can if possible thank you
  3. Hello im a student and pretty new to houdini working on a personal project can u please help me figure out how this effect has been made since im still learning & cant afford high end simulations i would be really grateful if someone could give me an in detail explanation of how to do this... its pretty urgent since i need to finish the project in the next 15 days.. Thank you guys in advance
  4. Can someone please give me an indepth explanation as to why the CPU vs GPU sims look different? I have noticed when making a fire sim, GPU gives a bit more streaky and jagged sim (better licks) than a CPU sim which tends to be a bit more billowy with more 'shrooms' or rounder shapes in general. Sadly GPU crashes on any large scale sims yet I really like the look. How can I get CPU sims to look as streaky and jagged as GPU? Any tricks to stop a GPU sim from crashing? Cheers!
  5. Hello! I want to present you my latest project! Did a test of cloud and fire, the video below. Hip_file is available for download hip file https://gum.co/IlDLG
  6. Hello, I am currently doing some RnD on a rocket engine. For this to work properly, I need a way for my emitter geo to shoot flames with initial velocity in the normal direction of the emitter. I made a gif to show the problem. Red is the emitter, the arrow represents the direction of the initial velocity. Right now, my simulation only shoots flames with an initial velocity in one specified direction. I used the "add initial velocity" in the create volume source node of the emitter. But I don't really know how to animate that. Appreciate any help, thanks!
  7. pyro shader issue

    hi guys i have a problem about pyro shader. whenever i want to get render preview i see this error. i am using houdini 16. can u help me please?
  8. fire propagation

    Hey! I'm doing a pyro sim and I need to set some objects on fire, I'd like to recreate a sort of propagation effect where an object is set on fire on a specific point and then the fire run across the surface. I found some example where some people suggest to go for the "real" solution, set a volume with density and low temperature on the entire object and inject some heat and let it go. that's nice but I'm looking for a more art directable approach, because I'll have to be very specific on when some part of the object will be on fire or not...any idea on how to approach it? thanks!
  9. - Hello everyone im trying to render pyro sim in maya and the problem is fire doesn't appear, instead it show blocky voxel like in the render my setup was : created pyro sim from shelf (Exploison) exporting the sim after converting it to vdb, load in maya via arnold volume (grid density) added aiStandard to the volume, than aiStandardVolume to shading group (in this stat only smoke is visible) So when i try to make emission type "channel" and the channel heat i get this blocky voxel issue Thank you
  10. flame gradient shading

    hey guys! i m trying to make like reference image with houdini. but it's not easy how can make like this reference image?! i mean blueish -> transparency -> bright i need help! verrrrrrry thanks for any tips or advices.
  11. Plastic Curtain on Fire

    Hey guys! Was just wondering what's the best way to melt a plastic curtain with Houdini? Something like this - https://images-na.ssl-images-amazon.com/images/I/51hzskGD15L._SX425_.jpg I want it to melt and shrink in a way the plastic material behaves when it's on fire. There are many melt examples out there using flip but I am not sure how will I achieve the shrinking effect. If you guys can come with any ideas or point me towards the right direction, that would be amazing! Thanks, bifrost
  12. Explosion with PyroFX Series 2

    New tutorial available at cgcircuit. Creating explosion https://www.cgcircuit.com/tutorial/explosion-with-pyrofx-series-2
  13. Hi, i want to make flame in houdini like a campfire with firewoods. i got particles from my emitter but i can't see my firewoods in dopnet. just smoke and fire i have no objects. do you know guys what can i do for this?
  14. Pyro Clustering Tutorial

    In this tutorial we will go over how to set up optimized pyro clustering with oriented DOP containers in Houdini given a piece of geometry moving through a scene. This process will lower simulation time and be more efficient when saving to disk because there are fewer voxels. Link to Tutorial -> https://gum.co/TqUNR We first go over how to get things set up quick and easy and in the second half of the tutorial we make further optimizations using VEX. We'll look at how to rewrite cluster points to do exactly what we need it to, which includes rewriting the resample sop using VEX. An intermediate tutorial for those looking to speed up their pyro workflow and learn some VEX. Includes the scene file! Hope to see everyone leveraging these optimizations in the future and squeezing in those extra few iterations before deadline! You can reach me at trzankofx@gmail.com for questions or comments.
  15. Houdini Flames and Fire Tutorial

    New tutorial at CMIVFX about creating fire and flames, check it out
  16. Hello, The effect I'm trying to create is a dragon fire effect, However since I've added new translation to the particle emitter and and container the simulation no longer runs correctly. I believe this is to do with the individual DOP networks yet I'm not sure. Any help would be great since I've been stuck on this issue for some time Thank you Dragon_flames11.hipnc
  17. New Quick Pyro Tutorial at CMIVFX

    New quick tutorial explaining basics of Houidni clusterin for Pyro and creating flare effects. https://cmivfx.com/houdini-pyro-and-cluster-simulations
  18. rendering fire, test renders

    Hi all! I'm doing some research on rendering pyro explosions, and here's the result of my comparison between mantra on houdini and renderman 21 on maya using a vdb cache from a pyro explosion. https://vimeo.com/218752467 my thoughts I'm pretty happy with both of them, fire looks detailed as I expected from the hi res sim, and I like the way the light scatters through the smoke and lit it. renderman version came out "hotter" in terms of color than the mantra one, but I guess is something to do with the way blackbody radiations infos were passed to the emission component of the shader, so I can probably get closer one to the other by remapping values in a slightly different way mantra pros render the explosion with mantra was fast in terms of setting up the scene, and the shader is much easier to play with. It's also nicely setup when you create the pyro sim, so you can get a nice looking fire in a few click. cons I found render time slower than renderman, and I couldn't find a way of getting rid of the huge amount of noise in the meshes lit by the explosions (especially when the core of the explosion is brighter) , although my render settings are pretty high (I think): pixel samples 9/9, min/max ray samples 1/9 with noise level 0.005, diffuse and volume limit 5 renderman pros I managed to get faster frames with less noise on the surrounding environments cons set up the shader was kind of a pain compared to mantra. I needed to import fields and remap some values to make them work with PxrBlackBody, nothing too complicated but far more slow compared to mantra I'd really like to get feedback, ideas, personal experience or anything you'd like to say about it
  19. FIRE IGNITION - TOO SLOW

    Hello! I'm animating a burning match, and here is my problem : The ignition starts too slowly, even if I set up a fast fire. Is there a way too fix this? This is the kind of ignition I would like to make : Thank you!
  20. Hi everyone, I'm currently working on a blast/pyro effect, and I need some advices about fast colliders. I've fast moving collider that doesn't affect correctly my pyro. the solver seems to be unable to correctly evaluate the motion of my object. Any idea about how to solve this problem. I've a simple animated VDB collider (2 fileds vel and collisionvel) Cheers Bertrand
  21. Hi, I am creating a "velCombined" attribute which I would like to print as a float value which I would then be able to copy/paste relative references. I was not able to find out how to do specifically that. Please help Thanks
  22. New Tutorial about PyroFX

    Check out the new tutorial about creating explosion with pyrofx in Houdini. https://www.cgcircuit.com/course/explosion
  23. Fire freezin

    I'm trying to create "simply" effect which will freez my fire simulation. Currently I have just sphere with standard explosion preset from shell and I would like to create on this fire kind of ice surface to get freezing fire effect. I was thinking that I should first make sim and cache it and after this step I should make layer with this vdb converted on surface and make some noise on it but it can cost me so much pain.. Do you have any other solution how should I start with it? There is also hard to find any references on the internet so I cant paste here anything Hope you can give me some usefull tips in which way should I go and play with it. Simply hip file always welcome.
  24. FX Animator- Houdini Arist Needed

    FX Animator If you are qualified and interested please email Angela at ageier@laika.com with your reel and resume. General Summary The FX Animator is responsible for creating Character and Environment FX, and elements for lighting and compositing to support of the visual style and narrative of the film. They will also be involved in the collaboration of creative and technical tools and workflow. Essential Job Functions Design and create the look of computer generated FX and elements through shot production. Under the supervision of the CG Supervisor, VFX Sup and/or Director help establish and follow the look of the film. Troubleshoot creative and technical issues. Partner with the Modeling, Texturing, Lighting and Compositing and help support each departments’ FX integration issues. Maintain a high level of quality while working on multiple projects, both looks development and shot production under aggressive deadlines. Perform technical work in support of shot production using various production tools. Qualifications Bachelor’s degree in Computer Science, Animation, Art or other relevant area of study and/or equivalent job experience. 3+ years of high-end production experience in television or feature films as an FX artist and/or TD. Experience in producing effects such as smoke, fire, clouds, water, steam and explosions. Knowledge of applicable software and platforms including Maya, Renderman and Houdini REQUIRED. Working knowledge of Digital Compositing in Nuke. Experience with advanced lighting techniques such as Global Illumination, HDRI, subsurface scattering and real world lighting set ups, a plus. Experience with 3D paint packages, a plus. Modeling, Texturing and/or Lighting experience, a plus. Disclaimer The above statements are intended to describe the general nature and level of work being performed by people assigned to this classification. They are not intended to be construed as an exhaustive list of all responsibilities, duties and skills required of personnel so classified.
  25. FX Animator- Houdini Arist Needed

    FX Animator If you are qualified and interested please email Angela at ageier@laika.com with your reel and resume. General Summary The FX Animator is responsible for creating Character and Environment FX, and elements for lighting and compositing to support of the visual style and narrative of the film. They will also be involved in the collaboration of creative and technical tools and workflow. Essential Job Functions Design and create the look of computer generated FX and elements through shot production. Under the supervision of the CG Supervisor, VFX Sup and/or Director help establish and follow the look of the film. Troubleshoot creative and technical issues. Partner with the Modeling, Texturing, Lighting and Compositing and help support each departments’ FX integration issues. Maintain a high level of quality while working on multiple projects, both looks development and shot production under aggressive deadlines. Perform technical work in support of shot production using various production tools. Qualifications Bachelor’s degree in Computer Science, Animation, Art or other relevant area of study and/or equivalent job experience. 3+ years of high-end production experience in television or feature films as an FX artist and/or TD. Experience in producing effects such as smoke, fire, clouds, water, steam and explosions. Knowledge of applicable software and platforms including Maya, Renderman and Houdini REQUIRED. Working knowledge of Digital Compositing in Nuke. Experience with advanced lighting techniques such as Global Illumination, HDRI, subsurface scattering and real world lighting set ups, a plus. Experience with 3D paint packages, a plus. Modeling, Texturing and/or Lighting experience, a plus. Disclaimer The above statements are intended to describe the general nature and level of work being performed by people assigned to this classification. They are not intended to be construed as an exhaustive list of all responsibilities, duties and skills required of personnel so classified.
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