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Found 56 results

  1. Hey folks, I started with Houdini very recently and I wanna focus on fx at first. So after trying with the Shelf tools I wanted to stylize my sims. I looked around the web and followed tutorials on a particle based pyro sim (I wanna do an explosion). The problem is, the pyro sim won't work with my PoP really well. I considered that my particles are too fast maybe and added substeps. But that didn't work out either and I don't know how to fix this thing. I hope you could understand my issue. Help would be much appreciated :^) Impact explosion.hipnc
  2. Trouble with exploding RBD SIM

    Hi all, I'm still pretty new to Houdini, but I offered to do my friend a favor by attempting to sim a spaceship crash for his short sci film. It was more of an excuse to learn RBDs in Houdini than anything else, but now that I've invested this much time I really want to make it work. Anyhow, I started with Steven Knipping's Applied Houdini Rigids III Vehicle Destruction course and once I finished that, I tried replacing the supplied helicopter model with a spaceship that I modeled in C4D using a Kitbash kit, so I imagine the geometry shouldn't be an issue. It would appear that I'm very close to getting a workable sim because I got it crashing and denting with the original animation that I set up for the ship. However, I've been running into a bit of a snag if I change the crash animation. For whatever reason, if I move the ship at all to match any of the tracked alembic cameras I was sent, either by changing the keyframes of the crash itself, or even by simply attaching the entire animation to another null and moving it in the scene, the ship totally blows up. You can see what I mean in the last 3 previews found in VFTV\render of the attached project folder. Maybe I'm missing something very basic, but as far as I can tell this shouldn't be happening, as my understanding is that the hard constraints I'm using on most of the ship aren't supposed to break unless I tell them to in the art directed cuts section of the frac SOP. Anyway, the first preview in the VFTV\render folder shows that the sim more or less works with the camera matching but without denting, and the second shows the crash with denting but with no camera matching. But, for whatever reason I couldn't get the source tracked cameras working directly in Houdini, so I took them into C4D first, changed the resolution and alembic camera scale, and exported them at .01cm from C4D, and after that they seemed to line up in Houdini once I changed the camera view resolution to match. However, my troubleshooting brain is telling me that I might've messed something up during this process and perhaps the explosion is due to mismatching scene/camera scale issues with the alembic cameras that the tracking artist sent causing the sim to be calculated differently. I'm not even sure if the C4D camera scale option affects the sim in Houdini and/or C4D, but scene scale certainly does, and if the imported camera scale is messing with scene scale, then maybe that's the problem. That said, I don't think that's the reason, because if I leave the original animation alone it seems to sim fine even with the new cameras. And, I believe I'm matching the scale correctly and using the right conversion which is supposed to be .01cm from C4D to Houdini. I've also messed around with exporting different camera scales and scene scales out of C4D and importing the alembics back into Houdini using several different methods, all with the same result. But, I realize it might help me to know more about which software each shot was tracked in, so I'm double checking with the guy at Framestore, who did the tracks, regarding the scene scale conversions. I was thinking Syntheyes might be different from Nuke for example. That said, I would be eternally grateful if anyone was willing to look at the project and let me know what they think the problem could be. My hope is it's something stupid on my part, and not some overly complex issue. Here's a Dropbox link to a reduced version of the project with all the assets VFTV_Smoldering_Wreckage_1_200813_v001.hiplc
  3. Help with explosion sim

    Anyone know what parameter(s) is causing all the smoke to quickly fall towards the end of the simulation? explosion.mov
  4. Smoke inside RBD object

    Hello everyone! I try to create something like glass sphere explosion which contain smoke inside, BUT I can not do it. I created RBD object, simulated explosion, create smoke emitter inside, smoke accumulate inside, but after explosion all smoke disappear in few frames. Do U have any ideas, how to solve it? attached screen before and after (its just an example of scene).
  5. IED explosion pyroFX help

    Hi everyone, does anybody have any idea of how i achieve an instant explosion like this video with pyrofx https://www.youtube.com/watch?v=MBSTDing_aQ i cant seem to get the instant explosion i desire no matter what i tweak in Houdin
  6. Hello everyone. I made an explosion. I am rendering it at Arnold. However, I want to apply rest noise to temperature, but I am not sure how to do it. Inside the shop, I created the arnold shader as shown below. And I tried to apply rest noise. I don't know if I do this, but ... Rest noise doesn't seem to be applied, and when you just apply noise, the noise is broken. I want to make noise naturally, what should I do? Please help me. Thank you.
  7. Boat explosion

    Hey guys, Here's a new project I'm working on as I have some free time. The boat is a free model from cadnav. The main rbd sim with instanced debris is there : https://streamable.com/pcayf I used the new rbd deform pieces for the mesh (which is pretty useful) and I'm looking to add some noise and more details to the edges later. I've made the explosions (but infortunately I have only 119 frames because it crashed, I may resimulate the explosions 1 by 1 instead of the 4 in a row) : https://streamable.com/sjcje I've also made a quick low res render to see how the ocean and the explosions behaved all together with a lil bit of comp (to match my background) : https://streamable.com/1sduw Now I need to add sparks, smoke trails, and flip white water, and maybe additionnal splashes, refine the ocean.. Cheers and happy confinement !
  8. Nuclear Explosion Rnd

    Hey guys! I'm new here. I'm working on a school project and also i can call it my personnal project that i want to create a nuclear explosion in the desert. I've done couple of versions myself but i am not very satisfied about the result, i have a big problems here: the explosion is way too fast (the rolling effect.etc) and that looks like a small scale explosion. Do you guys have any ideas or suggestions? 13.mov
  9. Senior Houdini Artist (Remote)

    Artist Michelle Lopez is seeking a part-time temporary mid-senior level animator to modify an existing 360 degree animation of an explosion depicting moving debris. Seeking artist with 3-5 years production Houdini experience and 1-2 years Nuke experience for 1-3 weeks of remote work, freelance flexible schedule. The video will be one aspect of an immersive video and sound installation to be presented at the Franklin Institute Planetarium in Philadelphia. The video brings together natural disasters, cultural iconography, the aftermath of violence and visualizations of entropy. Please reach out with reel/resume to michellelopez@me.com Low_Res_Joplin_Snip.mov
  10. pyro not straight?

    hey guys i just created explosion and why my pyro arent moving up straight? already out bouyancy on Y axis but it still goes to the right side. anyone can help me solve this problem?
  11. Nuke Explosion

    hi guys I've been tasked with creating a nuclear explosion for a current project to match this reference: been having lots of issues matching the kind of skirt of the pyro (the bit under the head of the explosion), I was wondering if you have had any tips or tricks. I would really appreciate any help. Thanks all!!
  12. Explosion timing methods?

    Hi all, Going to get straight to my point here. I've been trying to wrap my head around a proper workflow for achieving good timings explosion and smoke simulations. Let's say in this example explosion , the look and the timings are great. My ideas are either having proper advection methods, using animated divergence, injecting high velocities for first few frames and then using drag to slow it down or (last idea I had today) using Time Warp node, to retime the whole explosion caches to your preferred look. Could someone experienced enough drop a few lines around what the approach of an FX artist is whilst tackling a explosion in a shot for a film or just in general. Am I going down the right path with these methods or is it completely off? Thanks
  13. Hello Everyone, I have just create a ground breaking interaction effect on Houdini 17. In this tutorial we cover how to use H17 to creat ground breakking interaction with character. We will learn how to isolate inside group to create random debris, smoke and control the displacement on rendering of breaking parts. Please, Feel free to Check in here: https://www.cgcircuit.com/tutorial/ground-breaking-interaction Regards, Nhan Vo
  14. Create a Trail explosion in Houdini 17.5

    Hey all, I am trying to do a explosion like this in the picture. I am very desperate, I have searched up the whole internet around but have find nothing... I have tried to do some particle emitting from a sphere with some forces but it wasn't like this... Can someone help me please... ps. if someone have time to make a hip file for me it would be a bigger help thanks in advance,
  15. Exploding Fruit!

    Hello, there good people, I really need help with this subject and I don't know what am I doing wrong to not get my replies on my posts If anyone knows why please help. Anyways I wanted to get a fruit to explode and be squishy, So Fracture RBD isn't really an option. And when I try FEM you can't really create a shell object as it fills the whole object with tets. Plus FEM is so slow and unstable -Don't know if I am doing something wrong-. Also, a sidenote how do I add custom exploding force to FEM Sims. Thank you so much in advance and I really hope someone helps me out as this is driving me crazy.
  16. How to make a cool explosion

    Hey all, I need some help, to create a cool explosion like in the picture... I want to make it with some particles... How I can make this effect?? can someone make a list how to make it...
  17. I am having a really tough time matching the reference of cannon firing from an old pirate ship. I am not able to get the smoke quality and shape or the wind that picks it up. My sim always ends up looking too powdery or thick. If I lower dissipation then the fire or explosive part remains too long. I would be grateful for a working scene file or a setup. Here is the reference:
  18. Strange Smoke issues

    Hey all, so I have a explosion, but the smoke is like small Squares...that's very strange. What I make wrong...the smoke shouldn't be squares but normal... (I hope everybody understand me, what I try to explain) I hope someone can solve this problem... it would be very nice edit: one file is damaged so try the other Smoke explosion problem.hipnc Smoke explosion problem.hipnc
  19. Sulaiman - Compositing/Houdini FX

    Hi everyone! I am a VFX Artist who just recently graduated from 3dsense Media School who specialises in a wide range of skillsets Below is a Vimeo link to my showreel as well as my submission to The Rookies! Do feel free to drop me a message, thank you! Contact me and check my channels: sulaimanwar18@gmail.com https://linkedin.com/in/sulaimanwar/ https://www.artstation.com/sulaimanwar =================================== https://vimeo.com/325603170 https://www.therookies.co/entries/427 FinalProject10.mov
  20. Senior Houdini Artist (Remote)

    Artist Michelle Lopez is seeking a part-time temporary mid-senior level animator to modify an existing 360 degree animation of an explosion depicting moving debris. Seeking artist with 3-5 years production Houdini experience and 1-2 years Nuke experience for 1-3 weeks of remote work, freelance flexible schedule. The video will be one aspect of an immersive video and sound installation to be presented at the Franklin Institute Planetarium in Philadelphia. The video brings together cultural iconography, the aftermath of violence and visualizations of entropy. Please reach out with reel/resume to michellelopez@me.com In-process, low-res version of animation:
  21. Smoke is "killing" me

    While the subject may have been true in the Bay Area last month, the subject is much more about the vexation of getting smoke right. I had found a little bit of time to go through Steven Knipping's Rigids II video and decided to add some debris and smoke. To source the debris and smoke, I processed the constraint breaks. For the smoke source, I made a tiny pop sim with noise and some velocity filtering. The smoke for the explosion has pretty high velocities, e.g. around 30 units/s. Initially, the smoke was basically just smooth mushrooms. I then introduced a high value disturbance against the velocity field in the low density areas. This broke up the smoke but I never was able to get it right. Here is where I ended after I had decided I had spent too much time; see video below - ignore obnoxious sound track :-) Would anyone here be willing to point me in a direction on how to improve this? I ran a bunch of wedges against lower resolution simulations. The overall smoke container ended up being really large, so sim-ing and rendering low resolution wedges took a few hours of turn around. Hip file attached for anyone who wants to take a look. Thank you, Niels. rigids2_v7.hiplc
  22. pyro explosion using grain

    hi, am working on an explosion shot (desert explosion). i have seen some grain adverted pyro examples . can anybody give some tips doing it ?
  23. Hi Does anyone know good tutorials for learning Explosions? Thx in Regards Balaji J
  24. previs large explosion scenes

    What is the general approach to blocking out and timing previz for large multi explosion effects(with RB debris). I'm hesitant to jump into pyro until I have a rough idea of size/amount/speed/variety. I'm considering just animating primitives with changing colours and getting these signed off first, but I'm worried the decision makers won't be able to see past simple geometry references. I guess studios have stockpiles of explosion assets they can work with. Any thoughts appreciated. Thanks James
  25. Animate parameter per cluster

    Hello ppl! Have a question about pyro clustering that i've been thinking about for a long time now. So i have multiple explosions on impact and i'm using pyro clustering for that. How do you animate parameters per cluster? For example i need the timescale to be 2 when an explosion starts and gradually come down to 0.5 after few frames, but per cluster. Any ideas on how to approach this? Unfortunately i can't share my scene file. But you can find the similar setup here. Thank you!
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