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bifrost

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bifrost last won the day on October 20 2016

bifrost had the most liked content!

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About bifrost

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    LC
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    Vancouver, BC

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  1. Strange Smoke issues

    I just checked your file. Your source is very similar to how your pyro sim looks. You see those chunk of points in your source. You will see that in your pyro sim as well. My advise would be to get a nice looking source first before going into the dopnet. And just as a good measure, cache out your source. You are running a RBD sim and without caching it out, you are sourcing that sim as your pyro source. Very inefficient. I hope this helps.
  2. Strange Smoke issues

    I haven't checked your file but if you are seeing squares in your volume sim, you are seeing voxels probably, which means there is not enough resolution in your pyro container. Go to your pyro object and increase the resolution there.
  3. Aha, gotcha. Thanks a lot Albert for your help on this topic.
  4. This works like a charm. Thanks a lot Albert. I understood what you did in the vdb method. On the 1st method, can you please share what you changed on one of the SOP merge fields so that Houdini is reading the vel data correctly from SOPs?
  5. Hey guys, So I just created a custom vel setup for pyro and it has always worked for me pre H17. However, due to the changes made to H17 on how you source volumes and fields into dopnet, I have zero clue how to make it work. Can anyone one of you Houdini gurus take a look at the file and help me with this please? Thanks, customVel_of.hip
  6. How to apply Turbulence to Pressure field?

    I will give this a try. May be I need to control range on that. Also is there a way to visualise your pressure field?
  7. How to apply Turbulence to Pressure field?

    Thanks for the reply Madi. Is there a way to visualise that pressure field? Edit: just tried pressure as a control field. Doesn't work. There is no difference in the sim with or without it.
  8. Hey guys, can anyone here help me with how to mask my turbulence to my pressure field that pyro creates by default? I tried looking around and a lot of posts have been made talking about that it's a really good way to get rid of mushroom looks and add details at the start of the sim. But I cant find an example file for it. Any help on the subject would be awesome. Thanks
  9. Inherit smoke from texture issue

    Hey guys, I saw Entagma's recent H17 video on smoke inheriting the colour from a texture where he is emitting the smoke inside a donut and smoke inherits the Cd attribute from the donut. I have been trying to do the same but with a little different idea. I just want simple emission from an object and the same object should inherit the Cd from itself. But sourcing Cd that way is giving weird results. Can anyone please help me with this? I am attaching a hip file. Also attached is the texture that I am using in "attribute from map" node. If anybody is interested in the Entagma's video, here it is. Houdini 17 Quicktip: Colored Smoke Thanks, fb coloured_smoke.hip
  10. You can either use a wrangle or a vop node to do an "if else" operation.
  11. Hey guys, I have been having troubles with extracting transforms from an incoming alembic and apply it its vdb. My guess is, that you extract transforms using transform matrices in VOPs and apply it to the position of the vdb. But I don't know how. Can somebody help me with it please? -bf
  12. 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
  13. Melting/Tar simulation

    Anyone?
  14. Melting/Tar simulation

    Hey Houdini gurus, I am trying to achieve this effect of a melting object. (video below) Do any of you lot have idea on how to approach this? My guess if flip fluid but how to get the stretchy and deforming part with it? Any help on this would be really appreciated. Regards, b
  15. Custom Vortex Field - FLIP Whirlpool

    Thanks a lot Atom! That's a great link page you have there. Unfortunately, I wasn't able to find any custom vortex field example in there. There are a couple of tornado ones but their approach is very different that what I want. Also, your file looks great. I will look into it. -b
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