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Jesper Rahlff

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Jesper Rahlff last won the day on December 25 2018

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About Jesper Rahlff

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    Illusionist
  • Birthday 10/03/1988

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    https://vimeo.com/219049639
  • Skype
    Rahlff21

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    Jesper
  • Location
    Vancouver

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  1. How to apply Turbulence to Pressure field?

    hm it should work. Did you set the control influence to 1 and then remap the values?
  2. for the dual rest field I believe the math needs to be as follows: (rest * rest_ratio) + (rest2 * rest_ratio2). the output of this will now be your rest field
  3. How to stop emission of smoke?

    another way is to animate your Volume source node, you can animate the scale from 1 to 0 in your density field
  4. fireworks forming shapes

    people would be more keen to share an example file with you if you uploaded one as well showing that you have tried to recreate this FX on your own.
  5. Earth atmosphere with Redshift (or finding the "ANY" KEY)

    I cannot share a simple example of this because I am at work right now, so you will have to test it your self. But I am pretty positive this will work
  6. Earth atmosphere with Redshift (or finding the "ANY" KEY)

    My understanding is that because the VDB is a sparse volume if you do the subtraction of the earth geo from the atmos volume and then use a VDB activate node it will deactivate the voxels which has a value of 0 hence not storing that data. You can visualize that with the VDB Visualize Tree node.
  7. Earth atmosphere with Redshift (or finding the "ANY" KEY)

    can you not just convert the earth geo to a volume and subtract that from the atmos volume leaving you with only the visible atmos?
  8. I just use CTRL + X to cut the node. keep doing that and you overwrite your cut history essentially removing the node
  9. vellum and FLIP feedback force (floating vellum)

    how about using a proxy SDF volume as your collision object for Vellum?
  10. Try using chs() specifying that the input value is a string.
  11. overwrite default state based on parameter on HDA

    here is a screenshot. I created an empty subnet, converted it to an HDA. The parameter on the HDA which is circled red here is the one I want to override. This parameter is available on an HDA by default. its not related to anything going on inside the subnet
  12. overwrite default state based on parameter on HDA

    No one?
  13. Houdini engine smoke

    you are welcome. let me know if anything is unclear
  14. Houdini engine smoke

    attached is a simple example of how I would set it up to get ultimate control over resolution of your volume without having to sim a billion points. OdForceVolumeQuality_suggestion.hipnc
  15. Hey Peeps. Not sure which category this questions belongs to so I threw it into the general question forum. I am currently building an HDA with one of the functions of this HDA is to draw curves. In order for me to be able to draw the curve on the top level of the HDA with the drawcurve tool I have to set the default state of the HDA to 'Stroke'. This is all working fine. My issue is now that because the HDA is holding more than one "Mode" I only want the default state to be 'Stroke' when the mode is set to utilize the draw curve function. In other words, I only want the interactive draw tool in the viewport to be active when a certain parameter is active. I hope I explained this well enough, if not let me know and I will try to be more visual with a simple example file (at work currently so cannot share anyting). Thank you in advance. Cheers
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