violalyu Posted April 3, 2018 Share Posted April 3, 2018 Hi Houdini friends! I've been trying to do a sim for falling dust, the kind of look I want to get is similar to this: The shape of the leading edge of the falling dust is "spiky" and has the grainy details. I kind of "cheated" by giving it a high disturbance and warp the velocity field so that all vel.y will be going down and scaled down vel.x and z, but when there's interaction with collision geo this will not work since the velocity field is manipulated, and it gives this "sliding" behavior along the collision geo. Attached is an example file that shows this issue. Has anyone done similar sim before or have any advice on how to get this kind of characteristic in the sim? Thank you soooo much in advance! Much appreciated! fallingDust_test.hipnc Quote Link to comment Share on other sites More sharing options...
bloodhawk Posted April 3, 2018 Share Posted April 3, 2018 (edited) Hello Fellow Houdini friend , Iff you have tried everything in Houdini, you can maybe use nparticles in Maya with a drag field right around the region where you want the dust to slow down. Once you have the desired results you can then bring those particles over to Houdini and use a Pyro/smoke setup or use Fume for Maya. Edited April 3, 2018 by bloodhawk Quote Link to comment Share on other sites More sharing options...
bloodhawk Posted April 10, 2018 Share Posted April 10, 2018 Did it work? Quote Link to comment Share on other sites More sharing options...
violalyu Posted April 16, 2018 Author Share Posted April 16, 2018 On 4/10/2018 at 2:35 PM, bloodhawk said: Did it work? Still testing on this lol Quote Link to comment Share on other sites More sharing options...
bloodhawk Posted April 4, 2019 Share Posted April 4, 2019 Hi How are the tests going? 1 Quote Link to comment Share on other sites More sharing options...
Atom Posted April 5, 2019 Share Posted April 5, 2019 You might want to check out this link. I think the main take away is to limit velocity, or zero it out, and just stamp density through the volume. 1 Quote Link to comment Share on other sites More sharing options...
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